CN104702099A - Direct-current booster circuit - Google Patents
Direct-current booster circuit Download PDFInfo
- Publication number
- CN104702099A CN104702099A CN201310665739.XA CN201310665739A CN104702099A CN 104702099 A CN104702099 A CN 104702099A CN 201310665739 A CN201310665739 A CN 201310665739A CN 104702099 A CN104702099 A CN 104702099A
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- Prior art keywords
- triode
- voltage
- circuit
- power supply
- diode
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- 239000003381 stabilizer Substances 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000630 rising effect Effects 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a direct-current booster circuit. The direct-current booster circuit comprises an inductor, a first capacitor, a second capacitor, a voltage-regulator tube, a resistor, a first triode, a second triode and a diode. The invention also discloses electronic equipment. By the direct-current booster circuit, voltage boosting can be implemented through a switching-on and switching-off function of the triodes, a charging and discharging function of the inductor, a charging and discharging function of the capacitors and a voltage stabilizing function of the voltage-regulator tube, and the voltage of an outputting end is higher than the voltage of an inputting power supply. The number of elements of the direct-current booster circuit is small, the structure of the circuit is simple, and the cost is low.
Description
Technical field
The present invention relates to circuit engineering field, particularly relate to a kind of DC voltage booster circuit.
Background technology
DC boosting refers to that the lower direct voltage provided by battery is increased to required magnitude of voltage, and its basic course of work is: the higher-order of oscillation produces action of low-voltage pulse---pulse transformer boosts to scheduled voltage---impulse commutation and obtains high voltage direct current.DC voltage booster circuit is widely used in making in battery-powered portable equipment, these equipment comprise: the photoflash lamp in flashlight, camera, portable video display unit, electric mosquito flap, in fields such as LED backlight, can also be used in universal meter, DC voltage booster circuit can be used for alternative high pressure laminating battery, usually, general application is that 1.5V is upgraded to 9V.
Traditional solution is all certain a special boost chip and auxiliary circuit thereof of application, but the method cost is relatively high.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that DC voltage booster circuit cost of the prior art is high, provides a kind of DC voltage booster circuit.
The technical solution adopted for the present invention to solve the technical problems is, provides a kind of DC voltage booster circuit, comprising: inductance, the first electric capacity, the second electric capacity, voltage-stabiliser tube, resistance, the first triode, the second triode and diode, wherein,
One end of described inductance is connected with the positive pole of power supply, the minus earth of described power supply, and the other end of described inductance is connected by the base stage of described first electric capacity with described first triode, and the other end of described inductance is connected with the collector electrode of described second triode;
The emitter of described first triode is connected with the positive pole of described power supply, the base stage of described first triode is by described first grounding through resistance, the collector electrode of described first triode is connected with the base stage of described second triode, the grounded emitter of described second triode;
The anode of described voltage-stabiliser tube is connected with the base stage of described first triode, and the negative electrode of described voltage-stabiliser tube is connected with the negative electrode of described diode;
The anode of described diode is connected with the collector electrode of described second triode, and the negative electrode of described diode is by described second capacity earth, and the negative electrode of described diode is the positive output end of described circuit, the negative output terminal ground connection of described circuit.
Wherein, described first triode is PNP type triode, and described second triode is NPN type triode.
Wherein, in described circuit, all components and parts are surface mount elements.
Wherein, in described circuit, the surface of all components and parts is all attached with three anti-paints.
Correspondingly, present invention also offers a kind of electronic equipment, it is characterized in that, comprise circuit as above.
Wherein, also comprise switch and power supply, the positive pole that described switch is connected to described power supply is connected on a branch road of described circuit, and described power supply is Rechargeable battery.
Wherein, at least one LED load is also comprised.
Implement the present invention, there is following beneficial effect:
Utilize the charging/discharging function of the conducting of triode and cutoff function, inductance and electric capacity and the voltage stabilizing function of voltage-stabiliser tube to realize the boosting of direct voltage, make output end voltage higher than the voltage of input power.The components and parts that this DC voltage booster circuit adopts are few, circuit structure simple, have lower cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of a kind of DC voltage booster circuit of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, be the circuit diagram of a kind of DC voltage booster circuit of the embodiment of the present invention, this circuit comprises inductance L, the first electric capacity C1, the second electric capacity C2, voltage-stabiliser tube ZD, resistance R1, the first triode Q1, the second triode Q2 and diode D.
The annexation of above-mentioned components and parts is: one end of inductance L is connected with the positive pole of power supply Ui, the minus earth of power supply Ui, the other end of inductance L is connected with the base stage of the first triode Q1 by the first electric capacity C1, and the other end of inductance L is connected with the collector electrode of the second triode Q2; The emitter of the first triode Q1 is connected with the positive pole of power supply Ui, and the base stage of the first triode Q1 is by the first resistance R1 ground connection, and the collector electrode of the first triode Q1 is connected with the base stage of the second triode Q2, the grounded emitter of the second triode Q2; The anode of voltage-stabiliser tube D is connected with the base stage of the first triode Q1, the negative electrode of voltage-stabiliser tube D is connected with the negative electrode of diode D, the anode of diode D is connected with the collector electrode of the second triode Q2, the negative electrode of diode D is by the second electric capacity C2 ground connection, the negative electrode of diode D is the positive output end of described circuit, the negative output terminal ground connection of described circuit.
Preferably, the first triode Q1 is PNP type triode, and the second triode Q2 is NPN type triode.
Preferably; in described circuit, all components and parts are surface mount elements, and cost is low and convenient produce in enormous quantities, and in described circuit, the surface of all components and parts is all attached with three anti-paints; this circuit can be protected from the impact of adverse circumstances, and there is protection against the tide, the effect such as dust-proof, shockproof.
Further, present invention also offers a kind of electronic equipment, comprise circuit as above.
Preferably, this equipment also comprises K switch and power supply Ui, and the positive pole that K switch is connected to input power Ui is connected on a branch road of described circuit, and power supply Ui is Rechargeable battery.
Preferably, this equipment also comprises at least one LED load, the quantity of the embodiment of the present invention to LED load is not restricted, for convenience of description, the quantity of getting LED load is 2 (LED1 ~ LED2), as shown in Figure 1, the first LED load LED1 is all connected with the positive output end of described circuit with the anode of the second LED load LED2 connected mode, the equal ground connection of negative electrode of the first LED load LED1 and the second LED load LED2.
Preferably, this electronic equipment can be flashlight.
The operation principle of described booster circuit is:
Close a switch K, electric current charges to the first electric capacity C1 by inductance L, along with the carrying out of the first electric capacity C1 charging process, the voltage drop at the first resistance R1 two ends, along with the decline of the voltage at the first resistance R1 two ends, first triode Q1 enters magnifying state from cut-off state, along with the conducting of the first triode Q1, second triode Q2 also and then enters magnifying state, because the first electric capacity C1 is positive feedback, therefore, after the first triode Q1 and the second triode Q2 enters magnifying state, saturation conduction state is entered rapidly again, when the first triode Q1 and the second triode Q2 enters saturation conduction state, inductance L starts energy storage, first electric capacity C1 also starts electric discharge, along with the carrying out of the first electric capacity C1 discharge process, the voltage of the first resistance R1 raises, along with the rising of the first resistance R1 both end voltage, first triode Q1 and the second triode Q2 transfers cut-off state to from saturation conduction state, when the first triode Q1 and the second triode Q2 is in cut-off state, inductance L release energy storage produces the higher voltage of relative power supply against electromotive force, and charge to the second electric capacity C2 with power supply series connection is rear by diode D, thus obtain the voltage higher than input power at output, voltage-stabiliser tube ZD carries out voltage stabilizing to the voltage after boosting, first electric capacity C1 also charges again simultaneously.
Implement embodiments of the invention, utilize the charging/discharging function of the conducting of triode and cutoff function, inductance and electric capacity and the voltage stabilizing function of voltage-stabiliser tube to realize the boosting of direct voltage, make output end voltage higher than the voltage of input power.The components and parts that this booster circuit adopts are few, circuit structure simple, have lower cost.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosedly be only preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (7)
1. a DC voltage booster circuit, is characterized in that, comprises inductance, the first electric capacity, the second electric capacity, voltage-stabiliser tube, resistance, the first triode, the second triode and diode, wherein:
One end of described inductance is connected with the positive pole of power supply, the minus earth of described power supply, and the other end of described inductance is connected by the base stage of described first electric capacity with described first triode, and the other end of described inductance is connected with the collector electrode of described second triode;
The emitter of described first triode is connected with the positive pole of described power supply, the base stage of described first triode is by described first grounding through resistance, the collector electrode of described first triode is connected with the base stage of described second triode, the grounded emitter of described second triode;
The anode of described voltage-stabiliser tube is connected with the base stage of described first triode, and the negative electrode of described voltage-stabiliser tube is connected with the negative electrode of described diode;
The anode of described diode is connected with the collector electrode of described second triode, and the negative electrode of described diode is by described second capacity earth, and the negative electrode of described diode is the positive output end of described circuit, the negative output terminal ground connection of described circuit.
2. circuit as claimed in claim 1, it is characterized in that, described first triode is PNP type triode, and described second triode is NPN type triode.
3. circuit as claimed in claim 2, it is characterized in that, all components and parts are surface mount elements.
4. circuit as claimed in claim 3, it is characterized in that, the surface of all components and parts is all attached with three anti-paints.
5. an electronic equipment, is characterized in that, comprises the circuit as described in any one of claim 1-4.
6. equipment as claimed in claim 5, it is characterized in that, also comprise switch and power supply, the positive pole that described switch is connected to described power supply is connected on a branch road of described circuit, and described power supply is Rechargeable battery.
7. equipment as claimed in claim 6, is characterized in that, also comprise at least one LED load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665739.XA CN104702099A (en) | 2013-12-09 | 2013-12-09 | Direct-current booster circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665739.XA CN104702099A (en) | 2013-12-09 | 2013-12-09 | Direct-current booster circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702099A true CN104702099A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310665739.XA Pending CN104702099A (en) | 2013-12-09 | 2013-12-09 | Direct-current booster circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104702099A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031633A (en) * | 2020-01-09 | 2020-04-17 | Oppo广东移动通信有限公司 | Flash lamp driving circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246184B1 (en) * | 1999-08-03 | 2001-06-12 | Texas Instruments Incorporated | Flashlight boost regulator |
| CN2694697Y (en) * | 2004-04-15 | 2005-04-20 | 李道明 | Electricity saving convenient lamp |
| CN101527983A (en) * | 2009-04-23 | 2009-09-09 | 张华� | White-light LED illumination driving circuit on basis of current-type charge pump |
| CN201797620U (en) * | 2010-04-20 | 2011-04-13 | 成都蜀昌科技有限公司 | Driving circuit for long-life LED electric torch |
| CN202353899U (en) * | 2011-12-21 | 2012-07-25 | 陈清尧 | Energy-saving environmentally-friendly street lamp |
| CN202798458U (en) * | 2012-05-17 | 2013-03-13 | 佛山市顺德区瑞德电子实业有限公司 | Discrete dc-dc converter |
| CN202857060U (en) * | 2012-09-19 | 2013-04-03 | 宁波南方新能源科技有限公司 | Solar energy lawn lamp |
| CN103391673A (en) * | 2013-08-20 | 2013-11-13 | 吴建堂 | Boosted type LED flashlight provided with one battery |
-
2013
- 2013-12-09 CN CN201310665739.XA patent/CN104702099A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246184B1 (en) * | 1999-08-03 | 2001-06-12 | Texas Instruments Incorporated | Flashlight boost regulator |
| CN2694697Y (en) * | 2004-04-15 | 2005-04-20 | 李道明 | Electricity saving convenient lamp |
| CN101527983A (en) * | 2009-04-23 | 2009-09-09 | 张华� | White-light LED illumination driving circuit on basis of current-type charge pump |
| CN201797620U (en) * | 2010-04-20 | 2011-04-13 | 成都蜀昌科技有限公司 | Driving circuit for long-life LED electric torch |
| CN202353899U (en) * | 2011-12-21 | 2012-07-25 | 陈清尧 | Energy-saving environmentally-friendly street lamp |
| CN202798458U (en) * | 2012-05-17 | 2013-03-13 | 佛山市顺德区瑞德电子实业有限公司 | Discrete dc-dc converter |
| CN202857060U (en) * | 2012-09-19 | 2013-04-03 | 宁波南方新能源科技有限公司 | Solar energy lawn lamp |
| CN103391673A (en) * | 2013-08-20 | 2013-11-13 | 吴建堂 | Boosted type LED flashlight provided with one battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031633A (en) * | 2020-01-09 | 2020-04-17 | Oppo广东移动通信有限公司 | Flash lamp driving circuit |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |