CN203056993U - Voltage stabilizer power source having function of dual filtering - Google Patents
Voltage stabilizer power source having function of dual filtering Download PDFInfo
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- CN203056993U CN203056993U CN 201220648509 CN201220648509U CN203056993U CN 203056993 U CN203056993 U CN 203056993U CN 201220648509 CN201220648509 CN 201220648509 CN 201220648509 U CN201220648509 U CN 201220648509U CN 203056993 U CN203056993 U CN 203056993U
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- triode
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- filter circuit
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- rectifier bridge
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Abstract
The utility model discloses a voltage stabilizer power source having a function of dual filtering and mainly solves problems of complex structure of an anti-interference power source and relatively high cost existing in the prior art. The voltage stabilizer power source having the function of dual filtering comprises a current transformer L, a rectifier bridge U1, a T-shaped filter circuit of which an input end is connected with the rectifier bridge U1, a triode Q1 of which a collector electrode is connected with the T-shaped filter circuit, a triode Q2 of which a collector electrode is connected with a base electrode of the triode Q1, and a low pass filter circuit connected with an emitter electrode of the triode Q2, wherein an input end of the rectifier bridge U1 is connected with the current transformer L, and the rectifier bridge U1 is formed by connecting four diodes mutually. The voltage stabilizer power source having the function of dual filtering has advantages of relatively good anti-interference capability, low cost, small volume and quite high practical values and popularization values.
Description
Technical field
The utility model relates to a kind of power supply, specifically, relates to a kind of stabilized voltage power supply with double-smoothing function.
Background technology
Power supply is the indispensable devices of most of electric equipments, for can normally being moved, each electric equipment need guarantee the stability that power supply is powered as much as possible, thereby need use a lot of anti-interference equipments, can cause power volume bigger like this, cost is higher, is unfavorable for some mini-plant uses cheaply.
The utility model content
The purpose of this utility model is to provide a kind of stabilized voltage power supply with double-smoothing function, mainly solves the high accuracy anti-jamming power-supply complex structure that exists in the prior art, the cost problem of higher.
To achieve these goals, the technical solution adopted in the utility model is as follows:
The stabilized voltage power supply of band double-smoothing function, comprise current transformer L, the rectifier bridge U1 that is constituted by four interconnective diodes that input links to each other with current transformer L, the T type filter circuit that input links to each other with rectifier bridge U1, the triode Q1 that collector electrode links to each other with T type filter circuit, the triode Q2 that collector electrode links to each other with the base stage of triode Q1, the low-pass filter circuit that links to each other with the emitter of triode Q2.
Specifically, described T type filter circuit comprises the inductance L 1 that is in parallel with rectifier bridge U1, and all electrochemical capacitor C1 and the capacitor C 2 that is in parallel with inductance L 1 is connected in the resistance R 1 between inductance L 1 and the electrochemical capacitor C1; The collector electrode of described triode Q1 links to each other by resistance R 2 with base stage, and the emitter of the emitter of triode Q1 and triode Q2 links to each other by resistance R 3; The base stage of described triode Q2 is connected with variable resistor R5, the input of this variable resistor R5 by resistance R 4 link to each other with the emitter of triode Q1, output passes through resistance R 6 and links to each other with the emitter of triode Q2; Described low-pass filter circuit comprises the input that all is connected in resistance R 4 and the resistance R between the ground 7, capacitor C 3, inductance L 3, also is connected with inductance L 2 between the input of described inductance L 3 and resistance R 7.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is designed to one with filter circuit, power circuit, and has selected for use the components and parts that cost is minimum, effect is best to carry out circuit design according to actual conditions, accords with the demands of the market.
(2) adopt double-smoothing in the utility model, improved the antijamming capability of power circuit greatly, improved the stability of supply voltage.
(3) the utility model is simple in structure, uses less components and parts to realize anti-interference function, and with low cost, volume is small and exquisite, is fit to large-scale promotion application.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, the utility model discloses a kind of stabilized voltage power supply with double-smoothing function, comprise current transformer L, the rectifier bridge U1 that is constituted by four interconnective diodes that input links to each other with current transformer L, the T type filter circuit that input links to each other with rectifier bridge U1, the triode Q1 that collector electrode links to each other with T type filter circuit, the triode Q2 that collector electrode links to each other with the base stage of triode Q1, the low-pass filter circuit that links to each other with the emitter of triode Q2.
Specifically, described T type filter circuit comprises the inductance L 1 that is in parallel with rectifier bridge U1, and all electrochemical capacitor C1 and the capacitor C 2 that is in parallel with inductance L 1 is connected in the resistance R 1 between inductance L 1 and the electrochemical capacitor C1; The collector electrode of described triode Q1 links to each other by resistance R 2 with base stage, and the emitter of the emitter of triode Q1 and triode Q2 links to each other by resistance R 3; The base stage of described triode Q2 is connected with variable resistor R5, the input of this variable resistor R5 by resistance R 4 link to each other with the emitter of triode Q1, output passes through resistance R 6 and links to each other with the emitter of triode Q2; Described low-pass filter circuit comprises the input that all is connected in resistance R 4 and the resistance R between the ground 7, capacitor C 3, inductance L 3, also is connected with inductance L 2 between the input of described inductance L 3 and resistance R 7.
According to above-described embodiment, just can realize the utility model well.
Claims (5)
1. be with the stabilized voltage power supply of double-smoothing function, it is characterized in that, comprise current transformer L, the rectifier bridge U1 that is constituted by four interconnective diodes that input links to each other with current transformer L, the T type filter circuit that input links to each other with rectifier bridge U1, the triode Q1 that collector electrode links to each other with T type filter circuit, the triode Q2 that collector electrode links to each other with the base stage of triode Q1, the low-pass filter circuit that links to each other with the emitter of triode Q2.
2. the stabilized voltage power supply of band double-smoothing function according to claim 1, it is characterized in that, described T type filter circuit comprises the inductance L 1 that is in parallel with rectifier bridge U1, and all electrochemical capacitor C1 and the capacitor C 2 that is in parallel with inductance L 1 is connected in the resistance R 1 between inductance L 1 and the electrochemical capacitor C1.
3. the stabilized voltage power supply of band double-smoothing function according to claim 2 is characterized in that, the collector electrode of described triode Q1 links to each other by resistance R 2 with base stage, and the emitter of the emitter of triode Q1 and triode Q2 links to each other by resistance R 3.
4. the stabilized voltage power supply of band double-smoothing function according to claim 3, it is characterized in that, the base stage of described triode Q2 is connected with variable resistor R5, the input of this variable resistor R5 by resistance R 4 link to each other with the emitter of triode Q1, output passes through resistance R 6 and links to each other with the emitter of triode Q2.
5. the stabilized voltage power supply of band double-smoothing function according to claim 4, it is characterized in that, described low-pass filter circuit comprises the input that all is connected in resistance R 4 and the resistance R between the ground 7, capacitor C 3, inductance L 3, also is connected with inductance L 2 between the input of described inductance L 3 and resistance R 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648509 CN203056993U (en) | 2012-11-30 | 2012-11-30 | Voltage stabilizer power source having function of dual filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648509 CN203056993U (en) | 2012-11-30 | 2012-11-30 | Voltage stabilizer power source having function of dual filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056993U true CN203056993U (en) | 2013-07-10 |
Family
ID=48739910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220648509 Expired - Fee Related CN203056993U (en) | 2012-11-30 | 2012-11-30 | Voltage stabilizer power source having function of dual filtering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056993U (en) |
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2012
- 2012-11-30 CN CN 201220648509 patent/CN203056993U/en not_active Expired - Fee Related
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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: 20130710 Termination date: 20131130 |