CN204886692U - Vary voltage circuit - Google Patents
Vary voltage circuit Download PDFInfo
- Publication number
- CN204886692U CN204886692U CN201520643275.7U CN201520643275U CN204886692U CN 204886692 U CN204886692 U CN 204886692U CN 201520643275 U CN201520643275 U CN 201520643275U CN 204886692 U CN204886692 U CN 204886692U
- Authority
- CN
- China
- Prior art keywords
- pin
- triode
- electric capacity
- conversion chip
- voltage conversion
- 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
Abstract
The utility model discloses a vary voltage circuit, including power, switch, first triode, first electric capacity, voltage conversion chip, second triode, second electric capacity and inductance, first triode is connected to power one end linked switch, the other end, the switch with first electric capacity and voltage conversion chip are connected to the first triode other end, the other end of switch still is connected with the one end of second triode and second electric capacity, voltage conversion chip and inductance are connected to the other end of second triode, the inductance other end is connected the other end and the voltage output end of second electric capacity, the utility model has the advantages of circuit structure is simple, and stability is good, with low costs.
Description
Technical field
The utility model relates to circuit engineering field, particularly relates to a kind of transforming circuit.
Background technology
Existing transforming circuit, needing to carry out in the load of transformation step-down, drive circuit is relatively complicated, on market, product sold is all for load required voltage value, respectively adopt multichannel independently transforming circuit carry out the control of multiple-channel output voltage, more control element need be adopted, cause circuit structure complexity, not only cost of idleness but also take up room.
Utility model content
The purpose of this utility model is to provide a kind of transforming circuit for the deficiencies in the prior art, and this circuit structure is simple, and good stability, cost is low.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of transforming circuit, include power supply, switch, the first triode, the first electric capacity, voltage conversion chip, the second triode, the second electric capacity and inductance, described power supply one end connecting valve, the other end connect the first triode, described switch is connected the first electric capacity and voltage conversion chip with the described first triode other end, the other end of described switch is also connected with one end of the second triode and the second electric capacity, the other end of described second triode connects voltage conversion chip and inductance, and the described inductance other end connects the other end and the voltage output end of described second electric capacity.
Wherein, described voltage conversion chip is provided with a pin, No. two pin, No. three pin, No. four pin and No. five pin, a described pin is voltage input pin, described No. two pin are voltage output pin, described No. three pin are grounding pin, described No. four pin have been feedback regulation effect pin, and described No. five pin are for connecing low level pin.
Wherein, a described pin is connected with described first triode, described No. two pin are connected with described second triode and inductance, described No. three pin connect ground wire, described No. four pin are connected with described voltage output end, and described No. five pin are connected with described switch, the first electric capacity, the second triode and the second electric capacity.
Wherein, described ground wire is connected with described switch, the first electric capacity, voltage conversion chip, the second triode and the second electric capacity.
Wherein, the voltage of described power supply is 14V.
Wherein, described first triode is 1N5819 triode, and described second triode is 1N5819 triode.
Wherein, described first electric capacity is 100uF, and described second electric capacity is 330uF.
Wherein, described voltage conversion chip is LM2575-12 voltage conversion chip or LM2575-5 voltage conversion chip.
Wherein, described inductance is 330uH.
The beneficial effects of the utility model are: a kind of transforming circuit described in the utility model, include power supply, switch, first triode, first electric capacity, voltage conversion chip, second triode, second electric capacity and inductance, described power supply one end connecting valve, the other end connects the first triode, described switch is connected the first electric capacity and voltage conversion chip with the described first triode other end, the other end of described switch is also connected with one end of the second triode and the second electric capacity, the other end of described second triode connects voltage conversion chip and inductance, the described inductance other end connects the other end and the voltage output end of described second electric capacity, it is simple that the utility model has circuit structure, good stability, the advantage that cost is low.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the utility model below, but the embodiment in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete execution mode, the utility model is described.
As shown in Figure 1, a kind of transforming circuit, it is characterized in that: include power supply 1, switch 2, first triode 3, first electric capacity 4, voltage conversion chip 5, second triode 6, second electric capacity 7 and inductance 8, described power supply 1 one end connecting valve 2, the other end connects the first triode 3, described switch 2 is connected the first electric capacity 4 and voltage conversion chip 5 with described first triode 3 other end, the other end of described switch 2 is also connected with one end of the second triode 6 and the second electric capacity 7, the other end of described second triode 6 connects voltage conversion chip 6 and inductance 8, described inductance 8 other end connects the other end and the voltage output end 9 of described second electric capacity 7.
Further, described voltage conversion chip 5 is provided with a pin 51, No. two pin 52, No. three pin 53, No. four pin 54 and No. five pin 55, a described pin 51 is voltage input pin, described No. two pin (52) are voltage output pin, described No. three pin 53 are grounding pin, described No. four pin 54 have been feedback regulation effect pin, and described No. five pin 55 are for connecing low level pin.
Further, a described pin 51 is connected with described first triode 3, described No. two pin 52 are connected with described second triode 6 and inductance 8, described No. three pin 53 connect ground wire 10, described No. four pin 54 are connected with described voltage output end 9, and described No. five pin 55 are connected with described switch 2, first electric capacity 4, second triode 6 and the second electric capacity 7.
Further, described ground wire 10 is connected with described switch 2, first electric capacity 4, voltage conversion chip 5, second triode 6 and the second electric capacity 7.
Embodiment one, when the voltage of described power supply 1 is 14V, described first triode 3 is 1N5819 triode with described second triode 6, described first electric capacity 4 is 100uF, described second electric capacity 7 is 330uF, described voltage conversion chip 5 is LM2575-12 voltage conversion chip, described inductance 8 is 330uH, the voltage of described voltage output end 9 is 12V, wherein utilize the one-way conduction characteristic of the first triode 3 and the second triode 6 as power protection device, with anti-return or connect the damage that the problem such as anti-causes battery, and the first electric capacity 4 and the second electric capacity 7 and inductance 8 mainly strobe jointly.
Embodiment two, when the voltage of described power supply 1 is 14V, described first triode 3 is 1N5819 triode with described second triode 6, described first electric capacity 4 is 100uF, described second electric capacity 7 is 330uF, described voltage conversion chip 5 is LM2575-5 voltage conversion chip, described inductance 8 is 330uH, the voltage of described voltage output end 9 is 5V, wherein utilize the one-way conduction characteristic of the first triode 3 and the second triode 6 as power protection device, with anti-return or connect the damage that the problem such as anti-causes battery, and the first electric capacity 4 and the second electric capacity 7 and inductance 8 mainly strobe jointly.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (9)
1. a transforming circuit, it is characterized in that: include power supply (1), switch (2), first triode (3), first electric capacity (4), voltage conversion chip (5), second triode (6), second electric capacity (7) and inductance (8), described power supply (1) one end connecting valve (2), the other end connects the first triode (3), described switch (2) is connected the first electric capacity (4) and voltage conversion chip (5) with described first triode (3) other end, the other end of described switch (2) is also connected with one end of the second triode (6) and the second electric capacity (7), the other end of described second triode (6) connects voltage conversion chip (6) and inductance (8), described inductance (8) other end connects the other end and the voltage output end (9) of described second electric capacity (7).
2. a kind of transforming circuit according to claim 1, it is characterized in that: described voltage conversion chip (5) is provided with a pin (51), No. two pin (52), No. three pin (53), No. four pin (54) and No. five pin (55), a described pin (51) is voltage input pin, described No. two pin (52) are voltage output pin, described No. three pin (53) are grounding pin, described No. four pin (54) have been feedback regulation effect pin, and described No. five pin (55) are for connecing low level pin.
3. a kind of transforming circuit according to claim 2, it is characterized in that: a described pin (51) is connected with described first triode (3), described No. two pin (52) are connected with described second triode (6) and inductance (8), described No. three pin (53) connect ground wire (10), described No. four pin (54) are connected with described voltage output end (9), and described No. five pin (55) are connected with described switch (2), the first electric capacity (4), the second triode (6) and the second electric capacity (7).
4. a kind of transforming circuit according to claim 3, is characterized in that: described ground wire (10) is connected with described switch (2), the first electric capacity (4), voltage conversion chip (5), the second triode (6) and the second electric capacity (7).
5. a kind of transforming circuit according to claim 1, is characterized in that: the voltage of described power supply (1) is 14V.
6. a kind of transforming circuit according to claim 1, is characterized in that: described first triode (3) is 1N5819 triode, and described second triode (6) is 1N5819 triode.
7. a kind of transforming circuit according to claim 1, is characterized in that: described first electric capacity (4) is 100uF, and described second electric capacity (7) is 330uF.
8. a kind of transforming circuit according to claim 1, is characterized in that: described voltage conversion chip (5) is LM2575-12 voltage conversion chip or LM2575-5 voltage conversion chip.
9. a kind of transforming circuit according to claim 1, is characterized in that: described inductance (8) is 330uH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643275.7U CN204886692U (en) | 2015-08-25 | 2015-08-25 | Vary voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643275.7U CN204886692U (en) | 2015-08-25 | 2015-08-25 | Vary voltage circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886692U true CN204886692U (en) | 2015-12-16 |
Family
ID=54831012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520643275.7U Active CN204886692U (en) | 2015-08-25 | 2015-08-25 | Vary voltage circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886692U (en) |
-
2015
- 2015-08-25 CN CN201520643275.7U patent/CN204886692U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204993053U (en) | Isolation power of multiplexed output | |
| CN206673848U (en) | A kind of positive-negative power circuit arrangement | |
| CN204886692U (en) | Vary voltage circuit | |
| CN203967975U (en) | Lead-acid battery integrated circuit | |
| CN106134501B (en) | A kind of multichannel output module power supply is lower electric sequential control circuit preferentially | |
| CN204906179U (en) | Novel vary voltage circuit | |
| CN109545178A (en) | A kind of double control buzzer drive circuit | |
| CN201937238U (en) | Input undervoltage protection circuit | |
| CN202840989U (en) | Power supply circuit | |
| CN202975965U (en) | Direct current voltage converting circuit | |
| CN203982117U (en) | A kind of multi-function by one key control circuit | |
| CN205118381U (en) | Protection valve drive circuit is pressed to gas indicated altitude | |
| CN204598368U (en) | A kind of LED logic light adjusting circuit | |
| CN204442769U (en) | Landscape Lamp illumination intelligence control system | |
| CN204652353U (en) | Debugger D/A converting circuit | |
| CN203984239U (en) | MCU power IC | |
| CN203233311U (en) | Circuit of stabilized voltage supply | |
| CN203261521U (en) | LED switch power supply circuit | |
| CN203027121U (en) | Power switch and application circuit based on same | |
| CN203982527U (en) | A kind of novel Photoinduction type smoke alarm | |
| CN204334527U (en) | Cut-off switch circuit | |
| CN203299676U (en) | Fast voltage-stabilization circuit using photoelectric coupler | |
| CN204014148U (en) | A kind of modified model cold light piece driving circuit | |
| CN202535608U (en) | Light string connection control device | |
| CN201497921U (en) | Silicon controlled rectifier power supply voltage stabilizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000 Guangdong city in Dongguan Province town of Changan Wusha Cun BBK Avenue Star Industrial Park Patentee after: GUANGDONG LEIYANG INTELLIGENT TECHNOLOGY CO., LTD. Address before: 523000 Guangdong city in Dongguan Province town of Changan Wusha Cun BBK Avenue Star Industrial Park Patentee before: Guangdong Leiyang Electronic Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |