CN205142003U - DC -DC converter - Google Patents
DC -DC converter Download PDFInfo
- Publication number
- CN205142003U CN205142003U CN201520830347.9U CN201520830347U CN205142003U CN 205142003 U CN205142003 U CN 205142003U CN 201520830347 U CN201520830347 U CN 201520830347U CN 205142003 U CN205142003 U CN 205142003U
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- Prior art keywords
- triode
- diode
- resistance
- electric capacity
- inductance
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Abstract
The utility model discloses a DC -DC converter, including resistance R1, electric capacity C1, inductance L, triode VT1, diode D1 and triode VT2, resistance R1 one end connect respectively VCC and inductance L, triode VT1 collecting electrode is connected to the resistance R1 other end, triode VT3 base and triode VT2 collecting electrode are connected respectively to triode VT1 projecting pole, triode VT3 projecting pole and electric capacity C2 and ground connection are connected respectively to triode VT2 projecting pole, it is anodal that diode D2 is connected to triode VT2 base, diode D2 negative pole connecting resistance R3, output vo is connected respectively to the resistance R3 other end, the electric capacity C2 other end and diode D1 negative pole. The utility model discloses DC -DC converter adopts the switching characteristic of triode component and zener diode's stabilized voltage characteristic to control, and circuit structure is simple, and is with low costs, small, does not use any chip element moreover, and the interference killing feature is strong, especially adapted using widely.
Description
Technical field
The utility model relates to a kind of converter, specifically a kind of DC-DC converter.
Background technology
Along with the development of power electronic technology, the work of power electronic equipment and people, the relation of life are day by day close, and electronic equipment all be unable to do without reliably power supply.DC-DC power source converter circuit utilizes modern power electronics technology, the time ratio of control switch transistor ON and shutoff, maintains a kind of power supply of regulated output voltage.DC-DC power source transducer high frequency is the direction of its development, and high frequency makes DC-DC power source transducer enter application widely, particularly in the application of high-technology field, has promoted the miniaturization of new high-tech product, lighting.How guarantee is stable export while, reduce DC-DC power source transducer volume, alleviate its weight, become the direction of research in industry.
Utility model content
The purpose of this utility model is to provide a kind of DC-DC converter, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of DC-DC converter, comprise resistance R1, electric capacity C1, inductance L, triode VT1, diode D1 and triode VT2, described resistance R1 one end connects power supply VCC and inductance L respectively, resistance R1 other end connecting triode VT1 collector electrode, triode VT1 emitter is connecting triode VT3 base stage and triode VT2 collector electrode respectively, triode VT2 emitter respectively connecting triode VT3 emitter and electric capacity C2 ground connection, triode VT2 base stage connects diode D2 positive pole, diode D2 negative pole contact resistance R3, the resistance R3 other end connects output end vo respectively, the electric capacity C2 other end and diode D1 negative pole, diode D1 positive pole connects the inductance L other end respectively, triode VT3 collector electrode and electric capacity C1, the electric capacity C1 other end connects earth resistance R2 and triode VT1 base stage respectively.
As further program of the utility model: described power supply VCC voltage is 9V.
As the utility model further scheme: described diode D2 is voltage stabilizing didoe.
Compared with prior art, the beneficial effects of the utility model are: the utility model DC-DC converter adopts the switching characteristic of triode and the stabilized voltage characteristic of voltage stabilizing didoe to control, circuit structure is simple, cost is low, volume is little, and not using any chip component, antijamming capability is strong, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of DC-DC converter.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of DC-DC converter, comprise resistance R1, electric capacity C1, inductance L, triode VT1, diode D1 and triode VT2, described resistance R1 one end connects power supply VCC and inductance L respectively, resistance R1 other end connecting triode VT1 collector electrode, triode VT1 emitter is connecting triode VT3 base stage and triode VT2 collector electrode respectively, triode VT2 emitter respectively connecting triode VT3 emitter and electric capacity C2 ground connection, triode VT2 base stage connects diode D2 positive pole, diode D2 negative pole contact resistance R3, the resistance R3 other end connects output end vo respectively, the electric capacity C2 other end and diode D1 negative pole, diode D1 positive pole connects the inductance L other end respectively, triode VT3 collector electrode and electric capacity C1, the electric capacity C1 other end connects earth resistance R2 and triode VT1 base stage respectively.
Power supply VCC voltage is 9V.
Diode D2 is voltage stabilizing didoe.
Operation principle of the present utility model is: refer to Fig. 1, triode VT1, triode VT2, VT3 and peripheral cell form a negative feedback amplifier circuit, feedback is provided by resistance R3 and diode D2, inductance L and parasitic capacitance C1 form a resonant circuit, this circuit produces vibration due to negative impedance, if output end vo voltage exceedes the burning voltage of voltage stabilizing didoe D2, just negative feedback is applied to driving triode VT1, make output end vo voltages keep constant, therefore output end vo voltage equals the burning voltage of voltage stabilizing didoe D2, change voltage stabilizing didoe D2 just to regulate output end vo voltage.
The utility model DC-DC converter adopts the switching characteristic of triode and the stabilized voltage characteristic of voltage stabilizing didoe to control, and circuit structure is simple, and cost is low, and volume is little, and does not use any chip component, and antijamming capability is strong, is applicable to very much promoting the use of.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. a DC-DC converter, comprise resistance R1, electric capacity C1, inductance L, triode VT1, diode D1 and triode VT2, it is characterized in that, described resistance R1 one end connects power supply VCC and inductance L respectively, resistance R1 other end connecting triode VT1 collector electrode, triode VT1 emitter is connecting triode VT3 base stage and triode VT2 collector electrode respectively, triode VT2 emitter respectively connecting triode VT3 emitter and electric capacity C2 ground connection, triode VT2 base stage connects diode D2 positive pole, diode D2 negative pole contact resistance R3, the resistance R3 other end connects output end vo respectively, the electric capacity C2 other end and diode D1 negative pole, diode D1 positive pole connects the inductance L other end respectively, triode VT3 collector electrode and electric capacity C1, the electric capacity C1 other end connects earth resistance R2 and triode VT1 base stage respectively.
2. DC-DC converter according to claim 1, is characterized in that, described power supply VCC voltage is 9V.
3. DC-DC converter according to claim 1, is characterized in that, described diode D2 is voltage stabilizing didoe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520830347.9U CN205142003U (en) | 2015-10-26 | 2015-10-26 | DC -DC converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520830347.9U CN205142003U (en) | 2015-10-26 | 2015-10-26 | DC -DC converter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205142003U true CN205142003U (en) | 2016-04-06 |
Family
ID=55627755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520830347.9U Expired - Fee Related CN205142003U (en) | 2015-10-26 | 2015-10-26 | DC -DC converter |
Country Status (1)
Country | Link |
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CN (1) | CN205142003U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106411128A (en) * | 2016-11-24 | 2017-02-15 | 郑州艾莫弗信息技术有限公司 | Switch power supply control circuit |
-
2015
- 2015-10-26 CN CN201520830347.9U patent/CN205142003U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106411128A (en) * | 2016-11-24 | 2017-02-15 | 郑州艾莫弗信息技术有限公司 | Switch power supply control circuit |
CN106411128B (en) * | 2016-11-24 | 2018-08-03 | 乌鲁木齐市英格科技开发有限公司 | A kind of switching power source control circuit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161026 |
|
CF01 | Termination of patent right due to non-payment of annual fee |