CN117220242B

CN117220242B - Method, circuit and related device for controlling stability of power supply circuit

Info

Publication number: CN117220242B
Application number: CN202311473404.8A
Authority: CN
Inventors: 马柏杰; 温玉磊
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-11-08
Filing date: 2023-11-08
Publication date: 2024-04-12
Anticipated expiration: 2043-11-08
Also published as: CN117220242A

Abstract

The application discloses a method, a circuit and a related device for controlling the stability of a power supply circuit. The power supply circuit comprises a power supply module, a protection module, a control module and a load module. The power supply module supplies power to the load module through the protection module, the protection module is used for achieving overcurrent protection and stability protection of the power supply circuit, the protection module comprises an overcurrent protection device and a bypass connected with the overcurrent protection device in parallel, and the control module is connected with the bypass of the protection module and controls conduction or blocking of the bypass according to whether external force is received or not. The method for controlling the stability of the power supply circuit comprises the following steps: under the condition that the power supply circuit is not affected by external force, the power supply module supplies power to the load module through an overcurrent protection device in the protection module; under the condition that the power supply circuit is affected by external force, the overcurrent protection device is disconnected, and the control module controls the bypass in the protection module to be conducted, so that the power supply module supplies power to the load module through the bypass of the protection module.

Description

Method, circuit and related device for controlling stability of power supply circuit

Technical Field

The present disclosure relates to the field of terminals, and in particular, to a method, a circuit, and a related apparatus for controlling stability of a power supply circuit.

Background

In a power supply circuit of an electronic device, a circuit Breaker (break) is generally used as a circuit protection device. The break of the break in the power supply circuit can be broken except the break under the overcurrent condition to protect the circuit, when the electronic equipment is affected by external force, the power supply of the electronic equipment can not be normally supplied, and therefore the electronic equipment is powered off or restarted, and the normal operation of the electronic equipment is affected.

Based on the above-mentioned problems, how to control the power supply circuit of the electronic device to remain stable is a problem to be solved.

Disclosure of Invention

The application provides a method, a circuit and a related device for controlling the stability of a power circuit, which can keep the power circuit on under the condition that the power circuit is influenced by external force and a circuit breaker is disconnected with the power circuit, so as to ensure that electronic equipment does not run in a power-down mode.

In a first aspect, there is provided a power supply circuit comprising: the switching device comprises a first power supply, a first circuit breaker, a switching device, a control module and a load module; the first power supply is connected with the first circuit breaker and the load module in series, the first circuit breaker is connected with the switching device in parallel, the first circuit breaker is conducted, and the switching device is disconnected; in the event that the power circuit is subjected to a first force, the first circuit breaker opens; the control module is used for controlling the switching device to be conducted under the condition that the power circuit receives a second acting force smaller than or equal to the first acting force.

Therefore, after the power circuit provided by the first aspect is adopted, when the circuit breaker in the power circuit is disconnected under the condition of external force influence, the parallel bypass conduction of the first circuit breaker can be controlled in advance, so that the power circuit path is continuously maintained, the stability of power supply to a load is ensured, and the problem of power supply interruption is avoided.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the first force comprises a force greater than or equal to a first value and the second force comprises a force greater than or equal to a second value, the first value being greater than or equal to the second value.

Therefore, on the premise that the first acting force causes the interrupter to disconnect the power supply passage, the shunt connection of the interrupter can be controlled in advance, and further, the power supply continuously and stably supplies power to the load under the influence of any force, and the stability of the power supply is further guaranteed.

With reference to the first aspect, the circuit implemented by the first aspect further includes: after the switching device is turned on, the control module is used for controlling the switching device to be turned off in the case that the first circuit breaker is turned back on.

Therefore, under the condition that the circuit breaker is conducted, the power supply can supply power to the load preferentially through the passage of the circuit breaker, and the safety of the power supply circuit can be ensured by utilizing the overcurrent protection function of the circuit breaker.

With reference to the first aspect, the circuit implemented by the first aspect further includes: before the control module is used for controlling the switching device to be switched off, the on-time of the switching device is a first time. The first time length is the time length of automatic recovery after the breaker is disconnected under the influence of external force.

Therefore, after the circuit breaker is recovered to be communicated, the power supply circuit supplies power to the load preferentially through the circuit breaker, and the safety requirement of the power supply circuit is met and the stability requirement of the power supply circuit is met.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the first circuit breaker comprises a metal part, a movable part and a spring plate; the first circuit breaker conducting comprises: the movable part is directly connected with the elastic sheet; the first circuit breaker opening includes: under the condition that the current in the first circuit breaker exceeds a first threshold value, the metal part is deformed by heat and supports the movable part to disconnect from the direct connection with the elastic sheet; the first circuit breaker opening further comprises: in the case that the power circuit receives a first acting force, the movable part is disconnected from the direct connection with the elastic sheet.

Therefore, the movable direction of the movable part in the plurality of circuit breakers can be set, when the movable directions are different, the on and off states of the circuit breakers are different under the influence of the same force, and when the circuit breakers are stressed, the circuit breakers are disconnected, but the circuit breakers are conducted at the same time, so that the stability of a power circuit can be ensured. With reference to the first aspect, the circuit implemented by the first aspect further includes: the power supply circuit also comprises a positive temperature coefficient effect PTC resistor, and the metal part is connected with the elastic sheet through the PTC resistor; the first circuit breaker conducting comprises: under the condition that the current in the first circuit breaker exceeds the first threshold value, the metal part is deformed by heat and supports the movable part to disconnect the direct connection with the elastic sheet, so that the movable part is indirectly connected with the elastic sheet through the metal part and the PTC resistor.

Therefore, through combining the PTC resistor in the circuit breaker, the circuit breaker can be ensured to be disconnected in the process of realizing the overcurrent protection function, the purpose of overcurrent protection is achieved only by using the PTC resistor, so that the overcurrent protection can be realized without cutting off the circuit, and the stability of the power supply circuit is ensured.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the switching device comprises a P-channel metal oxide semiconductor (PMOS), wherein the grid electrode of the PMOS is connected with the control module, and the source electrode of the PMOS is connected with the positive electrode of the first power supply and one end of the first circuit breaker; the drain electrode of the PMOS is connected with the other end of the first circuit breaker; the control module controls the switching device to be conducted specifically comprises: the control module controls the voltage difference between the grid electrode and the source electrode of the PMOS to be lower than a second threshold value, so that the PMOS is conducted.

Therefore, the PMOS is used as a switch unit, and can transmit the current provided by the power supply to the load by larger current, and can be used as a switch for controlling the bypass of the interrupter to be conducted or blocked, namely, the PMOS integrating the switch function and the large current transmission function is used, so that the circuit design cost is reduced.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the control module comprises an N-channel metal oxide semiconductor NMOS and a controller; the drain electrode of the NMOS is connected with the switching device; the drain electrode of the NMOS is also connected with the anode of the first power supply through a resistor; the source electrode of the NMOS is grounded; the grid electrode of the NMOS is connected with a control signal port of the controller; the control module is used for controlling the switching device to be conducted, and specifically comprises the following steps: the controller sends a high-level signal to the gate of the NMOS through the control signal port, so that the voltage difference between the gate and the source of the NMOS is larger than a third threshold value.

Thus, by employing NMOS as the control device, the circuit design cost can be reduced.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the power supply circuit further includes: a second power supply and a second circuit breaker; the first power supply and the first circuit breaker are connected in series in a first circuit, the second power supply and the second circuit breaker are connected in series in a second circuit, and the first circuit is connected in parallel with the second circuit; the first power supply is used for supplying power to the load module through the first circuit breaker, and the second power supply is used for supplying power to the load module through the second circuit breaker; when the power circuit receives a force in a first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the power circuit receives a force in a second direction, the first circuit breaker is opened, and the second circuit breaker is conducted; the first direction is opposite to the second direction.

Therefore, besides the stability of the power circuit is ensured by controlling the bypass conduction and blocking of the circuit breakers, the circuit breakers which are respectively connected in series with at least two power supplies are reversely arranged by arranging a plurality of groups of power supplies, and under the influence of the same force, the circuit breakers which are reversely arranged by the disconnected circuit breakers are still in a communicated state even though one of the circuit breakers is disconnected, so that the stability of the power circuit is further ensured.

With reference to the first aspect, the circuit implemented by the first aspect further includes: the power supply circuit further includes: a second power supply, a second circuit breaker; the first movable part of the first circuit breaker has a first direction and a second direction, and the second movable part of the second circuit breaker has the first direction and the second direction; when the first movable part and the second movable part move towards the first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the first movable member and the second movable member are moved in the second direction, the first breaker is opened and the second breaker is closed.

Therefore, the specific implementation method for connecting at least one breaker under the influence of the reverse direction of the breaker to ensure the stress can be realized by setting the directions of the movable parts in the breakers to be opposite, so that when the movable parts move in the same direction, one breaker is disconnected from the other breaker to be connected, and the stability of the power supply circuit is ensured.

In a second aspect, there is provided a method of controlling stability of a power supply circuit, the method being applied to a power supply circuit comprising: the switching device comprises a first power supply, a first circuit breaker, a switching device, a control module and a load module; the method comprises the following steps: the first power supply is connected with the first circuit breaker and the load module in series, the first circuit breaker is connected with the switching device in parallel, the first circuit breaker is conducted, and the switching device is disconnected; in the event that the power circuit is subjected to a first force, the first circuit breaker opens; the control module controls the switching device to be conducted under the condition that the power circuit receives a second acting force smaller than or equal to the first acting force.

With reference to the second aspect, the method implemented by the second aspect further includes: the first force comprises a force greater than or equal to a first value and the second force comprises a force greater than or equal to a second value, the first value being greater than or equal to the second value.

With reference to the second aspect, the method implemented by the second aspect further includes: after the switching device is turned on, the control module controls the switching device to be turned off in case that the first circuit breaker resumes to be turned on.

With reference to the second aspect, the method implemented by the second aspect further includes: before the control module controls the switching device to be switched off, the on-time of the switching device is a first time.

With reference to the second aspect, the method implemented by the second aspect further includes: the first circuit breaker comprises a metal part, a movable part and a spring plate; the first circuit breaker conducting comprises: the movable part is directly connected with the elastic sheet; the first circuit breaker opening includes: under the condition that the current in the first circuit breaker exceeds a first threshold value, the metal part is deformed by heat and supports the movable part to disconnect from the direct connection with the elastic sheet; the first circuit breaker opening further comprises: in the case that the power circuit receives a first acting force, the movable part is disconnected from the direct connection with the elastic sheet.

With reference to the second aspect, the method implemented by the second aspect further includes: the power supply circuit also comprises a positive temperature coefficient effect PTC resistor, and the metal part is connected with the elastic sheet through the PTC resistor; the first circuit breaker conducting comprises: under the condition that the current in the first circuit breaker exceeds the first threshold value, the metal part is deformed by heat and supports the movable part to disconnect the direct connection with the elastic sheet, so that the movable part is indirectly connected with the elastic sheet through the metal part and the PTC resistor.

With reference to the second aspect, the method implemented by the second aspect further includes: the switching device comprises a P-channel metal oxide semiconductor (PMOS), wherein the grid electrode of the PMOS is connected with the control module, and the source electrode of the PMOS is connected with the positive electrode of the first power supply and one end of the first circuit breaker; the drain electrode of the PMOS is connected with the other end of the first circuit breaker; the control module controls the switching device to be conducted specifically comprises: the control module controls the voltage difference between the grid electrode and the source electrode of the PMOS to be lower than a second threshold value, so that the PMOS is conducted.

With reference to the second aspect, the method implemented by the second aspect further includes: the control module comprises an N-channel metal oxide semiconductor NMOS and a controller; the drain electrode of the NMOS is connected with the switching device; the drain electrode of the NMOS is also connected with the anode of the first power supply through a resistor; the source electrode of the NMOS is grounded; the grid electrode of the NMOS is connected with a control signal port of the controller; the control module controls the switching device to be conducted, and specifically comprises the following steps: the controller sends a high-level signal to the gate of the NMOS through the control signal port, so that the voltage difference between the gate and the source of the NMOS is larger than a third threshold value.

With reference to the second aspect, the method implemented by the second aspect further includes: the power supply circuit further includes: the first power supply and the first circuit breaker are connected in series in a first circuit, the second power supply and the second circuit breaker are connected in series in a second circuit, and the first circuit is connected in parallel with the second circuit; the first power supply is used for supplying power to the load module through the first circuit breaker, and the second power supply is used for supplying power to the load module through the second circuit breaker; when the power circuit receives a force in a first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the power circuit receives a force in a second direction, the first circuit breaker is opened, and the second circuit breaker is conducted; the first direction is opposite to the second direction.

With reference to the second aspect, the first movable part of the first circuit breaker has a first direction and a second direction, and the second movable part of the second circuit breaker has the first direction and the second direction; when the first movable part and the second movable part move towards the first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the first movable member and the second movable member are moved in the second direction, the first breaker is opened and the second breaker is closed.

In a third aspect, there is provided another power supply circuit comprising: the device comprises a first power supply, a first circuit breaker, a second power supply, a second circuit breaker and a load module; the first power supply and the first circuit breaker are connected in series in a first circuit, the second power supply and the second circuit breaker are connected in series in a second circuit, and the first circuit is connected in parallel with the second circuit; the first power supply is used for supplying power to the load module through the first circuit breaker, and the second power supply is used for supplying power to the load module through the second circuit breaker; when the power circuit receives a first directional force, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the power supply circuit receives a force in a second direction, the first circuit breaker is opened, the second circuit breaker is conducted, and the first direction is opposite to the second direction.

Therefore, by adopting the circuit provided by the third aspect, the direction of the circuit breakers in different power supply paths is opposite, when the influence of the stress of the power supply circuit is ensured, the circuit breakers are disconnected, and the circuit breakers reversely arranged with the disconnected circuit breakers are communicated, so that the stability of the power supply circuit can be ensured only by the layout of circuit devices, an additional digital control circuit is not required, and the circuit design cost is reduced.

The circuit structure with multiple groups of power supplies and multiple groups of circuit breakers are connected in parallel in an anti-parallel mode, another feasible circuit structure for stabilizing the power supply circuit structure is provided under the condition that a switching device and a control module are not adopted, and the implementation scheme of the power supply circuit is enriched.

With reference to the third aspect, a circuit implemented by the third aspect includes: the first circuit breaker comprises a metal part, a movable part and a spring plate; the first circuit breaker conducting comprises: the movable part is directly connected with the elastic sheet; the first circuit breaker opening includes: under the condition that the current in the first circuit breaker exceeds a first threshold value, the metal part is deformed by heat and supports the movable part to disconnect from the direct connection with the elastic sheet; the first circuit breaker opening further comprises: the power circuit receives the acting force in the second direction, and the movable part is disconnected from the direct connection with the elastic sheet.

Thus, a specific structure for implementing the first circuit breaker of the third aspect is specifically described, and the implementation possibility of the circuit breaker of the third aspect is improved.

With reference to the third aspect, a circuit implemented by the third aspect includes: the power supply circuit also comprises a positive temperature coefficient effect PTC resistor, and the metal part is connected with the elastic sheet through the PTC resistor; the first circuit breaker conducting comprises: under the condition that the current in the first circuit breaker exceeds the first threshold value, the metal part is deformed by heat and supports the movable part to disconnect the direct connection with the elastic sheet, so that the movable part is indirectly connected with the elastic sheet through the metal part and the PTC resistor.

Thus, the internal structure of the circuit of the third aspect is further described, improving the realisation of the overcurrent protection function of the first circuit breaker in the power supply circuit.

With reference to the third aspect, a circuit implemented by the third aspect includes: the first circuit breaker includes a first movable member, and the second circuit breaker includes a second movable member; the first movable part of the first circuit breaker has a first direction and a second direction, the second movable part of the second circuit breaker has the first direction and the second direction; when the first movable part and the second movable part move towards the first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected; when the first movable member and the second movable member are moved in the second direction, the first breaker is opened and the second breaker is closed.

Thus, the specific circuit structures inside the first circuit breaker and the second circuit breaker of the circuit of the third aspect are specifically described, the specific circuit structure for realizing the circuit functions of the third aspect is provided, another feasible circuit structure for stabilizing the power supply circuit structure is provided, and the implementation scheme of the power supply circuit is enriched.

In a fourth aspect, the present application provides a chip comprising a power supply circuit, the power supply circuit being a circuit as described in any one of the first and third aspects above.

In a fifth aspect, the present application provides a computer readable storage medium comprising instructions which, when run on a power supply circuit, cause the power supply circuit to perform the method described in any one of the second aspects above.

In a sixth aspect, the present application provides an electronic device comprising one or more processors, one or more memories, and a power circuit; wherein the one or more memories are coupled to the one or more processors, the power circuit being the circuit described in any of the above first and third aspects.

Drawings

Fig. 1 is a schematic diagram of a power circuit according to an embodiment of the present application;

FIG. 2 is a schematic flow chart of a method for controlling the stability of a power supply circuit according to an embodiment of the present application;

fig. 3 is a schematic diagram of a device for controlling the stability of a power circuit according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a power circuit for controlling stabilization according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of another power circuit for controlling stabilization according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of another power circuit for controlling stabilization according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a hardware architecture of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and thoroughly described below with reference to the accompanying drawings. Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

In a power supply circuit of an electronic device, a Breaker (break) is generally used as an overcurrent protection device of the power supply circuit, and for a specific description of this type of power supply circuit, reference is made to the specific description shown in fig. 1.

Referring to fig. 1, fig. 1 illustrates a schematic diagram of a power supply circuit.

As shown in fig. 1, the power supply circuit includes a power supply, a Breaker, and a load. Wherein the power supply is connected with the load through a Breaker. Specifically, the power supply includes: an internal battery of the electronic equipment, an external power supply of the electronic equipment and the like; breaker includes: the device comprises a spring plate 1, a spring plate 2, an arm rod, a bimetallic strip 101 and a positive temperature coefficient effect (Positive Temperature Coefficient, PTC) resistor 102, wherein the arm rod is a movable component, and the PTC resistor 102 is an optional device; the load includes: electronic device connection devices, wire resistances, terminal devices, etc.

The following describes three states of the Breaker control circuit, on, current limiting and off.

(1) Breaker is in a connected state. The communication state specifically includes: when the current in the circuit does not exceed the threshold current, breaker is conducted, and specifically, breaker is conducted through the contact of the arm lever and the elastic sheet 2. Specifically, the circuit formed by the Breaker through the arm lever is a fourth circuit. Further, since the current in the circuit does not exceed the threshold, the break heat generation amount is small, and the degree of thermal expansion of the bimetal 101 is small, the bimetal 101 (one of the metal parts) is not in contact with the arm, and the arm is not supported to be disconnected from the spring piece 2. Therefore, when the Breaker is in the connected state, the current flows in the Breaker as the spring 1, the arm lever, the spring 2, and does not flow to the bimetal 101 and the PTC resistor, i.e., the resistance of the current passing portion is small, and only milliohm-level resistance is provided. The threshold current may be determined by the maximum current that each component in the circuit can carry.

(2) Breaker is in a current limited state. The current limiting state specifically includes: breaker turns on the current limiting protection when the current in the circuit exceeds the maximum current that the current protection can accept. Specifically, the maximum current that can be accepted by the overcurrent protection is a first threshold. If the PTC resistor is provided in the Breaker, the Breaker reduces the current in the circuit by connecting the heated PTC resistor in series to the path. If the PTC resistor is not arranged in the Breaker, the Breaker breaks the passage through deformation of the metal sheet after being heated, so that the passage is broken. Wherein, for the PTC resistor is arranged in the Breaker, when the current value in the circuit exceeds the current threshold value of overcurrent protection, the Breaker has large heating value, the bimetallic strip 101 is heated and expanded, contacts with the arm rod to conduct and supports the arm rod to lift, so that the bimetallic strip is disconnected with the elastic sheet 2. Therefore, when the Breaker is in the current-limiting state, the current passing device in the Breaker comprises the spring plate 1, the arm lever, the bimetallic strip 101, the PTC resistor 102 and the spring plate 2, and at the moment, the resistance of the PTC resistor 102 is improved after being heated, so that the resistance of the current passing part is larger, and the excessive current is restrained.

(3) Breaker is in an off state. The off state specifically includes: when the circuit is affected by external force, breaker is disconnected, and the power supply circuit is in an off state. Specifically, when the power supply circuit is affected by a first force, such as gravity when falling and impact when hitting the ground, the device in Breaker is also affected by an external force, including that the spring plate 2 in Breaker is disconnected from the arm, and the bimetal 101 is disconnected from the arm. At this time, the break is in an off state, and if the load circuit system does not consider the power failure problem caused by break, the system triggers a restart or shutdown operation, thereby affecting the use experience of the device. Specifically, the power supply circuit may be temporarily subjected to the falling gravity and the first acting force when the power supply circuit collides with the ground, and then disappear after a period of time, or oscillate, and then generate an impact force in the opposite direction after generating an impact force in a certain direction, and then disappear after a period of time. Specifically, the first acting force is an acting force greater than or equal to a first value, wherein the first value depends on the break resistance of the break, the physical structures of different break are different, the conditions of breaking under the influence of external force are different, and the first value can be a threshold comprehensively obtained by testing the external force applied when the break is broken in a large number.

Wherein an optional first value may be that the acceleration of the power circuit (the device in which the power circuit is located) is 1 gravity acceleration (Gravitational acceleration, g), i.e. 9.8 meters per square second (m/s) ² ) The corresponding force of 1 g may also be referred to as a third value.

As can be seen from the schematic diagram of the power supply circuit shown in FIG. 1, when the electronic device is affected by external force, the Breaker in the power supply circuit is disconnected, so that the power supply of the electronic device cannot normally supply power, and further the shutdown or restarting phenomenon occurs, thereby affecting the normal operation of the device.

In order to solve the technical problems, the application provides a method, a circuit and a related device for controlling the stability of a power circuit. The power supply module supplies power to the load module through the protection module, the protection module is used for achieving overcurrent protection and stability protection of the power supply circuit, the protection module comprises an overcurrent protection device and a bypass connected with the overcurrent protection device in parallel, and the control module is connected with the bypass connected with the overcurrent protection device in parallel in the protection module and controls conduction or blocking of the bypass according to whether external force is applied or not.

The method for controlling the stability of the power supply circuit comprises the following steps: under the condition that the power supply circuit is not affected by external force, the power supply module supplies power to the load module through an overcurrent protection device in the protection module; under the condition that the power supply circuit is influenced by external force, the overcurrent protection device is disconnected. At the moment, the control module controls the bypass connected with the overcurrent protection device in parallel in the protection module to be conducted, so that the power supply module supplies power to the load module through the bypass connected with the overcurrent protection device in parallel.

By implementing the method, the circuit and the related device for controlling the stability of the power supply circuit, the following effects can be achieved:

(1) On the premise of not influencing the overcurrent protection function, the stability of power supply of the power supply in the electronic equipment is improved.

(2) The hardware cost of the control circuit is lower, and the control scheme is simple and effective.

The application provides another method, a circuit and a related device for controlling the stability of a power supply circuit. The power supply circuit comprises a power supply module, a protection module and a load module. The power supply module is used for supplying power to the load module through the protection module, the protection module is used for realizing overcurrent protection and stability protection of the power supply circuit, the protection module comprises a plurality of overcurrent protection devices which are connected in parallel, and the movable directions of the movable connecting parts in at least two overcurrent protection devices are set to be opposite directions.

The method for controlling the stability of the power supply circuit comprises the following steps: when the power supply circuit is subjected to external force in any direction, the first overcurrent protection device and the second overcurrent protection device are subjected to external force in the same direction, and the movable directions of the movable connecting parts of the first overcurrent protection device and the second overcurrent protection device are opposite, so that a situation can always exist, and the first overcurrent protection device or the second overcurrent protection device is conducted. For example: the first overcurrent protection device is connected, and the second overcurrent protection device is disconnected; or the first overcurrent protection device is disconnected, and the second overcurrent protection device is connected; or the first overcurrent protection device and the second overcurrent protection device are both conducted.

By implementing the method, the circuit and the related device for controlling the stability of the power supply circuit, the following effects can be achieved: (1) The electronic equipment is prevented from being accidentally powered off due to the influence of external force in any direction, so that the electronic equipment is restarted or closed, and the resistance of the electronic equipment to the external force is improved; specifically, for external force in any direction, a conductive overcurrent protection device exists in the power supply circuit, so that the power supply module can supply power to the load module through the channel.

(2) The hardware cost of the control circuit is lower, the scheme principle is simple, and the implementation is easy.

In combination with the two schemes described in the present application, both schemes may be implemented independently, or may be implemented in combination as one scheme. When the two embodiments are combined into one embodiment, the protection module includes a plurality of overcurrent protection devices, wherein the movable directions of the movable connection parts in at least two overcurrent protection devices are set to opposite directions, at least one overcurrent protection device connection bypass is included, and the bypass is connected with the control module. For the combination scheme, the effect of controlling the stability of the power supply circuit can be realized in the mechanical structure dimension or the electronic control dimension.

Next, a method of controlling the stability of the power supply circuit according to the present application will be specifically described.

Referring to fig. 2, fig. 2 illustrates a flow of a method for controlling the stabilization of a power supply circuit provided by the present application.

As shown in fig. 2, the method involves modules including a power module, a protection module, a control module, and a load module, and for a specific description of the above modules reference is made to the modules shown in fig. 3 below. The method comprises the following steps.

S201, a power supply in the electronic equipment supplies power to other modules.

Specifically, after the electronic equipment is started, a power supply circuit in the electronic equipment is started, namely, a power supply supplies power to a load module in the electronic equipment. For example, the power supply provides power to a display screen, processor, sensor, etc. of the electronic device.

S202, detecting whether the electronic equipment is affected by external force.

Specifically, the electronic device may detect whether the electronic device is affected by an external force after the electronic device is powered on, for example, the electronic device may detect whether the electronic device is affected by the external force through data collected by a motion sensor (for example, an acceleration sensor, a gyroscope sensor, etc.). And if the acquired data meets the preset conditions, the step S203-1 is executed to represent that the electronic equipment is affected by external force, and if the acquired data does not meet the preset conditions, the step S203-2 is executed to represent that the electronic equipment is not affected by external force.

Optionally, the preset condition may include that the electronic device detects whether the electronic device is affected by an external force based on data collected by the acceleration sensor, and specifically includes: and (3) periodically collecting acceleration data and detecting, and if the detected acceleration is larger than a third value or the detected acceleration is larger than or equal to the third value for a plurality of times within a second time period, executing the step S203-1. If the acceleration is detected to be less than or equal to the third value, step S203-2 is performed. In particular, the second duration may be determined by the duration of time that the common behavior is affected by external forces, such as the weight force caused by a drop and the duration of the impact force when it hits the ground. The third value is greater than or equal to 1 gravitational acceleration (Gravitational acceleration, g), i.e. 9.8 meters per square second (m/s) ² )。

Alternatively, whether the electronic device is affected by an external force is detected, whether the electronic device is affected by the external force may be detected by a control module in the electronic device based on the obtained acceleration value, or whether the electronic device is affected by the external force may be detected by a processor in the electronic device based on the obtained acceleration value, and the detection result is sent to the control module.

S203-1, the electronic equipment controls a bypass passage of an overcurrent protection device in the protection circuit through the control module, so that a power supply supplies power to other modules through the bypass.

After the control module determines that the electronic equipment is affected by external force, the overcurrent protection device is considered to be disconnected, and then the control module controls the bypass of the overcurrent protection device in the protection module to be conducted, so that the power supply stability of the power supply can be ensured.

Specifically, the control module controls bypass conduction of the overcurrent protection device in the protection module, and the bypass conduction comprises: the control module sends a high-level control signal to a bypass of an overcurrent protection device in the protection module, and the control module is used for conducting the bypass in the protection module.

S203-2, the electronic equipment controls the bypass of the overcurrent protection device in the protection circuit to be disconnected through the control module, so that the power supply supplies power to other modules through the overcurrent protector.

After the control module determines that the electronic equipment is not affected by external force, the overcurrent protection device is considered to be not disconnected, and then the control module controls the bypass of the overcurrent protection device in the protection module to be disconnected, so that the overcurrent protection device can be ensured to work normally, and the power supply is enabled to be stable.

Specifically, the control module controls bypass disconnection of the overcurrent protection device in the protection module, including: the control module sends a low-level control signal to a bypass of an overcurrent protection device in the protection module, and the control module is used for disconnecting the bypass in the protection module.

S204, the electronic equipment controls the bypass of the overcurrent protection device in the protection circuit to be disconnected through the control module, so that the power supply supplies power to other modules through the passage of the overcurrent protector.

Specifically, when the electronic device performs step S203-1, the bypass of the overcurrent protection device is turned on, which corresponds to the overcurrent protector being shorted. Since the external force is temporary and the overcurrent protection device is a physical device having elasticity and being recoverable, the overcurrent protection device can recover the connection after a recovery period of time has elapsed after step S203-1. In order to enable the overcurrent protection device to recover the current limiting protection function, the bypass is controlled to stop conducting, namely, the electronic equipment sends a control signal (such as the low-level signal) through the control module, and the overcurrent protector bypass in the protection module is controlled to enter an off state, so that the electronic equipment is powered through the overcurrent protector.

Specifically, the recovery period may be referred to as a first period, and the specific period is greater than or equal to a time required for recovering the connection after the common behavior is affected by the external force.

Based on the foregoing description of the method shown in fig. 2, the method can be applied to an apparatus for controlling the stabilization of a power supply circuit of fig. 3. Next, a schematic diagram of an apparatus for controlling the stability of a power supply circuit will be described with reference to fig. 3.

As shown in fig. 3, an apparatus for controlling stabilization of a power supply circuit includes: the device comprises a power supply module, a protection module, a control module and a load module.

The power module is used for providing working voltage for other modules. Specifically, the power module may include: the internal battery and the external power supply can be one or more, the plurality of internal batteries and the external power supply can be connected in series or in parallel, the internal battery and the external power supply can also be combined into a battery pack or a power pack, and the battery pack and the power pack can also be connected in series or in parallel. Specifically, the power module is connected to the load circuit through the protection module to provide power for equipment in the load circuit.

The protection module is used for protecting working devices in the circuit from being burnt by high current, particularly between battery packs or power packs connected in parallel in the power module and in a circuit for providing power for other modules by the power module, so that the power module or other modules are prevented from being burnt by the high current; the protection module is also used for preventing the circuit interruption of the power circuit caused by external force impact so as to improve the stability of the power circuit. Specifically, when a current exceeding a threshold value occurs in the power supply circuit, the protection module suppresses the current exceeding the threshold value; when the electronic equipment is impacted by external force, the bypass passage of the overcurrent protector in the module is protected, so that the system in the electronic equipment is protected from being turned off or restarted. Specifically, the composition of the protection module may include: and an overcurrent protector, which bypasses. Specifically, the over-current protector may be a Breaker, an air switch, a current limiting integrated circuit (integrated circuit, IC), etc., and the over-current protector bypass may include: a circuit constituted by a PNP type triode (NPN type triode), a circuit constituted by a P-channel metal oxide semiconductor (Positive Channel Metal Oxide Semiconductor, PMOS) tube, a circuit constituted by a metal oxide semiconductor (Metal Oxide Semiconductor, MOS) tube, and the like. Specifically, the current limiting IC may be used as a primary protection in the protection module, and the Breaker may be used as a secondary protection in the protection module.

The control module is used for controlling the opening and closing of the protection module. Specifically, the composition of the control module may include: PNP transistor, N-type metal oxide semiconductor (Negative Metal Oxide Semiconductor, NMOS) transistor, current limiting resistor, antistatic diode, etc. Specifically, the control module controls bypass conduction in the protection module when external force is applied, so that conduction of the power supply circuit is maintained.

The load module is used for operating normally under the support of the power supply module. Specifically, the load module composition may include: in electronic devices other circuits, devices and modules, such as circuits constituting a processor, a display screen, an acceleration sensor, a gyro sensor, other modules, etc.

The method flow and apparatus for controlling the stability of a power supply circuit described in fig. 3 include the following description of a specific circuit structure implementation for controlling the stability of a power supply circuit, for example, a specific circuit structure for controlling the stability of a power supply circuit shown in fig. 4 is described.

Referring to fig. 4, fig. 4 exemplarily shows a structure diagram of a power supply circuit for controlling stabilization.

As shown in fig. 4, the circuit includes: devices constituting the power module, such as an internal battery and an external power supply;

The devices forming the protection module, such as Breaker, PMOS, protection IC, MOS tube 1 and MOS tube 2;

devices that make up the control module, such as current limiting resistors, NMOS, electrostatic protection diodes, and general purpose input/output (GPIO) interfaces. Wherein, the GPIO interface may be named as a general purpose input output switching (gpio_mos_sw) interface;

devices that make up the load module, such as panel-to-panel connectors (Board to board Connectors, BTB), sampling resistors, printed circuit board (Printed Circuit Board, PCB) resistors, and load terminals.

It should be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the structure of the power supply circuit described above. In other embodiments of the present application, the power circuit structures described above may include more or fewer components than shown, or certain components may be combined, certain components may be split, or different arrangements of components may be provided. The illustrated components may be implemented in hardware, software, or a combination of software and hardware. For example, the power supply circuit structure described above may not include: protection IC, sampling resistor, MOS pipe 1, MOS pipe 2, battery BTB, PCB resistance.

Specifically, the connection mode between the modules includes: the power module is connected with the load module through the protection module, and the control module controls the bypass of the overcurrent protection device in the protection module. The specific connection modes between the circuits are as follows:

The circuit connection between the power module and the protection module specifically comprises: the positive electrode of the power supply is connected with the Breaker and the PMOS, the PMOS is connected with the Breaker in parallel, and the negative electrode of the power supply is connected with the sampling resistor, the MOS tube 1 and the MOS tube 2. Specifically, the positive electrode of the power supply is connected with the shrapnel 1 of Breaker and the PMOS Source (Source, S); the shrapnel 2 of Breaker is connected with the PMOS Drain electrode (Drain, D); the power supply negative electrode is connected with the MOS tube 1 and the MOS tube 2 in series; the protection IC is connected with the MOS tube 1 and the MOS tube 2 at the same time.

The circuit connection between the protection module and the control module specifically comprises: the power supply is connected with the grid electrode and the source electrode of the PMOS through the current limiting resistor in series NMOS. Specifically, two ends of the current limiting resistor are connected with a PMOS grid electrode (Gate, G) and a PMOS source electrode; the NMOS drain electrode is connected with the PMOS grid electrode and is connected with the current limiting resistor in series to be connected with a power supply; the NMOS source electrode is grounded; the NMOS grid is connected with the electrostatic protection diode and the GPIO-MOS-SW interface in parallel.

The internal circuit connection of the protection module specifically includes: the PMOS is connected in parallel with the Breaker for secondary protection, and the connection mode of the PMOS and the Breaker is the same as the circuit connection of the protection module and the control module, and is not repeated; the protection IC in the protection module controls the MOS tube 1 and the MOS tube 2 which are connected in series, and is one-stage protection.

The circuit connection between the protection module and the load module specifically comprises: the Breaker elastic sheet 2 and the PMOS drain electrode are connected with one end of the battery BTB, are connected with a PCB resistor in series and are connected with one end of a terminal load; the MOS tube 2 is connected with the other end of the battery BTB, is connected with a sampling resistor in series and is connected with the other end of the terminal load, and is grounded.

Three states for controlling the operation of the stabilized power supply circuit are specifically described below.

(1) The overcurrent protection device in the power supply circuit is in a communication state. The communication state specifically includes: when the current in the power supply circuit does not exceed the current threshold value of overcurrent protection, breaker is conducted, and specifically, the Breaker is conducted through the contact of the arm lever and the elastic sheet 2. Specifically, the description of the Breaker may refer to the method that the Breaker is in the connected state in fig. 1, which is not described herein. When the electronic equipment is not impacted by external force, the processor outputs low level to the NMOS grid electrode through the GPIO-MOS-SW interface, at the moment, the NMOS source electrode is grounded to be low level, and the voltage difference between the NMOS grid electrode and the source electrode is smaller than NMOS threshold voltage because the NMOS source electrode and the grid electrode are both low level, and NMOS conduction conditions are not met, so that the NMOS source electrode and the drain electrode are blocked. And because the PMOS grid electrode is connected with the NMOS drain electrode, and the PMOS source electrode and the PMOS grid electrode are connected in series with the current limiting resistor and connected to the positive electrode of the power supply, the voltage difference between the PMOS grid electrode and the source electrode is about 0 and does not meet the PMOS conduction condition, the PMOS source electrode and the drain electrode are blocked, which is equivalent to break of a break bypass, and the power supply supplies power to other modules through a break channel. Specifically, the gpio_mos_sw interface is connected in parallel with the electrostatic protection diode and connected with the NMOS gate, so that the NMOS can be prevented from being burnt out due to abrupt voltage exceeding the bearing capacity of the NMOS.

(2) The overcurrent protection device in the power supply circuit is in a current limiting state. The current limiting state specifically includes: when the current in the circuit exceeds the current threshold of the overcurrent protection, the Breaker starts the current limiting protection, and the power circuit is in a current limiting state. Specifically, the description of the Breaker may refer to the method that the Breaker is in the current-limiting state in fig. 1, which is not described herein. When the power supply circuit with stable control is in a current-limiting state, the processor outputs a low level to the NMOS grid electrode through the GPIO-MOS-SW interface, so that the NMOS source electrode and the drain electrode are blocked. The PMOS grid electrode is connected with the NMOS drain electrode, and the voltage difference between the source electrode and the source electrode of the PMOS drain electrode is approximately equal to 0, and the PMOS conduction condition is not met, so that the PMOS source electrode and the drain electrode are blocked, which is equivalent to break of a Break bypass, and a power supply supplies power to other modules through the Break channel. Therefore, the normal use of the Breaker can be ensured by controlling the stable power circuit module part. Specifically, for a specific description of the connection and state of the NMOS and PMOS, reference may be made to the description of the power supply circuit in the connected state in fig. 4, which is not repeated herein.

Specifically, when the power supply circuit is in a current-limiting state, whether the circuit forms a loop or not, whether current exists in the circuit or not depends on whether PTC exists or not: if a PTC device is included in Breaker, then current is present; if the PTC device is not included in Breaker, it is turned off directly. Specifically, when the PTC device is included in the break, the circuit formed in the break is the third circuit. Alternatively, the current limit of the Breaker may be implemented by a bimetal and a PTC resistor, or the current limit and interruption of the Breaker may be implemented by other manners, for example, the Breaker is disconnected when the current exceeds a threshold value by an electromagnetic coil, which is not limited herein.

(3) The overcurrent protection device in the power supply circuit is in an off state. The connection and disconnection state specifically includes: when the electronic equipment is impacted by external force, the Breaker is disconnected, the Breaker is in an off state, and the power supply module maintains current through a bypass of the Breaker, namely a channel of the PMOS. Specifically, the description of the break state of the break may refer to the description of the break state of the break in fig. 1, which is not described herein. When the electronic equipment is impacted by the second acting force, the processor outputs a high level to the NMOS grid electrode through the GPIO-MOS-SW interface, and the voltage difference between the grid electrode and the source electrode is larger than a third threshold value because the NMOS source electrode is extremely low level and the grid electrode is high level, so that NMOS conduction conditions are met, the NMOS source electrode and the drain electrode are conducted, and the NMOS drain electrode voltage is reduced. The PMOS grid electrode is connected with the NMOS drain electrode, so that the voltage of the PMOS grid electrode is pulled down, the PMOS source electrode is connected to the positive electrode of the battery, the PMOS source electrode is extremely high level, the grid electrode is low level, the voltage difference between the grid electrode and the source electrode is smaller than a second threshold value, and the PMOS conduction condition is met, so that the PMOS source electrode and the drain electrode are conducted, which is equivalent to the Breaker bypass conduction, and the power supply supplies power to other modules through the Breaker bypass passage, so that the stability of the power supply circuit is maintained under the condition that the Breaker is disconnected.

The second force includes a force greater than or equal to a second value. The second value depends on the break resistance of the Breaker, the physical structures of different breakers are different, the conditions of breaking under the influence of external force are different, the second value can be a threshold value comprehensively obtained by testing the external force applied by breaking of the Breaker in a large number, and the threshold value is smaller than or equal to the minimum external force applied by breaking of the Breaker, and the second value is not particularly limited in the application.

Wherein an optional second value may be that the acceleration of the power circuit (the device in which the power circuit is located) is 1 gravity acceleration (Gravitational acceleration, g), i.e. 9.8 meters per square second (m/s) ² ) The corresponding force of 1g may also be referred to as a third value.

In summary, by controlling the stable power supply circuit, the circuit is ensured not to be disconnected due to the disconnection of the Breaker, so that the load is not powered down.

Fig. 4 is a block diagram of a control stable power circuit provided by the present application, and next, based on the necessary devices in fig. 4, another control stable power circuit using multiple groups of battery packs in parallel as power sources may refer to fig. 5.

Referring to fig. 5, fig. 5 illustrates another power supply circuit schematic diagram for controlling stabilization.

As shown in fig. 5, the power circuit for controlling stability includes a power module, a protection module, a control module, and a load module, where the connection modes of the above modules may refer to the connection modes of the above modules described in fig. 4, and are not described herein again. Specifically, the circuit shown in fig. 5 differs from the circuit shown in fig. 4 in that: a group of batteries is additionally arranged, and correspondingly, the additionally arranged batteries are also connected with Breaker2 in series, and the additionally arranged batteries and the Breaker2 are connected in parallel with the batteries and the Breaker shown in fig. 4. The battery and Breaker shown in FIG. 4 are denoted as battery and Breaker1 in FIG. 5.

Specifically, the break 1 may also be called a second circuit Breaker, the power supply connected in series with the break 1 may also be called a second power supply, the break 2 may also be called a first circuit Breaker, the power supply connected in series with the break 2 may also be called a second power supply, the circuit formed by the first circuit Breaker and the first power supply may also be called a first circuit, and the circuit formed by the second circuit Breaker and the second power supply may also be called a second circuit, wherein the first circuit and the second circuit are connected in parallel. In addition, the bypass of Breaker2 may also be referred to as a first switching device, and the bypass of Breaker1 may also be provided with a second switching device (not shown in FIG. 5).

In fig. 5, the connection directions of the movable connection parts of the two breeker are the same, that is, the connection directions and the movable directions of the two breeker arm bars are the same, so that the two arm bars can all move towards the same direction when the two arm bars are subjected to the external force in the same direction. Specifically, the external force applied to the arm lever includes deformation of the metal sheet, dropping of the device, and the like. After the Breaker1 arm lever and the Breaker2 arm lever are in a communication state, when any battery pack in the power supply has the condition that the current exceeds a threshold value, the corresponding Breaker arm lever of the battery pack can timely disconnect a passage, so that other devices in the power supply circuit are prevented from being burnt by the current exceeding the threshold value. As shown in fig. 5, taking the case that the break 1 arm lever and the break 2 arm lever are in the break state as an example, after the power supply circuit is impacted by external force, the break 1 arm lever and the break 2 arm lever are both broken, and as the control module can control the bypass of the break 2 to be conducted, any one or all of the break 1 arm lever and the break 2 arm lever are broken, the power supply can form a loop with the load through the bypass of the break 2, so that the normal work of the load without power failure is ensured. Because the directions of external forces applied to the circuits at the same time are the same, and the connection directions of the arms of the Breaker1 and the Breaker2 are the same, the Breaker1 and the Breaker2 are normally in an off state under the influence of the external forces.

Alternatively, the power supply circuit shown in fig. 5 is only an example, and in addition, the power supply circuit may further include more groups of power supplies and breakers, at least one Breaker is connected in parallel with a switching unit, and a control module for controlling the switching unit to be turned on or off. When a plurality of breakers are arranged, the breakers can be respectively connected with the switch units in parallel, and then the switch units are connected through a control module so as to realize the common control of the conduction or the blocking of the switch units; or, the plurality of switch units can be respectively connected through a plurality of control modules so as to realize independent control of the conduction or the blocking of the switch units.

Fig. 4 illustrates a block diagram of a power circuit for controlling stabilization provided in the present application, and referring to fig. 6, another scheme of using multiple battery packs in parallel as power sources is based on the related devices in fig. 4.

Referring to fig. 6, fig. 6 illustrates another power supply circuit schematic for controlling stabilization.

As shown in fig. 6, the power circuit for controlling stability includes a power module, a protection module, a control module, and a load module, where the connection modes of the above modules may refer to the connection modes of the above modules described in fig. 5, and are not described herein. Specifically, the circuit shown in fig. 6 differs from the circuit shown in fig. 5 in that: a power supply and a Breaker connected in series with the power supply are added, and fig. 6 only illustrates adding a set of power supply and Breaker. In the break shown in fig. 6, the directions of connection of the movable connection parts of at least two break are opposite, i.e. the directions of connection of the arms of at least two break are opposite to the movable directions.

In fig. 6, the connection directions of the movable connection parts of the two breeker are opposite, that is, the connection directions of the two breeker arm rods are opposite to the movable directions, so that only one of the two arm rods is deformed to disconnect when the two arm rods are subjected to external force in the same direction. Specifically, the external force applied to the arm lever includes deformation of the metal sheet, dropping of the device, and the like. After the Breaker1 arm lever and the Breaker2 arm lever are in a communication state, when any battery pack in the power supply has the condition that the current exceeds a threshold value, the corresponding Breaker arm lever of the battery pack can timely disconnect a passage, so that other devices in the power supply circuit are prevented from being burnt by the current exceeding the threshold value. As shown in fig. 6, the break 1 arm is in the on state, and the break 2 arm is in the off state. After the power supply circuit is impacted by the acting force in the first direction, the Breaker2 arm rod is disconnected, but the Breaker1 arm rod is kept on, and the power supply can form a loop with the load through the Breaker1, so that the load can normally work without power failure; similarly, after the power supply circuit is impacted by the acting force in the second direction, the Breaker1 arm rod is disconnected, the Breaker2 arm rod is kept on, and the power supply can form a loop with the load through the Breaker 2. Specifically, when the power circuit is impacted by external force, the directions of the external force applied to the circuit at the same time are the same, and the connection directions of the arms of the Breaker1 and the Breaker2 are opposite, so that under the influence of the external force, the Breaker1 and the Breaker2 are in a state that one of them is conducted and the other is disconnected.

In addition, for a specific description of the power circuit being in the off state, reference may be made to the description of the power circuit being in the off state in fig. 4, which is not repeated herein.

Alternatively, the power circuit shown in fig. 6 is only an example, and in addition, the power circuit may further include more groups of power sources and breekers, where at least two breekers are opposite in movable direction. Alternatively, the switch units and the control modules for controlling the switch units to be turned on or off can be respectively connected in parallel on one or more breakers, wherein the control module can be only one and used for simultaneously controlling all the switch units or a plurality of switch units.

In summary, after the power supply circuit and the related device with stable control provided by the embodiments of the present application are adopted, compared with a scenario that only a Breaker is adopted as a circuit protection module, the electronic device is ensured to be restarted without power failure due to impact. Meanwhile, compared with the scheme that only the PTC resistor is adopted as a circuit protection module, the scheme can reduce electric energy loss and increase endurance time.

The electronic device may be a portable terminal device with an iOS, android, microsoft or other operating system mounted, such as a cell phone, tablet, desktop, laptop, handheld, notebook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook, as well as a cellular phone, personal digital assistant (personal digital assistant, PDA), augmented reality (augmented reality, AR) device, virtual Reality (VR) device, artificial intelligence (artificial intelligence, AI) device, wearable device, vehicle-mounted device, smart home device and/or smart city device, etc.

Fig. 7 shows a schematic structural diagram of an electronic device 700.

The electronic device 700 may include: processor 710, external memory interface 720, internal memory 721, universal serial bus (universal serial bus, USB) interface 730, charge management module 740, power management module 741, battery 742, antenna 1, antenna 2, mobile communication module 750, wireless communication module 760, audio module 770, sensor module 780, keys 790, indicator 792, camera 793, and display 794, among others. The sensor module 780 may include a pressure sensor 780A, a gyroscope sensor 780B, an acceleration sensor 780C, and the like.

It is to be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device 700. In other embodiments of the present application, electronic device 700 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 710 may include one or more processing units such as, for example: the processor 710 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a memory, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller may be a neural hub and a command center of the electronic device 700, among others. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 710 for storing instructions and data. In some embodiments, the memory in processor 710 is a cache memory. The memory may hold instructions or data that has just been used or recycled by the processor 710. If the processor 710 needs to reuse the instruction or data, it may be called directly from the memory. Repeated accesses are avoided and the latency of the processor 710 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 710 may include one or more interfaces. The interfaces may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. In some embodiments, a GPIO interface may be used to connect processor 710 with camera 793, display 794, wireless communication module 760, audio module 770, sensor module 780, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, an MIPI interface, etc.

USB interface 730 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. USB interface 730 may be used to connect a charger to charge electronic device 700, or may be used to transfer data between electronic device 700 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other electronic devices, such as AR devices, etc.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present application is only illustrative, and does not limit the structure of the electronic device 700. In other embodiments of the present application, the electronic device 700 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The processor 710 is configured to control the power management module 741, the battery 742, and the acceleration to perform the method flow shown in fig. 2 and further to continuously supply power to a load such as the display 794.

The charge management module 740 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 740 may receive a charging input of a wired charger through the USB interface 730. In some wireless charging embodiments, the charge management module 740 may receive wireless charging input through a wireless charging coil of the electronic device 700. The charging management module 740 may also provide power to the electronic device through the power management module 741 while charging the battery 742.

The power management module 741 is configured to connect the battery 742, and the charge management module 740 and the processor 710. The power management module 741 receives input from the battery 742 and/or the charge management module 740 and provides power to the processor 710, the internal memory 721, the external memory, the display 794, the camera 793, the wireless communication module 760, and the like. The power management module 741 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 741 may also be disposed in the processor 710. In other embodiments, the power management module 741 and the charge management module 740 may be disposed in the same device.

In this embodiment of the present application, the circuit connection manner of the power management module 741 and the battery 742 is the connection manner of the power module and the protection module described in fig. 3-6, which is not described herein.

The wireless communication function of the electronic device 700 may be implemented by the antenna 1, the antenna 2, the mobile communication module 750, the wireless communication module 760, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 700 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 750 may provide a solution for wireless communication including 2G/3G/4G/5G, etc., applied to the electronic device 700. The mobile communication module 750 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 750 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 750 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 750 may be disposed in the processor 710. In some embodiments, at least some of the functional modules of the mobile communication module 750 may be disposed in the same device as at least some of the modules of the processor 710.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device or displays images or video through a display screen 794. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 750 or other functional modules, independent of the processor 710.

The wireless communication module 760 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., as applied to the electronic device 700. The wireless communication module 760 may be one or more devices that integrate at least one communication processing module. The wireless communication module 760 receives electromagnetic waves via the antenna 2, demodulates and filters the electromagnetic wave signals, and transmits the processed signals to the processor 710. The wireless communication module 760 may also receive signals to be transmitted from the processor 710, frequency modulate them, amplify them, and convert them to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 750 of electronic device 700 are coupled, and antenna 2 and wireless communication module 760 are coupled, such that electronic device 700 may communicate with a network and other devices through wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

The electronic device 700 implements display functions through a GPU, a display screen 794, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display 794 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 710 may include one or more GPUs that execute program instructions to generate or change display information.

The display 794 is used to display images, video, and the like. The display 794 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD). The display panel may also be manufactured using organic light-emitting diode (OLED), active-matrix organic light-emitting diode (AMOLED), flexible light-emitting diode (flex-emitting diode), mini, micro-OLED, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device 700 may include 1 or N displays 794, N being a positive integer greater than 1.

The electronic device 700 may implement shooting functions through an ISP, a camera 793, a video codec, a GPU, a display screen 794, an application processor, and the like.

The ISP is used to process the data fed back by the camera 793. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also optimize the noise, brightness and color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 793.

The camera 793 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, the electronic device 700 may include 1 or N cameras 793, N being a positive integer greater than 1.

The internal memory 721 may include one or more random access memories (random access memory, RAM) and one or more non-volatile memories (NVM).

The random access memory may include static random access memory (static random access memory, SRAM), dynamic random access memory (dynamic random access memory, DRAM), synchronous dynamic random access memory (synchronous dynamic random access memory, SDRAM), double data rate synchronous dynamic random access memory (double data rate synchronous dynamic random access memory, DDR SDRAM, e.g., fifth generation DDR SDRAM is commonly referred to as DDR5 SDRAM), etc.;

the nonvolatile memory may include a disk storage device, a flash memory (flash memory).

The FLASH memory may include NOR FLASH, NAND FLASH, 3D NAND FLASH, etc. divided according to an operation principle, may include single-level memory cells (SLC), multi-level memory cells (MLC), triple-level memory cells (TLC), quad-level memory cells (QLC), etc. divided according to a memory specification, may include universal FLASH memory (universal FLASH storage, UFS), embedded multimedia memory cards (embedded multi media card, eMMC), etc. divided according to a memory specification.

Random access memory may be read directly from and written to by processor 710, may be used to store executable programs (e.g., machine instructions) for an operating system or other on-the-fly programs, may also be used to store data for users and applications, and the like.

The nonvolatile memory may store executable programs, store data of users and applications, and the like, and may be loaded into the random access memory in advance for the processor 710 to directly read and write.

The external memory interface 720 may be used to connect external non-volatile memory to enable expansion of the memory capabilities of the electronic device 700. The external nonvolatile memory communicates with the processor 710 through an external memory interface 720 to implement data storage functions. For example, files such as music and video are stored in an external nonvolatile memory.

The electronic device 700 may implement audio functions through an audio module 770, an application processor, and the like. Such as music playing, recording, etc.

The audio module 770 is used to convert digital audio information to an analog audio signal output and also to convert an analog audio input to a digital audio signal. The audio module 770 may also be used to encode and decode audio signals. In some embodiments, the audio module 770 may be provided in the processor 710, or some of the functional modules of the audio module 770 may be provided in the processor 710.

The pressure sensor 780A is configured to sense a pressure signal and convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 780A may be provided on display 794. The pressure sensor 780A is of a wide variety, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. When a force is applied to the pressure sensor 780A, the capacitance between the electrodes changes. The electronic device 700 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 794, the electronic apparatus 700 detects the touch operation intensity according to the pressure sensor 780A. The electronic device 700 may also calculate the location of the touch based on the detection signal of the pressure sensor 780A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.

The gyro sensor 780B may be used to determine the motion pose of the electronic device 700. In some embodiments, the angular velocity of electronic device 700 about three axes (i.e., x, y, and z axes) may be determined by gyro sensor 780B. The gyro sensor 780B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 780B detects the shake angle of the electronic device 700, calculates the distance to be compensated by the lens module according to the angle, and makes the lens counteract the shake of the electronic device 700 through the reverse motion, so as to realize anti-shake. The gyro sensor 780B may also be used for navigation, somatosensory of game scenes.

The acceleration sensor 780C may detect the magnitude of acceleration of the electronic device 700 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the electronic device 700 is stationary. The electronic equipment gesture recognition method can also be used for recognizing the gesture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.

The keys 790 include a power key, a volume key, etc. Key 790 may be a mechanical key. Or may be a touch key. The electronic device 700 may receive key inputs, generate key signal inputs related to user settings and function control of the electronic device 700.

The indicator 792 may be an indicator light, may be used to indicate a state of charge, a change in charge, a message indicating a missed call, a notification, etc.

It should be understood that each step in the above method embodiments provided in the present application may be accomplished by an integrated logic circuit of hardware in a processor. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware processor execution.

The application also provides an electronic device, which may include: memory and a processor. Wherein the memory is operable to store a computer program; the processor may be operative to invoke a computer program in said memory to cause the electronic device to perform the method of any of the embodiments described above.

The present application also provides a chip system including at least one processor for implementing the functions involved in the method performed by the electronic device in any of the above embodiments.

In one possible design, the system on a chip further includes a memory to hold program instructions and data, the memory being located either within the processor or external to the processor.

The chip system may be formed of a chip or may include a chip and other discrete devices.

Alternatively, the processor in the system-on-chip may be one or more. The processor may be implemented in hardware or in software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general purpose processor, implemented by reading software code stored in a memory.

Alternatively, the memory in the system-on-chip may be one or more. The memory may be integrated with the processor or may be separate from the processor, and embodiments of the present application are not limited. For example, the memory may be a non-transitory processor, such as a ROM, which may be integrated on the same chip as the processor, or may be separately disposed on different chips, and the type of memory and the manner of disposing the memory and the processor in the embodiments of the present application are not specifically limited.

Illustratively, the system-on-chip may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

The present application also provides a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method performed by the electronic device in any of the embodiments described above.

The present application also provides a computer-readable storage medium storing a computer program (which may also be referred to as code, or instructions). The computer program, when executed, causes a computer to perform the method performed by the electronic device in any of the embodiments described above.

The embodiments of the present application may be arbitrarily combined to achieve different technical effects.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk), etc.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium includes: ROM or random access memory RAM, magnetic or optical disk, etc.

In summary, the foregoing description is only exemplary embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply circuit, the power supply circuit comprising: the switching device comprises a first power supply, a first circuit breaker, a switching device, a control module and a load module; the first circuit breaker comprises a movable part and a spring plate;

the first power supply is connected in series with the first circuit breaker and the load module, the first circuit breaker is connected with the switching device in parallel, the first circuit breaker is conducted, and the switching device is disconnected; the first circuit breaker conducting comprises: in case the current in the first circuit breaker does not exceed a first threshold value, the movable part is directly connected with the spring plate;

In the event that the power circuit is subjected to a first force, the first circuit breaker opens;

the control module is used for controlling the switching device to be conducted under the condition that the power supply circuit receives a second acting force smaller than or equal to the first acting force;

and the control module is also used for controlling the switching device to be disconnected under the condition that the first circuit breaker is recovered to be conducted or the conducting time length of the switching device reaches a first time length.

2. The circuit of claim 1, wherein the first force comprises a force greater than or equal to a first value and the second force comprises a force greater than or equal to a second value, the first value being greater than or equal to the second value.

3. The circuit of claim 1, wherein the condition of the power circuit being subjected to the second force comprises:

the acceleration of the power supply circuit is greater than or equal to a third value;

or, the plurality of accelerations of the power supply circuit in the second period of time are greater than or equal to the third value.

4. The circuit of claim 1, wherein the first circuit breaker further comprises a metal component;

The first breaker opening includes: under the condition that the current in the first circuit breaker exceeds the first threshold value, the metal part is deformed by heat and supports the movable part to disconnect from the direct connection with the elastic sheet;

the first breaker opening further comprises: and under the condition that the power supply circuit receives the first acting force, the movable part is disconnected from the direct connection with the elastic sheet.

5. The circuit of claim 4, wherein the power circuit further comprises a positive temperature coefficient effect PTC resistor, the metal component being connected to the dome through the PTC resistor;

the first circuit breaker conducting further comprises: in the event that the current in the first circuit breaker exceeds the first threshold, the metal part is deformed by heat, supporting the movable part to disconnect the direct connection with the dome, such that the movable part is indirectly connected to the dome through the metal part, the PTC resistor.

6. The circuit of claim 1, wherein the switching device comprises a P-channel metal oxide semiconductor PMOS, a gate of the PMOS is connected to the control module, and a source of the PMOS is connected to the positive pole of the first power supply and one end of the first circuit breaker; the drain electrode of the PMOS is connected with the other end of the first circuit breaker;

The control module for controlling the switching device to be conducted specifically comprises the following steps: the control module controls the voltage difference between the grid electrode and the source electrode of the PMOS to be lower than a second threshold value, so that the PMOS is conducted.

7. The circuit of claim 1, wherein the control module comprises an N-channel metal oxide semiconductor NMOS and a controller;

the drain electrode of the NMOS is connected with the switching device; the drain electrode of the NMOS is also connected with the anode of the first power supply through a resistor; the source electrode of the NMOS is grounded; the grid electrode of the NMOS is connected with a control signal port of the controller;

the control module is used for controlling the switching device to be conducted, and specifically comprises the following steps:

and the controller sends a high-level signal to the grid electrode of the NMOS through the control signal port, so that the voltage difference between the grid electrode and the source electrode of the NMOS is larger than a third threshold value.

8. The circuit of claim 1, wherein the power supply circuit further comprises: a second power supply and a second circuit breaker;

the first power supply and the first circuit breaker are connected in series in a first circuit, the second power supply and the second circuit breaker are connected in series in a second circuit, and the first circuit is connected in parallel with the second circuit;

The first power supply is used for supplying power to the load module through the first circuit breaker, and the second power supply is used for supplying power to the load module through the second circuit breaker;

under the condition that the power supply circuit receives the acting force in the first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected;

under the condition that the power supply circuit receives a force in a second direction, the first circuit breaker is opened, and the second circuit breaker is closed; the first direction is opposite to the second direction.

9. The circuit of claim 8, wherein the circuit further comprises a logic circuit,

a first movable part of the first circuit breaker having the first direction and the second direction, a second movable part of the second circuit breaker having the first direction and the second direction;

when the first movable part and the second movable part move towards the first direction, the first circuit breaker is conducted, and the second circuit breaker is disconnected;

when the first movable member and the second movable member are movable in the second direction, the first breaker is opened and the second breaker is closed.

10. A method of controlling the stability of a power supply circuit, the method being applied to a power supply circuit comprising: the switching device comprises a first power supply, a first circuit breaker, a switching device, a control module and a load module; the first circuit breaker comprises a movable part and a spring plate; the method comprises the following steps:

the control module controls the switching device to be conducted under the condition that the power supply circuit receives a second acting force smaller than or equal to the first acting force;

11. The method of claim 10, wherein the first force comprises a force greater than or equal to a first value and the second force comprises a force greater than or equal to a second value, the first value being greater than or equal to the second value.

12. The method of claim 10, wherein the condition of the power circuit being subjected to the second force comprises:

13. The method of claim 10, wherein the first circuit breaker further comprises a metal component;

the first breaker opening further comprises: and under the condition that the power supply circuit receives a first acting force, the movable part is disconnected from the direct connection with the elastic sheet.

14. The method of claim 13, wherein the power circuit further comprises a PTC resistor with positive temperature coefficient effect, the metal component being connected to the dome via the PTC resistor;

The first circuit breaker conducting further comprises: under the condition that the current in the first circuit breaker exceeds the first threshold value, the metal part is deformed by heat and supports the movable part to disconnect the direct connection with the elastic sheet, so that the movable part is indirectly connected with the elastic sheet through the metal part and the PTC resistor.

15. The method of claim 10, wherein the switching device comprises a PMOS, a gate of the PMOS being connected to the control module, a source of the PMOS being connected to the positive pole of the first power supply and one end of the first circuit breaker; the drain electrode of the PMOS is connected with the other end of the first circuit breaker;

16. The method of claim 10, wherein the control module comprises an N-channel metal oxide semiconductor, NMOS, and a controller;

The control module controls the switching device to be conducted, and specifically comprises the following steps:

17. The method of claim 10, wherein the power circuit further comprises: a second power supply, a second circuit breaker;

18. The method of claim 17, wherein the step of determining the position of the probe is performed,

19. A chip comprising a power supply circuit, the power supply circuit being the circuit of any one of claims 1-9.

20. A computer readable storage medium comprising instructions which, when run on a power supply circuit, cause the power supply circuit to perform the method of any one of claims 10-18.

21. An electronic device comprising one or more processors, one or more memories, and a power circuit; wherein the one or more memories are coupled to the one or more processors, the power circuit being the circuit of any of claims 1-9.