CN208094423U - A kind of low-pressure high-power Switching Power Supply - Google Patents
A kind of low-pressure high-power Switching Power Supply Download PDFInfo
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- CN208094423U CN208094423U CN201820245231.2U CN201820245231U CN208094423U CN 208094423 U CN208094423 U CN 208094423U CN 201820245231 U CN201820245231 U CN 201820245231U CN 208094423 U CN208094423 U CN 208094423U
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- power circuit
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Abstract
The utility model discloses a kind of low-pressure high-power Switching Power Supplies, including：Accumulator, auxiliary power circuit and main force's power circuit；Wherein, accumulator is connect with auxiliary power circuit, main force's power circuit respectively；Auxiliary power circuit is connect with main force's power circuit；Auxiliary power circuit is provided with the first control chip；Main force's power circuit is provided with the second control chip；The output end of first control chip is connect with the Enable Pin of the second control chip, input terminal respectively.The low-pressure high-power Switching Power Supply of the utility model is suitable for large-power occasions, can meet the different demands of user.
Description
Technical field
The utility model is related to electronic circuit technology field more particularly to a kind of low-pressure high-power Switching Power Supplies.
Background technology
Lead-acid Battery Technology is ripe, is widely used, and monomer voltage is relatively low, usually 2V or so, and most of low pressure
The operating voltage of direct-flow electricity utilization apparatus is in 5V~12V.Common chip boost approach is only applicable to small-power field currently on the market
It closes and (is less than 1W), cannot be satisfied the power requirement of bigger.Therefore, there is an urgent need for a kind of Switching Power Supplies of low-pressure high-power, meet different
Demand under occasion.
Invention content
Technical problem to be solved by the utility model is to provide a kind of low-pressure high-power Switching Power Supplies, are suitable for big work(
Rate occasion can meet the different demands of user.
In order to solve the above technical problems, the utility model embodiment provides a kind of low-pressure high-power Switching Power Supply, including：It stores
Battery, auxiliary power circuit and main force's power circuit；
Wherein, the accumulator is connect with the auxiliary power circuit, main force's power circuit respectively；The accessory power supply electricity
Road is connect with main force's power circuit；
The auxiliary power circuit is provided with the first control chip；Main force's power circuit is provided with the second control core
Piece；
The output end of the first control chip is connect with the Enable Pin of the second control chip, input terminal respectively；
The first control chip is the chip of model TPS61200；
The second control chip is the chip of model TPS55340.
Further, main force's power circuit further includes output circuit；
The second control chip is connect with the output circuit.
Further, the output circuit includes：Input port, the first diode, the second diode, metal-oxide-semiconductor, triode
And output port；
Wherein, the positive input of first diode is connect with the input port, reverse input end and metal-oxide-semiconductor
Drain electrode connection；
The grid of the metal-oxide-semiconductor is connect with the collector of the triode, the source electrode of the metal-oxide-semiconductor and the output port
Connection；
The emitter of the triode is connect with the positive input of second diode, the base stage of the triode with
The accumulator connection；
The reverse input end of second diode is connect with the output port.
Further, the output circuit further includes：First capacitance, the second capacitance and third capacitance；
First capacitance, the second capacitance, third capacitance are connected in parallel with each other；
First capacitance connection is between the drain electrode and the emitter of the triode of the metal-oxide-semiconductor.
Further, the accumulator is lead-acid accumulator, and output voltage range is 1.5~2.8V.
Further, the output power of main force's power circuit is 1~4W.
The low-pressure high-power Switching Power Supply that the utility model embodiment provides is suitable for lead-acid accumulator, by assisting electricity
Source circuit provides low current and gives main force's power circuit, realizes power boost, exports the power of 1~4W, not only meets the need of user
It asks, and simple in structure, reduces requirement on devices and production cost.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of embodiment of low-pressure high-power Switching Power Supply provided by the utility model；
Fig. 2 is a kind of electrical block diagram of embodiment of low-pressure high-power Switching Power Supply provided by the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
Referring to Fig. 1, a kind of structural schematic diagram of embodiment of low-pressure high-power Switching Power Supply provided by the utility model.Such as
Shown in Fig. 1, which includes：Accumulator 1, auxiliary power circuit 2 and main force's power circuit 3.Wherein, it stores
Battery 1 is connect with auxiliary power circuit 2, main force's power circuit 3 respectively；Auxiliary power circuit 2 is connect with main force power circuit 3.
Auxiliary power circuit 2 is provided with the first control chip；Main force's power circuit 3 is provided with the second control chip.First
The output end for controlling chip is connect with the Enable Pin of the second control chip, input terminal respectively.
In the present embodiment, main force's power circuit further includes output circuit；Second control chip is connect with output circuit.The
One control chip can be, but not limited to be model TPS61200 chip；Second control chip can be, but not limited to be model
The chip of TPS55340.
It is a kind of circuit structure of embodiment of low-pressure high-power Switching Power Supply provided by the utility model referring to Fig. 2, Fig. 2
Schematic diagram.As shown in Fig. 2, the first control chip is U1, the second control chip is U2, and output circuit includes：Input port, first
Diode, the second diode, metal-oxide-semiconductor, triode and output port；
Wherein, the positive input of the first diode D1 is connect with input port, the drain electrode of reverse input end and metal-oxide-semiconductor Q1
Connection；The grid of metal-oxide-semiconductor Q1 is connect with the collector of triode Q2, and the source electrode of metal-oxide-semiconductor Q1 is connect with output port；Triode Q2
Emitter connect with the positive input of the second diode D2, the base stage of triode Q2 is connect with accumulator；Second diode
The reverse input end of D2 is connect with output port.
In the citing of Fig. 2, output circuit further includes：First capacitance C5, the second capacitance and C6 third capacitances C7.First electricity
Hold C5, the second capacitance C6, third capacitance C7 to be connected in parallel with each other；First capacitance C5 is connected to drain electrode and the triode of metal-oxide-semiconductor Q1
Between the emitter of Q2.
The utility model works in such a way that auxiliary power circuit and main force's power circuit are combined, auxiliary power circuit
Startup and operating voltage are provided for the second control chip of main force's power circuit.The course of work is：After system electrification, accessory power supply
Circuit works first, and exports 5V operating voltages for the second control chip of main force's power circuit；Second control chip obtains work
It starts to work after making voltage, exports high current operating voltage.
In the present embodiment, accumulator is lead-acid accumulator, and output voltage range is 1.5~2.8V.
In the present embodiment, the boosting of auxiliary power circuit ranging from 5V~10V.The output power of main force's power circuit is
1~4W.
Therefore the low-pressure high-power Switching Power Supply that the utility model embodiment provides, it is suitable for lead-acid accumulator, leads to
Auxiliary power circuit offer low current is provided and gives main force's power circuit, power boost is realized, exports the power of 1~4W, not only meet
The demand of user, and it is simple in structure, reduce requirement on devices and production cost.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (6)
1. a kind of low-pressure high-power Switching Power Supply, which is characterized in that including：Accumulator, auxiliary power circuit and main force's power supply electricity
Road；
Wherein, the accumulator is connect with the auxiliary power circuit, main force's power circuit respectively；The auxiliary power circuit with
Main force's power circuit connection；
The auxiliary power circuit is provided with the first control chip；Main force's power circuit is provided with the second control chip；
The output end of the first control chip is connect with the Enable Pin of the second control chip, input terminal respectively；
The first control chip is the chip of model TPS61200；
The second control chip is the chip of model TPS55340.
2. low-pressure high-power Switching Power Supply according to claim 1, which is characterized in that main force's power circuit further includes
Output circuit；
The second control chip is connect with the output circuit.
3. low-pressure high-power Switching Power Supply according to claim 2, which is characterized in that the output circuit includes：Input
Port, the first diode, the second diode, metal-oxide-semiconductor, triode and output port；
Wherein, the positive input of first diode is connect with the input port, the drain electrode of reverse input end and metal-oxide-semiconductor
Connection；
The grid of the metal-oxide-semiconductor is connect with the collector of the triode, and the source electrode of the metal-oxide-semiconductor connects with the output port
It connects；
The emitter of the triode is connect with the positive input of second diode, the base stage of the triode with it is described
Accumulator connects；
The reverse input end of second diode is connect with the output port.
4. low-pressure high-power Switching Power Supply according to claim 3, which is characterized in that the output circuit further includes：The
One capacitance, the second capacitance and third capacitance；
First capacitance, the second capacitance, third capacitance are connected in parallel with each other；
First capacitance connection is between the drain electrode and the emitter of the triode of the metal-oxide-semiconductor.
5. low-pressure high-power Switching Power Supply according to any one of claims 1 to 4, which is characterized in that the accumulator is
Lead-acid accumulator, output voltage range are 1.5~2.8V.
6. low-pressure high-power Switching Power Supply according to any one of claims 1 to 4, which is characterized in that main force's power supply
The output power of circuit is 1~4W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820245231.2U CN208094423U (en) | 2018-02-09 | 2018-02-09 | A kind of low-pressure high-power Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820245231.2U CN208094423U (en) | 2018-02-09 | 2018-02-09 | A kind of low-pressure high-power Switching Power Supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208094423U true CN208094423U (en) | 2018-11-13 |
Family
ID=64064489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820245231.2U Active CN208094423U (en) | 2018-02-09 | 2018-02-09 | A kind of low-pressure high-power Switching Power Supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208094423U (en) |
-
2018
- 2018-02-09 CN CN201820245231.2U patent/CN208094423U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 314, Room 333 Jiufojian Road, Zhongxin Guangzhou Knowledge City, Guangzhou, Guangdong 510000 Patentee after: Guangdong Hanwei Information Technology Co.,Ltd. Address before: Room 314, Room 333 Jiufojian Road, Zhongxin Guangzhou Knowledge City, Guangzhou, Guangdong 510000 Patentee before: GUANGDONG HANWEI INTEGRATED TECHNOLOGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low voltage high power switching power supply Effective date of registration: 20220623 Granted publication date: 20181113 Pledgee: CITIC Bank Co.,Ltd. Guangzhou Branch Pledgor: Guangdong Hanwei Information Technology Co.,Ltd. Registration number: Y2022440000127 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |