CN109358693B - Thermal battery activation power supply and far-end line voltage drop compensation device thereof - Google Patents
Thermal battery activation power supply and far-end line voltage drop compensation device thereof Download PDFInfo
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- CN109358693B CN109358693B CN201811286724.1A CN201811286724A CN109358693B CN 109358693 B CN109358693 B CN 109358693B CN 201811286724 A CN201811286724 A CN 201811286724A CN 109358693 B CN109358693 B CN 109358693B
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- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
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Abstract
The invention relates to a thermal battery activation power supply and a remote line voltage drop compensation device thereof, belongs to the technical field of power supply product line voltage drop compensation, and solves the problem of temporary power failure of other electric equipment caused by the existence of a thermal battery activation unit. The remote line drop compensation device comprises: the far-end voltage sampling circuit is used for collecting the far-end voltage of the thermal battery activation power supply; the reference source circuit is used for generating a voltage reference signal; the reference ring PI circuit is used for adjusting the far-end voltage according to the voltage reference signal; the reference amplitude limiting circuit is used for carrying out amplitude limiting on the output voltage of the reference ring PI circuit; the local voltage sampling circuit is used for collecting the local voltage of the thermal battery activation power supply; and the voltage after amplitude limiting and the local voltage are respectively input into a reference input end and a voltage input end of a voltage loop PI circuit in the thermal battery activation power supply. The device guarantees that the system is stable through cooperation, the clamp system between the circuit, restraines other consumer power failure condition at the thermal battery commentaries on classics electricity in-process.
Description
Technical Field
The invention relates to the technical field of power supply product line voltage drop compensation, in particular to a thermal battery activation power supply and a far-end line voltage drop compensation device thereof.
Background
In a power supply system, in consideration of a line voltage drop of a power supply cable, fluctuation of a load terminal voltage is caused when a load current changes, which is particularly remarkable in a case of a large current output.
For some sensitive electric equipment, the fluctuation of the input voltage is not allowed, and when the electric equipment has a thermal battery activation condition, the application of a typical remote electric equipment line voltage drop compensation device can cause temporary power failure of other electric equipment, and the condition is often not allowed.
Disclosure of Invention
In view of the above analysis, the present invention is directed to a thermal battery activation power supply and a remote line voltage drop compensation device thereof, so as to solve the problem of temporary power failure of other electric devices due to the presence of a thermal battery activation unit.
The purpose of the invention is mainly realized by the following technical scheme:
in one embodiment of the present invention, there is provided a remote line drop compensation device for a thermal battery activation power supply, comprising:
the far-end voltage sampling circuit is used for collecting the far-end voltage of the thermal battery activation power supply;
a reference source circuit for generating a voltage reference signal;
the reference ring PI circuit is used for adjusting the far-end voltage according to the voltage reference signal;
the reference amplitude limiting circuit is used for carrying out amplitude limiting on the output voltage of the reference ring PI circuit;
the local voltage sampling circuit is used for collecting the local voltage of the thermal battery activation power supply;
and the voltage after amplitude limiting and the local voltage are respectively input to a reference input end and a voltage input end of a voltage loop PI circuit in the thermal battery activation power supply.
The invention has the following beneficial effects: in the device, a sampling signal of the far-end voltage is sent to the reference ring PI circuit, and then the reference of the voltage ring is adjusted and the amplitude limiting function is completed through the reference amplitude limiting circuit, so that the aim of limiting the minimum value of the local output voltage of the power supply is fulfilled. Through mutual cooperation and mutual clamping between the circuits, the power supply end is still in a working state after the thermal battery activation unit works, and other equipment cannot be powered off due to switching of the switch.
The system stability can be effectively ensured.
On the basis of the scheme, the invention is further improved as follows:
further, the far-end voltage sampling circuit is configured to sample the far-end voltage according to a certain proportion, so that the sampled far-end voltage matches a voltage range processed by the far-end line voltage drop compensation device.
The beneficial effect of adopting the further scheme is that: the far-end voltage is sampled according to a certain proportion, so that the sampled far-end voltage is matched with the voltage range processed by the far-end line voltage drop compensation device, the accuracy of a processing result is effectively guaranteed, meanwhile, the service life of the device can be prolonged, and the influence caused by device damage is reduced.
Further, the local voltage sampling circuit is configured to sample the local voltage according to a certain proportion, so that the sampled local voltage matches a voltage range processed by the far-end line voltage drop compensation device.
The beneficial effect of adopting the further scheme is that: the local voltage is sampled according to a certain proportion, so that the sampled local voltage is matched with the voltage range processed by the far-end line voltage drop compensation device, the accuracy of a processing result is effectively guaranteed, meanwhile, the service life of the device can be prolonged, and the influence caused by device damage is reduced.
Further, the voltage of the electric equipment is collected by using a signal wire to obtain the far-end voltage of the thermal battery activation power supply.
The beneficial effect of adopting the further scheme is that: the current flowing through the signal wire is extremely small, so that the voltage drop between the electric equipment end and the voltage sampling circuit at the far end of the thermal battery activation power supply is almost negligible, and the voltage of the electric equipment can be collected in the mode.
Further, the electric device further comprises a thermal battery activation unit and other electric devices.
Further, the voltage reference signal generated by the reference source circuit is the same as the sampled far-end voltage obtained when the other electric equipment in the electric equipment works.
The beneficial effect of adopting the further scheme is that: the voltage reference signal designed according to the method can ensure that when only other electric equipment works, the voltage reference signal generated by the reference source circuit is the same as the sampled far-end voltage, and a system is ensured to be in a stable state.
In another embodiment of the invention, a thermal battery activation power supply is provided, comprising a voltage loop PI circuit, a wave generation circuit, a driving circuit and a power topology circuit; the remote line voltage drop compensation device of the embodiment is also included; wherein:
the voltage ring PI circuit is used for carrying out PI comparison on the local voltage and the amplitude-limited voltage, and if the local voltage is not consistent with the amplitude-limited voltage, the regulated local voltage is adjusted to be consistent with the amplitude-limited voltage;
the wave generating circuit is used for outputting a PWM wave signal according to the output voltage of the voltage loop PI circuit;
the driving circuit is used for amplifying the PWM wave signal and driving the power topology circuit to work by using the amplified PWM wave signal;
and taking the output voltage of the power topology circuit as the local voltage of the thermal battery activation power supply, and inputting the local voltage to the input end of the local voltage sampling circuit in the remote line voltage drop compensation device.
The invention has the following beneficial effects: the thermal battery activation power supply has the advantages of the remote line voltage drop compensation device, can ensure that the whole thermal battery power supply and the electric equipment are stable no matter what state the electric equipment is in, can effectively inhibit the power-down restarting condition of other electric equipment in the thermal battery power conversion process of the thermal battery activation power supply, has a simple and effective principle, and has higher application value.
On the basis of the scheme, the invention is further improved as follows:
further, the power supply also comprises a diode, the anode of the diode is connected with the anode of the output voltage of the power topology circuit, and the cathode of the diode is connected with the anode of the power supply output end of the thermal battery activation power supply; and the negative electrode of the output voltage of the power topology circuit is connected with the negative electrode of the power output end of the thermal battery activation power supply.
The beneficial effect of adopting the further scheme is that: in the working process of the thermal battery activation unit, the diode is cut off and is matched with other circuits to ensure that a power topological circuit of the power supply is in a working state but in a reactive output state; after the thermal battery activation unit does not work or the thermal battery activation unit works, the diode is conducted, and the diode is matched with other circuits to ensure that the power supply end works normally to supply power for the electric equipment.
Furthermore, the anode of the power output end of the thermal battery activation power supply and the cathode of the power output end of the thermal battery activation power supply are respectively used for connecting the anode and the cathode of the electric equipment.
Furthermore, the power output end of the thermal battery activation power supply is connected with the electric equipment through a power line.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic diagram of an exemplary apparatus for compensating for line voltage drop of a remote consumer;
FIG. 2 is a schematic diagram of a thermal battery activation system compensating for a line voltage drop across a remote consumer;
FIG. 3 is a schematic diagram of a thermal battery activation power supply including a remote line drop compensation device.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Fig. 1 is a schematic diagram of a typical compensating circuit voltage drop device for a remote consumer, in which a power supply consists of (but is not limited to) a voltage sampling circuit, a reference source circuit, a voltage loop PI circuit, a wave generating circuit, a driving circuit, and a power topology; the point A is positive power topology output, the point B is negative power topology output, the point C is positive power supply output, the point D is negative power supply output, the point E is positive power supply input, the point F is negative power supply input, the point G is positive power supply voltage sampling, and the point H is negative power supply voltage sampling.
In the power supply, A, C two points are in short circuit, B, D two points are in short circuit; the signal 1 is the positive cable of the power supply cable of the electric equipment and is connected to the point E from the point C; the signal 2 is a power supply cable negative of the electric equipment and is connected to the point F from the point D; the signal 3 is a positive signal sampled at the local terminal of the power supply and is connected to one end of a resistor R1 from a point A; the signal 4 is a negative signal sampled at the local terminal of the power supply and is connected to one end of the resistor R2 from the point B; the signal 5 is a far-end sampling positive signal of the power supply, is connected to a point G of the power supply after being in short circuit with a point E in the electric equipment and is connected with the other end of the resistor R1; the signal 6 is a negative signal sampled at the far end of the power supply, is connected to the point H of the power supply after being in short circuit with the point F in the electric equipment and is connected with the other end of the resistor R2; the signal 7 is a power supply voltage sampling signal and is connected to a voltage loop PI circuit by a voltage sampling circuit; the signal 8 is a power supply voltage reference signal and is connected to a voltage loop PI circuit through a reference source circuit; the signal 9 is an output signal of a power supply voltage loop and is connected to the wave generating circuit by a voltage loop PI circuit; the signal 10 is the output signal of the wave generating circuit of the power supply and is connected to the driving circuit by the wave generating circuit; the signal 11 is a power supply driving signal and is connected to the power topology by a driving circuit. The resistor R1 is connected between the point A and the point G, the resistor R2 is connected between the point B and the point H, and the typical values of R1 and R2 are 100 omega.
When the thermal battery activation process exists in the electric equipment, as shown in fig. 2, the electric equipment is divided into a thermal battery activation unit and other electric equipment, and the switch S1 is used for switching control of the thermal battery activation unit. It has the following problems: (for convenience of explanation, the voltage at the power supply input terminal E, F is 28VDC when the remote compensation voltage is 28VDC and the line voltage drop is 4VDC, the voltage at the power supply output terminal C, D is 32VDC, the voltage sampling point G, H is 28VDC, and the voltage after the thermal battery is activated is 36VDC)
1) Before S1 is closed, the thermal battery activation unit does not work, the voltage of the power consumption device input end E, F point is 28VDC, the voltage of the power supply output end C, D point is 32VDC, and the voltage sampling point G, H of the power supply is 28 VDC.
2) After the switch S1 is closed, the thermal battery activation unit starts to operate, the thermal battery gradually builds voltage and reaches 36VDC, at this time, the voltage at the input end E, F of the electric device is 36VDC, the voltage at the output end C, D of the power supply is 36VDC, the voltage sampling point G, H of the power supply is 36VDC, the electric energy required by other electric devices is provided by the thermal battery activation unit, at this time, since the voltage sampling point G, H of the power supply is higher than the set far-end compensation voltage 28VDC of the power supply, the closed-loop control theory can know that: the signal 9 in the power supply is at the minimum value, the output signal of the signal 10 wave-generating circuit is zero, the signal 11 drives the signal to be zero, and the power topology does not work.
3) After the activation of the hot battery activation unit in the electric equipment is completed, the switch S1 is turned off, and at this time, since the power supply is in the non-operating state in 2), the switch S1 temporarily cuts off the power of other electric equipment in the cutting process, and then the power supply starts to operate and maintains the state in 1).
As described above, when the electric device has a thermal battery activation condition, the application of the typical remote electric device line voltage drop compensation device may cause a temporary power outage to other electric devices.
The present invention provides a remote line voltage drop compensation device for a thermal battery activation power supply, as shown in fig. 3, including:
the remote voltage sampling circuit is used for collecting remote voltage of the thermal battery activation power supply, the positive input end and the negative input end of the remote voltage sampling circuit are respectively represented as G, H, and an output signal of the remote voltage sampling circuit is represented by a signal 7;
a reference source circuit for generating a voltage reference signal, an output signal of the reference source circuit being represented by signal 14;
a reference loop PI circuit for adjusting the remote voltage according to the voltage reference signal, an output signal of the reference loop PI circuit being represented by a signal 8;
the reference amplitude limiting circuit is used for carrying out amplitude limiting on the output voltage of the reference ring PI circuit, and an output signal of the reference amplitude limiting circuit is represented by a signal 9;
the local voltage sampling circuit is used for collecting the local voltage of the thermal battery activation power supply, the positive electrode input end and the negative electrode input end of the local sampling circuit are respectively represented as I, J, and the output signal of the local voltage sampling circuit is represented by a signal 10;
and the voltage after amplitude limiting and the local voltage are respectively input to a reference input end and a voltage input end of a voltage loop PI circuit in the thermal battery activation power supply.
Compared with the prior art, in the far-end line voltage drop compensation device of the thermal battery activation power supply, the sampling signal of the far-end voltage is sent to the reference ring PI circuit, and then the reference limiting circuit is used for completing the functions of regulating the voltage ring reference and limiting the amplitude, so that the aim of limiting the minimum value of the local output voltage of the power supply is fulfilled. Through mutual cooperation and mutual clamping between the circuits, the power supply end is still in a working state after the thermal battery activation unit works, and other equipment cannot be powered off due to switching of the switch.
Preferably, the far-end voltage sampling circuit is configured to sample the far-end voltage according to a certain proportion, so that the sampled far-end voltage matches a voltage range processed by the far-end line voltage drop compensation device.
The far-end voltage is sampled according to a certain proportion, so that the sampled far-end voltage is matched with the voltage range processed by the far-end line voltage drop compensation device, the accuracy of a processing result is effectively guaranteed, meanwhile, the service life of the device can be prolonged, and the influence caused by device damage is reduced.
Preferably, the local voltage sampling circuit is configured to sample the local voltage according to a certain proportion, so that the sampled local voltage matches a voltage range processed by the far-end line voltage drop compensation device.
The local voltage is sampled according to a certain proportion, so that the sampled local voltage is matched with the voltage range processed by the far-end line voltage drop compensation device, the accuracy of a processing result is effectively guaranteed, meanwhile, the service life of the device can be prolonged, and the influence caused by device damage is reduced.
Preferably, the voltage of the electric equipment is collected by a signal wire to obtain the far-end voltage of the heat battery activation power supply, and the positive pole and the negative pole of the signal are respectively represented by a signal 5 and a signal 6.
The current flowing through the signal wire is extremely small, so that the voltage drop between the electric equipment end and the voltage sampling circuit at the far end of the thermal battery activation power supply is almost negligible, and the voltage of the electric equipment can be collected in the mode.
Preferably, the powered device further comprises a thermal battery activation unit and other powered devices.
Preferably, the reference source circuit generates a voltage reference signal that is the same as the sampled remote voltage obtained when only the other electrical devices of the electrical devices are operating.
The voltage reference signal designed according to the method can ensure that when only other electric equipment works, the voltage reference signal generated by the reference source circuit is the same as the sampled far-end voltage, and a system is ensured to be in a stable state.
The far-end line voltage drop compensation device designed by the invention is combined with the existing thermal battery activation power supply to form a new thermal battery activation power supply, and as shown in fig. 3, the new thermal battery activation power supply comprises a voltage ring PI circuit, a wave generating circuit, a driving circuit and a power topology circuit; wherein:
the voltage ring PI circuit is used for carrying out PI comparison on the local voltage and the voltage after amplitude limiting, if the local voltage is not consistent with the voltage after amplitude limiting, the regulated local voltage is adjusted to be consistent with the voltage after amplitude limiting, and an output signal of the voltage ring PI circuit is represented by a signal 11;
the wave generating circuit is used for outputting a PWM wave signal according to the output voltage of the voltage loop PI circuit, and the output signal of the wave generating circuit is represented by a signal 12;
the driving circuit is used for amplifying the PWM wave signal and driving the power topology circuit to work by using the amplified PWM wave signal, and an output signal of the driving circuit is represented by a signal 13;
taking the output voltage of the power topology circuit as a local voltage of a thermal battery activation power supply, wherein the positive pole and the negative pole of the output local voltage are represented as A, B, and the positive pole output signal and the negative pole output signal of the local voltage are represented as a signal 3 and a signal 4 respectively; and inputting the local voltage to the input end of a local voltage sampling circuit in the remote line voltage drop compensation device.
Compared with the prior art, the thermal battery activation power supply provided by the invention has the advantages of the remote line voltage drop compensation device, can ensure the stability of the whole thermal battery power supply and the electric equipment no matter what state the electric equipment is in, can effectively inhibit the power-down restart condition of other electric equipment in the process of converting the thermal battery activation power supply into electricity, has a simple and effective principle, and has higher application value.
Preferably, the power supply further comprises a diode, an anode of the diode is connected with an anode of the output voltage of the power topology circuit, and a cathode of the diode is connected with an anode of the power supply output end of the thermal battery activation power supply; and the negative electrode of the output voltage of the power topology circuit is connected with the negative electrode of the power output end of the thermal battery activation power supply.
In the working process of the thermal battery activation unit, the diode is cut off and is matched with other circuits to ensure that a power topological circuit of the power supply is in a working state but in a reactive output state; after the thermal battery activation unit does not work or the thermal battery activation unit works, the diode is conducted, and the diode is matched with other circuits to ensure that the power supply end works normally to supply power for the electric equipment.
Preferably, the positive electrode of the power output end of the thermal battery activation power supply and the negative electrode of the power output end of the thermal battery activation power supply are respectively used for connecting the positive electrode and the negative electrode of the electric device, and the positive electrode connection signal and the negative electrode connection signal are respectively represented by a signal 1 and a signal 2.
Preferably, the power output end of the thermal battery activation power supply is connected with the electric equipment through a power line, and a certain voltage drop exists between the power output end of the thermal battery activation power supply and the electric equipment due to the fact that the power line has a certain resistance value.
The mechanism of the remote line voltage drop compensation device of the thermal battery activation power supply is as follows (for convenience of explanation, the local voltage sampling ratio of the power supply is set to be 6: 1, namely the voltage of a signal 10 is 6V when the voltage difference between an I point and a J point is 36V, the remote voltage sampling ratio of the power supply is set to be 6: 1, namely the voltage of a signal 7 is 6V when the voltage difference between a G point and an H point is 36V, the voltage of a signal 14 is constant 5V, the voltage of a power reference amplitude limiting circuit output signal 9 is limited to be 4.5-6V, the remote voltage of the power supply is set to be 30VDC, namely the voltage of an electrical equipment input end E, F point is set to be 30VDC, the line voltage drop is 4VDC, the voltage of a power output end C, D point is 34VDC, the voltage of a diode D1 is set to be 1V, the voltage of a power topology output end A, B point is set to be 35V, and the voltage after:
1) before S1 is closed, the thermal battery activation unit does not work, the voltage of the power consumption equipment input end E, F point is 30VDC, the voltage of the power supply output end C, D point is 34VDC, and the diode D1 is conducted; the remote voltage sampling point G, H of the power supply is 30VDC, the voltage of the signal 7 is 30/6-5V, and the voltage value is consistent with the voltage value of the signal 14; the voltage at the power supply power topology output end A, B point is 35V, and the voltage of the signal 10 is 35/6-5.83V. According to the closed-loop control principle, any stably-operating power supply system can adjust the voltage reference signal input by the voltage loop PI circuit to be consistent with the voltage sampling signal, so that the voltage of the signal 9 is also adjusted to be 5.83V.
2) After the switch S1 is closed, the thermal battery activation unit starts to work, the thermal battery builds up voltage gradually and reaches 36VDC, the diode D1 is cut off, and the electric energy required by other electric equipment is provided by the thermal battery activation unit; the remote voltage sampling point G, H of the power supply is 36VDC, the voltage of signal 7 is 36/6-6V, which is greater than the voltage value of signal 14, according to the closed-loop control principle: after the voltage value of the signal 8 is reduced to the minimum, the output voltage of the signal 9 is limited to 4.5V by the reference limiter circuit, at this time, in order to keep the system stable, the voltage of the signal 10 should also be reduced to 4.5V, and the voltage at the point of the reverse power supply topology output end A, B is 4.5 × 6 — 27V. The power supply power topology is in an operational but no power output state.
3) When the activation of the hot cell activation unit in the electric device is completed, the switch S1 is turned off. At this time, the diode D1 is turned on, the voltage at the power supply topology output end A, B is 27VDC, and the voltage at the power supply output end C, D is 26 VDC. The voltage at the input end E, F of the electric device is 22VDC, the far-end voltage sampling point G, H of the power supply is 22VDC, the voltage of the signal 7 is 22/6-3.67V, which is smaller than the voltage value of the signal 14, and in order to keep the system stable, the output voltage of the power supply gradually rises until the state in 1) is recovered.
In the process, the power supply is always kept in a working state, the lowest output voltage is clamped at 27V, and other electric equipment cannot be powered off due to switching of the switch S1.
In the invention, the reference loop PI circuit, the reference amplitude limiting circuit and the diode D1 are added on the basis of a typical compensation remote-end electric equipment line voltage drop device, and the voltage sampling part is divided into the remote-end voltage sampling circuit and the local voltage sampling circuit. The device can effectively inhibit the power-down restart condition of other electric equipment in the process of converting the heat battery into electricity by the heat battery activation power supply, and has the advantages of simple and effective principle and higher application value.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium, to instruct related hardware. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
1. A remote line drop compensation device for a thermal battery activated power supply, comprising:
the far-end voltage sampling circuit is used for collecting the far-end voltage of the thermal battery activation power supply; acquiring the voltage of the electric equipment by using a signal wire to obtain the far-end voltage of the thermal battery activation power supply; the electric equipment comprises a thermal battery activation unit and other electric equipment; a reference source circuit for generating a voltage reference signal; the voltage reference signal is the same as the sampled far-end voltage obtained when the other electric equipment in the electric equipment works;
the reference ring PI circuit is used for adjusting the far-end voltage according to the voltage reference signal;
the reference amplitude limiting circuit is used for carrying out amplitude limiting on the output voltage of the reference ring PI circuit;
the local voltage sampling circuit is used for collecting the local voltage of the thermal battery activation power supply;
and the voltage after amplitude limiting and the local voltage are respectively input to a reference input end and a voltage input end of a voltage loop PI circuit in the thermal battery activation power supply.
2. The apparatus of claim 1, wherein the far-end voltage sampling circuit is configured to sample the far-end voltage in a proportion such that the sampled far-end voltage matches a voltage range handled by the far-end line drop compensation apparatus.
3. The apparatus of claim 1 or 2, wherein the local voltage sampling circuit is configured to sample the local voltage in a proportion such that the sampled local voltage matches a voltage range handled by the remote line drop compensation apparatus.
4. A thermal battery activation power supply comprises a voltage loop PI circuit, a wave generating circuit, a driving circuit and a power topology circuit; -further comprising a remote line drop compensation device according to any of claims 1-3; wherein:
the voltage ring PI circuit is used for carrying out PI comparison on the local voltage and the voltage after amplitude limiting, and if the local voltage is not consistent with the voltage after amplitude limiting, the local voltage is adjusted to be consistent with the voltage after amplitude limiting;
the wave generating circuit is used for outputting a PWM wave signal according to the output voltage of the voltage loop PI circuit;
the driving circuit is used for amplifying the PWM wave signal and driving the power topology circuit to work by using the amplified PWM wave signal;
and taking the output voltage of the power topology circuit as the local voltage of the thermal battery activation power supply, and inputting the local voltage to the input end of the local voltage sampling circuit in the remote line voltage drop compensation device.
5. The thermal battery activation power supply of claim 4, further comprising a diode, an anode of the diode being connected to the positive pole of the power topology output voltage, a cathode of the diode being connected to the positive pole of the power supply output of the thermal battery activation power supply; and the negative electrode of the output voltage of the power topology circuit is connected with the negative electrode of the power output end of the thermal battery activation power supply.
6. The thermal battery activation power supply according to claim 5, wherein the positive power supply output terminal of the thermal battery activation power supply and the negative power supply output terminal of the thermal battery activation power supply are respectively used for connecting the positive electrode and the negative electrode of the electric device.
7. The thermal battery activation power supply of claim 6, wherein the power output of the thermal battery activation power supply is connected to the powered device by a power cord.
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| JP2527401B2 (en) * | 1993-01-06 | 1996-08-21 | 株式会社タムラ製作所 | Automatic correction method of thermistor voltage for battery temperature detection by microcomputer |
| CN102316654B (en) * | 2010-07-05 | 2013-09-04 | 深圳市新超亮特种显示设备有限公司 | Independent protection circuit for multi-lamp inversion power supply |
| CN102222974B (en) * | 2011-06-15 | 2013-04-24 | 北京机械设备研究所 | Far-end and local sampling control circuit for power supply |
| CN204190596U (en) * | 2014-09-18 | 2015-03-04 | 江苏大学 | A kind of Disturbance Rejection device of reduction voltage circuit |
| CN206850425U (en) * | 2017-06-17 | 2018-01-05 | 艾德克斯电子（南京）有限公司 | A kind of SENSE distal ends voltage compensating circuit of dc source |
| CN207541525U (en) * | 2017-12-12 | 2018-06-26 | 广州智光电气股份有限公司 | A kind of shore electric power and its output voltage-operated device |
| CN108279726B (en) * | 2018-01-25 | 2020-08-07 | 北京航天发射技术研究所 | Remote voltage stabilization method based on single line voltage drop sampling calculation and compensation |
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