CN106100311A - A kind of soft start mu balanced circuit - Google Patents
A kind of soft start mu balanced circuit Download PDFInfo
- Publication number
- CN106100311A CN106100311A CN201610604901.0A CN201610604901A CN106100311A CN 106100311 A CN106100311 A CN 106100311A CN 201610604901 A CN201610604901 A CN 201610604901A CN 106100311 A CN106100311 A CN 106100311A
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- China
- Prior art keywords
- pole
- audion
- diode
- electric capacity
- resistance
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of soft start mu balanced circuit, it is characterised in that: main by transformator T, diode rectifier U, audion VT4, resistance R3, resistance R4, electric capacity C1, electric capacity C4, diode D2, diode D3, soft start processes circuit and delay startup circuit composition.The present invention can realize the soft start to electronic product, and after making the present invention switch on power, output voltage is through a process started, and rises to set-point with slower speed, to protect electronic product not impacted by surge；During startup, the present invention also ensures that the optimum delay time of about 30 seconds；It is suitable for promoting the use.
Description
Technical field
The present invention relates to a kind of soft starting circuit, particularly relate to a kind of soft start mu balanced circuit.
Background technology
Along with science and technology development, electronic technology is able to fast development, and electronics categories is more and more abundanter, various respectively
The electronic product of sample enters into the family of common people so that daily life also be unable to do without electronic product.Due to various
The performance of electronic product is not quite similar, and some electronic products need soft start when using, in order to protection electronic product is on startup
Do not impacted by surge.But, the structure being currently used for realizing soft start is the most more complicated, and the delay time started is relatively
Long, thus use to user and bring great inconvenience.
Summary of the invention
It is an object of the invention to provide a kind of soft start mu balanced circuit, realize soft start to be solved being currently used for
Structure is the most more complicated, and the longer problem of delay time started.
The present invention is achieved through the following technical solutions:
A kind of soft start mu balanced circuit, mainly by transformator T, diode rectifier U, audion VT4, positive pole and diode
The electric capacity C1 that the positive output end of commutator U is connected, negative pole is connected with the negative output terminal of diode rectifier U, respectively with electricity
The soft start that is connected with negative pole of positive pole holding C1 processes circuit, and positive pole is connected with soft start process circuit, negative pole and electric capacity
The electric capacity C4 that the negative pole of C1 is connected, one end is connected with the positive pole of electric capacity C4, the other end is connected with the base stage of audion VT4
The diode D2 that resistance R3, P pole is connected with the negative pole of electric capacity C4, N pole is connected with the emitter stage of audion VT4, respectively
The delay startup circuit being connected with the emitter stage of audion VT4 and the P pole of diode D2, and P pole and delay startup circuit
Be connected, diode D3 composition that N pole colelctor electrode with audion VT4 after resistance R4 is connected；The former limit of described transformator T
The two ends composition power input of inductance coil, an input of described diode rectifier U and the secondary inductance of transformator T
The non-same polarity of coil is connected, its another input is connected with the Same Name of Ends of the secondary inductance coil of transformator T；Described
The N pole of diode D3 processes circuit with soft start and is connected.
Further, described soft start process circuit is by audion VT1, audion VT2, and audion VT3, positive pole is through resistance
The electric capacity C2 that after R1, the colelctor electrode with audion VT2 is connected, negative pole is connected with the emitter stage of audion VT3, one end and electricity
Hold the current collection of the resistance R2 that positive pole is connected, the other end is connected of C2, positive pole and audion VT3 with the base stage of audion VT2
The electric capacity C3 that pole is connected, negative pole is connected with the base stage of audion VT3, and P pole is connected with the emitter stage of audion VT3
Connect, diode D1 that N pole is connected with the base stage of audion VT3 composition；The base stage of described audion VT1 is with audion VT2's
Emitter stage is connected, and its colelctor electrode is connected with the colelctor electrode of audion VT2 and the positive pole of electric capacity C1 respectively, its emitter stage and two
The N pole of pole pipe D3 is connected；The colelctor electrode of described audion VT3 respectively with base stage and the positive pole phase of electric capacity C4 of audion VT2
Connecting, its emitter stage is connected with the negative pole of electric capacity C4.
Further, described delay startup circuit is by the collection of audion VT5, audion VT6, one end and audion VT5
The resistance R5 that electrode is connected, the other end is connected with the P pole of diode D2, positive pole is connected with the N pole of diode D3, negative pole
The electric capacity C5 being connected with the base stage of audion VT5, one end is connected with the positive pole of electric capacity C5, the other end and audion VT6
P pole with diode D2 after resistance R6, resistance R7, the P pole that emitter stage is connected is connected, N pole after resistance R8 with audion
The diode D4 that the colelctor electrode of VT6 is connected, one end is connected with the P pole of diode D4, the transmitting of the other end and audion VT6
The slide rheostat RP that pole is connected, and positive pole is connected with the N pole of diode D4, negative pole is extremely connected with the P of diode D2
The electric capacity C6 composition connect；The base stage of described audion VT5 is connected with the control end of slide rheostat RP, its colelctor electrode and three poles
The emitter stage of pipe VT4 is connected；The base stage of described audion VT6 collectively constitutes the defeated of delay startup circuit with the negative pole of electric capacity C6
Going out end, the base stage of this audion VT6 is also connected with the N pole of diode D3.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention can realize the soft start to electronic product, and after making the present invention switch on power, output voltage is through a startup
Process, rise to set-point with slower speed, to protect electronic product not impacted by surge.During startup,
The present invention also ensures that the optimum delay time of about 30 seconds.
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 limited to this.
Embodiment
As it is shown in figure 1, the soft start mu balanced circuit of the present invention, mainly by transformator T, diode rectifier U, audion
VT4, resistance R3, resistance R4, electric capacity C1, electric capacity C4, diode D2, diode D3, soft start processes circuit and delayed startup
Circuit forms.
During connection, the positive pole of described electric capacity C1 is connected with the positive output end of diode rectifier U, its negative pole and diode
The negative output terminal of commutator U is connected；Described soft start processes circuit and is connected with positive pole and the negative pole of electric capacity C1 respectively.Described
The positive pole of electric capacity C4 processes circuit with soft start and is connected, and negative pole is connected with the negative pole of electric capacity C1.One end of described resistance R3
Being connected with the positive pole of electric capacity C4, its other end is connected with the base stage of audion VT4.The P pole of described diode D2 and electric capacity
The negative pole of C4 is connected, and its N pole is connected with the emitter stage of audion VT4；Described delay startup circuit respectively with audion VT4
Emitter stage be connected with the P pole of diode D2.The P pole of described diode D3 is connected with delay startup circuit, and its N pole is through electricity
It is connected with the colelctor electrode of audion VT4 after resistance R4.
Meanwhile, the two ends composition power input of the former limit inductance coil of described transformator T, during use, this power supply inputs
End can be directly connected to civil power.One input of described diode rectifier U is non-of the same name with the secondary inductance coil of transformator T
End is connected, and its another input is connected with the Same Name of Ends of the secondary inductance coil of transformator T.The N of described diode D3
Pole processes circuit with soft start and is connected.
Described soft start processes circuit by audion VT1, audion VT2, audion VT3, resistance R1, resistance R2, electric capacity
C2, electric capacity C3 and diode D1 form.
During connection, the positive pole of described electric capacity C2 colelctor electrode with audion VT2 after resistance R1 is connected, its negative pole and three
The emitter stage of pole pipe VT3 is connected.One end of described resistance R2 is connected with the positive pole of electric capacity C2, its other end and audion
The base stage of VT2 is connected.The positive pole of described electric capacity C3 is connected with the colelctor electrode of audion VT3, and its negative pole is with audion VT3's
Base stage is connected.The P pole of described diode D1 is connected with the emitter stage of audion VT3, its N pole and the base stage of audion VT3
It is connected.Meanwhile, the base stage of described audion VT1 is connected with the emitter stage of audion VT2, its colelctor electrode respectively with audion
The colelctor electrode of VT2 is connected with the positive pole of electric capacity C1, and its emitter stage is connected with the N pole of diode D3.Described audion VT3's
Colelctor electrode is connected with the base stage of audion VT2 and the positive pole of electric capacity C4 respectively, and its emitter stage is connected with the negative pole of electric capacity C4.
Described delay startup circuit is by audion VT5, audion VT6, resistance R5, resistance R6, resistance R7, resistance R8, sliding
Dynamic rheostat RP, electric capacity C5, electric capacity C6 and diode D4 composition.
During connection, one end of described resistance R5 is connected with the colelctor electrode of audion VT5, and its other end is with diode D2's
P pole is connected.The positive pole of described electric capacity C5 is connected with the N pole of diode D3, and its negative pole is connected with the base stage of audion VT5
Connect.One end of described resistance R7 is connected with the positive pole of electric capacity C5, and its other end is connected with the emitter stage of audion VT6.Institute
State the P pole with diode D2 after resistance R6, the P pole of diode D4 to be connected, its N pole after resistance R8 with the collection of audion VT6
Electrode is connected.One end of described slide rheostat RP is connected with the P pole of diode D4, and its other end is with audion VT6's
Emitter stage is connected.The positive pole of described electric capacity C6 its negative pole that is connected with the N pole of diode D4 is extremely connected with the P of diode D2
Connect.
Meanwhile, the base stage of described audion VT5 is connected with the control end of slide rheostat RP, its colelctor electrode and audion
The emitter stage of VT4 is connected.The base stage of described audion VT6 and the negative pole of electric capacity C6 collectively constitute the output of delay startup circuit
End, during use, this outfan can be directly connected to electronic product load.The base stage of described audion VT6 also with the N pole of diode D3
It is connected.
The present invention can realize the soft start to electronic product, and after making the present invention switch on power, output voltage is through a startup
Process, rise to set-point with slower speed, to protect electronic product not impacted by surge.During startup,
The present invention also ensures that the optimum delay time of about 30 seconds.
As it has been described above, just can preferably realize the present invention.
Claims (3)
1. a soft start mu balanced circuit, it is characterised in that: main by transformator T, diode rectifier U, audion VT4, just
The electric capacity that pole is connected with the positive output end of diode rectifier U, negative pole is connected with the negative output terminal of diode rectifier U
C1, the soft start being connected with positive pole and the negative pole of electric capacity C1 respectively processes circuit, positive pole and soft start process circuit is connected,
The electric capacity C4 that negative pole is connected with the negative pole of electric capacity C1, one end is connected with the positive pole of electric capacity C4, the other end and audion VT4
Two poles that resistance R3, P pole is connected with the negative pole of electric capacity C4, N pole is connected with the emitter stage of audion VT4 that base stage is connected
Pipe D2, the delay startup circuit being connected with the emitter stage of audion VT4 and the P pole of diode D2 respectively, and P pole and time delay
The diode D3 composition that start-up circuit is connected, N pole colelctor electrode with audion VT4 after resistance R4 is connected；Described transformation
The two ends composition power input of the former limit inductance coil of device T, an input of described diode rectifier U and transformator T
The non-same polarity of secondary inductance coil be connected, the Same Name of Ends of its another input and the secondary inductance coil of transformator T
It is connected；The N pole of described diode D3 processes circuit with soft start and is connected.
A kind of soft start mu balanced circuit the most according to claim 1, it is characterised in that: described soft start processes circuit by three
Pole pipe VT1, audion VT2, audion VT3, positive pole colelctor electrode with audion VT2 after resistance R1 is connected, negative pole and three
The electric capacity C2 that the emitter stage of pole pipe VT3 is connected, one end is connected with the positive pole of electric capacity C2, the base of the other end and audion VT2
The resistance R2 that pole is connected, positive pole is connected with the colelctor electrode of audion VT3, negative pole is connected with the base stage of audion VT3
Electric capacity C3, and the diode D1 that P pole is connected with the emitter stage of audion VT3, N pole is connected with the base stage of audion VT3
Composition；The base stage of described audion VT1 is connected with the emitter stage of audion VT2, its colelctor electrode respectively with the collection of audion VT2
Electrode is connected with the positive pole of electric capacity C1, and its emitter stage is connected with the N pole of diode D3；The colelctor electrode of described audion VT3
Being connected with the base stage of audion VT2 and the positive pole of electric capacity C4 respectively, its emitter stage is connected with the negative pole of electric capacity C4.
A kind of soft start mu balanced circuit the most according to claim 2, it is characterised in that: described delay startup circuit is by three poles
Pipe VT5, audion VT6, the electricity that one end is connected with the colelctor electrode of audion VT5, the other end is connected with the P pole of diode D2
Resistance R5, the electric capacity C5 that positive pole is connected with the N pole of diode D3, negative pole is connected with the base stage of audion VT5, one end and electric capacity
Resistance R7, the P pole that the positive pole of C5 is connected, the other end is connected with the emitter stage of audion VT6 after resistance R6 with diode
The diode D4 that the P pole of D2 is connected, N pole colelctor electrode with audion VT6 after resistance R8 is connected, one end and diode D4
The slide rheostat RP that P pole is connected, the other end is connected with the emitter stage of audion VT6, and positive pole and diode D4
The electric capacity C6 that N pole is connected, negative pole is connected with the P pole of diode D2 composition；The base stage of described audion VT5 becomes with sliding
The control end of resistance device RP is connected, and its colelctor electrode is connected with the emitter stage of audion VT4；The base stage of described audion VT6 with
The negative pole of electric capacity C6 collectively constitutes the outfan of delay startup circuit, the base stage of this audion VT6 also with the N pole phase of diode D3
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604901.0A CN106100311A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start mu balanced circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604901.0A CN106100311A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start mu balanced circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106100311A true CN106100311A (en) | 2016-11-09 |
Family
ID=57478568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604901.0A Pending CN106100311A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start mu balanced circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106100311A (en) |
-
2016
- 2016-07-27 CN CN201610604901.0A patent/CN106100311A/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: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |