CN106301312A - A kind of soft start current stabilization circuit based on ICLC - Google Patents
A kind of soft start current stabilization circuit based on ICLC Download PDFInfo
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- CN106301312A CN106301312A CN201610604879.XA CN201610604879A CN106301312A CN 106301312 A CN106301312 A CN 106301312A CN 201610604879 A CN201610604879 A CN 201610604879A CN 106301312 A CN106301312 A CN 106301312A
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- audion
- pole
- electric capacity
- resistance
- negative pole
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/025—Current limitation using field effect transistors
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- 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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- Power Engineering (AREA)
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Abstract
The invention discloses a kind of soft start current stabilization circuit based on ICLC, it is characterized in that: mainly by transformator T, diode rectifier U, audion VT4, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, resistance R7, resistance R8, soft starting circuit, ICLC and delay 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 current stabilization based on ICLC
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 current stabilization circuit based on ICLC, to expect to solve
The structure being certainly currently used for realizing soft start 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 current stabilization circuit based on ICLC, mainly by transformator T, diode rectifier U,
Audion VT4, positive pole is connected with the positive output end of diode rectifier U, the negative output terminal phase of negative pole and diode rectifier U
The electric capacity C1 connected, the soft starting circuit being connected with positive pole and the negative pole of electric capacity C1 respectively, positive pole is connected with soft starting circuit
Connect, electric capacity C4 that negative pole negative pole with electric capacity C1 after ICLC is connected, the positive pole phase of one end and electric capacity C4
The resistance R6 that connection, the other end are connected with the base stage of audion VT4, positive pole is connected with the emitter stage of audion VT4, negative pole
The electric capacity C5 that negative pole with electric capacity C4 is connected after resistance R8, respectively negative with the positive pole of electric capacity C5 and negative pole and electric capacity C4
The delay circuit that pole is connected, positive pole is connected with soft starting circuit and delay circuit respectively, negative pole is also connected with delay circuit
The electric capacity C6 connect, and the resistance that one end is connected with the positive pole of electric capacity C6, the other end is connected with the colelctor electrode of audion VT4
R7 forms；The two ends composition power input of the former limit inductance coil of described transformator T, of described diode rectifier U
Input is connected with the non-same polarity of the secondary inductance coil of transformator T, its another input is electric with the secondary of transformator T
The Same Name of Ends of sense coil is connected.
Further, described ICLC is by audion VT6, audion VT7, and audion VT8, positive pole is through electricity
Be connected with the base stage of audion VT6 after resistance R12, electric capacity C8, P pole and three that negative pole is connected with the colelctor electrode of audion VT6
The diode D5 that the base stage of pole pipe VT6 is connected, N pole is connected with the base stage of audion VT7, one end is sent out with audion VT6's
The resistance R13 that emitter-base bandgap grading is connected, the other end is connected with the base stage of audion VT7, positive pole is connected with the colelctor electrode of audion VT7
Connect, electric capacity C9, P pole that negative pole colelctor electrode with audion VT6 after resistance R14 is connected after resistance R15 with electric capacity C9's
Diode D7, the P pole that negative pole is connected, N pole is connected with the emitter stage of audion VT8 is connected with the emitter stage of audion VT7
Connect, diode D6 that N pole is connected with the colelctor electrode of audion VT8, be serially connected in the base stage of audion VT7 with audion VT8's
Resistance R16 between colelctor electrode, is serially connected in the resistance R17 between colelctor electrode and the base stage of audion VT8, and one end and three poles
The resistance R18 composition that the base stage of pipe VT8 is connected, the other end is connected with the negative pole of electric capacity C4；The positive pole of described electric capacity C8 with
The negative pole of electric capacity C1 is connected.
Further, described soft starting circuit is by audion VT1, audion VT2, audion VT3, positive pole and audion
The electric capacity C2 that the base stage of VT2 is connected, negative pole is connected with the negative pole of electric capacity C1, is serially connected in negative pole and the audion of electric capacity C2
Resistance R1 between the base stage of VT2, the resistance R2 being serially connected between the colelctor electrode of audion VT1 and the base stage of audion VT2, string
The resistance R3 being connected between the colelctor electrode of audion VT1 and the colelctor electrode of audion VT2, is serially connected in the colelctor electrode of audion VT1
And the resistance R4 between base stage, resistance R5, the P pole being serially connected between the base stage of audion VT1 and the emitter stage of audion VT3 with
The diode D2 that the colelctor electrode of audion VT2 is connected, N pole is connected with the base stage of audion VT3, positive pole and audion VT2
The electric capacity C3 that emitter stage is connected, negative pole is connected with the colelctor electrode of audion VT3, and the negative pole phase of P pole and electric capacity C2
The diode D1 composition that connection, N pole are connected with the emitter stage of audion VT2；The colelctor electrode of described audion VT1 and electric capacity C1
Positive pole be connected, its emitter stage is connected with the positive pole of electric capacity C6；The base stage of described audion VT3 and the positive pole phase of electric capacity C4
Connect.
Further, described delay circuit by audion VT5, positive pole is connected with the positive pole of electric capacity C6, negative pole with electricity
Holding the electric capacity C7 that is connected of negative pole of C4, one end is connected with the colelctor electrode of audion VT5, the other end and the negative pole phase of electric capacity C7
Resistance R9, the P pole connected is connected with the colelctor electrode of audion VT5, N pole negative pole with electric capacity C7 after resistance R10 is connected
Diode D3, the resistance R11 that one end is connected with the base stage of audion VT5, the other end is connected with the N pole of diode D3,
And P pole diode that N pole is connected, N pole is connected with the positive pole of electric capacity C7 with diode D3 after slide rheostat RP
D4 forms；The colelctor electrode of described three grades of VT5 is connected with the negative pole of electric capacity C5, its emitter stage respectively with positive pole and the electricity of electric capacity C5
The negative pole holding C6 is connected；The N pole of described diode D3 is connected with the control end of slide rheostat RP.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention can realize the soft start to electronic product, and after making the present invention switch on power, output voltage is through one
The process started, rises to set-point with slower speed, to protect electronic product not impacted by surge.Start
Time, the present invention also ensures that the optimum delay time of about 30 seconds.
(2) stable operating current is provided for electronic product when the present invention can guarantee that electronic product loaded work piece, to prevent
Electronic product is compromised due to the fluctuation of operating current.
(3) high surge current that input power produces when powering up can also be suppressed by the present invention in use, effectively
Surge current is reduced in the range of permission by ground.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the circuit diagram of the ICLC 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 soft start current stabilization circuit based on ICLC of the present invention, mainly by transformator
T, diode rectifier U, audion VT4, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, resistance R7, resistance R8, soft
Start-up circuit, ICLC and delay circuit composition.
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 starting circuit is connected with positive pole and the negative pole of electric capacity C1 respectively；Described electric capacity
The positive pole of C4 is connected with soft starting circuit, and its negative pole negative pole with electric capacity C1 after ICLC is connected.Institute
The positive pole of one end and electric capacity C4 of stating resistance R6 is connected, and its other end is connected with the base stage of audion VT4.Described electric capacity C5
Positive pole be connected with the emitter stage of audion VT4, its negative pole negative pole with electric capacity C4 after resistance R8 is connected.Described time delay
Circuit is connected with the negative pole of negative pole and electric capacity C4 with the positive pole of electric capacity C5 respectively；The positive pole of described electric capacity C6 opens with soft respectively
Galvanic electricity road is connected with delay circuit, and its negative pole is also connected with delay circuit.One end of described resistance R7 is with electric capacity C6 just
Pole is connected, and its other end is connected with the colelctor electrode of audion VT4.
Meanwhile, the two ends composition power input of the former limit inductance coil of described transformator T, this power input can be direct
Connect civil power.One input of described diode rectifier U is connected with the non-same polarity of the secondary inductance coil of transformator T
Connecing, its another input is connected with the Same Name of Ends of the secondary inductance coil of transformator T.
Described soft starting circuit is by audion VT1, audion VT2, audion VT3, resistance R1, resistance R2, resistance R3, electricity
Resistance R4, resistance R5, electric capacity C2, electric capacity C3, diode D1 and diode D2 composition.
During connection, the positive pole of described electric capacity C2 is connected with the base stage of audion VT2, the negative pole phase of its negative pole and electric capacity C1
Connect.Described resistance R1 is serially connected between the negative pole of electric capacity C2 and the base stage of audion VT2, and described resistance R2 is serially connected in audion
Between colelctor electrode and the base stage of audion VT2 of VT1, described resistance R3 is serially connected in colelctor electrode and the audion VT2 of audion VT1
Colelctor electrode between, described resistance R4 is serially connected between colelctor electrode and the base stage of audion VT1, and described resistance R5 is serially connected in three poles
Between base stage and the emitter stage of audion VT3 of pipe VT1.The P pole of described diode D2 is connected with the colelctor electrode of audion VT2
Connecing, its N pole is connected with the base stage of audion VT3.The positive pole of described electric capacity C3 is connected with the emitter stage of audion VT2, its
Negative pole is connected with the colelctor electrode of audion VT3.The P pole of described diode D1 is connected with the negative pole of electric capacity C2, its N pole and three
The emitter stage of pole pipe VT2 is connected.Meanwhile, the colelctor electrode of described audion VT1 is connected with the positive pole of electric capacity C1, its emitter stage
It is connected with the positive pole of electric capacity C6；The base stage of described audion VT3 is connected with the positive pole of electric capacity C4.
Described delay circuit is by audion VT5, resistance R9, resistance R10, resistance R11, slide rheostat RP, electric capacity C7, two
Pole pipe D3 and diode D4 composition.
During connection, the positive pole of described electric capacity C7 is connected with the positive pole of electric capacity C6, and its negative pole is connected with the negative pole of electric capacity C4
Connect.One end of described resistance R9 is connected with the colelctor electrode of audion VT5, and its other end is connected with the negative pole of electric capacity C7.Institute
The colelctor electrode of the P pole and audion VT5 of stating diode D3 is connected, and its N pole negative pole with electric capacity C7 after resistance R10 is connected
Connect.One end of described resistance R11 is connected with the base stage of audion VT5, and its other end is connected with the N pole of diode D3.Institute
Stating the N pole with diode D3 after slide rheostat RP, the P pole of diode D4 to be connected, its N pole is connected with the positive pole of electric capacity C7
Connect.Meanwhile, the colelctor electrode of described three grades of VT5 is connected with the negative pole of electric capacity C5, its emitter stage respectively with the positive pole of electric capacity C5 and
The negative pole of electric capacity C6 is connected；The N pole of described diode D3 is connected with the control end of slide rheostat RP.
As in figure 2 it is shown, described ICLC is by audion VT6, audion VT7, audion VT8, resistance
R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C8, electric capacity C9, diode D5, two
Pole pipe D6 and diode D7 composition.
During connection, the positive pole of described electric capacity C8 base stage with audion VT6 after resistance R12 is connected, its negative pole and three
The colelctor electrode of pole pipe VT6 is connected.The P pole of described diode D5 is connected with the base stage of audion VT6, its N pole and audion
The base stage of VT7 is connected.One end of described resistance R13 is connected with the emitter stage of audion VT6, its other end and audion
The base stage of VT7 is connected.The positive pole of described electric capacity C9 is connected with the colelctor electrode of audion VT7, its negative pole after resistance R14 with
The colelctor electrode of audion VT6 is connected.The P pole of described diode D7 negative pole with electric capacity C9 after resistance R15 is connected, its N
Pole is connected with the emitter stage of audion VT8.The P pole of described diode D6 is connected with the emitter stage of audion VT7, its N pole
It is connected with the colelctor electrode of audion VT8.Described resistance R16 is serially connected in the base stage of audion VT7 and the colelctor electrode of audion VT8
Between, described resistance R17 is serially connected between colelctor electrode and the base stage of audion VT8.One end of described resistance R18 and audion
The base stage of VT8 is connected, and its other end is connected with the negative pole of electric capacity C4；The positive pole of described electric capacity C8 and the negative pole phase of electric capacity C1
Connect.
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.The present invention is electronic product when can guarantee that electronic product loaded work piece
There is provided stable operating current, to prevent electronic product to be compromised due to the fluctuation of operating current.The present invention is in use also
The high surge current that input power produces when powering up can be suppressed, effectively surge current is reduced to the scope allowed
In.
As it has been described above, just can preferably realize the present invention.
Claims (4)
1. a soft start current stabilization circuit based on ICLC, it is characterised in that: main by transformator T, two poles
Pipe commutator U, audion VT4, positive pole is connected with the positive output end of diode rectifier U, negative pole and diode rectifier U
The electric capacity C1 that negative output terminal is connected, the soft starting circuit being connected with positive pole and the negative pole of electric capacity C1 respectively, positive pole opens with soft
The electric capacity C4 that galvanic electricity road is connected, negative pole negative pole with electric capacity C1 after ICLC is connected, one end and electric capacity
The emitter stage of the resistance R6 that the positive pole of C4 is connected, the other end is connected with the base stage of audion VT4, positive pole and audion VT4
Be connected, electric capacity C5 that negative pole negative pole with electric capacity C4 after resistance R8 is connected, respectively with the positive pole of electric capacity C5 and negative pole with
And the delay circuit that the negative pole of electric capacity C4 is connected, positive pole is connected with soft starting circuit and delay circuit respectively, negative pole also with
The electric capacity C6 that delay circuit is connected, and one end is connected with the positive pole of electric capacity C6, the colelctor electrode of the other end and audion VT4
The resistance R7 composition being connected；The two ends composition power input of the former limit inductance coil of described transformator T, described diode is whole
One input of stream device U is connected with the non-same polarity of the secondary inductance coil of transformator T, its another input and transformation
The Same Name of Ends of the secondary inductance coil of device T is connected.
A kind of soft start current stabilization circuit based on ICLC the most according to claim 1, it is characterised in that:
Described ICLC by audion VT6, audion VT7, audion VT8, positive pole after resistance R12 with audion
The base stage phase of electric capacity C8, the P pole that the base stage of VT6 is connected, negative pole is connected with the colelctor electrode of audion VT6 and audion VT6
The diode D5 that connection, N pole are connected with the base stage of audion VT7, one end is connected with the emitter stage of audion VT6, another
The resistance R13 that is connected with the base stage of audion VT7 of end, positive pole is connected with the colelctor electrode of audion VT7, negative pole is through resistance
Electric capacity C9, the P pole that after R14, colelctor electrode with audion VT6 is connected negative pole with electric capacity C9 after resistance R15 is connected, N pole
Diode D7, the P pole being connected with the emitter stage of audion VT8 is connected with the emitter stage of audion VT7, N pole and audion
The diode D6 that the colelctor electrode of VT8 is connected, is serially connected in the electricity between the base stage of audion VT7 and the colelctor electrode of audion VT8
Resistance R16, is serially connected in the resistance R17 between colelctor electrode and the base stage of audion VT8, and the base stage phase of one end and audion VT8
The resistance R18 composition that connection, the other end are connected with the negative pole of electric capacity C4；The positive pole of described electric capacity C8 and the negative pole phase of electric capacity C1
Connect.
A kind of soft start current stabilization circuit based on ICLC the most according to claim 2, it is characterised in that:
Described soft starting circuit is connected with the base stage of audion VT2 by audion VT1, audion VT2, audion VT3, positive pole, is born
The electric capacity C2 that pole is connected with the negative pole of electric capacity C1, is serially connected in the resistance between the negative pole of electric capacity C2 and the base stage of audion VT2
R1, the resistance R2 being serially connected between the colelctor electrode of audion VT1 and the base stage of audion VT2, be serially connected in the current collection of audion VT1
Resistance R3 between the colelctor electrode of pole and audion VT2, is serially connected in the resistance R4 between colelctor electrode and the base stage of audion VT1,
The colelctor electrode phase of resistance R5, the P pole being serially connected between the base stage of audion VT1 and the emitter stage of audion VT3 and audion VT2
The diode D2 that connection, N pole are connected with the base stage of audion VT3, positive pole is connected with the emitter stage of audion VT2, negative pole
The electric capacity C3 being connected with the colelctor electrode of audion VT3, and P pole is connected with the negative pole of electric capacity C2, N pole and audion VT2
Emitter stage be connected diode D1 composition；The colelctor electrode of described audion VT1 is connected with the positive pole of electric capacity C1, and it is launched
Pole is connected with the positive pole of electric capacity C6；The base stage of described audion VT3 is connected with the positive pole of electric capacity C4.
A kind of soft start current stabilization circuit based on ICLC the most according to claim 3, it is characterised in that:
Described delay circuit is by audion VT5, the electricity that positive pole is connected with the positive pole of electric capacity C6, negative pole is connected with the negative pole of electric capacity C4
Hold C7, resistance R9, the P pole and three that one end is connected, the other end is connected with the negative pole of electric capacity C7 with the colelctor electrode of audion VT5
The diode D3 that the colelctor electrode of pole pipe VT5 is connected, N pole negative pole with electric capacity C7 after resistance R10 is connected, one end and three poles
The resistance R11 that the base stage of pipe VT5 is connected, the other end is connected with the N pole of diode D3, and P pole is through slide rheostat RP
Be connected with the N pole of diode D3 afterwards, diode D4 that N pole is connected with the positive pole of electric capacity C7 composition；The collection of described three grades of VT5
Electrode is connected with the negative pole of electric capacity C5, and its emitter stage is connected with the positive pole of electric capacity C5 and the negative pole of electric capacity C6 respectively；Described
The N pole of diode D3 is connected with the control end of slide rheostat RP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604879.XA CN106301312A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start current stabilization circuit based on ICLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604879.XA CN106301312A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start current stabilization circuit based on ICLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106301312A true CN106301312A (en) | 2017-01-04 |
Family
ID=57663348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604879.XA Pending CN106301312A (en) | 2016-07-27 | 2016-07-27 | A kind of soft start current stabilization circuit based on ICLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106301312A (en) |
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2016
- 2016-07-27 CN CN201610604879.XA patent/CN106301312A/en active Pending
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Application publication date: 20170104 |