CN106026669A - Constant-voltage output power supply - Google Patents
Constant-voltage output power supply Download PDFInfo
- Publication number
- CN106026669A CN106026669A CN201610517147.7A CN201610517147A CN106026669A CN 106026669 A CN106026669 A CN 106026669A CN 201610517147 A CN201610517147 A CN 201610517147A CN 106026669 A CN106026669 A CN 106026669A
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- CN
- China
- Prior art keywords
- audion
- pole
- transformator
- diode
- inductance coil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a constant-voltage output power supply, which is characterized by mainly comprising a transformer T, a diode D1, a triode VT5, a base trigger circuit respectively connected with the primary-side inductive coil L1 and the primary-side inductive coil L2 of the transformer T, and a resistor R1. One end of the resistor R1 is connected with the base trigger circuit, and the other end of the resistor R1 forms an input end together with the P electrode of the diode D1. According to the technical scheme of the invention, the input voltage is monitored, and the voltage is regulated in real time. Therefore, the voltage is maintained within a constant range. In this way, even when the commercial power fluctuates, the output voltage is ensured to be constant. As a result, the power supply can better supply power to electronic devices.
Description
Technical field
The present invention relates to electronic applications, specifically refer to a kind of constant voltage out-put supply.
Background technology
Along with the high speed development of electronic technology, the kind of electronic equipment also gets more and more, to the life band of people
Carry out the biggest enjoyment.Any electronic equipment all be unable to do without reliable power supply, and the function of current electronic equipment is more
Coming the most diversified, they are more and more higher to the requirement of power supply.But current power supply stability is relatively low, hold
It is vulnerable to civil power influence of fluctuations, causes its output voltage unstable, have a strong impact on the service life of electronic equipment.
Summary of the invention
It is an object of the invention to solve the defect that current power supply stability is relatively low, it is provided that a kind of constant voltage output
Power supply.
The purpose of the present invention is by following technical proposals reality: a kind of constant voltage out-put supply, mainly by transformator T,
Diode D1, audion VT5, respectively with former limit inductance coil L1 and the former limit inductance coil of transformator T
Base stage that L2 is connected triggers circuit, one end trigger with base stage circuit be connected, the other end and diode D1
P pole be collectively forming the resistance R1 of input, positive pole and the secondary inductance coil L2 of transformator T non-with
The electric capacity C6 that name end is connected, negative pole colelctor electrode with audion VT5 after resistance R6 is connected, respectively
Trigger the sample circuit that circuit is connected with audion VT5 and base stage, and with the secondary inductance of transformator T
The voltage-stabilizing output circuit composition that coil L3 is connected；The N pole of described diode D1 and the former limit of transformator T
The Same Name of Ends of inductance coil L1 is connected.
Further, described base stage triggers circuit by audion VT1, audion VT2, positive pole and diode
The polar capacitor that the N pole of D1 is connected, negative pole emitter stage with audion VT1 after resistance R3 is connected
C1, resistance R2, the N pole and three being serially connected between the N pole of diode D1 and the colelctor electrode of audion VT1
The diode D2 that the base stage of pole pipe VT1 is connected, P pole is connected with the emitter stage of audion VT2, with
And the electric capacity that positive pole is connected with the N pole of diode D1, negative pole is connected with the colelctor electrode of audion VT2
C2 forms；The emitter stage of described audion VT2 is connected with the emitter stage of audion VT1, its colelctor electrode
Be connected with the non-same polarity of the former limit inductance coil L1 of transformator T, its base stage is then connected with sample circuit；
The former Same Name of Ends of limit inductance coil L2 of described transformator T is connected with the emitter stage of audion VT2；Institute
The negative pole stating polar capacitor C1 is connected with sample circuit.
Described sample circuit is by audion VT3, audion VT4, amplifier P, positive pole and polar capacitor C1
The electric capacity C3 that negative pole is connected, negative pole is connected with the base stage of audion VT3, be serially connected in audion VT2
Base stage and the colelctor electrode of audion VT4 between resistance R4, the emitter stage phase of positive pole and audion VT4
Connect, the electric capacity C4 that is connected with the emitter stage of audion VT3 of negative pole, be serially connected in the positive pole of amplifier P with
Resistance R5 between outfan, and positive pole is connected with the negative pole of amplifier P, negative pole and audion VT3
Emitter stage be connected while ground connection electric capacity C5 composition；The base stage of described audion VT4 and audion
The colelctor electrode of VT3 is connected, its colelctor electrode is connected with the positive pole of amplifier P；Described audion VT5's
Base stage is connected with the outfan of amplifier P, its emitter stage is connected with the emitter stage of audion VT3.
Described voltage-stabilizing output circuit is connected by the non-same polarity of P pole with the secondary inductance coil L3 of transformator T
Connect, the Same Name of Ends of the secondary inductance coil L3 of N pole and transformator T is collectively forming the Zener diode of outfan
D3, positive pole is connected with the N pole of Zener diode D3, negative pole after resistance R7 with the pair of transformator T
The electric capacity C7 that the Same Name of Ends of limit inductance coil L3 is connected, and the N pole of N pole and Zener diode D3
Be connected, Zener diode that P pole then Same Name of Ends with the secondary inductance coil L3 of transformator T is connected
D4 forms.
The present invention compared with prior art has the following advantages and beneficial effect:
The voltage of input can be monitored by the present invention, and is adjusted voltage in real time, makes voltage maintain
In constant scope, so, even if fluctuation occurs in civil power, the present invention can also export constant voltage,
Can be preferably power electronic equipment.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by transformator T, diode D1, audion VT5, respectively with change
Base stage that the former limit inductance coil L1 and former limit inductance coil L2 of depressor T is connected triggers circuit, one end with
Base stage triggers that circuit is connected, the P pole of the other end and diode D1 is collectively forming the resistance R1 of input, just
Pole is connected with the non-same polarity of the secondary inductance coil L2 of transformator T, negative pole after resistance R6 with three poles
The electric capacity C6 that the colelctor electrode of pipe VT5 is connected, triggers circuit with audion VT5 and base stage respectively and is connected
Sample circuit, and be connected with the secondary inductance coil L3 of transformator T voltage-stabilizing output circuit composition；
The N pole of described diode D1 is connected with the Same Name of Ends of the former limit inductance coil L1 of transformator T.
Described base stage triggers circuit by audion VT1, audion VT2, resistance R2, resistance R3, polarity
Electric capacity C1, electric capacity C2 and diode D2 form.
Wherein, the positive pole of polar capacitor C1 is connected with the N pole of diode D1, its negative pole is through resistance R3
Emitter stage with audion VT1 is connected afterwards.Resistance R2 is serially connected in N pole and the audion of diode D1
Between the colelctor electrode of VT1.The N pole of diode D2 is connected with the base stage of audion VT1, its P pole with
The emitter stage of audion VT2 is connected.The positive pole of electric capacity C2 is connected with the N pole of diode D1, it
Negative pole is connected with the colelctor electrode of audion VT2.
The emitter stage of described audion VT2 is connected with the emitter stage of audion VT1, its colelctor electrode and transformation
The non-same polarity of the former limit inductance coil L1 of device T is connected, its base stage is then connected with sample circuit.Described
The former Same Name of Ends of limit inductance coil L2 of transformator T is connected with the emitter stage of audion VT2.Described pole
The negative pole of property electric capacity C1 is connected with sample circuit.
It addition, described sample circuit is by audion VT3, audion VT4, amplifier P, resistance R4, electricity
Resistance R5, electric capacity C3, electric capacity C4 and electric capacity C5.
During connection, the positive pole of electric capacity C3 is connected with the negative pole of polar capacitor C1, its negative pole and audion VT3
Base stage be connected.Resistance R4 is serially connected between the base stage of audion VT2 and the colelctor electrode of audion VT4.
The positive pole of electric capacity C4 is connected with the emitter stage of audion VT4, the emitter stage of its negative pole and audion VT3
It is connected.Resistance R5 is serially connected between positive pole and the outfan of amplifier P.The positive pole of electric capacity C5 and amplification
Ground connection while the negative pole of device P is connected, its negative pole is connected with the emitter stage of audion VT3.
Meanwhile, the base stage of described audion VT4 be connected with the colelctor electrode of audion VT3, its colelctor electrode with
The positive pole of amplifier P is connected.The base stage of described audion VT5 is connected with the outfan of amplifier P,
Its emitter stage is connected with the emitter stage of audion VT3.
Described voltage-stabilizing output circuit is by Zener diode D3, Zener diode D4, electric capacity C7 and resistance
R7 forms.During connection, the P pole of Zener diode D3 is non-same with the secondary inductance coil L3's of transformator T
Name end is connected, its N pole is collectively forming outfan with the Same Name of Ends of the secondary inductance coil L3 of transformator T.
The positive pole of electric capacity C7 is connected with the N pole of Zener diode D3, its negative pole after resistance R7 with transformator
The Same Name of Ends of the secondary inductance coil L3 of T is connected.The N pole of Zener diode D4 and Zener diode D3
N pole be connected, its P pole then Same Name of Ends with the secondary inductance coil L3 of transformator T is connected.
The voltage of input can be monitored by the present invention, and is adjusted voltage in real time, makes voltage maintain
In constant scope, so, even if fluctuation occurs in civil power, the present invention can also export constant voltage,
Can be preferably power electronic equipment.
As it has been described above, just can well realize the present invention.
Claims (4)
1. a constant voltage out-put supply, it is characterised in that: main by transformator T, diode D1, audion
VT5, the base stage being connected with the former limit inductance coil L1 and former limit inductance coil L2 of transformator T respectively is touched
Power Generation Road, one end is connected with base stage triggering circuit, the other end is collectively forming input with the P pole of diode D1
The resistance R1 of end, positive pole is connected with the non-same polarity of the secondary inductance coil L2 of transformator T, negative pole warp
The electric capacity C6 that after resistance R6, colelctor electrode with audion VT5 is connected, respectively with audion VT5 and base stage
Trigger the sample circuit that circuit is connected, and the voltage stabilizing being connected with the secondary inductance coil L3 of transformator T
Output circuit forms；The Same Name of Ends of the former limit inductance coil L1 of the N pole of described diode D1 and transformator T
It is connected.
A kind of constant voltage out-put supply the most according to claim 1, it is characterised in that: described base stage triggers
Circuit is by audion VT1, audion VT2, and positive pole is connected with the N pole of diode D1, negative pole is through electricity
The polar capacitor C1 being connected with the emitter stage of audion VT1 after resistance R3, is serially connected in the N of diode D1
Resistance R2, N pole between the colelctor electrode of pole and audion VT1 is connected with the base stage of audion VT1, P
The diode D2 that pole is connected with the emitter stage of audion VT2, and the N pole phase of positive pole and diode D1
The electric capacity C2 composition that connection, negative pole are connected with the colelctor electrode of audion VT2；Described audion VT2's
Emitter stage is connected with the emitter stage of audion VT1, the former limit inductance coil L1 of its colelctor electrode and transformator T
Non-same polarity be connected, its base stage is then connected with sample circuit；The former limit inductor wire of described transformator T
The Same Name of Ends of circle L2 is connected with the emitter stage of audion VT2；The negative pole of described polar capacitor C1 and sampling
Circuit is connected.
A kind of constant voltage out-put supply the most according to claim 2, it is characterised in that: described sample circuit
By audion VT3, audion VT4, amplifier P, positive pole is connected with the negative pole of polar capacitor C1, bears
The electric capacity C3 that pole is connected with the base stage of audion VT3, is serially connected in base stage and the audion of audion VT2
Resistance R4 between the colelctor electrode of VT4, positive pole is connected with the emitter stage of audion VT4, negative pole and three poles
The electric capacity C4 that the emitter stage of pipe VT3 is connected, is serially connected in the resistance between positive pole and the outfan of amplifier P
R5, and positive pole is connected with the negative pole of amplifier P, negative pole is connected with the emitter stage of audion VT3
The electric capacity C5 composition of ground connection simultaneously；The base stage of described audion VT4 is connected with the colelctor electrode of audion VT3
Connect, its colelctor electrode is connected with the positive pole of amplifier P；The base stage of described audion VT5 is with amplifier P's
Outfan is connected, its emitter stage is connected with the emitter stage of audion VT3.
A kind of constant voltage out-put supply the most according to claim 3, it is characterised in that: described voltage stabilizing exports
Circuit is connected by the non-same polarity of P pole with the secondary inductance coil L3 of transformator T, N pole and transformator T
The Same Name of Ends of secondary inductance coil L3 be collectively forming the Zener diode D3 of outfan, positive pole and voltage stabilizing two
The N pole of pole pipe D3 is connected, negative pole same with the secondary inductance coil L3 of transformator T after resistance R7
The name electric capacity C7 that is connected of end, and N pole is connected with the N pole of Zener diode D3, P pole then with change
The Zener diode D4 composition that the Same Name of Ends of the secondary inductance coil L3 of depressor T is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517147.7A CN106026669A (en) | 2016-07-04 | 2016-07-04 | Constant-voltage output power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517147.7A CN106026669A (en) | 2016-07-04 | 2016-07-04 | Constant-voltage output power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106026669A true CN106026669A (en) | 2016-10-12 |
Family
ID=57106760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610517147.7A Pending CN106026669A (en) | 2016-07-04 | 2016-07-04 | Constant-voltage output power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106026669A (en) |
-
2016
- 2016-07-04 CN CN201610517147.7A patent/CN106026669A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
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| WD01 | Invention patent application deemed withdrawn after publication |