CN107659185A - A kind of soft start current stabilization circuit based on voltage-regulating circuit - Google Patents
A kind of soft start current stabilization circuit based on voltage-regulating circuit Download PDFInfo
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- CN107659185A CN107659185A CN201711057635.5A CN201711057635A CN107659185A CN 107659185 A CN107659185 A CN 107659185A CN 201711057635 A CN201711057635 A CN 201711057635A CN 107659185 A CN107659185 A CN 107659185A
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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
- 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
-
- 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
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of soft start current stabilization circuit based on voltage-regulating circuit, it is characterised in that：Mainly it is made up of transformer T, diode rectifier U, triode VT4, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, resistance R7, resistance R8, soft starting circuit, source electrode constant-current drive circuit, voltage-regulating circuit and delay circuit.The present invention can be achieved, to the soft start of electronic product, to make the present invention switch on power after output voltage pass through the process of a startup, set-point is risen to slower speed, to protect electronic product not impacted on startup by surge；During startup, the present invention also ensures the optimum delay time of 30 seconds or so；It is adapted to promote the use.
Description
Technical field
The present invention relates to a kind of soft starting circuit, more particularly to a kind of soft start current stabilization electricity based on voltage-regulating circuit
Road.
Background technology
With the development of science and technology, electronic technology is able to fast development, and electronics categories are increasingly abundanter, various each
The electronic product of sample enters 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, some electronic products using when need soft start, to protect electronic product on startup
Do not impacted by surge.But currently used for realizing that the structure of soft start is all more complicated, and start delay time compared with
It is long, so as to bring great inconvenience to user's use.
The content of the invention
It is an object of the invention to provide a kind of soft start current stabilization circuit based on voltage-regulating circuit, to mesh to be solved
The problem of preceding to be used to realize that the structure of soft start is all more complicated, and the delay time started is longer.
The present invention is achieved through the following technical solutions：
A kind of soft start current stabilization circuit based on voltage-regulating circuit, mainly by transformer T, diode rectifier U, three poles
Pipe VT4, positive pole is connected with diode rectifier U positive output end, negative pole is connected with diode rectifier U negative output terminal
Electric capacity C1, the soft starting circuit being connected respectively with electric capacity C1 positive pole and negative pole, positive pole is connected with soft starting circuit, bears
The electric capacity C4 that pole is connected with electric capacity C1 negative pole, one end is connected with electric capacity C4 positive pole, the other end and triode VT4 base
The resistance R6 that pole is connected, positive pole is connected with triode VT4 emitter stage, negative pole is sequentially through resistance R8 and voltage-regulating circuit
The electric capacity C5 being connected afterwards with electric capacity C4 negative pole, it is connected respectively with electric capacity C5 positive pole with the negative pole of negative pole and electric capacity C4
Delay circuit, the source electrode constant-current drive circuit being connected respectively with electric capacity C1 negative pole and delay circuit, positive pole respectively with it is soft
The electric capacity C6 that start-up circuit and delay circuit are connected, negative pole is also connected with delay circuit, and one end and electric capacity C6 are just
The resistance R7 compositions that pole is connected, the other end is connected with triode VT4 colelctor electrode；The primary side inductor wire of the transformer T
The both ends composition power input of circle, an input of the diode rectifier U and transformer T secondary inductance coil
Non-same polarity is connected, its another input is connected with the Same Name of Ends of transformer T secondary inductance coil；
The source electrode constant-current drive circuit triode VT6, triode VT7, is serially connected in FET Q's by FET Q
Resistance R101, P pole between grid and electric capacity C1 negative pole is connected after resistance R102 with FET Q grid, N poles with
The diode D101 that triode VT6 base stage is connected, positive pole are connected with triode VT6 base stage after resistance R103, born
The electric capacity C103 of pole ground connection, positive pole is connected with FET Q drain electrode, the electricity that negative pole is connected with triode VT6 base stage
Hold C102, the resistance R104 being serially connected between FET Q source electrode and triode VT6 emitter stage, positive pole and FET Q
Grid be connected, electric capacity C101, the P pole that negative pole is grounded through resistance R106 is connected with triode VT7 base stage, N poles are through electricity
The diode D102 that is connected with electric capacity C101 negative pole after resistance R105, and positive pole be connected with triode VT6 colelctor electrode,
The electric capacity C104 compositions of negative pole ground connection；The colelctor electrode of the triode VT6 N poles with diode D102 and triode VT7 respectively
Colelctor electrode be connected, its base stage is connected with triode VT7 emitter stage；The base stage and delay circuit of the triode VT7
It is connected.
Further, the voltage-regulating circuit is by triode VT8, triode VT9, triode VT10, one end and three poles
The resistance R12 that pipe VT8 base stage is connected, the other end is connected with triode VT8 emitter stage, positive pole after resistance R13 with
Electric capacity C8, the P pole that triode VT8 emitter stage is connected, negative pole is connected with triode VT8 colelctor electrode and triode VT8
Base stage be connected, the diode D5 that N poles are connected after resistance R15 with triode VT8 colelctor electrode, be serially connected in diode D5
N poles and triode VT9 emitter stage between resistance R16, be serially connected in triode VT8 colelctor electrode and triode VT9 collection
Resistance R14, P pole between electrode is connected with electric capacity C8 positive pole, the diode that N poles are connected with triode VT10 base stage
The diode D7 that D6, P pole are connected with triode VT9 emitter stage, N poles are connected with triode VT9 base stage, positive pole and three
The electric capacity C9 that pole pipe VT9 base stage is connected, negative pole is connected after resistance R17 with triode VT10 base stage, and one end
It is connected with triode VT9 base stage, the resistance R18 compositions that the other end is connected with triode VT10 emitter stage；Described three
Pole pipe VT10 colelctor electrode is connected with triode VT9 colelctor electrode；The emitter stage of the triode VT8 and electric capacity C4 negative pole
It is connected, the negative pole of the negative pole of the electric capacity C9 with electric capacity C5 after resistance R8 is connected.
Further, the soft starting circuit is by triode VT1, triode VT2, triode VT3, positive pole and triode
The electric capacity C2 that VT2 base stage is connected, negative pole is connected with electric capacity C1 negative pole, it is serially connected in electric capacity C2 negative pole and triode
Resistance R1 between VT2 base stage, the resistance R2 being serially connected between triode VT1 colelctor electrode and triode VT2 base stage, string
The resistance R3 being connected between triode VT1 colelctor electrode and triode VT2 colelctor electrode, it is serially connected in triode VT1 colelctor electrode
Resistance R4 between base stage, be serially connected in resistance R5, P pole between triode VT1 base stage and triode VT3 emitter stage with
The diode D2 that triode VT2 colelctor electrode is connected, N poles are connected with triode VT3 base stage, positive pole and triode VT2
Emitter stage be connected, the electric capacity C3 that negative pole is connected with triode VT3 colelctor electrode, and P poles and electric capacity C2 negative pole phase
The diode D1 compositions that connection, N poles are connected with triode VT2 emitter stage；The colelctor electrode of the triode VT1 and electric capacity C1
Positive pole be connected, its emitter stage is connected with electric capacity C6 positive pole；The base stage of the triode VT3 and electric capacity C4 positive pole phase
Connection.
Further, the delay circuit is by triode VT5, and positive pole is connected with electric capacity C6 positive pole, negative pole and electricity
Hold the C4 electric capacity C7 that is connected of negative pole, one end is connected with triode VT5 colelctor electrode, the other end and electric capacity C7 negative pole phase
Resistance R9, the P pole of connection is connected with triode VT5 colelctor electrode, negative pole of the N poles with electric capacity C7 after resistance R10 is connected
Diode D3, the resistance R11 that one end is connected with triode VT5 base stage, the other end is connected with diode D3 N poles,
And P poles are connected after slide rheostat RP with diode D3 N poles, the diode that N poles are connected with electric capacity C7 positive pole
D4 is formed；The colelctor electrode of the three-level VT5 is connected with electric capacity C5 negative pole, its emitter stage positive pole and electricity with electric capacity C5 respectively
The negative pole for holding C6 is connected；The N poles of the diode D3 are connected with slide rheostat RP control terminal；The triode VT7
Base stage be connected with triode VT5 base stage.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) present invention can be achieved to the soft start of electronic product, make the present invention switch on power after output voltage pass through one
The process of startup, set-point is risen to slower speed, to protect electronic product not impacted on startup by surge.Start
When, the present invention also ensures the optimum delay time of 30 seconds or so.
(2) present invention can guarantee that provides stable operating current for electronic product during electronic product loaded work piece, to prevent
Electronic product is compromised due to the fluctuation of operating current.
(3) present invention can also effectively reduce the leakage and loss of output current when in use, and can suppress output current
Unusual fluctuations, output current is kept stable, so as to improve the stability of the output current of the present invention.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the circuit diagram of the source electrode constant-current drive circuit of the present invention.
Fig. 3 is the circuit diagram of the voltage-regulating circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment
As shown in figure 1, the soft start current stabilization circuit based on voltage-regulating circuit of the present invention, mainly by transformer T, two poles
Pipe rectifier U, triode VT4, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, resistance R6, resistance R7, resistance R8, soft start electricity
Road, source electrode constant-current drive circuit, voltage-regulating circuit and delay circuit composition.
During connection, the positive pole of the electric capacity C1 is connected with diode rectifier U positive output end, its negative pole and diode
Rectifier U negative output terminal is connected.The soft starting circuit is connected with electric capacity C1 positive pole and negative pole respectively；The electric capacity
C4 positive pole is connected with soft starting circuit, and its negative pole is connected with electric capacity C1 negative pole.One end of the resistance R6 and electric capacity
C4 positive pole is connected, and its other end is connected with triode VT4 base stage.The positive pole of the electric capacity C5 is with triode VT4's
Emitter stage is connected, and negative pole of its negative pole sequentially with electric capacity C4 after resistance R8 and voltage-regulating circuit is connected.The delay
Circuit is connected with electric capacity C5 positive pole with the negative pole of negative pole and electric capacity C4 respectively；The positive pole of the electric capacity C6 opens with soft respectively
Dynamic circuit is connected with delay circuit, and its negative pole is also connected with delay circuit.One end of the resistance R7 and electric capacity C6 are just
Pole is connected, and its other end is connected with triode VT4 colelctor electrode.
Meanwhile the both ends composition power input of the primary side inductance coil of the transformer T, the power input can be direct
Connect civil power.An input of the diode rectifier U is connected with the non-same polarity of transformer T secondary inductance coil
Connect, its another input is connected with the Same Name of Ends of transformer T secondary inductance coil.
The soft starting circuit is by triode VT1, triode VT2, triode VT3, resistance R1, resistance R2, resistance R3, electricity
Hinder R4, resistance R5, electric capacity C2, electric capacity C3, diode D1 and diode D2 composition.
During connection, the positive pole of the electric capacity C2 is connected with triode VT2 base stage, the negative pole phase of its negative pole and electric capacity C1
Connection.The resistance R1 is serially connected between electric capacity C2 negative pole and triode VT2 base stage, and the resistance R2 is serially connected in triode
Between VT1 colelctor electrode and triode VT2 base stage, the resistance R3 is serially connected in triode VT1 colelctor electrode and triode VT2
Colelctor electrode between, the resistance R4 is serially connected between triode VT1 colelctor electrode and base stage, and the resistance R5 is serially connected in three poles
Between pipe VT1 base stage and triode VT3 emitter stage.The P poles of the diode D2 are connected with triode VT2 colelctor electrode
Connect, its N pole is connected with triode VT3 base stage.The positive pole of the electric capacity C3 is connected with triode VT2 emitter stage, its
Negative pole is connected with triode VT3 colelctor electrode.The P poles of the diode D1 are connected with electric capacity C2 negative pole, its N pole and three
Pole pipe VT2 emitter stage is connected.Meanwhile the colelctor electrode of the triode VT1 is connected with electric capacity C1 positive pole, its emitter stage
It is connected with electric capacity C6 positive pole；The base stage of the triode VT3 is connected with electric capacity C4 positive pole.
The delay circuit is by triode VT5, resistance R9, resistance R10, resistance R11, slide rheostat RP, electric capacity C7, and two
Pole pipe D3 and diode D4 compositions.
During connection, the positive pole of the electric capacity C7 is connected with electric capacity C6 positive pole, and its negative pole is connected with electric capacity C4 negative pole
Connect.One end of the resistance R9 is connected with triode VT5 colelctor electrode, and its other end is connected with electric capacity C7 negative pole.Institute
The P poles for stating diode D3 are connected with triode VT5 colelctor electrode, and its negative pole of N poles with electric capacity C7 after resistance R10 is connected
Connect.One end of the resistance R11 is connected with triode VT5 base stage, and its other end is connected with diode D3 N poles.Institute
The P poles for stating diode D4 are connected after slide rheostat RP with diode D3 N poles, and its N pole is connected with electric capacity C7 positive pole
Connect.Meanwhile the colelctor electrode of the three-level VT5 is connected with electric capacity C5 negative pole, its emitter stage respectively with electric capacity C5 positive pole and
Electric capacity C6 negative pole is connected；The N poles of the diode D3 are connected with slide rheostat RP control terminal.
As shown in Fig. 2 the source electrode constant-current drive circuit is by FET Q, triode VT6, triode VT7, resistance
R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, electric capacity C101, electric capacity C102, electric capacity C103,
Electric capacity C104, diode D101 and diode D102 are formed.
During connection, the resistance R101 is serially connected between FET Q grid and electric capacity C1 negative pole；The diode
Grid of the D101 P poles with FET Q after resistance R102 is connected, and its N pole is connected with triode VT6 base stage.Institute
State base stage of the electric capacity C103 positive pole with triode VT6 after resistance R103 to be connected, its negative pole ground connection.The electric capacity C102's
Positive pole is connected with FET Q drain electrode, and its negative pole is connected with triode VT6 base stage.The resistance R104 is serially connected in
Between FET Q source electrode and triode VT6 emitter stage；The positive pole of the electric capacity C101 and FET Q grid phase
Connection, its negative pole are grounded through resistance R106.The diode D102 hairs P poles are connected with triode VT7 base stage, its N pole warp
Negative pole after resistance R105 with electric capacity C101 is connected.The positive pole of the electric capacity C104 is connected with triode VT6 colelctor electrode,
Its negative pole is grounded.
Meanwhile the colelctor electrode of the triode VT6 respectively with diode D102 N poles and triode VT7 colelctor electrode phase
Connection, its base stage are connected with triode VT7 emitter stage；The base stage of the triode VT7 is connected with delay circuit.Use
When, the source electrode constant-current drive circuit can ensure that the constant electric current of supply load, be worked with driving load preferably.
As shown in figure 3, the voltage-regulating circuit is by triode VT8, triode VT9, triode VT10, resistance R12, electricity
Hinder R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C8, electric capacity C9, diode D5, diode D6
And diode D7 compositions.
During connection, one end of the resistance R12 is connected with triode VT8 base stage, and its other end is with triode VT8's
Emitter stage is connected.Emitter stage of the positive pole of the electric capacity C8 with triode VT8 after resistance R13 is connected, its negative pole and three
Pole pipe VT8 colelctor electrode is connected.The P poles of the diode D5 are connected with triode VT8 base stage, and its N pole is through resistance R15
The colelctor electrode with triode VT8 is connected afterwards.The resistance R16 is serially connected in diode D5 N poles and triode VT9 emitter stage
Between, the resistance R14 is serially connected between triode VT8 colelctor electrode and triode VT9 colelctor electrode.The diode D6's
P poles are connected with electric capacity C8 positive pole, and its N pole is connected with triode VT10 base stage.The P poles of the diode D7 and three poles
Pipe VT9 emitter stage is connected, and its N pole is connected with triode VT9 base stage.The positive pole of the electric capacity C9 and triode VT9
Base stage be connected, base stage of its negative pole with triode VT10 after resistance R17 is connected.One end and three of the resistance R18
Pole pipe VT9 base stage is connected, and its other end is connected with triode VT10 emitter stage.Meanwhile the triode VT10
Colelctor electrode is connected with triode VT9 colelctor electrode；The emitter stage of the triode VT8 is connected with electric capacity C4 negative pole, institute
Negative pole of the electric capacity C9 negative pole with electric capacity C5 after resistance R8 is stated to be connected.
The present invention can be achieved to the soft start of electronic product, make the present invention switch on power after output voltage by a startup
Process, set-point is risen to slower speed, to protect electronic product not impacted on startup by surge.During startup,
The present invention also ensures the optimum delay time of 30 seconds or so.The present invention is electronic product when can guarantee that electronic product loaded work piece
Stable operating current is provided, to prevent electronic product to be compromised due to the fluctuation of operating current.The present invention is gone back when in use
The leakage and loss of output current can be effectively reduced, and the unusual fluctuations of output current can be suppressed, output current is kept steady
It is fixed, so as to improve the stability of the output current of the present invention.
As described above, it can preferably realize the present invention.
Claims (4)
- A kind of 1. soft start current stabilization circuit based on voltage-regulating circuit, it is characterised in that：It is mainly whole by transformer T, diode Flow device U, triode VT4, positive pole is connected with diode rectifier U positive output end, negative pole and diode rectifier U it is negative defeated Go out the electric capacity C1 that end is connected, the soft starting circuit being connected respectively with electric capacity C1 positive pole and negative pole, positive pole and soft start electricity The electric capacity C4 that road is connected, negative pole is connected with electric capacity C1 negative pole, one end is connected with electric capacity C4 positive pole, the other end and three The resistance R6 that pole pipe VT4 base stage is connected, positive pole is connected with triode VT4 emitter stage, negative pole sequentially through resistance R8 and The electric capacity C5 being connected after voltage-regulating circuit with electric capacity C4 negative pole, respectively with electric capacity C5 positive pole and negative pole and electric capacity C4 The delay circuit that is connected of negative pole, the source electrode constant-current drive circuit being connected respectively with electric capacity C1 negative pole and delay circuit, The electric capacity C6 that positive pole is connected with soft starting circuit and delay circuit respectively, negative pole is also connected with delay circuit, and one end It is connected with electric capacity C6 positive pole, the resistance R7 compositions that the other end is connected with triode VT4 colelctor electrode；The transformer T Primary side inductance coil both ends composition power input, an input of the diode rectifier U and transformer T pair The non-same polarity of side inductance coil is connected, its another input is connected with the Same Name of Ends of transformer T secondary inductance coil Connect；The source electrode constant-current drive circuit is serially connected in FET Q grid by FET Q, triode VT6, triode VT7 Resistance R101, P pole between electric capacity C1 negative pole is connected after resistance R102 with FET Q grid, N poles and three poles The diode D101 that pipe VT6 base stage is connected, positive pole is connected after resistance R103 with triode VT6 base stage, negative pole connects The electric capacity C103 on ground, positive pole is connected with FET Q drain electrode, the electric capacity that negative pole is connected with triode VT6 base stage C102, the resistance R104 being serially connected between FET Q source electrode and triode VT6 emitter stage, positive pole is with FET Q's Electric capacity C101, the P pole that grid is connected, negative pole is grounded through resistance R106 is connected with triode VT7 base stage, N poles are through resistance The diode D102 being connected after R105 with electric capacity C101 negative pole, and positive pole are connected with triode VT6 colelctor electrode, born The electric capacity C104 compositions of pole ground connection；The colelctor electrode of the triode VT6 respectively with diode D102 N poles and triode VT7 Colelctor electrode is connected, and its base stage is connected with triode VT7 emitter stage；The base stage of the triode VT7 and delay circuit phase Connection.
- A kind of 2. soft start current stabilization circuit based on voltage-regulating circuit according to claim 1, it is characterised in that：It is described Voltage-regulating circuit is connected with triode VT8 base stage by triode VT8, triode VT9, triode VT10, one end, is another The resistance R12 being connected with triode VT8 emitter stage is held, emitter stage of the positive pole with triode VT8 after resistance R13 is connected Connect, electric capacity C8, the P pole that negative pole is connected with triode VT8 colelctor electrode is connected with triode VT8 base stage, N poles are through resistance The diode D5 being connected after R15 with triode VT8 colelctor electrode, it is serially connected in diode D5 N poles and triode VT9 transmitting Resistance R16 between pole, be serially connected in resistance R14, P pole between triode VT8 colelctor electrode and triode VT9 colelctor electrode with Diode D6, the P pole that electric capacity C8 positive pole is connected, N poles are connected with triode VT10 base stage and triode VT9 transmitting The diode D7 that pole is connected, N poles are connected with triode VT9 base stage, positive pole are connected with triode VT9 base stage, born The electric capacity C9 that pole is connected after resistance R17 with triode VT10 base stage, and one end are connected with triode VT9 base stage Connect, the resistance R18 compositions that the other end is connected with triode VT10 emitter stage；The colelctor electrode of the triode VT10 and three poles Pipe VT9 colelctor electrode is connected；The emitter stage of the triode VT8 is connected with electric capacity C4 negative pole, and the electric capacity C9's is negative Negative pole of the pole with electric capacity C5 after resistance R8 is connected.
- A kind of 3. soft start current stabilization circuit based on voltage-regulating circuit according to claim 2, it is characterised in that：It is described Soft starting circuit by triode VT1, triode VT2, triode VT3, positive pole is connected with triode VT2 base stage, negative pole with The electric capacity C2 that electric capacity C1 negative pole is connected, the resistance R1 being serially connected between electric capacity C2 negative pole and triode VT2 base stage, string The resistance R2 being connected between triode VT1 colelctor electrode and triode VT2 base stage, be serially connected in triode VT1 colelctor electrode with Resistance R3 between triode VT2 colelctor electrode, the resistance R4 being serially connected between triode VT1 colelctor electrode and base stage, concatenation Resistance R5, P pole between triode VT1 base stage and triode VT3 emitter stage is connected with triode VT2 colelctor electrode Connect, the diode D2 that N poles are connected with triode VT3 base stage, positive pole is connected with triode VT2 emitter stage, negative pole with The electric capacity C3 that triode VT3 colelctor electrode is connected, and P poles are connected with electric capacity C2 negative pole, N poles are with triode VT2's The diode D1 compositions that emitter stage is connected；The colelctor electrode of the triode VT1 is connected with electric capacity C1 positive pole, its emitter stage It is connected with electric capacity C6 positive pole；The base stage of the triode VT3 is connected with electric capacity C4 positive pole.
- A kind of 4. soft start current stabilization circuit based on voltage-regulating circuit according to claim 3, it is characterised in that：It is described Delay circuit is by triode VT5, the electric capacity that positive pole is connected with electric capacity C6 positive pole, negative pole is connected with electric capacity C4 negative pole C7, resistance R9, the P pole that one end is connected with triode VT5 colelctor electrode, the other end is connected with electric capacity C7 negative pole and three poles The diode D3 that pipe VT5 colelctor electrode is connected, N poles are connected after resistance R10 with electric capacity C7 negative pole, one end and triode The resistance R11 that VT5 base stage is connected, the other end is connected with diode D3 N poles, and P poles are after slide rheostat RP It is connected with diode D3 N poles, the diode D4 compositions that N poles are connected with electric capacity C7 positive pole；The current collection of the three-level VT5 Pole is connected with electric capacity C5 negative pole, and its emitter stage is connected with electric capacity C5 positive pole and electric capacity C6 negative pole respectively；Described two Pole pipe D3 N poles are connected with slide rheostat RP control terminal；The base stage of the triode VT7 and triode VT5 base stage It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057635.5A CN107659185A (en) | 2017-11-01 | 2017-11-01 | A kind of soft start current stabilization circuit based on voltage-regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711057635.5A CN107659185A (en) | 2017-11-01 | 2017-11-01 | A kind of soft start current stabilization circuit based on voltage-regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107659185A true CN107659185A (en) | 2018-02-02 |
Family
ID=61096492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711057635.5A Pending CN107659185A (en) | 2017-11-01 | 2017-11-01 | A kind of soft start current stabilization circuit based on voltage-regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107659185A (en) |
-
2017
- 2017-11-01 CN CN201711057635.5A patent/CN107659185A/en active Pending
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Application publication date: 20180202 |