CN204925859U - Serial -type on -off control constant voltage power supply device - Google Patents
Serial -type on -off control constant voltage power supply device Download PDFInfo
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- CN204925859U CN204925859U CN201520525912.0U CN201520525912U CN204925859U CN 204925859 U CN204925859 U CN 204925859U CN 201520525912 U CN201520525912 U CN 201520525912U CN 204925859 U CN204925859 U CN 204925859U
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Abstract
The utility model provides a serial -type on -off control constant voltage power supply device, it includes casing, output, printed circuit board, screw, switching pulse generator, switch adjustment ware, energy storage filter circuit, input, output are located the high order end of casing, and printed circuit board is through the inside of mounting screw at the casing, and switching pulse generator is located printed circuit board's below, and the switch adjustment ware is located printed circuit board's the top, and energy storage filter circuit is located the right of printed circuit board, switching pulse generator constitute by oscillator and pulsewidth modulation voltage comparater, the switch adjustment ware constitute by the power tube, energy storage filter circuit be by inductance, electric capacity, diode, resistors, the utility model discloses the circuit is simple, the dependable performance, and output voltage is adjustable, and the ripple ratio is little to it is with low costs, small, light in weight, the compensating pipe is under switch operating condition moreover, and the consumption is little, and circuit efficient can reach 80%-90%.
Description
Technical field
The utility model relates to a kind of electronic technology field, particularly a kind of tandem switch control rule stabilized voltage supply device.
Background technology
Tandem switching power supply is common switch voltage-stabilizing circuit, and the adjuster in traditional mu balanced circuit is always operating at magnifying state, has electric current to flow through always, and such mu balanced circuit power consumption is comparatively large, and the efficiency of circuit is not high, generally can only reach 30% ~ 50%.
Utility model content
The purpose of this utility model be overcome prior art above-mentioned deficiency and a kind of tandem switch control rule stabilized voltage supply device is provided, its circuit is simple, dependable performance, and output voltage is adjustable, ripple coefficient is little, and cost is low, volume is little, lightweight, and adjuster is under switch working state, power consumption is little, and the efficiency of circuit is high, can reach 80% ~ 90%.
The technical solution of the utility model is: a kind of tandem switch control rule stabilized voltage supply device, it comprises casing, output terminal, printed circuit board (PCB), screw, switching pulse generator, switch adjuster, energy storage filtering circuit, input end, output terminal is positioned at the high order end of casing, printed circuit board (PCB) is arranged on the inside of casing by screw, switching pulse generator is positioned at the bottom of printed circuit board (PCB), switch adjuster is positioned at the top of printed circuit board (PCB), energy storage filtering circuit is positioned at the right of printed circuit board (PCB), and input end is positioned at the low order end of casing.
Further technical scheme of the present utility model is: described printed circuit board (PCB) is the insulating resin carrying dress electric elements, is provided with metallic coating on a printed circuit.
Further technical scheme of the present utility model is: described switching pulse generator is made up of oscillator and pwm voltage comparer, produce switching pulse, the width of pulse, by the control of comparison amplifier output voltage, the circuit of switching pulse generation electrical equipment is provided with comparison amplifier, arteries and veins modulation voltage comparer, triangular-wave generator and reference voltage.
The technical scheme of a step more of the present utility model is: described switch adjuster is made up of power tube, under the effect of switching pulse, make its conducting or cut-off, be operated on off state, the switching pulse width gauge tap adjuster conducting of arteries and veins modulation voltage comparer and the time scale of cut-off, thus export the interrupting pulse voltage be directly proportional with it.
The technical scheme of a step more of the present utility model is: described energy storage filtering circuit is made up of inductance, electric capacity, diode, resistance, and it can become the interrupting pulse voltage that switch adjuster exports into continuous print smooth dc voltage; When switch adjuster ON time is long, closing time in short-term, exports DC voltage just high, otherwise, when switch adjuster ON time is short, when closing time is long, export DC voltage just low.
The technical scheme of a step more of the present utility model is: described power tube is made up of triode, the collector of triode connects with the positive pole of output terminal, the emitter of triode is connected with the left end of inductance, the emitter of triode is also connected with the negative pole of diode, the right-hand member of inductance connects with the positive pole of electric capacity, the positive pole of electric capacity connects with the upper end of I resistance, the lower end of I resistance connects with the upper right corner negative pole of comparison amplifier, the lower end of I resistance also connects with the upper end of II resistance, the base stage of triode connects with the lower left corner positive pole of arteries and veins modulation voltage comparer, the upper right corner positive pole of arteries and veins modulation voltage comparer connects with the right lower left corner positive pole of comparison amplifier, the lower right corner negative pole of arteries and veins modulation voltage comparer is connected with the negative pole of output terminal by triangular-wave generator, the lower right corner positive pole of comparison amplifier is connected with the negative pole of output terminal by reference voltage, the positive pole of diode connects with the negative pole of output terminal, the lower end of II resistance connects with the positive pole of diode, the upper end of I resistance connects with the upper end of III resistance, the lower end of III resistance connects with the lower end of II resistance, the lower end ground connection of II resistance, the upper end of I resistance connects with the positive pole of input end, the lower end of II resistance connects with the negative pole of input end.
The utility model compared with prior art has following features:
1, a kind of tandem switch control rule stabilized voltage supply device of providing of the utility model, its circuit is simple, dependable performance, and output voltage is adjustable, and ripple coefficient is little, in working service etc., serve positive effect.
2, a kind of tandem switch control rule stabilized voltage supply device of providing of the utility model, all use common electric elements, market is easily bought, low price, and novel structure, cost is low, and volume is little, lightweight, adjuster is under switch working state, power consumption is little, and the efficiency of circuit is high, can reach 80% ~ 90%.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model characteristic, for enabling the clearer understanding of professional and technical personnel technological means of the present utility model, and can be implemented according to the content of instructions, coordinate accompanying drawing to elaborate to preferred embodiment of the present utility model below.
Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, and according to concrete scheme, structure, feature and the effect thereof that the utility model proposes, describe in detail.
As shown in drawings: a kind of tandem switch control rule stabilized voltage supply device, it comprises casing 1, output terminal 2, printed circuit board (PCB) (not marking), screw (not marking), switching pulse generator 5, switch adjuster 6, energy storage filtering circuit 7, input end 8, output terminal 2 is positioned at the high order end of casing 1, printed circuit board (PCB) (not marking) is arranged on the inside of casing 1 by spiral shell (not marking) nail, switching pulse generator 5 is positioned at the bottom of printed circuit board (PCB) (not marking), switch adjuster 6 is positioned at the top of printed circuit board (PCB) (not marking), energy storage filtering circuit 7 is positioned at the right of printed circuit board (PCB) (not marking), input end 8 is positioned at the low order end of casing 1.
In above-mentioned circuit, described printed circuit board (PCB) (not marking) is the insulating resin carrying dress electric elements, is provided with metallic coating on a printed circuit.
In above-mentioned circuit, described switching pulse generator 5 is made up of oscillator and pwm voltage comparer, produce switching pulse, the width of pulse, by the control of comparison amplifier output voltage, the circuit of switching pulse generation electrical equipment 5 is provided with comparison amplifier A1, arteries and veins modulation voltage comparer A2, triangular-wave generator 5-1 and reference voltage 5-2.
In above-mentioned circuit, described switch adjuster 6 is made up of power tube VT, under the effect of switching pulse, make its conducting or cut-off, be operated on off state, switching pulse width gauge tap adjuster 6 conducting at arteries and veins modulation voltage comparer A2 place and the time scale of cut-off, thus export the interrupting pulse voltage be directly proportional with it.
In above-mentioned circuit, described energy storage filtering circuit 7 is made up of inductance L, electric capacity C, diode VD, resistance R, and the interrupting pulse voltage that it can export switch adjuster 6 becomes continuous print smooth dc voltage; When switch adjuster 6 ON time is long, closing time in short-term, exports DC voltage just high, otherwise, when switch adjuster 6 ON time is short, when closing time is long, export DC voltage just low.
In above-mentioned circuit, described power tube is made up of triode VT, the collector of triode VT connects with the positive pole of output terminal, the emitter of triode VT is connected with the left end of inductance L, the emitter of triode VT is also connected with the positive pole of diode VD, the right-hand member of inductance L connects with the positive pole of electric capacity C, the positive pole of electric capacity C connects with the upper end with I resistance R1, the lower end of I resistance R1 connects with the upper right corner negative pole of comparison amplifier A1, the lower end of I resistance R1 also connects with the upper end of II resistance R2, the base stage of triode VT connects with the lower left corner positive pole of arteries and veins modulation voltage comparer A2, the upper right corner positive pole of arteries and veins modulation voltage comparer A2 connects with the right lower left corner positive pole of comparison amplifier A1, the lower right corner negative pole of arteries and veins modulation voltage comparer A2 is connected with the negative pole of output terminal by triangular-wave generator 5-1, the lower right corner positive pole of comparison amplifier A1 is connected with the negative pole of output terminal by reference voltage 5-2, the positive pole of diode VD connects with the negative pole of output terminal, the lower end of II resistance R2 connects with the positive pole of diode VD, the upper end of I resistance R1 connects with the upper end of III resistance R3, the lower end of III resistance R3 connects with the lower end of II resistance R2, the lower end ground connection of II resistance R2, the upper end of I resistance R1 connects with the positive pole of input end, the lower end of II resistance R2 connects with the negative pole of input end.
Principle of work of the present utility model and using method are: be first welded on by all electric elements on printed circuit board (PCB) (not marking), then printed circuit board (PCB) (not marking) is arranged in casing 1 by screw (not marking), due to sample circuit, what reference voltage and comparison amplifier were formed is degeneration factor, when output voltage raises, the control voltage that comparison amplifier A1 place exports reduces, the switching pulse of arteries and veins modulation voltage comparer A2 is narrowed, otherwise, therefore during output voltage reduction, the control voltage that comparison amplifier A1 place exports raises, make the switching pulse of arteries and veins modulation voltage comparer A2 broadening, when switch adjuster 6 ON time is long, closing time in short-term, exports DC voltage just high, otherwise, when switch adjuster 6 ON time is short, when closing time is long, export DC voltage just low, switching pulse width gauge tap adjuster 6 conducting at arteries and veins modulation voltage comparer A2 place and the time scale of cut-off, thus export the interrupting pulse voltage be directly proportional with it.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is block scheme of the present utility model;
Accompanying drawing 3 is circuit diagram of the present utility model.
Claims (6)
1. a tandem switch control rule stabilized voltage supply device, it is characterized in that: it comprises casing, output terminal, printed circuit board (PCB), screw, switching pulse generator, switch adjuster, energy storage filtering circuit, input end, output terminal is positioned at the high order end of casing, printed circuit board (PCB) is arranged on the inside of casing by screw, switching pulse generator is positioned at the bottom of printed circuit board (PCB), switch adjuster is positioned at the top of printed circuit board (PCB), energy storage filtering circuit is positioned at the right of printed circuit board (PCB), and input end is positioned at the low order end of casing.
2. a kind of tandem switch control rule stabilized voltage supply device according to claim 1, is characterized in that: described printed circuit board (PCB) is the insulating resin carrying dress electric elements, is provided with metallic coating on a printed circuit.
3. a kind of tandem switch control rule stabilized voltage supply device according to claim 1, it is characterized in that: described switching pulse generator is made up of oscillator and pwm voltage comparer, produce switching pulse, the width of pulse, by the control of comparison amplifier output voltage, the circuit of switching pulse generation electrical equipment is provided with comparison amplifier, arteries and veins modulation voltage comparer, triangular-wave generator and reference voltage.
4. a kind of tandem switch control rule stabilized voltage supply device according to claim 1 or 3, it is characterized in that: described switch adjuster is made up of power tube, under the effect of switching pulse, make its conducting or cut-off, be operated on off state, the switching pulse width gauge tap adjuster conducting at arteries and veins modulation voltage comparer place and the time scale of cut-off, thus export the interrupting pulse voltage be directly proportional with it.
5. a kind of tandem switch control rule stabilized voltage supply device according to claim 1, it is characterized in that: described energy storage filtering circuit is made up of inductance, electric capacity, diode, resistance, it can become the interrupting pulse voltage that switch adjuster exports into continuous print smooth dc voltage; When switch adjuster ON time is long, closing time in short-term, exports DC voltage just high, otherwise, when switch adjuster ON time is short, when closing time is long, export DC voltage just low.
6. a kind of tandem switch control rule stabilized voltage supply device according to claim 4, it is characterized in that: described power tube is made up of triode, the collector of triode connects with the positive pole of output terminal, the emitter of triode is connected with the left end of inductance, the emitter of triode is also connected with the negative pole of diode, the right-hand member of inductance connects with the positive pole of electric capacity, the positive pole of electric capacity connects with the upper end of I resistance, the lower end of I resistance connects with the upper right corner negative pole of comparison amplifier, the lower end of I resistance also connects with the upper end of II resistance, the base stage of triode connects with the lower left corner positive pole of arteries and veins modulation voltage comparer, the upper right corner positive pole of arteries and veins modulation voltage comparer connects with the right lower left corner positive pole of comparison amplifier, the lower right corner negative pole of arteries and veins modulation voltage comparer is connected with the negative pole of output terminal by triangular-wave generator, the lower right corner positive pole of comparison amplifier is connected with the negative pole of output terminal by reference voltage, the positive pole of diode connects with the negative pole of output terminal, the lower end of II resistance connects with the positive pole of diode, the upper end of I resistance connects with the upper end of III resistance, the lower end of III resistance connects with the lower end of II resistance, the lower end ground connection of II resistance, the upper end of I resistance connects with the positive pole of input end, the lower end of II resistance connects with the negative pole of input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525912.0U CN204925859U (en) | 2015-07-20 | 2015-07-20 | Serial -type on -off control constant voltage power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525912.0U CN204925859U (en) | 2015-07-20 | 2015-07-20 | Serial -type on -off control constant voltage power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204925859U true CN204925859U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525912.0U Expired - Fee Related CN204925859U (en) | 2015-07-20 | 2015-07-20 | Serial -type on -off control constant voltage power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204925859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375690A (en) * | 2018-10-17 | 2019-02-22 | 江门市新会区炎泰电子有限公司 | A kind of tandem type switch voltage-stabilizing circuit |
-
2015
- 2015-07-20 CN CN201520525912.0U patent/CN204925859U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375690A (en) * | 2018-10-17 | 2019-02-22 | 江门市新会区炎泰电子有限公司 | A kind of tandem type switch voltage-stabilizing 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: 20151230 Termination date: 20160720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |