CN217693073U - Starting circuit and energy storage equipment - Google Patents
Starting circuit and energy storage equipment Download PDFInfo
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- CN217693073U CN217693073U CN202220747525.1U CN202220747525U CN217693073U CN 217693073 U CN217693073 U CN 217693073U CN 202220747525 U CN202220747525 U CN 202220747525U CN 217693073 U CN217693073 U CN 217693073U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 58
- 230000009466 transformation Effects 0.000 claims abstract description 39
- 239000003990 capacitor Substances 0.000 claims description 21
- 230000001131 transforming effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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Abstract
The utility model discloses a starting circuit and energy storage equipment, starting circuit includes: the voltage transformation circuit is used for converting the output voltage of the power supply to obtain the power supply voltage and outputting the power supply voltage; the switch circuit is connected with the power supply and the voltage transformation circuit and is used for receiving the control signal and switching on and off the connection between the voltage transformation circuit and the power supply according to the control signal; the conversion circuit is connected with the power supply and used for converting the output voltage to obtain a working voltage and outputting the working voltage; the switching circuit is connected with the conversion circuit and the transformation circuit and used for sending a disconnection signal to the conversion circuit to indicate the conversion circuit to stop outputting the working voltage when receiving the power supply voltage; and the control circuit is connected with the voltage transformation circuit, the conversion circuit and the switch circuit and is used for outputting a control signal when receiving the working voltage or the power supply voltage. The utility model discloses saved the power supply who additionally supplies power for control circuit to can automatic switch-over vary voltage circuit be the control circuit power supply behind vary voltage circuit output power supply voltage.
Description
Technical Field
The application relates to the field of circuit starting, in particular to a starting circuit and energy storage equipment.
Background
In an existing photovoltaic power supply system, a photovoltaic panel in a photovoltaic module starts to output electric energy after irradiation. In the starting process of a control circuit in the photovoltaic module, power needs to be supplied through an independent power supply, so that after the control circuit is started, the control circuit controls the switching-on of the switching circuit, and the electric energy of the photovoltaic panel is output to the voltage transformation circuit to be subjected to voltage conversion and then is output.
However, an additional auxiliary power supply is required to be used as a starting power supply in the starting process of the control circuit in the photovoltaic power supply system, and when the flyback circuit is adopted in the photovoltaic power supply system, the auxiliary power supply of the control circuit needs to be turned off after the flyback circuit is started, so that the circuit design is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main aim at provides a starting circuit and energy storage equipment aims at simplifying circuit design, saves the power supply who additionally supplies power for control circuit to can the automatic switch-over vary voltage circuit supply power for control circuit after vary voltage circuit output supply voltage.
In a first aspect, an embodiment of the present invention provides a starting circuit, including:
the voltage transformation circuit is used for performing voltage transformation on the output voltage of the power supply to obtain at least one power supply voltage and outputting the power supply voltage through a voltage transformation output end of the voltage transformation circuit;
the switching circuit is connected with the power supply and the voltage transformation circuit and used for receiving the control signal and switching on or off the connection between the voltage transformation circuit and the power supply according to the control signal;
the conversion circuit is connected with the power supply and used for performing voltage conversion on the output voltage of the power supply to obtain working voltage and outputting the working voltage through the output end of the conversion circuit;
the switching circuit is respectively connected with the conversion circuit and the transformation circuit and used for sending a disconnection signal to the conversion circuit when receiving the power supply voltage output by the transformation output end, wherein the disconnection signal is used for indicating the conversion circuit to stop outputting the working voltage;
and the control circuit is respectively connected with the voltage transformation circuit, the conversion circuit and the switch circuit and is used for outputting a control signal to the switch circuit when receiving the working voltage or the power supply voltage.
In some embodiments, the conversion circuit includes a first switch tube, a first voltage division branch, a second voltage division branch, and a first bias resistor;
the power supply is connected with the input end of the first switch tube through the first voltage division branch and connected with the control end of the first switch tube through the second voltage division branch, the switching circuit is connected with the control end of the first switch tube, the control circuit is connected with the output end of the first switch tube, and the first bias resistor is connected between the control end and the output end of the first switch tube.
In some embodiments, the switching circuit further includes a zener diode, an input terminal of the zener diode is grounded, and an output terminal of the zener diode is connected to the control terminal of the first switching tube.
In some embodiments, the switching circuit includes a second switching tube, a second bias resistor, and a third bias resistor;
the input end of the second switch tube is connected with the control end of the first switch tube, the output end of the second switch tube is grounded, the control end of the second switch tube is connected with the voltage transformation output end through a second bias resistor, and a third bias resistor is connected between the control end and the output end of the second switch tube.
In some embodiments, the conversion circuit further includes at least one first slow-start capacitor, wherein a positive electrode of each first slow-start capacitor is connected to the output terminal of the first switch tube, and a negative electrode of each first slow-start capacitor is grounded.
In some embodiments, the startup circuit further comprises a current limiting circuit;
the current limiting circuit is respectively connected with the power supply, the switching circuit and the conversion circuit, and is used for limiting the current output by the power supply to the switching circuit and the conversion circuit and disconnecting the power supply, the switching circuit and the conversion circuit when the output current of the power supply is larger than a preset value.
In some embodiments, the current limiting circuit includes a thermistor and a fuse;
the first end of the thermistor is connected with the power supply, and the second end of the thermistor is connected with the first end of the fuse;
the second end of the fuse is connected with the output end of the current limiting circuit.
In some embodiments, the start-up circuit further comprises:
the input end of the anti-reversion circuit is connected with the output end of the current limiting circuit, the output end of the anti-reversion circuit is connected with the switch circuit and the conversion circuit, and the anti-reversion circuit is used for conducting voltage or current output from the power supply to the switch circuit and the conversion circuit in a single direction;
and the slow-start unit is connected with the anti-reverse circuit, the switch circuit and the conversion circuit and is used for delaying the voltage or current flowing into the switch circuit and the conversion circuit.
In some embodiments, the slow-start unit includes at least one second slow-start capacitor, wherein a positive electrode of each second slow-start capacitor is connected to the output terminal of the anti-reverse circuit, and a negative electrode of each second slow-start capacitor is grounded.
In a second aspect, the embodiment of the present invention further provides an energy storage device, including:
the starting circuit is connected with a power supply and is the starting circuit;
and the energy storage battery is connected to the starting circuit, and the starting circuit outputs power supply voltage to the energy storage battery.
Compared with the prior art, the utility model provides a starting circuit and energy storage equipment through the setting with the converting circuit that power supply is connected and with the switching circuit who is connected with converting circuit and vary voltage circuit, realized power supply to control circuit output operating voltage, and vary voltage circuit exports the switching of two kinds of power supply modes of supply voltage to control circuit, thereby simplified circuit design, saved the power supply who additionally supplies power for control circuit, and can the automatic switch vary voltage circuit supply power for control circuit after vary voltage circuit output supply voltage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic diagram of a module structure of a starting circuit provided by the present invention;
fig. 2 is a schematic circuit diagram of a conversion circuit of the starting circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a switching circuit and a conversion circuit of a start circuit according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a starting circuit including a current limiting circuit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a current limiting circuit, an anti-reverse circuit, and a slow-start unit of a start circuit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a module structure of the energy storage device provided by the present invention;
reference numerals:
1. an energy storage device; 10. a start-up circuit; 11. a voltage transformation circuit; 12. a switching circuit; 13. a control circuit; 14. a conversion circuit; 141. a first voltage division branch; 142. a second voltage division branch; 15. a switching circuit; 16. a current limiting circuit; 17. an anti-reverse circuit; 18. a slow-up unit; 20. A power supply; 30. an energy storage battery; c1, a first slow-start capacitor; c2, a second slow-start capacitor; d1, a voltage stabilizing diode; d2, an anti-reverse diode; f1, a fuse; q1, a first switch tube; q2 and a second switching tube; r1, a first bias resistor; r2 and a second bias resistor; r3, a third bias resistor; r4, a thermistor; v T And a supply voltage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In the following, some embodiments of the present invention will be described in detail with reference to the accompanying drawings, and features in the following examples and embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic diagram of a module structure of a starting circuit according to the present invention.
As shown in fig. 1, the start-up circuit 10 includes a voltage transformation circuit 11, a switching circuit 12, a conversion circuit 14, a switching circuit 15, and a control circuit 13. The transformer circuit 11 is used for converting the output voltage of the power supply 20 into at least one supply voltage V T And outputs the supply voltage V through the transformation output end of the transformation circuit 11 T . The switch circuit 12 is connected to the power supply 20 and the transformer circuit 11, and is configured to receive the control signal and turn on or off the connection between the transformer circuit 11 and the power supply 20 according to the control signal. The converting circuit 14 is connected to the power supply 20, and is configured to perform voltage conversion on the output voltage of the power supply 20 to obtain a working voltage, and output the working voltage through an output end of the converting circuit 14. A switching circuit 15 connected to the converting circuit 14 and the transforming circuit 11 respectively for receiving the supply voltage V output from the transforming output terminal T At this time, a disconnection signal is sent to the conversion circuit 14, and the disconnection signal is used to instruct the conversion circuit 14 to stop outputting the operating voltage. The control circuit 13 is respectively connected with the transformation circuit 11, the conversion circuit 14 and the switch circuit 12, and is used for receiving the working voltage or the supply voltage V T Then, a control signal is output to the switching circuit 12.
Specifically, the utility model provides a starting circuit 10 can be applied to the energy storage equipment who is connected with power supply 20, and above-mentioned power supply 20 can be power generation facility such as photovoltaic panel, aerogenerator, or tidal generator.
In some embodiments, the transforming circuit 11 is further configured to convert the output voltage of the power supply 20 into at least one power supply voltage V T The stored energy voltage is outputted to the switching circuit 15 and the control circuit 13 through the transforming output terminal of the transforming circuit 11 T And outputs the energy storage voltage to the preset energy storage battery 30 to charge the preset energy storage battery 30.
As shown in fig. 2, in some embodiments, the converting circuit 14 includes a first switch Q1, a first voltage dividing branch 141, a second voltage dividing branch 142, and a first bias resistor R1, wherein the power supply 20 is connected to the input terminal of the first switch Q1 through the first voltage dividing branch 141 and is connected to the control terminal of the first switch Q1 through the second voltage dividing branch 142, the switching circuit 15 is connected to the control terminal of the first switch Q1, the control circuit 13 is connected to the output terminal of the first switch Q1, and the first bias resistor R1 is connected between the control terminal and the output terminal of the first switch Q1.
It should be understood that the first voltage dividing branch 141 and the second voltage dividing branch 142 are used for performing voltage dividing conversion on the output voltage of the power supply 20 in cooperation with each other to obtain a working voltage corresponding to the control circuit 13, the output end of the first switch tube Q1 is connected to the control circuit 13 as the output end of the conversion circuit 14, and the switching circuit 15 is connected to the control end of the first switch tube Q1 and is used for turning on or off the conversion circuit 14 to turn on or off the connection path between the starting circuit 10 and the control circuit 13.
Specifically, when the switching circuit 15 inputs an off signal to the control terminal of the first switching tube Q1, the input terminal and the output terminal of the first switching tube Q1 are cut off, and the conversion circuit 14 is turned off and stops outputting the operating voltage to the control circuit 13.
Specifically, in the present embodiment, the operation principle of the conversion circuit 14 is described by taking the first switching tube Q1 as an NPN type triode and the turn-off signal as a low level signal as an example:
the switching circuit 15 is connected to the base of the first switch tube Q1, and the power supply 20 is connected to the collector of the first switch tube Q1 through a first voltage dividing branch 141 and connected to the emitter of the first switch tube Q1 through a second voltage dividing branch 142. When the switching circuit 15 does not input the turn-off signal to the base of the first switch tube Q1, the power supply voltage V output by the power supply 20 T The base voltage of the first switching tube Q1 is increased through the second voltage dividing branch 142, the collector and the emitter of the first switching tube Q1 are conducted, the converting circuit 14 is turned on, and the first voltage dividing branch 141 and the second voltage dividing branch 142 perform voltage dividing conversion on the output voltage of the power supply 20 to obtain a working voltage, and the working voltage is output from the emitter of the first switching tube Q1 to the control circuit 13. When the switching circuit 15 inputs a low-level off signal to the base of the first switching tube Q1, the base voltage of the first switching tube Q1 decreases, the collector and emitter of the first switching tube Q1 are cut off, and the switching circuit converts the currentThe line 14 is closed and stops outputting the operating voltage to the control circuit 13.
Through the cooperation of the first voltage dividing branch 141, the second voltage dividing branch 142, the first switch tube Q1 and the first bias resistor R1, the converting circuit 14 performs voltage dividing conversion on the output voltage of the power supply 20 to obtain a working voltage, and outputs the working voltage to the control circuit 13 through the output end of the first switch tube Q1. Meanwhile, a first bias resistor R1 is arranged between the control end and the output end of the first switching tube Q1, so as to ensure reliable conduction of the first switching tube Q1.
In some embodiments, the converting circuit 14 further includes a zener diode D1, an input terminal of the zener diode D1 is grounded, and an output terminal of the zener diode D1 is connected to the control terminal of the first switching tube Q1 for stabilizing the control terminal voltage of the first switching tube Q1.
In some embodiments, the conversion circuit 14 further includes at least one first slow-start capacitor C1, wherein an anode of each first slow-start capacitor C1 is connected to the output end of the first switch Q1, and a cathode of each first slow-start capacitor C1 is grounded, so as to delay a voltage change of the operating voltage output from the conversion circuit 14 to the control circuit 13, and avoid damage to the control circuit 13 due to an abrupt change of the output operating voltage.
As shown in fig. 3, in some embodiments, the switching circuit 15 includes a second switch Q2, a second bias resistor R2, and a third bias resistor R3, wherein an input terminal of the second switch Q2 is connected to the control terminal of the first switch Q1, an output terminal of the second switch Q2 is grounded, the control terminal of the second switch Q2 is connected to the transformer output terminal of the transformer circuit 11 through the second bias resistor R2, and the third bias resistor R3 is connected between the control terminal and the output terminal of the second switch Q2.
Specifically, in this embodiment, the working principle of the switching circuit 15 is described by taking the second switching transistor Q2 as an NPN transistor as an example:
the transformation output end of the transformation circuit 11 is connected with the base of the second switch tube Q2 through the second bias resistor R2, the collector of the second switch tube Q2 is connected with the control end of the first switch tube Q1, the emitter of the second switch tube Q2 is grounded, and the third bias resistor R3 is connected between the base and the emitter of the second switching tube Q2. When the voltage transformation output end outputs a supply voltage V to the base electrode of the second switching tube Q2 T When the base of the second switching tube Q2 is at a high level, the emitter and the collector of the second switching tube Q2 are turned on, the voltage at the control end of the first switching tube Q1 is pulled low, the switching circuit 14 is turned off, and the output of the working voltage to the control circuit 13 is stopped.
It should be understood that the conversion circuit 14 receives the supply voltage V output by the transformer output terminal T When the voltage of the first switch tube Q1 is lower than the first predetermined voltage, the control terminal of the first switch tube Q1 is connected to ground, so as to send a low-level off signal to the converting circuit 14 to instruct the converting circuit 14 to stop outputting the operating voltage. Meanwhile, a second bias resistor R2 is arranged between the voltage transformation output end and the control end of the second switch tube Q2, and a third bias resistor R3 is arranged between the control end and the output end of the second switch tube Q2, so that reliable conduction of the second switch tube Q2 is ensured.
As shown in fig. 4, in some embodiments, the startup circuit 10 also includes a current limiting circuit 16. The current limiting circuit 16 is respectively connected to the power supply 20, the switching circuit 12 and the converting circuit 14, and the current limiting circuit 16 is configured to limit the current output from the power supply 20 to the switching circuit 12 and the converting circuit 14, and disconnect the power supply 20, the switching circuit 12 and the converting circuit 14 when the output current of the power supply 20 is greater than a preset value.
As shown in fig. 5, in some embodiments, the current limiting circuit 16 includes a thermistor R4 and a fuse F1, wherein a first terminal of the thermistor R4 is connected to the power supply 20, a second terminal of the thermistor R4 is connected to a first terminal of the fuse F1, and a second terminal of the fuse F1 is connected to an output terminal of the current limiting circuit 16.
Specifically, the resistance of the thermistor R4 is inversely proportional to the temperature of the thermistor R4, and when the power supply 20 inputs the supply voltage V to the switching circuit 12, the transforming circuit 11, and the converting circuit 14 T When the current is flowing through the thermistor, the thermistor R4 is in a high resistance state, so that the current flowing through the thermistor R4 is reduced, and the switching circuit 12, the transforming circuit 11 and the converting circuit 14 are prevented from being damaged due to overlarge input current change amountThe resistor R4 increases the temperature of the thermistor R4, and the resistance value is reduced accordingly, so that the current input into the switch circuit 12, the transformation circuit 11 and the conversion circuit 14 is slowly increased, and the slow start of the transformation circuit 11 and the conversion circuit 14 is realized.
Specifically, the fuse F1 has a corresponding preset fusing value, and when the output current of the power supply 20 is greater than the corresponding preset fusing value, the fuse F1 fuses, so as to disconnect the power supply path from the power supply 20 to the switching circuit 12, the transforming circuit 11 and the converting circuit 14, and avoid damage to the switching circuit 12, the transforming circuit 11 and the converting circuit 14 due to an excessive output current.
In some embodiments, the starting circuit 10 further includes an anti-reverse circuit 17 and a slow start unit 18, wherein an input terminal of the anti-reverse circuit 17 is connected to an output terminal of the current limiting circuit 16, an output terminal of the anti-reverse circuit 17 is connected to the switching circuit 12 and the converting circuit 14, the anti-reverse circuit 17 is used for unidirectionally conducting the voltage or the current output from the power supply 20 to the switching circuit 12 and the converting circuit 14, and the slow start unit 18 is connected to the anti-reverse circuit 17, the switching circuit 12 and the converting circuit 14 and is used for delaying the voltage or the current flowing into the switching circuit 12 and the converting circuit 14.
Specifically, the slow-start unit 18 includes at least one second slow-start capacitor C2, wherein an anode of each second slow-start capacitor C2 is connected to the output end of the anti-reverse circuit 17, a cathode of each second slow-start capacitor C2 is grounded, and the second slow-start capacitor C2 is used for supplying the supply voltage V output by the power supply 20 T Absorption filtering is performed to delay the rise and fall of the voltage or current flowing in the switching circuit 12 and the switching circuit 14, thereby realizing the slow start of the start circuit 10.
Specifically, the reverse blocking prevention circuit 17 includes a reverse blocking prevention diode D2, wherein an input end of the reverse blocking prevention diode D2 is connected to an output end of the current limiting circuit 16, an output end of the reverse blocking prevention diode D2 is connected to the switch circuit 12 and the conversion circuit 14, and the reverse blocking prevention diode D2 is used for conducting the voltage or current output from the power supply 20 to the switch circuit 12 and the conversion circuit 14 in a single direction, so as to prevent the current from flowing backwards.
Please refer to fig. 6, fig. 6 is a schematic diagram of a module structure of the energy storage device according to the present invention.
As shown in fig. 6, the embodiment of the present invention further provides an energy storage device, which includes a starting circuit 10 and an energy storage battery 30, wherein the starting circuit 10 is connected to the power supply 20, the starting circuit 10 is the starting circuit 10 as shown above, the energy storage battery 30 is connected to the starting circuit 10, and the starting circuit outputs a supply voltage V to the energy storage battery 30 T 。
To sum up, the embodiment of the utility model provides a through setting up converting circuit 14 that is connected with power supply 20 and switching circuit 15 of being connected with converting circuit 14 and vary voltage circuit 11, realized that power supply 20 exports operating voltage to control circuit 13 and vary voltage circuit 11 exports supply voltage V to control circuit 13 T The two power supply modes are switched, so that the circuit design is simplified, the power supply source 20 for additionally supplying power to the control circuit 13 is saved, and the transformation circuit 11 can be automatically switched to supply power to the control circuit 13 after the transformation circuit 11 outputs the power supply voltage.
The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A start-up circuit, comprising:
the voltage transformation circuit is used for performing voltage transformation on the output voltage of the power supply to obtain at least one power supply voltage and outputting the power supply voltage through a voltage transformation output end of the voltage transformation circuit;
the switch circuit is connected with the power supply and the transformation circuit and used for receiving a control signal and switching on or off the connection between the transformation circuit and the power supply according to the control signal;
the conversion circuit is connected with the power supply and is used for performing voltage conversion on the output voltage of the power supply to obtain working voltage and outputting the working voltage through the output end of the conversion circuit;
the switching circuit is respectively connected with the conversion circuit and the transformation circuit and is used for sending a disconnection signal to the conversion circuit when receiving the power supply voltage output by the transformation output end, and the disconnection signal is used for indicating the conversion circuit to stop outputting the working voltage;
and the control circuit is respectively connected with the voltage transformation circuit, the conversion circuit and the switch circuit and is used for outputting the control signal to the switch circuit when receiving the working voltage or the power supply voltage.
2. The starting circuit of claim 1, wherein the converting circuit comprises a first switch tube, a first voltage-dividing branch, a second voltage-dividing branch and a first bias resistor;
the power supply is connected with the input end of the first switch tube through the first voltage division branch, the second voltage division branch is connected with the control end of the first switch tube, the switching circuit is connected with the control end of the first switch tube, the control circuit is connected with the output end of the first switch tube, and the first bias resistor is connected between the control end and the output end of the first switch tube.
3. The start-up circuit of claim 2, wherein the switching circuit further comprises a zener diode, an input terminal of the zener diode is grounded, and an output terminal of the zener diode is connected to the control terminal of the first switching tube.
4. The starting circuit of claim 2, wherein the switching circuit comprises a second switching tube, a second bias resistor and a third bias resistor;
the input end of the second switch tube is connected with the control end of the first switch tube, the output end of the second switch tube is grounded, the control end of the second switch tube is connected with the voltage transformation output end through the second bias resistor, and the third bias resistor is connected between the control end and the output end of the second switch tube.
5. The power up circuit of claim 2, wherein the switching circuit further comprises at least one first slow-start capacitor, wherein an anode of each first slow-start capacitor is connected to the output terminal of the first switch tube, and a cathode of each first slow-start capacitor is grounded.
6. The startup circuit of any one of claims 1 to 5, further comprising a current limiting circuit;
the current limiting circuit is respectively connected with a power supply, the switch circuit and the conversion circuit, and is used for limiting the current output by the power supply to the switch circuit and the conversion circuit and disconnecting the power supply, the switch circuit and the conversion circuit when the output current of the power supply is larger than a preset value.
7. The startup circuit of claim 6, wherein the current limiting circuit comprises a thermistor and a fuse;
the first end of the thermistor is connected with the power supply, and the second end of the thermistor is connected with the first end of the fuse;
and the second end of the fuse is connected with the output end of the current limiting circuit.
8. The power up circuit of claim 6, further comprising:
the input end of the anti-reverse circuit is connected with the output end of the current limiting circuit, the output end of the anti-reverse circuit is connected with the switch circuit and the conversion circuit, and the anti-reverse circuit is used for conducting voltage or current output from the power supply to the switch circuit and the conversion circuit in a single direction;
and the slow-start unit is connected with the anti-reverse circuit, the switch circuit and the conversion circuit and is used for delaying the voltage or current flowing into the switch circuit and the conversion circuit.
9. The startup circuit according to claim 8, wherein the ramp-up unit comprises at least one second ramp-up capacitor, wherein a positive electrode of each second ramp-up capacitor is connected to the output terminal of the anti-reverse circuit, and a negative electrode of each second ramp-up capacitor is grounded.
10. An energy storage device, comprising:
a start-up circuit connected to the power supply, the start-up circuit being as claimed in any one of claims 1 to 9;
and the energy storage battery is connected to the starting circuit, and the starting circuit outputs the power supply voltage to the energy storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220747525.1U CN217693073U (en) | 2022-04-01 | 2022-04-01 | Starting circuit and energy storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220747525.1U CN217693073U (en) | 2022-04-01 | 2022-04-01 | Starting circuit and energy storage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217693073U true CN217693073U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220747525.1U Active CN217693073U (en) | 2022-04-01 | 2022-04-01 | Starting circuit and energy storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217693073U (en) |
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2022
- 2022-04-01 CN CN202220747525.1U patent/CN217693073U/en active Active
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