CN203204488U - Full-automatic contactless type alternating-current voltage stabilizer - Google Patents
Full-automatic contactless type alternating-current voltage stabilizer Download PDFInfo
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- CN203204488U CN203204488U CN 201320179315 CN201320179315U CN203204488U CN 203204488 U CN203204488 U CN 203204488U CN 201320179315 CN201320179315 CN 201320179315 CN 201320179315 U CN201320179315 U CN 201320179315U CN 203204488 U CN203204488 U CN 203204488U
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- rectification circuit
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- unijunction transistor
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Abstract
The utility model discloses a full-automatic contactless type alternating-current voltage stabilizer. The full-automatic contactless type alternating-current voltage stabilizer comprises a fuse protector, a switch, a rectifying circuit, an inductor, controllable silicon, a unijunction transistor, a first resistor, a second resistor, a third resistor, a diode, a capacitor and a potentiometer. When mains voltage is increased, the voltage applied on the unijunction transistor is correspondingly increased, the oscillation is quickened up, the conduction angle of the controllable silicon is reduced and the voltage on the controllable silicon is increased, so that the voltage on the inductor is unchanged; on the other hand, when the voltage on the controllable silicon is reduced, the voltage on the inductor is still kept unchanged, so that the voltage coupled by the inductor is kept stable. The full-automatic contactless type alternating-current voltage stabilizer is the voltage stabilizer with low power consumption and low dropout voltage, and is suitable for various low-voltage electronic products; especially, the full-automatic contactless type alternating-current voltage stabilizer is simple in structure, fewer in adopted elements, low in cost, small in size, capable of reducing the product size, capable of reducing the product weight and beneficial to popularization.
Description
Technical field
The utility model relates to a kind of AC power voltage stabilizer, relates in particular to a kind of fully automatic contactless formula AC voltage regulator.
Background technology
Voltage stabilizer is at various power equipments and the electronic equipment electronic component that all is absolutely necessary surely, but voltage stabilizer of the prior art all is coil form mostly, and volume is big, cost is high, power consumption is high, pressure reduction height especially, thus influence properties of product.
The utility model content
The purpose of this utility model provides a kind of fully automatic contactless formula AC voltage regulator with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises fuse, switch, rectification circuit, inductance, controllable silicon, unijunction transistor, first resistance, second resistance, the 3rd resistance, diode, electric capacity and potentiometer, first end of described fuse is connected with the live wire input end, second end of described fuse is connected with the tap of described inductance and the positive pole of described diode simultaneously, first end of described inductance is the live wire output terminal, second end of described inductance is connected with the first input end of rectification circuit, second input end of described rectification circuit is connected with first end of described switch, and second input end of described rectification circuit is the zero line output terminal, second end of described switch is connected with the zero line input end, the cathode output end of described rectification circuit is connected with first end of described second resistance with described silicon controlled is anodal simultaneously, cathode output end while and the described silicon controlled negative pole of described rectification circuit, first end of described the 3rd resistance and first end of described electric capacity are connected, second end of described second resistance is connected with first base stage of described silicon controlled control end and described unijunction transistor simultaneously, second base stage of described unijunction transistor is connected with second end of described the 3rd resistance, the emitter while of described unijunction transistor and second end of described electric capacity, first end of described potentiometer and the sliding end of described potentiometer are connected, second end of described potentiometer is connected with first end of described first resistance, and second end of described first resistance is connected with the negative pole of described diode.
The beneficial effects of the utility model are:
The utility model is fully automatic contactless formula voltage stabilizer, has the voltage stabilizer of low-power consumption, low pressure reduction, is applicable to all kinds of Low-voltage Electronic products, especially simple in structure, adopt that element is few, cost is low, volume is little, can dwindle small product size, alleviate product weight, be conducive to promote.
Description of drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises fuse FU, switch S, rectification circuit DR, inductance L, controllable silicon VT, unijunction transistor V, first resistance R 1, second resistance R 2, the 3rd resistance R 3, diode VD, capacitor C and potentiometer RP, first end of fuse FU is connected with the live wire input end, second end of fuse FU is connected with the tap of inductance L and the positive pole of diode VD simultaneously, first end of inductance L is the live wire output terminal, second end of inductance L is connected with the first input end of rectification circuit DR, second input end of rectification circuit DR is connected with first end of switch S, and second input end of rectification circuit DR is the zero line output terminal, second end of switch S is connected with the zero line input end, the cathode output end of rectification circuit DR is connected with the positive pole of controllable silicon VT and first end of second resistance R 2 simultaneously, the cathode output end while of rectification circuit DR and the negative pole of controllable silicon V, first end of the 3rd resistance R 3 and first end of capacitor C are connected, second end of second resistance R 2 is connected with the control end of controllable silicon VT and first base stage of unijunction transistor V simultaneously, second base stage of unijunction transistor V is connected with second end of the 3rd resistance R 3, the emitter while of unijunction transistor V and second end of capacitor C, first end of potentiometer RP is connected with the sliding end of potentiometer RP, second end of potentiometer RP is connected with first end of first resistance R 1, and second end of first resistance R 1 is connected with the negative pole of diode VD.
As shown in Figure 1: civil power is added on the controllable silicon VT after inductance L enters rectification circuit DR full-bridge rectification, and the conduction angle of controllable silicon VT is controlled by unijunction transistor V.Unijunction transistor V, capacitor C, first resistance R 1, second resistance R 2, the 3rd resistance R 3 and potentiometer RP form a relaxor, change potentiometer RP and can change oscillation period.When line voltage raises, be added in the corresponding rising of voltage on the unijunction transistor V, concussion is accelerated, and controllable silicon VT conduction angle reduces, and the voltage on the controllable silicon VT raises, and makes on the inductance L voltage constant; The voltage when otherwise the voltage on the controllable silicon VT reduces on the inductance L is still constant, so the voltage after the inductance L coupling also just keeps stablizing.Owing to adopted full-bridge rectification, the voltage on the inductance L is sine wave.
Claims (1)
1. fully automatic contactless formula AC voltage regulator, it is characterized in that: comprise fuse, switch, rectification circuit, inductance, controllable silicon, unijunction transistor, first resistance, second resistance, the 3rd resistance, diode, electric capacity and potentiometer, first end of described fuse is connected with the live wire input end, second end of described fuse is connected with the tap of described inductance and the positive pole of described diode simultaneously, first end of described inductance is the live wire output terminal, second end of described inductance is connected with the first input end of rectification circuit, second input end of described rectification circuit is connected with first end of described switch, and second input end of described rectification circuit is the zero line output terminal, second end of described switch is connected with the zero line input end, the cathode output end of described rectification circuit is connected with first end of described second resistance with described silicon controlled is anodal simultaneously, cathode output end while and the described silicon controlled negative pole of described rectification circuit, first end of described the 3rd resistance and first end of described electric capacity are connected, second end of described second resistance is connected with first base stage of described silicon controlled control end and described unijunction transistor simultaneously, second base stage of described unijunction transistor is connected with second end of described the 3rd resistance, the emitter while of described unijunction transistor and second end of described electric capacity, first end of described potentiometer and the sliding end of described potentiometer are connected, second end of described potentiometer is connected with first end of described first resistance, and second end of described first resistance is connected with the negative pole of described diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320179315 CN203204488U (en) | 2013-04-11 | 2013-04-11 | Full-automatic contactless type alternating-current voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320179315 CN203204488U (en) | 2013-04-11 | 2013-04-11 | Full-automatic contactless type alternating-current voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203204488U true CN203204488U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320179315 Expired - Fee Related CN203204488U (en) | 2013-04-11 | 2013-04-11 | Full-automatic contactless type alternating-current voltage stabilizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203204488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536500A (en) * | 2015-01-28 | 2015-04-22 | 周芸 | Unidirectional silicon-controlled alternating-current voltage regulator |
-
2013
- 2013-04-11 CN CN 201320179315 patent/CN203204488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536500A (en) * | 2015-01-28 | 2015-04-22 | 周芸 | Unidirectional silicon-controlled alternating-current voltage regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140411 |