CN203883688U - DC voltage-stabilized power supply - Google Patents
DC voltage-stabilized power supply Download PDFInfo
- Publication number
- CN203883688U CN203883688U CN201420307365.4U CN201420307365U CN203883688U CN 203883688 U CN203883688 U CN 203883688U CN 201420307365 U CN201420307365 U CN 201420307365U CN 203883688 U CN203883688 U CN 203883688U
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- resistance
- triode
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- power supply
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Abstract
The utility model provides a DC voltage-stabilized power supply which belongs to the technical field of electronic devices, particularly relates to improvement of the DC voltage-stabilized power supply and provides the DC voltage-stabilized power supply which is good in stabilizing performance. A technical scheme in the utility model is that the DC voltage-stabilized power supply is characterized in that an output terminal of a transformer is connected to an input terminal of a rectifier bridge; a positive pole output terminal of the rectifier bridge is connected to one end of a capacitor, one end of a resistor R5 and a collector of a regulating triode; a negative pole output terminal of the rectifier bridge is connected to the other end of the capacitor, a positive pole of a voltage-stabilizing diode, one end of a resistor R2 and one end of a resistor R4; a base of the regulating triode is connected to the other end of the resistor R5 and the collector of an amplifying triode; an emitter of the regulating triode is connected to one end of a resistor R3, one end of a resistor R1 and the other end of the resistor R4; the base of the amplifying triode is connected to the other end of the resistor R1 and the other end of the resistor R2; and the emitter of the amplifying triode is connected to the other end of the resistor R3 and the negative pole of the voltage-stabilizing diode.
Description
Technical field
The utility model belongs to technical field of electronic equipment, relates to specifically a kind of improvement of D.C. regulated power supply.
Background technology
D.C. regulated power supply is a kind of common electronic instrument, is widely used in electronic circuit field.
Stabilized voltage power supply is generally made up of transformer, rectifier and pressurizer three parts, and transformer becomes needed mortgage civil power alternating voltage and exchanges.After filtering, pressurizer becomes galvanic current unsettled direct voltage and presses output.
Existing direct current stabilizer power supply is perfect not enough aspect voltage stabilizing, when the variable quantity of voltage hour, voltage stabilizing aspect performance sensitive not.
Summary of the invention
The utility model is exactly for the problems referred to above, and a kind of D.C. regulated power supply that a kind of voltage regulation performance is good is provided.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technical scheme,
The utility model D.C. regulated power supply comprises transformer, rectifier bridge, electric capacity, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, adjusts triode, amplifying triode and voltage stabilizing didoe, it is characterized in that: the input of transformer is connected with power supply, the output of transformer is connected with rectifier bridge input, and the cathode output end of rectifier bridge is connected with electric capacity one end, resistance R 5 one end and the collector electrode of adjusting triode; The cathode output end of rectifier bridge is connected with the electric capacity other end, voltage stabilizing didoe positive pole, resistance R 2 one end and resistance R 4 one end; The base stage of adjusting triode is connected with amplifying triode collector electrode with resistance R 5 other ends; The emitter of adjusting triode is connected with resistance R 3 one end, resistance R 1 one end and resistance R 4 other ends; The base stage of amplifying triode is connected with resistance R 1 other end, resistance R 2 other ends; The emitter of amplifying triode is connected with the negative pole of resistance R 3 other ends and voltage stabilizing didoe.
As a kind of preferred version, the rectifier bridge that described rectifier bridge is made up of four diodes.
The beneficial effects of the utility model:
The utility model is adjusted output voltage the base stage of triode after amplifying triode is sent out greatly in access, and by R5, R1, R2 dividing potential drop, makes output voltage keep stablizing, and therefore, the utility model voltage regulation performance is better, and output voltage is more stable.
Brief description of the drawings
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation, some example embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that not departing from spirit and scope of the present utility model, can revise described embodiment by various mode.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection range of claim.
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As shown in Figure 1, the present embodiment is to provide a kind of D.C. regulated power supply that stability is provided, and it comprises transformer 1, rectifier bridge 2, capacitor C, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, adjusts triode T1, amplifying triode T2 and voltage stabilizing didoe D.The input of transformer 1 is connected with power supply, and the output of transformer 1 is connected with rectifier bridge 2 inputs, and the cathode output end of rectifier bridge 2 is connected with capacitor C one end, resistance R 5 one end and the collector electrode of adjusting triode T1.
The cathode output end of the rectifier bridge 2 of the present embodiment is connected with the capacitor C other end, voltage stabilizing didoe D positive pole, resistance R 2 one end and resistance R 4 one end; The base stage of adjusting triode T1 is connected with amplifying triode T2 collector electrode with resistance R 5 other ends; The emitter of adjusting triode T1 is connected with resistance R 3 one end, resistance R 1 one end and resistance R 4 other ends; The base stage of amplifying triode T2 is connected with resistance R 1 other end, resistance R 2 other ends; The emitter of amplifying triode T2 is connected with the negative pole of voltage stabilizing didoe D with resistance R 3 other ends.
In the present embodiment, the rectifier bridge that rectifier bridge 2 is made up of four diodes.The present embodiment in use, is adjusted output voltage the base stage of triode T1 after amplifying triode is sent out greatly in access, and by R5, R1, R2 dividing potential drop, make output voltage keep stable, therefore, the utility model voltage regulation performance is better, and output voltage is more stable.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the definite protection range of claims that the utility model is submitted to.
Claims (2)
1. a D.C. regulated power supply, comprise transformer, rectifier bridge, electric capacity, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, adjust triode, amplifying triode and voltage stabilizing didoe, it is characterized in that: the input of described transformer is connected with power supply, the output of described transformer is connected with rectifier bridge input, and the cathode output end of described rectifier bridge is connected with electric capacity one end, resistance R 5 one end and the collector electrode of adjusting triode; The cathode output end of described rectifier bridge is connected with the electric capacity other end, voltage stabilizing didoe positive pole, resistance R 2 one end and resistance R 4 one end; The base stage of described adjustment triode is connected with amplifying triode collector electrode with resistance R 5 other ends; The emitter of described adjustment triode is connected with resistance R 3 one end, resistance R 1 one end and resistance R 4 other ends; The base stage of described amplifying triode is connected with resistance R 1 other end, resistance R 2 other ends; The emitter of described amplifying triode is connected with the negative pole of resistance R 3 other ends and voltage stabilizing didoe.
2. a kind of D.C. regulated power supply according to claim 1, is characterized in that: the rectifier bridge that described rectifier bridge is made up of four diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307365.4U CN203883688U (en) | 2014-06-03 | 2014-06-03 | DC voltage-stabilized power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420307365.4U CN203883688U (en) | 2014-06-03 | 2014-06-03 | DC voltage-stabilized power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883688U true CN203883688U (en) | 2014-10-15 |
Family
ID=51684152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420307365.4U Expired - Fee Related CN203883688U (en) | 2014-06-03 | 2014-06-03 | DC voltage-stabilized power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467489A (en) * | 2014-12-24 | 2015-03-25 | 陈畅 | General voltage stabilizing power source |
-
2014
- 2014-06-03 CN CN201420307365.4U patent/CN203883688U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467489A (en) * | 2014-12-24 | 2015-03-25 | 陈畅 | General voltage stabilizing power source |
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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: 20141015 Termination date: 20160603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |