CN103457476A - Self-excitation transformation-based voltage stabilizing circuit - Google Patents
Self-excitation transformation-based voltage stabilizing circuit Download PDFInfo
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- CN103457476A CN103457476A CN2013104113023A CN201310411302A CN103457476A CN 103457476 A CN103457476 A CN 103457476A CN 2013104113023 A CN2013104113023 A CN 2013104113023A CN 201310411302 A CN201310411302 A CN 201310411302A CN 103457476 A CN103457476 A CN 103457476A
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Abstract
The invention discloses a self-excitation transformation-based voltage stabilizing circuit which comprises a transformer, capacitors, triodes, resistors and diodes. According to the self-excitation transformation-based voltage stabilizing circuit, unstable direct-current high voltage is transformed into stable direct-current low voltage, unstable direct-current low voltage can also be transformed into stable direct-current high voltage or polarity of the unstable direct-current low voltage can be exchanged, alternating currents are converted into pulsant direct currents through unilateral conductivity of the diodes, and ripple waves in output direct-current voltage is restrained. The self-excitation transformation-based voltage stabilizing circuit is especially suitable for low-power power supply systems, energy sources are saved, output voltage is stabilized by controlling the proportion between pass transistor breakover and blocking time, stabilizing effects are better, efficiency is high, cost is low, and reliability is high.
Description
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Technical field
The present invention relates to a kind of voltage stabilizing circuit, be specifically related to a kind of self-excitation changing type volt circuit.
Background technology
At present, the very high system for reliability requirement, exist serious shortcoming,,, regardless of the actual size of alternating voltage component, on serial transistor, all to produce sizable power, and cause transistor to want continuous operation under the elevated operating temperature state, so that accelerate transistor ageing, useful life is short, and causes the whole system poor work stability.
Therefore, need a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
Goal of the invention: for the problem and shortage of above-mentioned existing existence, the purpose of this invention is to provide a kind of self-excitation changing type voltage stabilizing circuit, simple in structure, stability is strong.
Technical scheme: for achieving the above object, the technical solution used in the present invention is: a kind of self-excitation changing type voltage stabilizing circuit, this circuit comprises transformer, electric capacity, triode, resistance and diode, the Same Name of Ends of the first primary coil of transformer is connected with the base stage of the first triode, its other end is connected with the different name end of the 4th primary coil by the first resistance, the Same Name of Ends of the 4th primary coil is connected with the base stage of the second triode, the collector electrode of the second triode is connected with the emitter of the first triode, the emitter of the second triode is connected with the different name end of the 3rd primary coil, the collector electrode of the first triode is connected with the Same Name of Ends of the second primary coil, the different name end of the second primary coil is connected with the Same Name of Ends of the 3rd primary coil, the Same Name of Ends of the emitter of the first triode and the 3rd primary coil forms signal input part, the Same Name of Ends of the secondary coil of transformer is by the second capacity earth, the Same Name of Ends of secondary coil is connected with the positive pole of the second diode, the negative pole of the second diode is connected with the negative pole of the 3rd diode, the plus earth of the 3rd diode, the different name end ground connection of secondary coil.
Preferably, signal input part is parallel with the first electric capacity.
Preferably, signal input part is parallel with the first diode.
Preferably, the two ends of the second electric capacity are parallel with the 3rd electric capacity.
Beneficial effect: the present invention is transformed into stable DC low-voltage by unsettled high direct voltage, also can become unsettled DC low-voltage stable high direct voltage or switch polarity, unilateral conduction by diode, alternating current is changed into to the direct current of pulsation, suppress the ripple in output dc voltage, be specially adapted in the small-power electric power system, energy savings, utilize control adjustment pipe conducting and the ratio of deadline to carry out regulated output voltage, stablizing effect is better, its high efficiency, low cost, high reliability.
The accompanying drawing explanation
Fig. 1 is circuit diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes transformer, electric capacity, triode, resistance and diode, the Same Name of Ends of the first primary coil of transformer is connected with the base stage of the first triode Q1, its other end is connected with the different name end of the 4th primary coil by the first resistance R 1, the Same Name of Ends of the 4th primary coil is connected with the base stage of the second triode Q2, the collector electrode of the second triode Q2 is connected with the emitter of the first triode Q1, the emitter of the second triode Q2 is connected with the different name end of the 3rd primary coil, the collector electrode of the first triode Q1 is connected with the Same Name of Ends of the second primary coil, the different name end of the second primary coil is connected with the Same Name of Ends of the 3rd primary coil, the Same Name of Ends of the emitter of the first triode Q1 and the 3rd primary coil forms signal input part, the Same Name of Ends of the secondary coil of transformer is by the second capacitor C 2 ground connection, the Same Name of Ends of secondary coil is connected with the positive pole of the second diode D2, the negative pole of the second diode D2 is connected with the negative pole of the 3rd diode D3, the plus earth of the 3rd diode D3, the different name end ground connection of described secondary coil.
