CN115793546A - Low-power consumption MCU chip standby control circuit - Google Patents
Low-power consumption MCU chip standby control circuit Download PDFInfo
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- CN115793546A CN115793546A CN202211668712.1A CN202211668712A CN115793546A CN 115793546 A CN115793546 A CN 115793546A CN 202211668712 A CN202211668712 A CN 202211668712A CN 115793546 A CN115793546 A CN 115793546A
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Abstract
The invention discloses a low-power consumption MCU chip standby control circuit, which relates to the technical field of standby control and comprises an intelligent control module, a standby control module and a power supply module, wherein the intelligent control module is used for receiving signals through an MCU circuit and controlling the module to work; the driving module is used for driving the electric energy adjusting module to adjust the electric energy; the output module is used for providing electric energy for the load circuit; the first load detection module and the second load detection module are respectively used for detecting the states of a load circuit during load operation and before the load operation; the standby control module is used for standby control; an energy storage control module; for providing standby power for the MCU circuit. The low-power consumption MCU chip standby control circuit respectively detects the connection state of the load circuit and the circuit when the output module works in normal load and before the output module works in normal load, judges the standby work of the control circuit through the load state by the MCU circuit, controls the working state of the circuit, and provides working electric energy required by standby for the MCU circuit in the standby process.
Description
Technical Field
The invention relates to the technical field of standby control, in particular to a low-power consumption MCU chip standby control circuit.
Background
Along with the development of electronic technology, various intelligent electronic terminal products come into operation, in order to reduce the loss of the intelligent electronic terminal products to electric energy when the intelligent electronic terminal products do not work, the standby control circuit adopted realizes the standby control of the intelligent electronic terminal products, the existing standby mode is that a power supply directly supplies power to an MCU chip, the MCU chip enters a sleep state through a standby signal when the standby is carried out, the power consumption of the circuit is reduced, but the standby starting control needs to be artificially carried out, so that the circuit still keeps normal electric energy supply when the circuit normally works but the load is disconnected, the loss is still high, the intelligence degree is low, and therefore the improvement is needed.
Disclosure of Invention
The embodiment of the invention provides a low-power consumption MCU chip standby control circuit to solve the problems in the background technology.
According to a first aspect of the embodiments of the present invention, there is provided a low power consumption MCU chip standby control circuit, including: the intelligent control system comprises a power supply input module, an intelligent control module, an electric energy adjusting module, an output module, a first load detection module, a second load detection module, a driving module and a standby control module;
the power input module is used for filtering and rectifying the input alternating current and outputting direct current;
the intelligent control module is used for receiving signals fed back by the first load detection module and the second load detection module through the MCU circuit, outputting a standby signal to control the work of the standby control module, outputting a power supply switching signal in a standby state and outputting a pulse signal;
the driving module is used for providing the driving capability of the pulse signal through a driving circuit and outputting the driving capability;
the electric energy adjusting module is connected with the power input module and the driving module and is used for controlling electric energy transmission and electric energy interception; the power input module is used for receiving the pulse signal output by the driving module and adjusting the electric energy output by the power input module;
the output module is connected with the electric energy adjusting module and used for carrying out DC-DC adjustment and rectification filtering processing on the electric energy adjusted by the electric energy adjusting module through an electric energy processing circuit and providing electric energy for a load circuit;
the first load detection module is connected with the output module and the intelligent control module and is used for detecting the connection state of the load circuit and the output module when the output module works in a normal load state and outputting a first state signal;
the second load detection module is connected with the power input module, the output module and the intelligent control module, and is used for detecting the connection state of the load circuit and the output module before the output module works in a normal loading state and outputting a second state signal;
and the standby control module is connected with the electric energy adjusting module and the intelligent control module and used for receiving the standby signal and controlling the standby work of the electric energy adjusting module.
According to another aspect of the embodiment of the invention, the low-power consumption MCU chip standby control circuit further comprises an energy storage control module;
the energy storage control module is used for receiving the electric energy output by the electric energy adjusting module, storing energy and working, receiving the power supply switching signal and providing standby electric energy for the intelligent control module through an energy storage discharging circuit;
the energy storage control module is connected with the electric energy adjusting module and the intelligent control module.
Compared with the prior art, the invention has the beneficial effects that: the low-power-consumption MCU chip standby control circuit of the invention is characterized in that the first load detection module and the second load detection module respectively detect the connection state of the load circuit and the output module when the output module works normally under load and before the output module works normally under load, the MCU circuit in the intelligent control module controls the standby control of the standby control module through the judgment of the load state, the requirement for human intervention is reduced, the intelligence of the circuit is improved, the working state of the whole circuit is controlled, the circuit realizes partial power-off zero-loss standby, and the energy storage control module provides the MCU circuit with the working electric energy required by standby in the standby process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a low-power consumption MCU chip standby control circuit according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a low power consumption MCU chip standby control circuit according to an embodiment of the present invention.
Fig. 3 is a connection circuit diagram of an energy storage control module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In embodiment 1, referring to fig. 1, a low power consumption MCU chip standby control circuit includes: the system comprises a power supply input module 1, an intelligent control module 2, an electric energy adjusting module 3, an output module 4, a first load detection module 5, a second load detection module 6, a driving module 7 and a standby control module 8;
specifically, the power input module 1 is configured to filter and rectify an input alternating current and output a direct current;
the intelligent control module 2 is used for receiving signals fed back by the first load detection module 5 and the second load detection module 6 through an MCU circuit, outputting a standby signal to control the work of the standby control module 8, outputting a power switching signal in a standby state and outputting a pulse signal;
the driving module 7 is used for providing the driving capability of the pulse signal through a driving circuit and outputting the driving capability;
the electric energy adjusting module 3 is connected with the power input module 1 and the driving module 7 and is used for controlling electric energy transmission and electric energy interception; the power supply input module is used for receiving the pulse signal output by the driving module 7 and adjusting the electric energy output by the power supply input module 1;
the output module 4 is connected with the electric energy adjusting module 3 and is used for performing DC-DC adjustment and rectification filtering processing on the electric energy adjusted by the electric energy adjusting module 3 through an electric energy processing circuit and providing electric energy for a load circuit;
the first load detection module 5 is connected with the output module 4 and the intelligent control module 2, and is used for detecting the connection state of a load circuit and the output module 4 when the output module 4 works in a normal load state and outputting a first state signal;
the second load detection module 6 is connected with the power input module 1, the output module 4 and the intelligent control module 2, and is used for detecting the connection state of the load circuit and the output module 4 before the output module 4 works in a normal load state and outputting a second state signal;
and the standby control module 8 is connected with the electric energy adjusting module 3 and the intelligent control module 2 and is used for receiving the standby signal and controlling the standby work of the electric energy adjusting module 3.
Further, the low-power consumption MCU chip standby control circuit further comprises an energy storage control module 9;
specifically, the energy storage control module 9 is configured to receive the electric energy output by the electric energy adjustment module 3, store the electric energy for work, and receive the power switching signal and provide standby electric energy for the intelligent control module 2 through an energy storage discharge circuit;
the energy storage control module 9 is connected with the electric energy adjusting module 3 and the intelligent control module 2.
In a specific embodiment, the power input module 1 may employ an EMI filter circuit and a rectifier circuit to filter and rectify an input ac power and output a dc power; the intelligent control module 2 can adopt, but is not limited to a microcontroller chip such as a single chip microcomputer and a DSP, integrates a plurality of components such as an arithmetic unit, a controller, a memory, an input/output device and the like, and realizes functions such as signal processing, data storage, module control and the like; the electric energy adjusting module 3 can adopt a switching circuit to adjust electric energy and perform electric energy transmission control and electric energy interception control; the output module 4 can adopt an electric energy processing circuit composed of a rectifier filter circuit to carry out rectifier filter processing on the input electric energy and provide required electric energy for a load circuit; the first load detection module 5 can adopt a triode detection circuit and an isolation transmission circuit, the triode detection circuit detects the connection state of the load circuit and the output module 4 when the output module 4 works normally with load, and the connection state is transmitted to the intelligent control module 2 through the isolation transmission circuit; the second load detection module 6 may detect a connection state between the load circuit and the output module 4 before the output module 4 operates in a normal on-load mode by using an electric energy state detection circuit; the driving module 7 may adopt a field effect transistor driving circuit to improve the driving capability of the pulse signal, which is not described herein; the standby control module 8 can adopt a power tube circuit to perform standby control; the energy storage control module 9 may adopt an energy storage circuit and a discharge circuit, and the discharge circuit controls the energy storage circuit to provide standby electric energy for the intelligent control module 2.
specifically, the first end of power port connects the one end of first electric capacity C1 and first wave filter LF 1's first end, and the second end of first electric capacity C1's the other end and the second end of first wave filter LF1 are connected to the second end of power port, and the one end of second electric capacity C2 and the first end of first rectifier T1 are connected to first wave filter LF 1's third end, and the other end of second electric capacity C2 and the second end of first rectifier T1 are connected to first wave filter LF 1's fourth end, the third end and the fourth end of first rectifier T1 with electric energy regulation module 3 connects.
In a specific embodiment, the first capacitor C1, the first filter LF1, and the second capacitor C2 form an EMI filter circuit.
Further, the electric energy adjusting module 3 includes a first resistor R1, a first power tube Q1, a third capacitor C3, and a first transformer W1;
specifically, one end of the first resistor R1 is connected to the fourth end of the first rectifier T1, the other end of the first resistor R1 is connected to the source of the first power tube Q1, the drain of the first power tube Q1 is connected to one end of the third capacitor C3 and the second end of the first transformer W1, the first end of the first transformer W1 is connected to the other end of the third capacitor C3 and the third end of the first rectifier T1, the third end and the fourth end of the first transformer W1 are connected to the output module 4, the fifth end and the sixth end of the first transformer W1 are connected to the energy storage control module 9, and the gate of the first power tube Q1 is connected to the driving module 7.
In a specific embodiment, the first resistor R1 may be a current sampling resistor, which provides a sampling current for the intelligent control module 2, and details are not described herein; the first power tube Q1 may be an N-channel enhancement MOS tube, and the output power of the first transformer W1 is adjusted.
Further, the driving module 7 includes an eighth resistor R8, a first power VCC1, a ninth resistor R9, a fifth capacitor C5, a tenth resistor R10, and a driver U2; the intelligent control module 2 comprises a first controller U1;
specifically, the one end of the eighth resistor R8 is connected the grid of the first power tube Q1, the ninth end of the driver U2 is connected to the other end of the eighth resistor R8, the tenth end of the driver U2 is connected to the first power VCC1, the eighth end of the driver U2 is connected to the ground through the ninth resistor R9, the sixth end of the driver U2 is connected to one end of the fifth capacitor C5, the ground, the fourth end and the seventh end of the driver U2 through the tenth resistor R10, the fifth end of the driver U2 is connected to the other end of the fifth capacitor C5, and the third end of the driver U2 is connected to the second IO end of the first controller U1.
In a specific embodiment, the driver U2 may be an MC33060 chip; the first controller U1 may be selected from, but is not limited to, an ST89C52 single chip microcomputer.
Further, the standby control module 8 includes a second power tube Q2;
specifically, the drain of the second power tube Q2 is connected to the gate of the first power tube Q1, the source of the second power tube Q2 is grounded, and the gate of the second power tube Q2 is connected to the fourth IO end of the first controller U1.
In an embodiment, the second power transistor Q2 may be an N-channel enhancement MOS transistor for controlling the state of the first power transistor Q1.
It should be noted that the standby signal output by the fourth IO terminal of the first controller U1 may also be sent by manual control, which is not described herein again.
Further, the output module 4 includes a first voltage regulator J1, a first diode D1, a fourth capacitor C4, and a load circuit;
specifically, the first end and the second end of the first voltage stabilizer J1 are connected to the third end and the fourth end of the first transformer W1, the third end of the first voltage stabilizer J1 is connected to the anode of the first diode D1, the fourth end of the first voltage stabilizer J1 is connected to one end of the fourth capacitor C4, the cathode of the first diode D1 is connected to the other end of the fourth capacitor C4 and the first end of the load circuit, and the second end of the load circuit is grounded.
In a specific embodiment, the first regulator J1 is a DC-DC regulator, and the specific type is not limited; the first diode D1 and the fourth capacitor C4 are used for rectification and filtering; the load circuit is an electronic device to be controlled, and is not described herein.
Further, the first load detection module 5 includes a second resistor R2, a first voltage regulator VD1, a first switch tube VT1, a third resistor R3, a fourth resistor R4, a third switch tube VT3, a sixth resistor R6, a seventh resistor R7, and a first optocoupler U3;
specifically, one end of the second resistor R2 is connected to an emitter of the first switch tube VT1, an emitter of the third switch tube VT3, one end of the seventh resistor R7 and the fourth end of the first regulator J1, the other end of the second resistor R2 is connected to the second end of the load circuit and the cathode of the first regulator tube VD1, the anode of the first regulator tube VD1 is connected to the base of the first switch tube VT1 and is connected to one end of the fourth resistor R4, one end of the sixth resistor R6, the third end of the first optocoupler U3 and the first end of the load circuit through the third resistor R3, the collector of the first switch tube VT1 is connected to the base of the third switch tube VT3 and the other end of the fourth resistor R4, the collector of the third switch tube VT3 is connected to the first end of the first optocoupler U3 and the other end of the sixth resistor R6, the second end of the first optocoupler U3 is connected to the other end of the seventh resistor R7, and the fourth end of the first optocoupler U3 is connected to the first IO end of the first controller U1.
In a specific embodiment, the second resistor R2 is used for sampling the electric energy input to the load circuit; the first switching tube VT1 and the third switching tube VT3 may both be NPN type triodes, and are configured to amplify a signal sampled by the second resistor R2; the first optical coupler U3 can be a PC817 photoelectric coupler.
Further, the second load detection module 6 includes a sixth capacitor C6, a second transformer W2, a second rectifier T2, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fourth switching tube VT4, and a second power source VCC2;
specifically, one end of the sixth capacitor C6 and the second end of the second transformer W2 are connected to the first end and the second end of the power port, the other end of the sixth capacitor C6 is connected to the first end of the second transformer W2, the third end and the fourth end of the second transformer W2 are connected to the first end and the second end of the second rectifier T2, the third end of the second rectifier T2 is connected to one end of the eleventh resistor R11 and the first end of the load circuit, the other end of the eleventh resistor R11 is connected to one end of the twelfth resistor R12 and the base of the fourth switch tube VT4 through the thirteenth resistor R13, the collector of the fourth switch tube VT4 is connected to the second power source VCC2, the emitter of the fourth switch tube VT4 is connected to the fifth IO end of the first controller U1 and is grounded through the fourteenth resistor R14, and the fourth end of the second rectifier T2 is connected to the other end of the twelfth resistor R12 and the second end of the load circuit.
In a specific embodiment, the sixth capacitor C6, the second transformer W2 and the second rectifier T2 step down and rectify the input electric energy; the eleventh resistor R11, the twelfth resistor R12 and the thirteenth resistor R13 form a resistor voltage dividing circuit, and are used for detecting the magnitude of the electric energy transmitted by the second rectifier T2 when the load circuit is switched on and switched off; the fourth switching tube VT4 may be an NPN transistor, and is turned on when a load circuit is connected, and is turned off when not connected.
Further, the energy storage control module 9 includes an energy storage device, a fifth resistor R5, a third power tube Q3, a second switching tube VT2, and a second voltage regulator J2;
specifically, the first end of the energy storage device, one end of a fifth resistor R5, and the source of the third power tube Q3 are connected to the fifth end of the first transformer W1, the other end of the fifth resistor R5 is connected to the gate of the third power tube Q3 and the collector of the second switching tube VT2, the emitter of the second switching tube VT2 is grounded, the base of the second switching tube VT2 is connected to the third IO end of the first controller U1, the drain of the third power tube Q3 is connected to the input end of the second voltage regulator J2, and the output end of the second voltage regulator J2 is connected to the power supply end of the first controller U1.
In a specific embodiment, the third power transistor Q3 may be a P-channel enhancement MOS transistor and is controlled by the second switch transistor VT 2; the second switching tube VT2 can be an NPN-type triode and is controlled by the first controller U1; the energy storage device can be selected from, but not limited to, a lithium battery, a super capacitor and the like.
The invention relates to a low-power consumption MCU chip standby control circuit, which inputs alternating current from a power port, a first capacitor C1, a first filter LF1, a second capacitor C2 and a first rectifier T1 are used for filtering and rectifying, the filtering and rectifying are carried out by a first transformer W1, a first voltage stabilizer J1, a first diode D1 and a fourth capacitor C4 are used for carrying out DC-DC voltage stabilization regulation and rectifying and filtering on the electric energy output by the first transformer W1 so as to provide electric energy for a load circuit, simultaneously, a second IO end output pulse signal of a first controller U1 is transmitted by a driver U2 and controls the conduction degree of a first power tube Q1 so as to regulate the transmission electric energy of the first transformer W1, if the load circuit is removed in normal load operation, the voltage drop of a second resistor R2 is reduced, a third switching tube VT3 is cut off, a first optocoupler U3 is conducted, so that the first controller U1 knows that the load circuit is removed, the first controller U1 controls the conduction of the second power tube Q2, the electric energy transmitted by the first transformer W1 is cut off and the output of a pulse signal is stopped, the circuit enters standby control, meanwhile, the first controller U1 controls the conduction of the third power tube Q3, so that the energy storage device provides standby electric energy for the first controller U1, if a load circuit is connected again at the moment, because no electric energy is input, the low voltage drop of the second resistor R2 is kept, the first load detection module 5 cannot work, when the first power tube Q1 does not work at the moment, the voltage drop and rectification processing are carried out on the input alternating current through the second transformer W2 and the second rectifier T2, the output electric energy detection is carried out by the eleventh resistor R11 and the twelfth resistor R12, under the condition of the connection of the load circuit, the electric energy of the voltage division of the eleventh resistor R11 and the twelfth resistor R12 is larger, so that the fourth switch tube VT4 is connected, the first controller U1 knows that the load circuit is connected, the self-starting control is carried out again to supply the electric energy to the load circuit again.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A low-power consumption MCU chip standby control circuit is characterized in that,
this low-power consumption MCU chip standby control circuit includes: the intelligent control system comprises a power supply input module, an intelligent control module, an electric energy adjusting module, an output module, a first load detection module, a second load detection module, a driving module and a standby control module;
the power input module is used for filtering and rectifying the input alternating current and outputting direct current;
the intelligent control module is used for receiving signals fed back by the first load detection module and the second load detection module through the MCU circuit, outputting a standby signal to control the work of the standby control module, outputting a power supply switching signal in a standby state and outputting a pulse signal;
the driving module is used for providing the driving capability of the pulse signal through a driving circuit and outputting the driving capability;
the electric energy adjusting module is connected with the power input module and the driving module and is used for controlling electric energy transmission and electric energy interception; the power input module is used for receiving the pulse signal output by the driving module and adjusting the electric energy output by the power input module;
the output module is connected with the electric energy adjusting module and used for carrying out DC-DC adjustment and rectification filtering processing on the electric energy adjusted by the electric energy adjusting module through an electric energy processing circuit and providing electric energy for a load circuit;
the first load detection module is connected with the output module and the intelligent control module and is used for detecting the connection state of the load circuit and the output module when the output module works in a normal load state and outputting a first state signal;
the second load detection module is connected with the power input module, the output module and the intelligent control module, and is used for detecting the connection state of the load circuit and the output module before the output module works in a normal loading state and outputting a second state signal;
and the standby control module is connected with the electric energy adjusting module and the intelligent control module and used for receiving the standby signal and controlling the standby work of the electric energy adjusting module.
2. The MCU chip standby control circuit with low power consumption of claim 1, wherein the MCU chip standby control circuit with low power consumption further comprises an energy storage control module;
the energy storage control module is used for receiving the electric energy output by the electric energy adjusting module, storing energy and working, receiving the power supply switching signal and providing standby electric energy for the intelligent control module through the energy storage discharging circuit;
the energy storage control module is connected with the electric energy adjusting module and the intelligent control module.
3. The MCU chip standby control circuit with low power consumption of claim 2, wherein the power input module comprises a power port, a first capacitor, a first filter, a second capacitor, a first rectifier;
the first end of the power port is connected with one end of the first capacitor and the first end of the first filter, the second end of the power port is connected with the other end of the first capacitor and the second end of the first filter, the third end of the first filter is connected with one end of the second capacitor and the first end of the first rectifier, the fourth end of the first filter is connected with the other end of the second capacitor and the second end of the first rectifier, and the third end and the fourth end of the first rectifier are connected with the electric energy adjusting module.
4. The low-power consumption MCU chip standby control circuit of claim 3, wherein the electric energy regulating module comprises a first resistor, a first power tube, a third capacitor and a first transformer;
one end of the first resistor is connected with the fourth end of the first rectifier, the other end of the first resistor is connected with the source electrode of the first power tube, the drain electrode of the first power tube is connected with one end of the third capacitor and the second end of the first transformer, the first end of the first transformer is connected with the other end of the third capacitor and the third end of the first rectifier, the third end and the fourth end of the first transformer are connected with the output module, the fifth end and the sixth end of the first transformer are connected with the energy storage control module, and the grid electrode of the first power tube is connected with the driving module.
5. The MCU chip standby control circuit with low power consumption of claim 4, wherein the driving module comprises an eighth resistor, a first power supply, a ninth resistor, a fifth capacitor, a tenth resistor and a driver; the intelligent control module comprises a first controller;
one end of the eighth resistor is connected with the grid electrode of the first power tube, the other end of the eighth resistor is connected with the ninth end of the driver, the tenth end of the driver is connected with the first power supply, the eighth end of the driver is connected with the ground end through the ninth resistor, the sixth end of the driver is connected with one end of the fifth capacitor, the ground end, the fourth end and the seventh end of the driver through the tenth resistor, the other end of the fifth capacitor is connected with the fifth end of the driver, and the third end of the driver is connected with the second IO end of the first controller.
6. The MCU chip standby control circuit with low power consumption of claim 5, wherein the standby control module comprises a second power tube;
the drain electrode of the second power tube is connected with the grid electrode of the first power tube, the source electrode of the second power tube is grounded, and the grid electrode of the second power tube is connected with the fourth IO end of the first controller.
7. The MCU chip standby control circuit with low power consumption of claim 5, wherein the output module comprises a first voltage regulator, a first diode, a fourth capacitor, a load circuit;
the first end and the second end of the first voltage stabilizer are respectively connected with the third end and the fourth end of the first transformer, the third end of the first voltage stabilizer is connected with the anode of the first diode, the fourth end of the first voltage stabilizer is connected with one end of the fourth capacitor, the cathode of the first diode is connected with the other end of the fourth capacitor and the first end of the load circuit, and the second end of the load circuit is grounded.
8. The low-power consumption MCU chip standby control circuit of claim 7, wherein the first load detection module comprises a second resistor, a first voltage regulator tube, a first switch tube, a third resistor, a fourth resistor, a third switch tube, a sixth resistor, a seventh resistor, and a first optocoupler;
one end of the second resistor is connected with an emitting electrode of the first switch tube, an emitting electrode of the third switch tube, one end of the seventh resistor and the fourth end of the first voltage stabilizer, the other end of the second resistor is connected with a second end of the load circuit and a cathode of the first voltage stabilizing tube, an anode of the first voltage stabilizing tube is connected with a base electrode of the first switch tube and is connected with one end of the fourth resistor, one end of the sixth resistor, a third end of the first optocoupler and the first end of the load circuit through the third resistor, a collector electrode of the first switch tube is connected with a base electrode of the third switch tube and the other end of the fourth resistor, a collector electrode of the third switch tube is connected with the first end of the first optocoupler and the other end of the sixth resistor, a second end of the first optocoupler is connected with the other end of the seventh resistor, and the fourth end of the first optocoupler is connected with the first IO end of the first controller.
9. The MCU chip standby control circuit with low power consumption of claim 7, wherein the second load detection module comprises a sixth capacitor, a second transformer, a second rectifier, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fourth switching tube and a second power supply;
one end of the sixth capacitor and the second end of the second transformer are respectively connected with the first end and the second end of the power port, the other end of the sixth capacitor is connected with the first end of the second transformer, the third end and the fourth end of the second transformer are respectively connected with the first end and the second end of the second rectifier, the third end of the second rectifier is connected with one end of the eleventh resistor and the first end of the load circuit, the other end of the eleventh resistor is connected with one end of the twelfth resistor and is connected with the base electrode of the fourth switch tube through the thirteenth resistor, the collector electrode of the fourth switch tube is connected with the second power supply, the emitter electrode of the fourth switch tube is connected with the fifth IO end of the first controller and is grounded through the fourteenth resistor, and the fourth end of the second rectifier is connected with the other end of the twelfth resistor and the second end of the load circuit.
10. The MCU chip standby control circuit with low power consumption of claim 5, wherein the energy storage control module comprises an energy storage device, a fifth resistor, a third power tube, a second switching tube and a second voltage stabilizer;
the first end of the energy storage device, one end of the fifth resistor and the source electrode of the third power tube are connected with the fifth end of the first transformer, the other end of the fifth resistor is connected with the grid electrode of the third power tube and the collector electrode of the second switching tube, the emitter electrode of the second switching tube is grounded, the base electrode of the second switching tube is connected with the third IO end of the first controller, the drain electrode of the third power tube is connected with the input end of the second voltage stabilizer, and the output end of the second voltage stabilizer is connected with the power supply end of the first controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211668712.1A CN115793546A (en) | 2022-12-24 | 2022-12-24 | Low-power consumption MCU chip standby control circuit |
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| CN202211668712.1A CN115793546A (en) | 2022-12-24 | 2022-12-24 | Low-power consumption MCU chip standby control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277525A (en) * | 2023-09-26 | 2023-12-22 | 吉林省艾特网络传媒有限公司 | Intelligent power control system for charging pile |
| CN117498708A (en) * | 2023-12-29 | 2024-02-02 | 深圳市七彩虹禹贡科技发展有限公司 | Power conversion regulating circuit for mainboard |
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2022
- 2022-12-24 CN CN202211668712.1A patent/CN115793546A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277525A (en) * | 2023-09-26 | 2023-12-22 | 吉林省艾特网络传媒有限公司 | Intelligent power control system for charging pile |
| CN117277525B (en) * | 2023-09-26 | 2024-01-16 | 吉林省艾特网络传媒有限公司 | Intelligent power control system for charging pile |
| CN117498708A (en) * | 2023-12-29 | 2024-02-02 | 深圳市七彩虹禹贡科技发展有限公司 | Power conversion regulating circuit for mainboard |
| CN117498708B (en) * | 2023-12-29 | 2024-03-19 | 深圳市七彩虹禹贡科技发展有限公司 | Power conversion regulating circuit for mainboard |
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