CN106160532A - A kind of based on the switch-type stabilized power circuit comparing amplifying circuit - Google Patents
A kind of based on the switch-type stabilized power circuit comparing amplifying circuit Download PDFInfo
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- CN106160532A CN106160532A CN201610620702.9A CN201610620702A CN106160532A CN 106160532 A CN106160532 A CN 106160532A CN 201610620702 A CN201610620702 A CN 201610620702A CN 106160532 A CN106160532 A CN 106160532A
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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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of based on the switch-type stabilized power circuit comparing amplifying circuit, it is characterised in that: mainly by transformer T, diode rectifier U1, triode VT3, resistance R8, electric capacity C1, electric capacity C4, diode D3, diode D4, power supply processing circuit, compare amplifying circuit and three-terminal voltage-stabilizing circuit forms.The present invention can power electrical network or mains-supplied is processed, it is thus possible to provide more galvanic current source for electrical equipment such as television set, electronic computer and numerical control devices, in order to improves the serviceability of electrical equipment, is suitable for promoting the use.
Description
Technical field
The present invention relates to a kind of power circuit, particularly relate to a kind of based on the switch-type stabilized power supply electricity comparing amplifying circuit
Road.
Background technology
Switch-type stabilized power circuit, because its efficiency is high, lightweight and caloric value is few, is usually used in television set, electronic computer
With on the electrical equipment such as numerical control device, during use, electrical network alternating current can be converted to direct current by switch mode power.With scientific and technical
Progressive, the electrical equipment such as television set, electronic computer and numerical control device all is ceaselessly being updated regenerating, and these electrical equipment are to power supply
Stability requirement is also more and more higher, and traditional switch mode power can not meet the use needs of electrical equipment.
Content of the invention
It is an object of the invention to provide a kind of based on the switch-type stabilized power circuit comparing amplifying circuit, to expect energy
There is provided more galvanic current for electrical equipment such as television set, electronic computer and numerical control devices.
The present invention is achieved through the following technical solutions:
A kind of based on the switch-type stabilized power circuit comparing amplifying circuit, mainly by transformer T, diode rectifier
U1, triode VT3, positive pole is connected with the positive output end of diode rectifier U1, negative pole is negative defeated with diode rectifier U1's
Going out the electric capacity C1 that end is connected, the power supply processing circuit being connected with positive pole and the negative pole of electric capacity C1 respectively, P pole is through comparing amplification
Be connected with power supply processing circuit after circuit, diode D4 that N pole is connected with the emitter stage of triode VT3, at P pole and power supply
The reason diode D3 that circuit is connected, N pole is connected with the colelctor electrode of triode VT3 after resistance R8, positive pole and triode VT3
The electric capacity C4 that colelctor electrode is connected, negative pole is connected with the negative pole of electric capacity C1, and respectively with the base stage of triode VT3, send out
The three-terminal voltage-stabilizing circuit composition that emitter-base bandgap grading is connected with the negative pole of electric capacity C4；The emitter stage of described triode VT3 also with diode D3
N pole be connected, the two ends of the former limit inductance coil of described transformer T composition power input, described diode rectifier U1
An input be connected with the non-same polarity of the secondary inductance coil of transformer T, its another input and transformer T
The Same Name of Ends of secondary inductance coil is connected.
Further, the described amplifying circuit that compares is by operational amplifier P, triode VT5, triode VT6, one end and power supply
Process circuit is connected, the other end is connected resistance R13 with the positive input terminal of operational amplifier P, positive pole after resistance R14 and
The negative input end of operational amplifier P is connected, the electric capacity C7 of minus earth, and P pole is connected with the positive pole of electric capacity C7 after resistance R15
Connect, diode D8 that N pole is connected with the emitter stage of triode VT5, P pole is connected with the positive input terminal of operational amplifier P, N
The diode D7 that pole is connected with the colelctor electrode of triode VT5 after resistance R16, the output phase of positive pole and operational amplifier P
Connect, the electric capacity C8 that is connected with the base stage of triode VT5 of negative pole, positive pole is connected with the colelctor electrode of triode VT5, negative pole and
The electric capacity C9 that the emitter stage of triode VT6 is connected, one end is connected with the emitter stage of triode VT5, the other end and triode
The resistance R17 that the colelctor electrode of VT6 is connected, and P pole is connected with the emitter stage of triode VT5 after resistance R18, N pole with
The diode D9 composition that the base stage of triode VT6 is connected；The base stage of described triode VT6 is also extremely connected with the P of diode D4
Connect.
Further, described power supply processing circuit is by triode VT1, triode VT2, is serially connected in the base of triode VT1
Resistance R1 between the positive pole of pole and electric capacity C1, the resistance R2 being serially connected between the base stage of triode VT1 and the negative pole of electric capacity C1,
The diode D1 that P pole is connected with the positive pole of electric capacity C1, N pole is connected with the colelctor electrode of triode VT2 after resistance R3, concatenation
Resistance R4 between the N pole and the base stage of triode VT2 of diode D1, is serially connected in the N pole of diode D1 with triode VT1's
Resistance R5 between colelctor electrode, positive pole is connected with the base stage of triode VT2, negative pole after resistance R6 with triode VT1 send out
The electric capacity C2 that emitter-base bandgap grading is connected, positive pole is connected with the negative pole of electric capacity C2 after resistance R7, negative pole is connected with the negative pole of electric capacity C1
The electric capacity C3 connecing, and the diode D2 that P pole is connected with the negative pole of electric capacity C3, N pole is connected with the emitter stage of triode VT1
Composition；The negative pole of described electric capacity C2 is connected with the P pole of diode D3, and the negative pole of described electric capacity C3 is connected with the negative pole of electric capacity C4
Connecing, the emitter stage of described triode VT2 is connected with the positive input terminal of operational amplifier P after resistance R13.
Further, described three-terminal voltage-stabilizing circuit is by three terminal regulator U2, triode VT4, and one end is with triode VT3's
The inductance L that emitter stage is connected, the other end is connected with the VOUT pin of three terminal regulator U2, positive pole after resistance R9 with three poles
Electric capacity C5, positive pole and the three-terminal voltage-stabilizing that the emitter stage of pipe VT3 is connected, negative pole is connected with the VOUT pin of three terminal regulator U2
The VIN of the electric capacity C6 that the VOUT pin of device U2 is connected, negative pole is connected with the negative pole of electric capacity C4, one end and three terminal regulator U2
The resistance R10 that pin is connected, the other end is connected with the negative pole of electric capacity C6, the VOUT pin phase of P pole and three terminal regulator U2
Connect, the Zener diode D5 that is connected with the colelctor electrode of triode VT4 of N pole, one end is connected with the base stage of triode VT4,
The resistance R11 that the other end is connected with the negative pole of electric capacity C6, and P pole is connected with the emitter stage of triode VT4 after resistance R12
Connect, diode D6 that N pole is connected with the VOUT pin of three terminal regulator U2 composition；The VIN pin of described three terminal regulator U2
Being connected with the base stage of triode VT3, its GND pin is grounded；The N pole of described diode D6 and the negative pole of electric capacity C6 collectively constitute
The output of three-terminal voltage-stabilizing circuit.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) electrical network can be powered by the present invention or mains-supplied is processed, it is thus possible to be television set, electronic computer sum
The electrical equipment such as control device provide more galvanic current source, in order to improve the serviceability of electrical equipment.
(2) present invention can effectively put forward high-tension resistance to pressure, and can control the middle zero migration of electric current
Within 0.5nA, ensure that the stability of the voltage and current that the present invention exports, it is thus possible to be further ensured that and provide for electrical equipment
More galvanic current source.
Brief description
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the circuit diagram of the comparison amplifying circuit 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 limited to this.
Embodiment
As shown in Figure 1, 2, the switch-type stabilized power circuit of the present invention, mainly by transformer T, diode rectifier U1,
Triode VT3, resistance R8, electric capacity C1, electric capacity C4, diode D3, diode D4, power supply processing circuit, compare amplifying circuit with
And three-terminal voltage-stabilizing circuit composition.
During connection, the positive pole of described electric capacity C1 is connected with the positive output end of diode rectifier U1, its negative pole and two poles
The negative output terminal of pipe rectifier U1 is connected.Described power supply processing circuit is connected with positive pole and the negative pole of electric capacity C1 respectively, institute
The P pole stating diode D4 is connected with power supply processing circuit after comparing amplifying circuit, the emitter stage of its N pole and triode VT3
It is connected.The P pole of described diode D3 is connected with power supply processing circuit, its N pole current collection with triode VT3 after resistance R8
Pole is connected.The positive pole of described electric capacity C4 is connected with the colelctor electrode of triode VT3, and its negative pole is connected with the negative pole of electric capacity C1
Connect.Described three-terminal voltage-stabilizing circuit is connected with the negative pole of the base stage of triode VT3, emitter stage and electric capacity C4 respectively.
Meanwhile, the emitter stage of described triode VT3 is also connected with the N pole of diode D3, the former limit electricity of described transformer T
The two ends composition power input of sense coil, this input can direct external civil power.One of described diode rectifier U1 defeated
Enter end to be connected with the non-same polarity of the secondary inductance coil of transformer T, the secondary inductance of its another input and transformer T
The Same Name of Ends of coil is connected.
Described power supply processing circuit is by triode VT1, triode VT2, resistance R1, resistance R2, resistance R3, resistance R4, electricity
Resistance R5, resistance R6, resistance R7, electric capacity C2, electric capacity C3, diode D1 and diode D2 composition.
During connection, described resistance R1 is serially connected between the base stage of triode VT1 and the positive pole of electric capacity C1, and described resistance R2 goes here and there
It is connected between the base stage of triode VT1 and the negative pole of electric capacity C1.The P pole of described diode D1 is connected with the positive pole of electric capacity C1,
Its N pole is connected with the colelctor electrode of triode VT2 after resistance R3.Described resistance R4 is serially connected in N pole and three poles of diode D1
Between the base stage of pipe VT2, described resistance R5 is serially connected between the N pole of diode D1 and the colelctor electrode of triode VT1.Described electric capacity
The positive pole of C2 is connected with the base stage of triode VT2, and its negative pole is connected with the emitter stage of triode VT1 after resistance R6.Institute
The positive pole stating electric capacity C3 is connected with the negative pole of electric capacity C2 after resistance R7, and its negative pole is connected with the negative pole of electric capacity C1.Described
The P pole of diode D2 is connected with the negative pole of electric capacity C3, and its N pole is connected with the emitter stage of triode VT1.Meanwhile, described electricity
The negative pole holding C2 is connected with the P pole of diode D3, and the negative pole of described electric capacity C3 is connected with the negative pole of electric capacity C4, described three poles
The emitter stage of pipe VT2 is connected with comparing amplifying circuit.
Described three-terminal voltage-stabilizing circuit is by three terminal regulator U2, triode VT4, inductance L, resistance R9, resistance R10, resistance
R11, resistance R12, electric capacity C5, electric capacity C6, Zener diode D5 and diode D6 form.
During connection, one end of described inductance L is connected with the emitter stage of triode VT3, its other end and three terminal regulator
The VOUT pin of U2 is connected.The positive pole of described electric capacity C5 is connected with the emitter stage of triode VT3 after resistance R9, its negative pole
It is connected with the VOUT pin of three terminal regulator U2.The positive pole of described electric capacity C6 is connected with the VOUT pin of three terminal regulator U2
Connecing, its negative pole is connected with the negative pole of electric capacity C4.One end of described resistance R10 is connected with the VIN pin of three terminal regulator U2,
Its other end is connected with the negative pole of electric capacity C6.The VOUT pin phase of the P pole of described Zener diode D5 and three terminal regulator U2
Connecting, its N pole is connected with the colelctor electrode of triode VT4.One end of described resistance R11 is connected with the base stage of triode VT4,
Its other end is connected with the negative pole of electric capacity C6.The P pole of described diode D6 emitter stage with triode VT4 after resistance R12
Being connected, its N pole is connected with the VOUT pin of three terminal regulator U2.Meanwhile, the VIN pin and three of described three terminal regulator U2
The base stage of pole pipe VT3 is connected, and its GND pin is grounded.The N pole of described diode D6 and the negative pole of electric capacity C6 collectively constitute three ends
The output of mu balanced circuit, the direct external connection electrical apparatus of this output.
As in figure 2 it is shown, the described amplifying circuit that compares is by operational amplifier P, triode VT5, triode VT6, resistance R13,
Resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C7, electric capacity C8, electric capacity C9, diode D7, diode
D8 and diode D9 composition.
During connection, one end of described resistance R13 is connected with the emitter stage of triode VT2, its other end and operation amplifier
The positive input terminal of device P is connected.The positive pole of described electric capacity C7 is connected with the negative input end of operational amplifier P after resistance R14,
Its minus earth.The P pole of described diode D8 is connected with the positive pole of electric capacity C7 after resistance R15, its N pole and triode VT5
Emitter stage be connected.The P pole of described diode D7 is connected with the positive input terminal of operational amplifier P, and its N pole is through resistance R16
It is connected with the colelctor electrode of triode VT5 afterwards.The positive pole of described electric capacity C8 is connected with the output of operational amplifier P, and it is born
Pole is connected with the base stage of triode VT5.The positive pole of described electric capacity C9 is connected with the colelctor electrode of triode VT5, its negative pole with
The emitter stage of triode VT6 is connected.One end of described resistance R17 is connected with the emitter stage of triode VT5, its other end with
The colelctor electrode of triode VT6 is connected.The P pole of described diode D9 is connected with the emitter stage of triode VT5 after resistance R18
Connecing, its N pole is connected with the base stage of triode VT6.The base stage of described triode VT6 is also connected with the P pole of diode D4.
The present invention can power electrical network or mains-supplied is processed, it is thus possible to be television set, electronic computer and numerical control
The electrical equipment such as device provide more galvanic current source, in order to improve the serviceability of electrical equipment.The present invention can also effectively carry
High-tension resistance to pressure, and the middle zero migration of electric current can be controlled within 0.5nA, ensure that the present invention exports
The stability of voltage and current, it is thus possible to be further ensured that and provide more galvanic current source for electrical equipment.
As described above, just can preferably realize the present invention.
Claims (4)
1. one kind based on the switch-type stabilized power circuit comparing amplifying circuit, it is characterised in that: main by transformer T, two poles
Pipe rectifier U1, triode VT3, positive pole is connected with the positive output end of diode rectifier U1, negative pole and diode rectifier
The electric capacity C1 that the negative output terminal of U1 is connected, the power supply processing circuit being connected with positive pole and the negative pole of electric capacity C1 respectively, P pole warp
Relatively be connected with power supply processing circuit after amplifying circuit, diode D4 that N pole is connected with the emitter stage of triode VT3, P pole
Be connected with power supply processing circuit, diode D3 that N pole is connected with the colelctor electrode of triode VT3 after resistance R8, positive pole with
The electric capacity C4 that the colelctor electrode of triode VT3 is connected, negative pole is connected with the negative pole of electric capacity C1, and respectively with triode VT3
Base stage, emitter stage be connected with the negative pole of electric capacity C4 three-terminal voltage-stabilizing circuit composition；The emitter stage of described triode VT3 also with
The N pole of diode D3 is connected, the two ends composition power input of the former limit inductance coil of described transformer T, described diode
One input of rectifier U1 is connected with the non-same polarity of the secondary inductance coil of transformer T, its another input with
The Same Name of Ends of the secondary inductance coil of transformer T is connected.
2. according to claim 1 a kind of based on the switch-type stabilized power circuit comparing amplifying circuit, it is characterised in that:
The described amplifying circuit that compares is connected with power supply processing circuit, separately by operational amplifier P, triode VT5, triode VT6, one end
The resistance R13 that one end is connected with the positive input terminal of operational amplifier P, positive pole negative defeated with operational amplifier P after resistance R14
Enter end be connected, the electric capacity C7 of minus earth, P pole is connected with the positive pole of electric capacity C7 after resistance R15, N pole and triode VT5
The diode D8 that is connected of emitter stage, P pole is connected with the positive input terminal of operational amplifier P, N pole after resistance R16 with three
The diode D7 that the colelctor electrode of pole pipe VT5 is connected, positive pole is connected with the output of operational amplifier P, negative pole and triode
The electric capacity C8 that the base stage of VT5 is connected, positive pole is connected with the colelctor electrode of triode VT5, the emitter stage of negative pole and triode VT6
The electric capacity C9 being connected, one end is connected with the emitter stage of triode VT5, the other end is connected with the colelctor electrode of triode VT6
Resistance R17, and P pole is connected with the emitter stage of triode VT5 after resistance R18, the base stage phase of N pole and triode VT6
The diode D9 composition connecting；The base stage of described triode VT6 is also connected with the P pole of diode D4.
3. according to claim 2 a kind of based on the switch-type stabilized power circuit comparing amplifying circuit, it is characterised in that:
Described power supply processing circuit, by triode VT1, triode VT2, is serially connected between the base stage of triode VT1 and the positive pole of electric capacity C1
Resistance R1, the resistance R2 being serially connected between the base stage of triode VT1 and the negative pole of electric capacity C1, the positive pole phase of P pole and electric capacity C1
The diode D1 that connection, N pole are connected with the colelctor electrode of triode VT2 after resistance R3, is serially connected in the N pole and three of diode D1
Resistance R4 between the base stage of pole pipe VT2, the resistance R5 being serially connected between the N pole of diode D1 and the colelctor electrode of triode VT1,
The electric capacity C2 that positive pole is connected with the base stage of triode VT2, negative pole is connected with the emitter stage of triode VT1 after resistance R6,
The electric capacity C3 that positive pole is connected with the negative pole of electric capacity C2 after resistance R7, negative pole is connected with the negative pole of electric capacity C1, and P pole with
The diode D2 composition that the negative pole of electric capacity C3 is connected, N pole is connected with the emitter stage of triode VT1；Described electric capacity C2's is negative
Pole is connected with the P pole of diode D3, and the negative pole of described electric capacity C3 is connected with the negative pole of electric capacity C4, described triode VT2's
Emitter stage is connected with the positive input terminal of operational amplifier P after resistance R13.
4. according to claim 3 a kind of based on the switch-type stabilized power circuit comparing amplifying circuit, it is characterised in that:
Described three-terminal voltage-stabilizing circuit is by three terminal regulator U2, triode VT4, and one end is connected with the emitter stage of triode VT3, the other end
The inductance L being connected with the VOUT pin of three terminal regulator U2, positive pole is connected with the emitter stage of triode VT3 after resistance R9
Connect, electric capacity C5 that negative pole is connected with the VOUT pin of three terminal regulator U2, the VOUT pin phase of positive pole and three terminal regulator U2
The electric capacity C6 that connection, negative pole are connected with the negative pole of electric capacity C4, one end is connected with the VIN pin of three terminal regulator U2, another
The resistance R10 that is connected with the negative pole of electric capacity C6 of end, P pole is connected with the VOUT pin of three terminal regulator U2, N pole and triode
The Zener diode D5 that the colelctor electrode of VT4 is connected, one end is connected with the base stage of triode VT4, the other end and electric capacity C6
The resistance R11 that negative pole is connected, and P pole is connected with the emitter stage of triode VT4 after resistance R12, N pole and three-terminal voltage-stabilizing
The diode D6 composition that the VOUT pin of device U2 is connected；The VIN pin of described three terminal regulator U2 and the base stage of triode VT3
Being connected, its GND pin is grounded；The N pole of described diode D6 and the negative pole of electric capacity C6 collectively constitute the defeated of three-terminal voltage-stabilizing circuit
Go out end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620702.9A CN106160532A (en) | 2016-07-29 | 2016-07-29 | A kind of based on the switch-type stabilized power circuit comparing amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620702.9A CN106160532A (en) | 2016-07-29 | 2016-07-29 | A kind of based on the switch-type stabilized power circuit comparing amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160532A true CN106160532A (en) | 2016-11-23 |
Family
ID=57327866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610620702.9A Pending CN106160532A (en) | 2016-07-29 | 2016-07-29 | A kind of based on the switch-type stabilized power circuit comparing amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160532A (en) |
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2016
- 2016-07-29 CN CN201610620702.9A patent/CN106160532A/en active Pending
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