CN104049661A - Automatic adjustment type voltage stabilizer - Google Patents
Automatic adjustment type voltage stabilizer Download PDFInfo
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- CN104049661A CN104049661A CN201310083761.3A CN201310083761A CN104049661A CN 104049661 A CN104049661 A CN 104049661A CN 201310083761 A CN201310083761 A CN 201310083761A CN 104049661 A CN104049661 A CN 104049661A
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- triode
- resistance
- potentiometer
- voltage stabilizer
- resistor
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Abstract
The invention discloses an automatic adjustment type voltage stabilizer. The automatic adjustment type voltage stabilizer comprises a first potentiometer, a second potentiometer, a first triode, a second triode, a third triode, a fourth triode, a fifth triode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first voltage-stabilizing pipe, a second voltage-stabilizing pipe, a first capacitor and a second capacitor. When overload is further increased, load is cut off, whether a circuit is automatically restored or not is determined by the second triode, in a short circuit state, the second triode is in saturated conductivity, current through the second triode is limited by the first resistor, and after a short circuit failure of the load is eliminated, voltage slightly conducting the fifth triode is formed, and the voltage stabilizer is started. When the short circuit failure of the load is caused, the output current is not completely cut off, i.e. certain current continuously passes through an adjusting pipe. Therefore, after the current failure is eliminated, work of the voltage stabilizer can be automatically restored, and the voltage stabilizer is protected.
Description
Technical field
The present invention relates to a kind of voltage stabilizer for various electrical appliances, relate in particular to a kind of automatic regulation type voltage stabilizer.
Background technology
As everyone knows, voltage stabilizer is widely adopted in various electrical appliances, but existing voltage stabilizer is when there is short trouble in load, output current will be completely severed, do not have electric current to manage by adjustment, this electric current can make voltage stabilizer can not reply in time work after Failure elimination, even burns voltage stabilizer.
Summary of the invention
Object of the present invention provides a kind of automatic regulation type voltage stabilizer with regard to being in order to address the above problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes the first potentiometer, the second potentiometer, the first triode to the five triodes, the first resistance to the six resistance, the first stabilivolt, the second stabilivolt, the first electric capacity and the second electric capacity, the first end while of described the first resistance and the first end of described the second resistance, the first end of described the 3rd resistance, the first end of described the first potentiometer, the emitter of described the first triode, the first end of described the 4th resistance, the first end of described the first electric capacity is connected with cathode power supply input end, the second end of described the first resistance is connected with the collector of described the second triode, the base stage of described the second triode is connected with the negative pole of described the first stabilivolt with the second end of described the second resistance simultaneously, the positive pole of described the first stabilivolt is connected with ground wire, the second end of described the 3rd resistance is connected with the emitter of described the 3rd triode, the base stage of described the 3rd triode is connected with the emitter of described the 4th triode with the second end of described the first potentiometer simultaneously, the base stage of described the first triode is connected with the sliding end of described the first potentiometer, the second end of described the 4th resistance is connected with the collector of described the 5th triode with the base stage of described the 4th triode simultaneously, the collector while of described the first triode and the emitter of described the 5th triode, the first end of described the 6th resistance is connected with the positive pole of described the second stabilivolt, the base stage of described the 5th triode is connected with the sliding end of described the second potentiometer, the negative pole while of described the second stabilivolt and the first end of described the second potentiometer, the collector of described the 3rd triode, the first end of described the second electric capacity, the emitter of described the second triode is connected with positive source output terminal, the second end of described the second electric capacity is connected with ground wire, the second end while of described the 6th resistance and the second end of described the second potentiometer, the first end of described the 5th resistance, the second end of described the first electric capacity, power cathode input end is connected with power cathode output terminal, the second end of described the 5th resistance is connected with the collector of described the 4th triode.
Particularly, described the first triode, described the 3rd triode and described the 4th triode are positive-negative-positive triode, and described the second triode and described the 5th triode are NPN type triode.
Beneficial effect of the present invention is:
The present invention is when there is short trouble in load, and output current can not cut off completely, has certain electric current to continue to manage by adjustment, so the present invention can make voltage stabilizer automatically resume work after current failure elimination, and has the protective effect to voltage stabilizer.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes the first potentiometer RP1, the second potentiometer RP2, the first triode VT1 to the five triode VT5, the first resistance R 1 is to the 6th resistance R 6, the first stabilivolt VD1, the second stabilivolt VD2, the first capacitor C 1 and the second capacitor C 2, the first end while of the first resistance R 1 and the first end of the second resistance R 2, the first end of the 3rd resistance R 3, the first end of the first potentiometer RP1, the emitter of the first triode VT1, the first end of the 4th resistance R 4, the first end of the first capacitor C 1 is connected with cathode power supply input end, the second end of the first resistance R 1 is connected with the collector of the second triode VT2, the base stage of the second triode VT2 is connected with the negative pole of the first stabilivolt VD1 with the second end of the second resistance R 2 simultaneously, the positive pole of the first stabilivolt VD1 is connected with ground wire, the second end of the 3rd resistance R 3 is connected with the emitter of the 3rd triode VT3, the base stage of the 3rd triode VT3 is connected with the emitter of the 4th triode VT4 with the second end of the first potentiometer RP1 simultaneously, the base stage of the first triode VT1 is connected with the sliding end of the first potentiometer RP1, the second end of the 4th resistance R 4 is connected with the collector of the 5th triode VT5 with the base stage of the 4th triode VT4 simultaneously, the collector while of the first triode VT1 and the emitter of the 5th triode VT5, the first end of the 6th resistance R 6 is connected with the positive pole of the second stabilivolt VD2, the base stage of the 5th triode VT5 is connected with the sliding end of the second potentiometer RP2, the negative pole while of the second stabilivolt VD2 and the first end of the second potentiometer RP2, the collector of the 3rd triode VT3, the first end of the second capacitor C 2, the emitter of the second triode VT2 is connected with positive source output terminal, the second end of the second capacitor C 2 is connected with ground wire, the second end while of the 6th resistance R 6 and the second end of the second potentiometer RP2, the first end of the 5th resistance R 5, the second end of the first capacitor C 1, power cathode input end is connected with power cathode output terminal, the second end of the 5th resistance R 5 is connected with the collector of the 4th triode VT4.The first triode VT1, the 3rd triode VT3 and described the 4th triode VT4 are positive-negative-positive triode, and the second triode VT2 and the 5th triode VT5 are NPN type triode.
As shown in Figure 1: when output voltage increases, the 5th triode VT5 base bias reduces, its collector current reduces, and voltage raises, thereby causes that the 4th triode VT4 base voltage raises, electric current reduces, its emitter (adjusting pipe the 3rd triode VT3 base stage) voltage raises, and electric current reduces, and the 3rd triode VT3 pressure drop Uce3 increases, so just make output voltage reduce, reach the object of voltage stabilizing.Output voltage can be by regulating the second potentiometer RP2 change.When overload, the pressure drop in the 3rd resistance R 3 increases, and make to adjust pipe the 3rd triode VT3 base bias and reduce, thereby cause the slight conducting of protection tube the first triode VT1, the 5th triode VT5 cut-off, voltage stabilizer is transitioned into the duty of restriction load current.Regulate the first potentiometer RP1, can determine current limliting threshold value.When overload further strengthens, load is cut off, automatic restoring circuit is determined by the second triode VT2 link, under short-circuit condition, this manages saturation conduction, is subject to the first resistance R 1 restriction, by its electric current after load short circuits Failure elimination, the voltage that occurs making the slight conducting of the 5th triode VT5, causes the startup of voltage stabilizer.The second triode VT2 base voltage is in advance by the given level that is less than 5v of the first stabilivolt VD1, and when voltage stabilizer enters duty, the second triode VT2 ends like this, and load current is only by the 3rd triode VT3.
Claims (2)
1. an automatic regulation type voltage stabilizer, it is characterized in that: comprise the first potentiometer, the second potentiometer, the first triode to the five triodes, the first resistance to the six resistance, the first stabilivolt, the second stabilivolt, the first electric capacity and the second electric capacity, the first end while of described the first resistance and the first end of described the second resistance, the first end of described the 3rd resistance, the first end of described the first potentiometer, the emitter of described the first triode, the first end of described the 4th resistance, the first end of described the first electric capacity is connected with cathode power supply input end, the second end of described the first resistance is connected with the collector of described the second triode, the base stage of described the second triode is connected with the negative pole of described the first stabilivolt with the second end of described the second resistance simultaneously, the positive pole of described the first stabilivolt is connected with ground wire, the second end of described the 3rd resistance is connected with the emitter of described the 3rd triode, the base stage of described the 3rd triode is connected with the emitter of described the 4th triode with the second end of described the first potentiometer simultaneously, the base stage of described the first triode is connected with the sliding end of described the first potentiometer, the second end of described the 4th resistance is connected with the collector of described the 5th triode with the base stage of described the 4th triode simultaneously, the collector while of described the first triode and the emitter of described the 5th triode, the first end of described the 6th resistance is connected with the positive pole of described the second stabilivolt, the base stage of described the 5th triode is connected with the sliding end of described the second potentiometer, the negative pole while of described the second stabilivolt and the first end of described the second potentiometer, the collector of described the 3rd triode, the first end of described the second electric capacity, the emitter of described the second triode is connected with positive source output terminal, the second end of described the second electric capacity is connected with ground wire, the second end while of described the 6th resistance and the second end of described the second potentiometer, the first end of described the 5th resistance, the second end of described the first electric capacity, power cathode input end is connected with power cathode output terminal, the second end of described the 5th resistance is connected with the collector of described the 4th triode.
2. automatic regulation type voltage stabilizer according to claim 1, is characterized in that: described the first triode, described the 3rd triode and described the 4th triode are positive-negative-positive triode, and described the second triode and described the 5th triode are NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310083761.3A CN104049661A (en) | 2013-03-15 | 2013-03-15 | Automatic adjustment type voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310083761.3A CN104049661A (en) | 2013-03-15 | 2013-03-15 | Automatic adjustment type voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104049661A true CN104049661A (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310083761.3A Pending CN104049661A (en) | 2013-03-15 | 2013-03-15 | Automatic adjustment type voltage stabilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578782A (en) * | 2015-01-15 | 2015-04-29 | 哈尔滨电工仪表研究所 | Module special for carrier power source of electric energy meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06318119A (en) * | 1993-05-07 | 1994-11-15 | Toshiba Corp | Stabilized power unit |
| JPH11305855A (en) * | 1998-04-27 | 1999-11-05 | Mitsubishi Electric Corp | Power source device |
| CN202748689U (en) * | 2012-07-02 | 2013-02-20 | 成都默一科技有限公司 | Voltage stabilizer with automatic recovery function after short circuit |
| CN203164813U (en) * | 2013-03-15 | 2013-08-28 | 成都瑞途电子有限公司 | Automatic adjustment voltage regulator |
| CN103368540A (en) * | 2013-07-26 | 2013-10-23 | 苏州智浦芯联电子科技有限公司 | Automatic-recovery-capable short circuit protection circuit for low dropout linear regulator |
-
2013
- 2013-03-15 CN CN201310083761.3A patent/CN104049661A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06318119A (en) * | 1993-05-07 | 1994-11-15 | Toshiba Corp | Stabilized power unit |
| JPH11305855A (en) * | 1998-04-27 | 1999-11-05 | Mitsubishi Electric Corp | Power source device |
| CN202748689U (en) * | 2012-07-02 | 2013-02-20 | 成都默一科技有限公司 | Voltage stabilizer with automatic recovery function after short circuit |
| CN203164813U (en) * | 2013-03-15 | 2013-08-28 | 成都瑞途电子有限公司 | Automatic adjustment voltage regulator |
| CN103368540A (en) * | 2013-07-26 | 2013-10-23 | 苏州智浦芯联电子科技有限公司 | Automatic-recovery-capable short circuit protection circuit for low dropout linear regulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578782A (en) * | 2015-01-15 | 2015-04-29 | 哈尔滨电工仪表研究所 | Module special for carrier power source of electric energy meter |
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Application publication date: 20140917 |