CN111564981A - Power supply system - Google Patents
Power supply system Download PDFInfo
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- CN111564981A CN111564981A CN202010527031.8A CN202010527031A CN111564981A CN 111564981 A CN111564981 A CN 111564981A CN 202010527031 A CN202010527031 A CN 202010527031A CN 111564981 A CN111564981 A CN 111564981A
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- power supply
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims description 71
- 238000004146 energy storage Methods 0.000 claims description 17
- 230000005669 field effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2173—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a power supply system which comprises a control device, a mutual inductance power taking device and a first power supply device, wherein the control device is provided with a voltage input end, the input end of the mutual inductance power taking device is connected with external power supply equipment, the first power supply device comprises a boosting rectification circuit and a voltage stabilizing circuit, the input end of the boosting rectification circuit is connected with the output end of the mutual inductance power taking device, the input end of the voltage stabilizing circuit is connected with the output end of the boosting rectification circuit, and the output end of the voltage stabilizing circuit is connected with the voltage input end so as to supply power to the control device through the voltage input end. That is, in this embodiment, the first power supply device may supply power to the control device, and the mutual inductance power-taking device may isolate a strong current, so as to improve the power supply safety of the power supply system.
Description
Technical Field
The invention relates to the field of smart homes, in particular to a power supply system.
Background
Along with the high-speed development of the internet of things, smart homes enter a flying development period, the demand for smart home products is increasingly high, most of the smart home products are generally supplied with power through a non-isolated switch power supply or an isolated switch power supply, however, as long as the switch power supply can pollute and interfere with a power grid or other electric appliances, the ripple of the switch power supply is relatively large, a generated switch signal can also interfere with an intelligent module in the smart home product, and the non-isolated switch power supply is not electrically isolated, so that electric shock risks exist.
Disclosure of Invention
The invention mainly aims to provide a power supply system, aiming at improving the power supply safety of the power supply system.
To achieve the above object, the present invention provides a power supply system, including:
a control device having a voltage input;
the input end of the mutual inductance electricity taking device is connected with external power supply equipment;
the first power supply device comprises a boost rectifying circuit and a voltage stabilizing circuit, wherein the input end of the boost rectifying circuit is connected with the output end of the mutual inductance power taking device, the input end of the voltage stabilizing circuit is connected with the output end of the boost rectifying circuit, and the output end of the voltage stabilizing circuit is connected with the voltage input end so as to supply power to the control device through the voltage input end.
In an optional embodiment, the mutual inductance power taking device has a first output end and a second output end, and the boost rectifying circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a first diode, a second diode, a third diode, a fourth diode, and a fifth diode that are connected in parallel to the first output end and the second output end;
the first capacitor is connected between the first output end and the cathode of the first diode, the second capacitor is connected between the anode of the first diode and the cathode of the second diode, the third capacitor is connected between the anode of the second diode and the cathode of the third diode, the fourth capacitor is connected between the anode of the third diode and the cathode of the fourth diode, and the fifth capacitor is connected between the anode of the fourth diode and the cathode of the fifth diode.
In an optional embodiment, the mutual inductance power-taking device is a current transformer, the boost rectification circuit further includes a conversion resistor for converting a current value output by an output end of the mutual inductance power-taking device into a voltage value, and two ends of the conversion resistor are respectively connected to the first output end and the second output end.
In an optional embodiment, the voltage stabilizing circuit comprises a triode, a voltage stabilizing resistor and a voltage stabilizing tube, wherein a collector of the triode is connected with a cathode of the fifth diode, an emitter of the triode is connected with the voltage input end, a base of the triode is connected with the voltage input end through the voltage stabilizing tube, one end of the voltage stabilizing resistor is connected between the collector of the triode and the cathode of the fifth diode, and the other end of the voltage stabilizing resistor is connected between the base of the triode and the voltage stabilizing tube.
In an optional embodiment, the voltage stabilizing circuit further includes a first energy storage capacitor, a second energy storage capacitor, and a first filter capacitor, the first energy storage capacitor and the second energy storage capacitor are connected in series and are disposed between the voltage regulator tube and the voltage input end, one end of the first filter capacitor is connected between the voltage regulator tube and the first energy storage capacitor, and the other end of the first filter capacitor is connected to the voltage input end.
In an optional embodiment, the first power supply further includes a fuse connected between the first filter capacitor and the voltage input terminal.
In an optional embodiment, the first power supply device further includes a plurality of second filter capacitors, one end of each of the plurality of second filter capacitors is commonly connected to the voltage output terminal, and the other end of each of the plurality of second filter capacitors is grounded.
In an optional embodiment, the power supply system further includes a second power supply device, the second power supply device includes a battery, a field-effect transistor, and a sixth diode, a gate of the field-effect transistor is connected to a cathode of the fifth diode, a drain of the field-effect transistor is connected to the voltage input terminal through the sixth diode, a source of the field-effect transistor is connected to an anode of the battery, and a cathode of the battery is grounded.
In an optional embodiment, the mutual inductance power taking device is further provided with a current detection end, and the current detection end is connected with an external metering device.
The invention provides a power supply system which comprises a control device, a mutual inductance power taking device and a first power supply device, wherein the control device is provided with a voltage input end, the input end of the mutual inductance power taking device is connected with external power supply equipment, the first power supply device comprises a boosting rectification circuit and a voltage stabilizing circuit, the input end of the boosting rectification circuit is connected with the output end of the mutual inductance power taking device, the input end of the voltage stabilizing circuit is connected with the output end of the boosting rectification circuit, and the output end of the voltage stabilizing circuit is connected with the voltage input end so as to supply power to the control device through the voltage input end. That is, in this embodiment, the first power supply device may supply power to the control device, and the mutual inductance power-taking device may isolate a strong current, so as to improve the power supply safety of the power supply system.
Drawings
In order to more clearly illustrate the embodiments or exemplary technical solutions of the present invention, the drawings used in the embodiments or exemplary descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a power supply system according to an embodiment of the present invention;
fig. 2 is a schematic circuit structure diagram of a power supply system according to an embodiment of the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 2, the present invention provides a power supply system, wherein the power supply system is used for supplying power to smart home products. Of course, in other embodiments, the power supply system may also be used for supplying power to other products, and the present embodiment is not limited thereto.
Specifically, as shown in fig. 1 to 2, the power supply system includes a control device 10, where the control device 10 is a control center of the smart home product and is configured to control the smart home product to implement a corresponding function, in this embodiment, the control device 10 has a voltage input terminal, and the voltage input terminal is a voltage access port of the control device 10, that is, the power supply system may provide a working voltage to the control device 10 through the voltage input terminal, so that the control device 10 can normally operate.
Further, the power supply system further comprises a mutual inductance power taking device 20 and a first power supply device 30, wherein the input end of the mutual inductance power taking device 20 is connected with external power supply equipment, the input end of the first power supply device 30 is connected with the mutual inductance power taking device 20, and the output end of the first power supply device 30 is connected with the voltage input end, so that the first power supply device 30 supplies power to the control device 10 through the voltage input end after the mutual inductance power taking device 20 takes power.
Specifically, the first power supply device 30 includes a boost rectifying circuit 31 and a voltage stabilizing circuit 32, an input end of the boost rectifying circuit 31 is connected to an output end of the mutual inductance power taking device 20, an input end of the voltage stabilizing circuit 32 is connected to an output end of the boost rectifying circuit 31, and an output end of the voltage stabilizing circuit 32 is connected to the voltage input end, so as to supply power to the control device 10 through the voltage input end.
Optionally, the mutual inductance power-taking device 20 may be a voltage transformer, that is, the mutual inductance power-taking device 20 may directly take power from an external power supply device, convert the power into a small voltage, and transmit the small voltage to the first power supply device 30, so that the first power supply device 30 supplies power to the control device 10 through the voltage input terminal.
Or, the mutual inductance power taking device 20 is a current transformer, that is, the current transformer is configured to convert a primary current with a large value into a secondary current with a small value through a certain transformation ratio, so as to transmit the secondary current to the first power supply device 30, and supply power to the control device 10 through the first power supply device 30. In this way, the supply current of the first power supply device 30 can be isolated from the strong current by the mutual inductance power taking device 20, so that the threat of the strong current to the safety of the user is avoided. The volume of the voltage transformer is larger than that of the current transformer, and the voltage transformer needs to be directly bridged at two ends of a zero line and a live line of external power supply equipment, so that the potential hazard of electric shock can be caused. In this embodiment, the mutual inductance current getting device 20 may be a current transformer.
It is understood that the transformation ratio of the current transformer can be set according to the performance of the current transformer, and is not limited herein.
In an embodiment, since the output end of the mutual inductance power-taking device 20 outputs a current, in order to enable the voltage received by the boost rectifying circuit 31, that is, the boost rectifying circuit 31 includes a conversion resistor R1 for converting a current value output by the output end of the mutual inductance power-taking device 20 into a voltage value, two ends of the conversion resistor R1 are respectively connected to the first output end 21 and the second output end 22 of the mutual inductance power-taking device 20, that is, the conversion resistor R1 is disposed between the mutual inductance power-taking device 20 and the first power supply device 30, so that the mutual inductance power-taking device 20 provides a power supply voltage to the first power supply device 30.
Specifically, after the boost rectifying circuit 31 receives the power supply voltage, since the power supply voltage is obtained by converting the secondary current output by the mutual inductance power taking device 20, that is, the value of the power supply voltage is small, at this time, the boost rectifying circuit 31 boosts and rectifies the power supply voltage, and inputs the boosted and rectified voltage into the voltage stabilizing circuit 32 for voltage stabilization, at this time, the working voltage of the control device 10 can be obtained, and the working voltage is transmitted to the control device 10 through the voltage input terminal, so as to ensure the normal operation of the control device 10. That is, in the present embodiment, the first power supply device 30 can supply power to the control device 10, and a battery is not required to supply power, so that the service life of the battery is prolonged.
Further, a current detection end 23 is further disposed on the mutual inductance power-taking device 20, and the current detection end 23 is connected with an external metering device, that is, the external metering device can detect the current amount on the mutual inductance power-taking device 20 through the current detection end 23.
Specifically, the boost rectifying circuit 31 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, and a fifth diode D5, which are connected in parallel to the first output terminal 21 and the second output terminal 22. Wherein the first capacitor C1 is connected between the first output terminal 21 and the cathode of the first diode D1, the second capacitor C2 is connected between the anode of the first diode D1 and the cathode of the second diode D2, the third capacitor C3 is connected between the anode of the second diode D2 and the cathode of the third diode D3, the fourth capacitor C4 is connected between the anode of the third diode D3 and the cathode of the fourth diode D4, and the fifth capacitor C5 is connected between the anode of the fourth diode D4 and the cathode of the fifth diode D5. In other words, in the present embodiment, the boost rectifying circuit 31 is formed by resistors (R2 to R6) and diodes (D1 to D5) to boost and rectify the voltage converted from the current output by the mutual inductance current taking device 20.
In this embodiment, the anode and cathode of the first diode D1 are input terminals of the boost rectifier circuit 31, and the anode and cathode of the fifth diode D5 are output terminals of the boost rectifier circuit 31. Namely, the first output end 21 and the second output end 22 of the mutual inductance power taking device 20 are respectively connected to the anode and the cathode of the first diode D1, and the anode and the cathode of the fifth diode D5 are connected to the voltage stabilizing circuit 32.
Specifically, the voltage stabilizing circuit 32 includes a triode Q1, a voltage stabilizing resistor R2 and a voltage stabilizing tube Z, a collector C of the triode Q1 is connected with a cathode of the fifth diode D5, an emitter E of the triode Q1 is connected with the voltage input end, a base B of the triode Q1 is connected with the voltage input end through the voltage stabilizing tube Z, one end of the voltage stabilizing resistor R2 is connected between the collector C of the triode Q1 and the cathode of the fifth diode D5, and the other end of the voltage stabilizing resistor R2 is connected between the base B of the triode Q1 and the voltage stabilizing tube Z. In this embodiment, a voltage regulator circuit is formed by the triode Q1, the voltage regulator resistor R2 and the voltage regulator tube Z, so as to regulate the voltage boosted and rectified by the boost rectifier circuit 31, and obtain a stable working voltage.
Specifically, the voltage stabilizing circuit 32 further includes a first energy storage capacitor C6, a second energy storage capacitor C7, and a first filter capacitor C8, the first energy storage capacitor C6 and the second energy storage capacitor C7 are connected in series and are disposed between the voltage regulator tube Z and the voltage input end, one end of the first filter capacitor C8 is connected between the voltage regulator tube Z and the first energy storage capacitor C6, and the other end of the first filter capacitor C8 is connected to the voltage input end. The first filter capacitor C8 is configured to filter noise in the stabilized working voltage, and the first energy-storage capacitor C6 and the second energy-storage capacitor C7 are configured to store electric energy.
Specifically, the first power supply device 30 further includes a fuse 33, and the fuse 33 is connected between the first filter capacitor C8 and the voltage input terminal. That is, when the control device 10 is short-circuited, the fuse 33 may be opened to disconnect the control device 10 from the first power supply device 30, so as to prevent the first power supply device 30 from burning out.
Optionally, the first power supply device 30 further includes a plurality of second filter capacitors C9, one end of each of the second filter capacitors C9 is commonly connected to the voltage output terminal, and the other end of each of the second filter capacitors C9 is connected to ground. The number of the second filter capacitors C9 is the same as the number of the power supply terminals provided on the control device 10, that is, when the first power supply device 30 supplies power to each power supply terminal, noise in the operating voltage can be filtered by the second filter capacitors C9.
In an embodiment, the power supply system further includes a second power supply device 40, the second power supply device 40 includes a battery batt, a fet Q2 and a sixth diode D6, a gate G of the fet Q2 is connected to a cathode of the fifth diode D5, a drain D of the fet Q2 is connected to the voltage input terminal through the sixth diode D6, a source S of the fet Q2 is connected to an anode of the battery batt, and a cathode of the battery batt is grounded. The fet Q2 is configured to connect or disconnect the battery BATTRY and the voltage input terminal, that is, if no current passes through the mutual inductance power taking device 20, at this time, the fet Q2 is in a connected state, that is, the battery BATTRY generates a working voltage, and the working voltage sequentially flows through the fet Q2 and the sixth diode D6 from the positive electrode of the battery BATTRY and is then transmitted to the voltage input terminal, so as to supply power to the control device 10.
Optionally, if a current passes through the mutual inductance current obtaining device 20, at this time, the fet Q2 is in an off state, and the voltage of the battery batt is lower than the voltage of the first power supply device 30, that is, at this time, the first power supply device 30 supplies power to the control device 10. At this time, since the sixth diode D6 has a unidirectional conductivity, when the first power supply device 30 supplies power to the control device 10, the voltage of the first power supply device 30 does not flow to the battery batt through the sixth diode D6, that is, the sixth diode D6 is used to prevent the voltage from flowing back to the battery batt.
Further, the control device 10 further includes an antenna circuit 11 and a crystal oscillator circuit 12, and the specific circuits and functions of the antenna circuit 11 and the crystal oscillator circuit 12 are the same as those of the antenna circuit and the crystal oscillator circuit in the prior art, which is not described herein again.
In an embodiment of the present invention, the power supply system includes a control device 10, a mutual inductance power-taking device 20, and a first power supply device 30, where the control device 10 has a voltage input end, an input end of the mutual inductance power-taking device 20 is connected to an external power supply device, an input end of the first power supply device 30 is connected to the mutual inductance power-taking device 20, and an output end of the first power supply device 30 is connected to the voltage input end, so as to supply power to the control device 10 through the voltage input end. That is, in this embodiment, the first power supply device 30 may supply power to the control device 10, and the mutual inductance power taking device may isolate a strong current, so as to improve the power supply safety of the power supply system.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the specification and the drawings, or any other related technical fields directly or indirectly applied thereto under the conception of the present invention are included in the scope of the present invention.
Claims (9)
1. A power supply system, characterized in that the power supply system comprises:
a control device having a voltage input;
the input end of the mutual inductance electricity taking device is connected with external power supply equipment;
the first power supply device comprises a boost rectifying circuit and a voltage stabilizing circuit, wherein the input end of the boost rectifying circuit is connected with the output end of the mutual inductance power taking device, the input end of the voltage stabilizing circuit is connected with the output end of the boost rectifying circuit, and the output end of the voltage stabilizing circuit is connected with the voltage input end so as to supply power to the control device through the voltage input end.
2. The power supply system according to claim 1, wherein the mutual inductance power taking device has a first output end and a second output end, the boost rectifying circuit includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a first diode, a second diode, a third diode, a fourth diode, and a fifth diode connected in parallel to the first output end and the second output end;
the first capacitor is connected between the first output end and the cathode of the first diode, the second capacitor is connected between the anode of the first diode and the cathode of the second diode, the third capacitor is connected between the anode of the second diode and the cathode of the third diode, the fourth capacitor is connected between the anode of the third diode and the cathode of the fourth diode, and the fifth capacitor is connected between the anode of the fourth diode and the cathode of the fifth diode.
3. The power supply system according to claim 2, wherein the mutual inductance power-taking device is a current transformer, the boost rectifier circuit further includes a conversion resistor for converting a current value output from an output terminal of the mutual inductance power-taking device into a voltage value, and two ends of the conversion resistor are respectively connected to the first output terminal and the second output terminal.
4. The power supply system according to claim 2, wherein the voltage stabilizing circuit comprises a triode, a voltage stabilizing resistor and a voltage stabilizing tube, wherein a collector of the triode is connected with a cathode of the fifth diode, an emitter of the triode is connected with the voltage input end, a base of the triode is connected with the voltage input end through the voltage stabilizing tube, one end of the voltage stabilizing resistor is connected between the collector of the triode and the cathode of the fifth diode, and the other end of the voltage stabilizing resistor is connected between the base of the triode and the voltage stabilizing tube.
5. The power supply system of claim 4, wherein the voltage regulator circuit further comprises a first energy storage capacitor, a second energy storage capacitor and a first filter capacitor, the first energy storage capacitor and the second energy storage capacitor are connected in series and are arranged between the voltage regulator tube and the voltage input end, one end of the first filter capacitor is connected between the voltage regulator tube and the first energy storage capacitor, and the other end of the first filter capacitor is connected with the voltage input end.
6. The power supply system of claim 5, wherein said first power supply further comprises a fuse connected between said first filter capacitor and said voltage input.
7. The power supply system according to claim 6, wherein the first power supply device further includes a plurality of second filter capacitors, one end of each of the plurality of second filter capacitors is commonly connected to the voltage output terminal, and the other end of each of the plurality of second filter capacitors is grounded.
8. The power supply system according to claim 2, further comprising a second power supply device, wherein the second power supply device comprises a battery, a field effect transistor and a sixth diode, a gate of the field effect transistor is connected to a cathode of the fifth diode, a drain of the field effect transistor is connected to the voltage input terminal through the sixth diode, a source of the field effect transistor is connected to a positive electrode of the battery, and a negative electrode of the battery is grounded.
9. The power supply system according to claim 1, wherein the mutual inductance electricity taking device is further provided with a current detection end, and the current detection end is connected with an external metering device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010527031.8A CN111564981B (en) | 2020-06-10 | 2020-06-10 | Power supply system |
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| CN202010527031.8A CN111564981B (en) | 2020-06-10 | 2020-06-10 | Power supply system |
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| CN111564981A true CN111564981A (en) | 2020-08-21 |
| CN111564981B CN111564981B (en) | 2024-08-02 |
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| CN102751754A (en) * | 2012-06-28 | 2012-10-24 | 北京航空航天大学 | Solar energy and CT (current) mixing type energy storage and power supply device based on power control |
| CN106487101A (en) * | 2016-09-13 | 2017-03-08 | 中国农业大学 | A kind of current transformer energy taking device based on load control and method |
| CN107589349A (en) * | 2017-10-24 | 2018-01-16 | 国家电网公司 | High voltage induction electricity getting system |
| WO2019100731A1 (en) * | 2017-11-23 | 2019-05-31 | 广州金升阳科技有限公司 | Auxiliary power supply circuit |
| CN110752652A (en) * | 2019-10-29 | 2020-02-04 | 国网上海市电力公司 | Mutual inductance electricity taking device and method for 3-core system cable |
| CN212278139U (en) * | 2020-06-10 | 2021-01-01 | 深圳酷宅科技有限公司 | Power supply system |
-
2020
- 2020-06-10 CN CN202010527031.8A patent/CN111564981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751754A (en) * | 2012-06-28 | 2012-10-24 | 北京航空航天大学 | Solar energy and CT (current) mixing type energy storage and power supply device based on power control |
| CN106487101A (en) * | 2016-09-13 | 2017-03-08 | 中国农业大学 | A kind of current transformer energy taking device based on load control and method |
| CN107589349A (en) * | 2017-10-24 | 2018-01-16 | 国家电网公司 | High voltage induction electricity getting system |
| WO2019100731A1 (en) * | 2017-11-23 | 2019-05-31 | 广州金升阳科技有限公司 | Auxiliary power supply circuit |
| CN110752652A (en) * | 2019-10-29 | 2020-02-04 | 国网上海市电力公司 | Mutual inductance electricity taking device and method for 3-core system cable |
| CN212278139U (en) * | 2020-06-10 | 2021-01-01 | 深圳酷宅科技有限公司 | Power supply system |
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| CN111564981B (en) | 2024-08-02 |
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