Signal input part is parallel with the first capacitor C 1, and signal input part is parallel with the first diode D1, and the two ends of the second capacitor C 2 are parallel with the 3rd capacitor C 3.
The present invention is transformed into stable DC low-voltage by unsettled high direct voltage, also can become unsettled DC low-voltage stable high direct voltage or switch polarity, by the unilateral conduction of diode, alternating current be changed into to the direct current of pulsation, suppress the ripple in output dc voltage, be specially adapted in the small-power electric power system, energy savings, utilize control to adjust the pipe conducting and the ratio of deadline is carried out regulated output voltage, stablizing effect is better, its high efficiency, low cost, high reliability.
Claims (4)
1. a self-excitation changing type voltage stabilizing circuit, it is characterized in that: comprise transformer, electric capacity, triode, resistance and diode, the Same Name of Ends of the first primary coil of described transformer is connected with the base stage of the first triode (Q1), its other end is connected with the different name end of the 4th primary coil by the first resistance (R1), the Same Name of Ends of described the 4th primary coil is connected with the base stage of the second triode (Q2), the collector electrode of described the second triode (Q2) is connected with the emitter of the first triode (Q1), the emitter of described the second triode (Q2) is connected with the different name end of the 3rd primary coil, the collector electrode of the first triode (Q1) is connected with the Same Name of Ends of the second primary coil, the different name end of described the second primary coil is connected with the Same Name of Ends of the 3rd primary coil, the Same Name of Ends of the emitter of described the first triode (Q1) and the 3rd primary coil forms signal input part, the Same Name of Ends of the secondary coil of described transformer is by the second electric capacity (C2) ground connection, the Same Name of Ends of secondary coil is connected with the positive pole of the second diode (D2), the negative pole of described the second diode (D2) is connected with the negative pole of the 3rd diode (D3), the plus earth of described the 3rd diode (D3), the different name end ground connection of described secondary coil.
2. a kind of self-excitation changing type voltage stabilizing circuit according to claim 1, it is characterized in that: described signal input part is parallel with the first electric capacity (C1).
3. according to claim 1 or 2 described a kind of self-excitation changing type voltage stabilizing circuits, it is characterized in that: described signal input part is parallel with the first diode (D1).
4. a kind of self-excitation changing type voltage stabilizing circuit according to claim 1, it is characterized in that: the two ends of described the second electric capacity (C2) are parallel with the 3rd electric capacity (C3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104113023A CN103457476A (en) | 2013-09-11 | 2013-09-11 | Self-excitation transformation-based voltage stabilizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104113023A CN103457476A (en) | 2013-09-11 | 2013-09-11 | Self-excitation transformation-based voltage stabilizing circuit |
Publications (1)
| Publication Number | Publication Date |
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| CN103457476A true CN103457476A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104113023A Pending CN103457476A (en) | 2013-09-11 | 2013-09-11 | Self-excitation transformation-based voltage stabilizing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168693A (en) * | 2014-07-03 | 2014-11-26 | 宁波摩米创新工场电子科技有限公司 | LED filtering voltage stabilizing circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045510U (en) * | 1988-10-27 | 1989-10-04 | 程志明 | Isolated dc voltage stabilizing and output device |
| CN2802835Y (en) * | 2005-03-24 | 2006-08-02 | 广州金升阳科技有限公司 | Mini-power DC/DC power-spply inverter with DC bias |
| CN200976705Y (en) * | 2006-02-08 | 2007-11-14 | 王昕� | Control circuit for electric mosquito swatter |
| EP2015617A2 (en) * | 2007-07-13 | 2009-01-14 | Mass Technology (H.K.) Ltd. | Electronic ballasts without toroidal-magnetic-core and fluorescent lamps employing the same |
| CN202696472U (en) * | 2012-06-06 | 2013-01-23 | 广州健特电子有限公司 | Self-excitation oscillation converter |
-
2013
- 2013-09-11 CN CN2013104113023A patent/CN103457476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045510U (en) * | 1988-10-27 | 1989-10-04 | 程志明 | Isolated dc voltage stabilizing and output device |
| CN2802835Y (en) * | 2005-03-24 | 2006-08-02 | 广州金升阳科技有限公司 | Mini-power DC/DC power-spply inverter with DC bias |
| CN200976705Y (en) * | 2006-02-08 | 2007-11-14 | 王昕� | Control circuit for electric mosquito swatter |
| EP2015617A2 (en) * | 2007-07-13 | 2009-01-14 | Mass Technology (H.K.) Ltd. | Electronic ballasts without toroidal-magnetic-core and fluorescent lamps employing the same |
| CN202696472U (en) * | 2012-06-06 | 2013-01-23 | 广州健特电子有限公司 | Self-excitation oscillation converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168693A (en) * | 2014-07-03 | 2014-11-26 | 宁波摩米创新工场电子科技有限公司 | LED filtering voltage stabilizing circuit |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20131218 |