CN111564981B - Power supply system - Google Patents
Power supply system Download PDFInfo
- Publication number
- CN111564981B CN111564981B CN202010527031.8A CN202010527031A CN111564981B CN 111564981 B CN111564981 B CN 111564981B CN 202010527031 A CN202010527031 A CN 202010527031A CN 111564981 B CN111564981 B CN 111564981B
- Authority
- CN
- China
- Prior art keywords
- diode
- power supply
- capacitor
- voltage
- voltage stabilizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 50
- 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 15
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 abstract description 4
- 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
-
- 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
Landscapes
- 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 equipment, the first power supply device comprises a boosting rectifier circuit and a voltage stabilizing circuit, the input end of the boosting rectifier 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 rectifier 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 this embodiment, the first power supply device may be used to supply power to the control device, and the mutual inductance power taking device may be used to perform strong current isolation, so as to improve the power supply safety of the power supply system.
Description
Technical Field
The invention relates to the field of intelligent home, in particular to a power supply system.
Background
Along with the high-speed development of the internet of things, intelligent home has entered the rapid expansion period, and the demand to intelligent home products is increasingly greater, and most intelligent 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 electricity, the ripple of the switch power supply is also relatively large, the generated switch signal can interfere with an intelligent module in the intelligent home products, and the non-isolated switch power supply has electric shock hazard because of no electric isolation.
Disclosure of Invention
The invention mainly aims to provide a power supply system, which aims to improve the power supply safety of the power supply system.
To achieve the above object, the present invention proposes 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 power supply device comprises a voltage boosting rectifying circuit and a voltage stabilizing circuit, wherein the input end of the voltage boosting 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 voltage boosting 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 parallel connected 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, and the boost rectifying 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, where 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 includes a triode, a voltage stabilizing resistor and a voltage stabilizing tube, 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 a 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, where the first energy storage capacitor and the second energy storage capacitor are connected in series and are disposed between the voltage stabilizing tube and the voltage input end, one end of the first filter capacitor is connected between the voltage stabilizing tube and the first energy storage capacitor, and the other end of the first filter capacitor is connected with the voltage input end.
In an alternative embodiment, the first power supply device 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 ends of the second filter capacitors are commonly connected to the voltage output end, and the other ends of the second filter capacitors are grounded.
In an alternative embodiment, the power supply system further includes a second power supply device, where 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 alternative embodiment, 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.
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 equipment, the first power supply device comprises a boosting rectifier circuit and a voltage stabilizing circuit, the input end of the boosting rectifier 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 rectifier 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 this embodiment, the first power supply device may be used to supply power to the control device, and the mutual inductance power taking device may be used to perform strong current isolation, so as to improve the power supply safety of the power supply system.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or examples of the present invention, the drawings that are required to be used in the embodiments or examples of the present invention will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained from those shown in the drawings without inventive effort to those skilled in the art.
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 diagram of a power supply system according to an embodiment of the invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
As shown in fig. 1-2, 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 be used for supplying power to other products, which is not limited in this embodiment.
Specifically, as shown in fig. 1-2, the power supply system includes a control device 10, where the control device 10 is a control center of an intelligent home product, and is used for controlling the intelligent home product to implement a corresponding function, in this embodiment, the control device 10 has a voltage input end, which is a voltage connection port of the control device 10, that is, the power supply system may provide an operating voltage to the control device 10 through the voltage input end, so that the control device 10 can work normally.
Further, the power supply system further includes a mutual inductance power taking device 20 and a first power supply device 30, an input end of the mutual inductance power taking device 20 is connected with an external power supply device, an input end of the first power supply device 30 is connected with 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 that the first power supply device 30 takes power from the mutual inductance power taking device 20, and then supplies power to the control device 10 through the voltage input end.
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.
Alternatively, 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 end.
Or the mutual inductance power taking device 20 is a current transformer, that is, the current transformer is used for converting a primary current with a larger value into a secondary current with a smaller value through a certain transformation ratio, so as to transmit the secondary current to the first power supply device 30, and power is supplied to the control device 10 through the first power supply device 30. In this way, the mutual inductance power taking device 20 can isolate the power supply current of the first power supply device 30 from the strong current, so that the threat of the strong current to the safety of the user is avoided. The voltage transformer is larger than the current transformer in size and needs to be directly connected to the two ends of the zero and the fire wire of the external power supply equipment in a bridging mode, and then potential hazards of electric shock can be caused. In this embodiment, the mutual inductance power taking device 20 may be a current transformer.
It will be appreciated that the transformation ratio of the current transformer may be set according to the performance of the current transformer, and is not limited herein.
In an embodiment, since the current is output at the output end of the mutual inductance power taking device 20, in order to enable the voltage received by the boost rectifying circuit 31, that is, the boost rectifying circuit 31 includes a converting resistor R1 for converting the current value output by the output end of the mutual inductance power taking device 20 into a voltage value, two ends of the converting 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 converting 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 supply voltage, the supply voltage is obtained by converting the secondary current output by the mutual inductance power taking device 20, that is, the value of the supply voltage is smaller, at this time, the boost rectifying circuit 31 boosts and rectifies the supply voltage, and the boosted and rectified voltage is input 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 end, so as to ensure the normal operation of the control device 10. That is, in this embodiment, the first power supply device 30 may supply power to the control device 10, and no battery is needed for supplying power, thereby improving the service life of the battery.
Further, the mutual inductance electricity taking device 20 is further provided with a current detection end 23, 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 electricity taking device 20 through the current detection end 23.
Specifically, the boost rectifier 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 connected in parallel to the first output terminal 21 and the second output terminal 22. The first capacitor C1 is connected between the first output end 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 this embodiment, the resistors (R2 to R6) and the diodes (D1 to D5) are provided to form the boost rectifier circuit 31, so as to boost and rectify the voltage after the current conversion output by the mutual inductance power taking device 20.
In this embodiment, the anode and the cathode of the first diode D1 are input ends of the boost rectifying circuit 31, and the anode and the cathode of the fifth diode D5 are output ends of the boost rectifying circuit 31. Namely, the first output end 21 and the second output end 22 of the mutual inductance electricity 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 stabilizing circuit is formed by a triode Q1, a voltage stabilizing resistor R2 and a voltage stabilizing tube Z, so as to stabilize the voltage boosted and rectified by the boost rectifying circuit 31, so as to 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, where the first energy storage capacitor C6 and the second energy storage capacitor C7 are connected in series and are disposed between the voltage stabilizing tube Z and the voltage input end, one end of the first filter capacitor C8 is connected between the voltage stabilizing tube Z and the first energy storage capacitor C6, and the other end of the first filter capacitor C8 is connected with the voltage input end. The first filter capacitor C8 is configured to filter clutter in the stabilized working voltage, and the first energy storage capacitor C6 and the second energy storage capacitor C7 are configured to store electric quantity.
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 first power supply device 30 can be prevented from burning out by opening the protective tube 33 to disconnect the control device 10 from the first power supply device 30.
Optionally, the first power supply device 30 further includes a plurality of second filter capacitors C9, one ends of the second filter capacitors C9 are commonly connected to the voltage output terminal, and the other ends of the second filter capacitors C9 are grounded. The number of the second filter capacitors C9 is the same as the number of the power supply terminals set on the control device 10, that is, when the first power supply device 30 supplies power to each power supply terminal, the clutter in the working 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, where the second power supply device 40 includes a battery BATTRY, a field-effect transistor Q2, and a sixth diode D6, a gate G of the field-effect transistor Q2 is connected to a cathode of the fifth diode D5, a drain D of the field-effect transistor Q2 is connected to the voltage input terminal through the sixth diode D6, a source S of the field-effect transistor Q2 is connected to an anode of the battery BATTRY, and a cathode of the battery BATTRY is grounded. The field effect transistor Q2 is configured to connect or disconnect the battery BATTRY to the voltage input terminal, that is, if no current passes through the mutual inductance power-taking device 20, at this time, the field effect transistor Q2 is in a connected state, that is, the battery BATTRY generates an operating voltage, and the operating voltage flows from the positive electrode of the battery BATTRY through the field effect transistor Q2 and the sixth diode D6 in sequence, and then is transmitted to the voltage input terminal, so as to supply power to the control device 10.
Alternatively, if a current passes through the mutual inductance power supply device 20, the fet Q2 is in an off state, and the voltage of the battery BATTRY is lower than the voltage of the first power supply device 30, that is, the power is supplied to the control device 10 by the first power supply device 30. At this time, since the sixth diode D6 has unidirectional conduction, that is, 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 BATTRY through the sixth diode D6, that is, the sixth diode D6 is used to prevent the voltage from flowing back into the battery BATTRY.
Further, the control device 10 further includes an antenna circuit 11 and a crystal oscillator circuit 12, and specific circuits and functions of the antenna circuit 11 and the crystal oscillator circuit 12 are identical to those of the antenna circuit and the crystal oscillator circuit in the prior art, which are not described herein.
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, the input end of the mutual inductance power taking device 20 is connected to an external power supply, the input end of the first power supply device 30 is connected to the mutual inductance power taking device 20, and the 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 be used to supply power to the control device 10, and the mutual inductance power taking device may be used to perform strong current isolation, so as to improve the power supply safety of the power supply system.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent modifications made by the present description and accompanying drawings, or direct/indirect application in other relevant technical fields are included in the scope of the present invention.
Claims (7)
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 boosting rectifying circuit and a voltage stabilizing circuit, wherein the input end of the boosting 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 boosting 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;
The boost rectifying circuit comprises a fifth diode, and the anode and the cathode of the fifth diode are the output ends of the boost rectifying circuit;
The voltage stabilizing circuit comprises a triode, a voltage stabilizing resistor and a voltage stabilizing tube, wherein the collector electrode of the triode is connected with the cathode of the fifth diode, the emitter electrode of the triode is connected with the voltage input end, the base electrode of the triode is grounded through the voltage stabilizing tube, one end of the voltage stabilizing resistor is connected between the collector electrode of the triode and the cathode of the fifth diode, and the other end of the voltage stabilizing resistor is connected between the base electrode of the triode and the voltage stabilizing tube;
The power supply system further comprises a second power supply device, the second power supply device comprises a battery, a field effect tube and a sixth diode, the grid electrode of the field effect tube is connected with the cathode of the fifth diode, the drain electrode of the field effect tube is connected with the voltage input end through the sixth diode, the source electrode of the field effect tube is connected with the anode of the battery, and the cathode of the battery is grounded.
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, and the fifth diode is arranged in parallel to the first output end and the second output end; the boost rectifying circuit further comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first diode, a second diode, a third diode and a fourth diode which are arranged in parallel at 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 rectifying circuit further comprises 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.
4. The power supply system according to claim 1, wherein the voltage stabilizing 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 stabilizing tube and the voltage input end, one end of the first filter capacitor is connected between the voltage stabilizing tube and the first energy storage capacitor, and the other end of the first filter capacitor is connected with the voltage input end.
5. The power supply system of claim 4, wherein the first power supply device further comprises a fuse connected between the first filter capacitor and the voltage input.
6. The power supply system according to claim 5, wherein the first power supply device further comprises a plurality of second filter capacitors, one ends of the second filter capacitors are commonly connected to the voltage output terminal, and the other ends of the second filter capacitors are grounded.
7. The power supply system according to claim 1, wherein 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527031.8A CN111564981B (en) | 2020-06-10 | 2020-06-10 | Power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527031.8A CN111564981B (en) | 2020-06-10 | 2020-06-10 | Power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111564981A CN111564981A (en) | 2020-08-21 |
| CN111564981B true CN111564981B (en) | 2024-08-02 |
Family
ID=72072618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010527031.8A Active CN111564981B (en) | 2020-06-10 | 2020-06-10 | Power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111564981B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN212278139U (en) * | 2020-06-10 | 2021-01-01 | 深圳酷宅科技有限公司 | Power supply system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751754B (en) * | 2012-06-28 | 2014-07-30 | 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 |
| CN107589349B (en) * | 2017-10-24 | 2019-11-08 | 国家电网公司 | High voltage induction electricity getting system |
| CN107846132A (en) * | 2017-11-23 | 2018-03-27 | 广州金升阳科技有限公司 | A kind of 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 |
-
2020
- 2020-06-10 CN CN202010527031.8A patent/CN111564981B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN212278139U (en) * | 2020-06-10 | 2021-01-01 | 深圳酷宅科技有限公司 | Power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111564981A (en) | 2020-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106535390B (en) | Constant-current driving power supply and display equipment | |
| CN207926438U (en) | DC power supply | |
| CN111564981B (en) | Power supply system | |
| CN113746065A (en) | Undervoltage and overvoltage protection circuit and switching power supply | |
| CN212278139U (en) | Power supply system | |
| CN104953863A (en) | Switching power circuit for power supply of three-phase electric energy meter | |
| CN115967258B (en) | Power supply circuit, power supply system and electronic device | |
| CN107332435B (en) | Power supply circuit of pulse width modulation chip and switching power supply | |
| CN211508929U (en) | Power supply control circuit | |
| CN212935793U (en) | Isolated power supply circuit | |
| CN107425741B (en) | AC-DC conversion circuit with low-voltage protection | |
| CN220896525U (en) | LED switch power supply with over-temperature protection function | |
| CN217388546U (en) | Isolating switch power supply circuit | |
| CN217063555U (en) | Switch power supply with overvoltage protection | |
| CN215186489U (en) | Switching power supply circuit and multi-stage output switching power supply | |
| CN220915170U (en) | Parallel voltage stabilizing circuit and power module | |
| CN118523604B (en) | Flyback switching power supply circuit, power supply and electric energy meter | |
| CN209881667U (en) | Switching power supply circuit for preventing BRO restart | |
| CN214069812U (en) | Quick charging circuit | |
| CN220291658U (en) | Passive input protection circuit | |
| CN219304707U (en) | Output regulating circuit | |
| CN221669749U (en) | Power supply circuit and power supply module | |
| CN220935020U (en) | Power output control circuit, switching power supply and electronic system | |
| CN210016416U (en) | Intelligent power supply module | |
| CN114336887B (en) | Power supply circuit with low cost and high reliability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |