CN105978347A - Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit - Google Patents
Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit Download PDFInfo
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- CN105978347A CN105978347A CN201610410189.0A CN201610410189A CN105978347A CN 105978347 A CN105978347 A CN 105978347A CN 201610410189 A CN201610410189 A CN 201610410189A CN 105978347 A CN105978347 A CN 105978347A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a bipolar switch voltage-stabilizing power supply based on an audion current expanding circuit. The bipolar switch voltage-stabilizing power supply is characterized by mainly consisting of a control chip U, a transformer T, a reference voltage circuit, an audion VT1, a diode D1, a polar capacitor C7, an audion current expanding circuit connected with an OUT pin of the control chip U, a micro processing circuit serially connected between the reference voltage circuit and a primary side inductance coil L1 of the transformer T, a switch control circuit connected with the audion current expanding circuit and an I pin of the control chip I respectively and the like. According to the bipolar switch voltage-stabilizing power supply, input voltage can be automatically adjusted, and the output of stable voltage can be effectively guaranteed, so that the accuracy for function tests of a battery protection circuit board is improved.
Description
Technical field
The present invention relates to electronic applications, specifically, be that a kind of bipolarity based on audion expansion current circuit is opened
Close regulated power supply.
Background technology
At present, battery manufacturer is typically necessary after having made battery protection circuit and comes with bipolar power supply
The various functions detecting this battery protection circuit is the most up to standard, i.e. uses bipolar power supply to realize right
The overvoltage of battery protection circuit, quickly calibrated and test under-voltage, stream excessively.So-called bipolar power supply is
Refer to that during this corona discharge, the electric current of its power source internal is to flow to positive pole from negative pole, and to its electricity during this power source charges
Electric current within source is to flow to negative pole from positive pole (no matter its internal electric current of traditional common power is in what feelings
All can only flow to positive pole from negative pole under condition, and negative pole can not be flowed to from positive pole).But, institute the most on the market
The bipolar power supply sold exists for the problem of piezoelectric voltage unstable properties, thus causes battery protecting circuit
The various functions detection of plate is inaccurate, has had a strong impact on using and promoting of its profound level.
Therefore it provides the stable bipolar power supply of a kind of power supply performance is the task of top priority.
Summary of the invention
It is an object of the invention to overcome bipolar power supply of the prior art to exist for unstable the lacking of electrical property
Fall into, it is provided that a kind of based on audion expand current circuit bipolarity switching power supply.
The present invention is achieved through the following technical solutions: a kind of bipolarity switch expanding current circuit based on audion
Regulated power supply, mainly by control chip U, transformator T, reference voltage circuit, audion VT1, with control
Audion that the OUT pin of chip U is connected expands current circuit, N pole after resistance R11 with control chip U
The diode D1 that AO pin is connected, P pole is connected with the base stage of audion VT1, positive pole is through resistance
After R12 the colelctor electrode with audion VT1 be connected, polar capacitor C7, the P pole of minus earth and transformator
The non-same polarity of T secondary inductance coil L3 is connected, N pole after polar capacitor C6 with transformator T secondary
The diode D5 that the Same Name of Ends of inductance coil L3 is connected, one end is connected with the VCC pin of control chip U
Connect, resistance R8 that the other end is connected with reference voltage circuit, be serially connected in reference voltage circuit and transformator T
Former limit inductance coil L1 between micro-processor interface circuit, and expand current circuit and control chip with audion respectively
The ON-OFF control circuit composition that the I pin of U is connected；The emitter stage of described audion VT1 and control chip
The Same Name of Ends of U and transformator T former limit inductance coil L2 is connected with reference voltage circuit respectively；Described open
The non-same polarity closing control circuit limit former with transformator T inductance coil L2 is connected；Described control chip U
GND pin and the equal ground connection of RC pin.
Described audion expands current circuit by audion VT4, audion VT5, audion VT6, amplifier
P2, positive pole electrode input end with amplifier P2 after resistance R22 is connected, negative pole is after resistance R21
Polar capacitor C10, the N pole of ground connection is connected with the positive pole of polar capacitor C10, P pole is after resistance R23
The diode D7 being connected with the emitter stage of audion VT4, positive pole after resistance R24 with diode D7's
The polar capacitor C12 that P pole is connected, negative pole colelctor electrode with audion VT5 after resistance R27 is connected,
Negative pole colelctor electrode with audion VT6 after resistance R29 is connected, positive pole after resistance R26 with amplifier
The polar capacitor C11 that the negative input of P2 is connected, one end is connected with the colelctor electrode of audion VT6,
Resistance R34, the N pole of other end ground connection is connected with the base stage of audion VT6, P pole is after resistance R30
The diode D9 being connected with the base stage of audion VT5, positive pole defeated with amplifier P2 after resistance R28
Go out the polar capacitor that end is connected, negative pole emitter stage with audion VT6 after adjustable resistance R33 is connected
C13, N pole colelctor electrode with audion VT4 after resistance R25 is connected, P pole after resistance R31 with
The diode D8 that the emitter stage of audion VT5 is connected, and the emitter stage phase of one end and audion VT5
The resistance R32 composition that connection, the other end are connected with the negative pole of polar capacitor C13；Described audion VT4
Base stage be connected with the electrode input end of amplifier P2；The positive pole of described polar capacitor C10 is as audion
Expand the input of current circuit and be connected with the OUT pin of control chip U；Described audion VT6 sends out
Emitter-base bandgap grading expands the outfan of current circuit as audion and is connected with ON-OFF control circuit.
Described reference voltage circuit by amplifier P1, audion VT2, negative pole after resistance R3 with audion
The polar capacitor that the base stage of VT2 is connected, positive pole anelectrode with amplifier P1 after resistance R1 is connected
C3, positive pole is connected with the emitter stage of audion VT2 after resistance R7, negative pole is electric with the former limit of transformator T
The polar capacitor C5 that is connected of Same Name of Ends of sense coil L1, negative pole negative with amplifier P1 after resistance R6
The polarity electricity that pole input is connected, positive pole is connected with the RC pin of control chip U after resistance R13
Holding C2, after negative pole resistance R2, the outfan with amplifier P1 is connected, positive pole is sent out with audion VT1's
The polar capacitor C1 that emitter-base bandgap grading is connected, one end is connected with the negative pole of polar capacitor C1, the other end and three poles
The resistance R9 that the emitter stage of pipe VT1 is connected, and one end is connected, separately with the negative pole of polar capacitor C11
The resistance R10 composition that one end is connected with the AO pin of control chip U；The negative electrode of described amplifier P1
Ground connection；The grounded collector of described audion VT2, its emitter stage after resistance R8 with control chip U's
VCC pin is connected；The VR pin of described control chip U is connected with the positive pole of polar capacitor C2；
The anelectrode of described amplifier P1 and the positive pole of polar capacitor C1 are collectively forming the input of reference voltage circuit；
The electrode input end of described amplifier P1 is connected with micro-processor interface circuit.
Described ON-OFF control circuit is by field effect transistor MOS, and audion VT3, P pole is through adjustable resistance R14
Be connected with the grid of field effect transistor MOS afterwards, two poles that N pole is connected with the emitter stage of audion VT6
Pipe D3, negative pole is connected with the source electrode of field effect transistor MOS, positive pole after resistance R15 with control chip U
The polar capacitor C9 that is connected of I pin, positive pole is connected with the I pin of control chip U, minus earth
Polar capacitor C8, one end is connected with the source electrode of field effect transistor MOS, the other end and audion VT3
Resistance R16, the N pole that base stage is connected is connected with the drain electrode of field effect transistor MOS, P pole is through resistance R17
Zener diode D4, the N pole that emitter stage with audion VT3 is connected afterwards after resistance R20 with transformation
The Same Name of Ends of device T secondary inductance coil L3 is connected, P pole after resistance R18 with audion VT3 send out
The Zener diode D6 that emitter-base bandgap grading is connected, and one end is connected with the negative pole of polar capacitor C6, the other end
The resistance R19 composition being connected with the P pole of Zener diode D6；The colelctor electrode of described audion VT3 connects
Ground；The non-same polarity of the drain electrode of field effect transistor MOS limit former with transformator T inductance coil L2 is connected.
Described micro-processor interface circuit is by N pole limit inductance coil L1 former with transformator T of the same name after resistance R5
The diode D2 that end is connected, P pole electrode input end with amplifier P1 after resistance R4 is connected, one
End be connected with the electrode input end of amplifier P1, other end limit former with transformator T inductance coil L1 same
The name inductance L4 that is connected of end, and positive pole is connected with the P pole of diode D2, negative pole and transformator T
The polar capacitor C4 composition that the non-same polarity of former limit inductance coil L1 is connected.
For the practical effect of the present invention, described control chip U the most preferentially uses the integrated core of UC3845
Sheet realizes.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) voltage of input can be automatically adjusted by the present invention, effectively ensure that the present invention can export surely
Fixed voltage, thus improve the accuracy that the various functions of battery protection circuit is detected by the present invention.
(2) present invention can effectively improve the intensity of electric current, load capacity is expanded and flow to more than 10A, thus
The present invention can export stable powerful voltage x current, and improve the present invention can be to battery protecting circuit simultaneously
Plate detects accurately.
(3) control chip of the present invention have employed the integrated core of UC3845, this chip have blood pressure lowering, voltage stabilizing,
Programmable current limits and the function of overcurrent protection, ensures that the present invention can export stable electricity
Pressure.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the audion expansion current circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but the enforcement of the present invention
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by control chip U, transformator T, reference voltage circuit, three poles
Pipe VT1, the audion being connected with the OUT pin of control chip U expands current circuit, and N pole is through resistance R11
Be connected with the AO pin of control chip U afterwards, diode that P pole is connected with the base stage of audion VT1
D1, positive pole colelctor electrode with audion VT1 after resistance R12 is connected, the polar capacitor of minus earth
C7, P pole is connected with the non-same polarity of transformator T secondary inductance coil L3, N pole is through polar capacitor C6
The diode D5 that Same Name of Ends with transformator T secondary inductance coil L3 is connected afterwards, one end and control chip
The resistance R8 that VCC pin is connected, the other end is connected with reference voltage circuit of U, is serially connected in benchmark
Micro-processor interface circuit between potential circuit and the former limit inductance coil L1 of transformator T, and respectively with audion
Expand the ON-OFF control circuit composition that current circuit is connected with the I pin of control chip U；Described audion VT1
Emitter stage and control chip U and transformator T former limit inductance coil L2 Same Name of Ends respectively with benchmark electricity
Volt circuit is connected；The non-same polarity of described ON-OFF control circuit limit former with transformator T inductance coil L2 is connected
Connect；The GND pin of described control chip U and the equal ground connection of RC pin.
Wherein, described reference voltage circuit by amplifier P1, audion VT2, resistance R1, resistance R2,
Resistance R3, resistance R6, resistance R7, resistance R9, resistance R10, resistance R13, polar capacitor C1,
Polar capacitor C2, polar capacitor C3, and polar capacitor C5 form.
During connection, the negative pole of polar capacitor C3 base stage with audion VT2 after resistance R3 is connected,
Its positive pole anelectrode with amplifier P1 after resistance R1 is connected.The positive pole of polar capacitor C5 is through resistance
Be connected with the emitter stage of audion VT2 after R7, its negative pole limit former with transformator T inductance coil L1 same
Name end is connected.
Meanwhile, the negative pole of polar capacitor C2 negative input with amplifier P1 after resistance R6 be connected,
Its positive pole RC pin with control chip U after resistance R13 is connected.The negative pole resistance of polar capacitor C1
After R2, the outfan with amplifier P1 is connected, its positive pole is connected with the emitter stage of audion VT1.Electricity
One end of resistance R9 is connected with the negative pole of polar capacitor C1, the emitter stage phase of its other end and audion VT1
Connect.One end of resistance R10 is connected with the negative pole of polar capacitor C11, its other end and control chip U
AO pin be connected.
The negative electrode ground connection of described amplifier P1；The grounded collector of described audion VT2, its emitter stage
After resistance R8, the VCC pin with control chip U is connected；The VR pin of described control chip U with
The positive pole of polar capacitor C2 is connected；The anelectrode of described amplifier P1 is common with the positive pole of polar capacitor C1
Form the input of reference voltage circuit；The electrode input end of described amplifier P1 is connected with micro-processor interface circuit
And be connected with external power source.
Further, described ON-OFF control circuit is by field effect transistor MOS, audion VT3, adjustable resistance
R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, polarity
Electric capacity C8, polar capacitor C9, diode D3, Zener diode D4, and Zener diode D6 form.
During connection, the P pole of diode D3 after adjustable resistance R14 with the grid phase of field effect transistor MOS
Connect, its N pole is connected with the emitter stage of audion VT6.The negative pole of polar capacitor C9 and field effect transistor
The source electrode of MOS is connected, its positive pole I pin with control chip U after resistance R15 is connected.Polarity
Electric capacity C8 positive pole is connected with the I pin of control chip U, its minus earth.One end of resistance R16 and field
The source electrode of effect pipe MOS is connected, its other end is connected with the base stage of audion VT3.
Meanwhile, the N pole of Zener diode D4 be connected with the drain electrode of field effect transistor MOS, its P pole warp
After resistance R17, the emitter stage with audion VT3 is connected.The N pole of Zener diode D6 is through resistance R20
Afterwards the Same Name of Ends with transformator T secondary inductance coil L3 be connected, its P pole after resistance R18 with three poles
The emitter stage of pipe VT3 is connected, and one end of resistance R19 is connected with the negative pole of polar capacitor C6, it
The other end is connected with the P pole of Zener diode D6.The grounded collector of described audion VT3；Field effect
Should the non-same polarity of drain electrode limit former with transformator T inductance coil L2 of pipe MOS be connected.
Further, described micro-processor interface circuit by resistance R4, resistance R5, diode D2, inductance L4,
And polar capacitor C4 composition.
During connection, the N pole of diode D2 limit inductance coil L1 former with transformator T same after resistance R5
Name end is connected, its P pole electrode input end with amplifier P1 after resistance R4 is connected.Inductance L4
One end be connected with the electrode input end of amplifier P1, its other end and transformator T former limit inductance coil
The Same Name of Ends of L1 is connected.The positive pole of polar capacitor C4 is connected with the P pole of diode D2, its negative pole with
The non-same polarity of transformator T former limit inductance coil L1 is connected.
As in figure 2 it is shown, described audion expands current circuit by audion VT4, audion VT5, audion
VT6, amplifier P2, resistance R21, resistance R22, resistance R23, resistance R24, resistance R25, resistance
R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, resistance R32, adjustable
Resistance R33, resistance R34, polar capacitor C10, polar capacitor C11, polar capacitor C12, polar capacitor
C13, diode D7, diode D8, and diode D9 form.
During connection, the positive pole of polar capacitor C10 after resistance R22 with the electrode input end phase of amplifier P2
Connection, its negative pole ground connection after resistance R21.The N pole of diode D7 and the positive pole phase of polar capacitor C10
Connect, its P pole emitter stage with audion VT4 after resistance R23 is connected.Polar capacitor C12 is just
P pole with diode D7 after resistance R24, pole is connected, its negative pole after resistance R27 with audion VT5
Colelctor electrode be connected.The negative pole of polar capacitor C11 after resistance R29 with the colelctor electrode phase of audion VT6
Connect, its positive pole negative input with amplifier P2 after resistance R26 is connected.
Meanwhile, resistance R34 one end be connected with the colelctor electrode of audion VT6, its other end ground connection.Two
The N pole of pole pipe D9 is connected with the base stage of audion VT6, its P pole after resistance R30 with audion
The base stage of VT5 is connected.The positive pole of polar capacitor C13 after resistance R28 with the outfan of amplifier P2
Be connected, its negative pole emitter stage with audion VT6 after adjustable resistance R33 is connected.Diode D8
N pole colelctor electrode with audion VT4 after resistance R25 be connected, its P pole after resistance R31 with
The emitter stage of audion VT5 is connected.One end of resistance R32 is connected with the emitter stage of audion VT5,
Its other end is connected with the negative pole of polar capacitor C13.
The base stage of described audion VT4 is connected with the electrode input end of amplifier P2；Described polar capacitor
The positive pole of C10 expands the input of current circuit as audion and is connected with the OUT pin of control chip U；
The emitter stage of described audion VT6 expands the outfan of current circuit as audion and is connected with ON-OFF control circuit
Connect.
During operation, the voltage of input can be automatically adjusted by the present invention, effectively ensure that the present invention can be defeated
Go out stable voltage, thus improve the accuracy that the various functions of battery protection circuit is detected by the present invention.
The present invention can effectively improve the intensity of electric current, load capacity is expanded and flow to more than 10A, thus energy of the present invention
Exporting stable powerful voltage x current, improve the present invention can carry out standard to battery protection circuit simultaneously
True detection.Meanwhile, the control chip of the present invention have employed the integrated core of UC3845, this chip have blood pressure lowering,
Voltage stabilizing, programmable current limit and the function of overcurrent protection, ensure that the present invention can export surely
Fixed voltage.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. the bipolarity switching power supply expanding current circuit based on audion, it is characterised in that main
By control chip U, transformator T, reference voltage circuit, audion VT1, with the OUT of control chip U
Audion that pin is connected expands current circuit, N pole after resistance R11 with the AO pin phase of control chip U
Connect, the diode D1 that is connected with the base stage of audion VT1 of P pole, positive pole after resistance R12 with three poles
The colelctor electrode of pipe VT1 is connected, polar capacitor C7, the P pole of minus earth and transformator T secondary inductance line
Circle L3 non-same polarity be connected, N pole after polar capacitor C6 with transformator T secondary inductance coil L3
The diode D5 that is connected of Same Name of Ends, one end is connected with the VCC pin of control chip U, the other end
The resistance R8 being connected with reference voltage circuit, is serially connected in the former limit inductance of reference voltage circuit and transformator T
Micro-processor interface circuit between coil L1, and expand current circuit and the I pin of control chip U with audion respectively
The ON-OFF control circuit composition being connected；The emitter stage of described audion VT1 and control chip U and transformation
The Same Name of Ends of device T former limit inductance coil L2 is connected with reference voltage circuit respectively；Described ON-OFF control circuit
The non-same polarity of limit inductance coil L2 former with transformator T is connected；The GND pin of described control chip U
Ground connection equal with RC pin.
A kind of bipolarity switch voltage-stabilizing electricity expanding current circuit based on audion the most according to claim 1
Source, it is characterised in that described audion expand current circuit by audion VT4, audion VT5, audion VT6,
Amplifier P2, positive pole electrode input end with amplifier P2 after resistance R22 is connected, negative pole is through resistance
After R21, polar capacitor C10, the N pole of ground connection is connected with the positive pole of polar capacitor C10, P pole is through resistance
The diode D7 that after R23, emitter stage with audion VT4 is connected, positive pole after resistance R24 with diode
The polarity electricity that the P pole of D7 is connected, negative pole colelctor electrode with audion VT5 after resistance R27 is connected
Holding C12, negative pole colelctor electrode with audion VT6 after resistance R29 is connected, positive pole is after resistance R26
The colelctor electrode of the polar capacitor C11 being connected with the negative input of amplifier P2, one end and audion VT6
Be connected, resistance R34, the N pole of other end ground connection is connected with the base stage of audion VT6, P pole is through electricity
The diode D9 that is connected with the base stage of audion VT5 after resistance R30, positive pole after resistance R28 with amplification
The outfan of device P2 is connected, negative pole emitter stage with audion VT6 after adjustable resistance R33 is connected
Polar capacitor C13, N pole colelctor electrode with audion VT4 after resistance R25 be connected, P pole is through electricity
The diode D8 that is connected with the emitter stage of audion VT5 after resistance R31, and one end and audion VT5
The resistance R32 that emitter stage is connected, the other end is connected with the negative pole of polar capacitor C13 composition；Described
The base stage of audion VT4 is connected with the electrode input end of amplifier P2；Described polar capacitor C10 is just
Pole is expanded the input of current circuit as audion and is connected with the OUT pin of control chip U；Described three poles
The emitter stage of pipe VT6 expands the outfan of current circuit as audion and is connected with ON-OFF control circuit.
A kind of bipolarity switch voltage-stabilizing electricity expanding current circuit based on audion the most according to claim 2
Source, it is characterised in that described reference voltage circuit is by amplifier P1, audion VT2, and negative pole is through resistance R3
Base stage with audion VT2 is connected afterwards, positive pole anelectrode with amplifier P1 after resistance R1 is connected
Polar capacitor C3, positive pole emitter stage with audion VT2 after resistance R7 is connected, negative pole and transformation
The polar capacitor C5 that the Same Name of Ends of device T former limit inductance coil L1 is connected, negative pole after resistance R6 with amplification
The negative input of device P1 is connected, positive pole RC pin with control chip U after resistance R13 is connected
Polar capacitor C2, after negative pole resistance R2 the outfan with amplifier P1 be connected, positive pole and audion
The polar capacitor C1 that the emitter stage of VT1 is connected, one end is connected with the negative pole of polar capacitor C1, another
The resistance R9 that is connected with the emitter stage of audion VT1 of end, and the negative pole phase of one end and polar capacitor C11
The resistance R10 composition that connection, the other end are connected with the AO pin of control chip U；Described amplifier P1
Negative electrode ground connection；The grounded collector of described audion VT2, its emitter stage after resistance R8 with control
The VCC pin of chip U is connected；The VR pin of described control chip U and the positive pole of polar capacitor C2
It is connected；The anelectrode of described amplifier P1 and the positive pole of polar capacitor C1 are collectively forming reference voltage circuit
Input；The electrode input end of described amplifier P1 is connected with micro-processor interface circuit.
A kind of bipolarity switch voltage-stabilizing electricity expanding current circuit based on audion the most according to claim 3
Source, it is characterised in that described ON-OFF control circuit is by field effect transistor MOS, and audion VT3, P pole warp can
Adjust after resistance R14 be connected with the grid of field effect transistor MOS, the emitter stage phase of N pole and audion VT6
Connect diode D3, negative pole is connected with the source electrode of field effect transistor MOS, positive pole after resistance R15 and
The polar capacitor C9 that the I pin of control chip U is connected, positive pole is connected with the I pin of control chip U,
The polar capacitor C8 of minus earth, one end is connected with the source electrode of field effect transistor MOS, the other end and three poles
Resistance R16, the N pole that the base stage of pipe VT3 is connected is connected with the drain electrode of field effect transistor MOS, P pole warp
Zener diode D4, the N pole that after resistance R17, emitter stage with audion VT3 is connected is through resistance R20
Afterwards the Same Name of Ends with transformator T secondary inductance coil L3 be connected, P pole after resistance R18 with audion
The Zener diode D6 that the emitter stage of VT3 is connected, and one end is connected with the negative pole of polar capacitor C6,
The resistance R19 composition that the other end is connected with the P pole of Zener diode D6；The collection of described audion VT3
Electrode ground connection；The non-same polarity of the drain electrode of field effect transistor MOS limit former with transformator T inductance coil L2 is connected
Connect.
A kind of bipolarity switch voltage-stabilizing electricity expanding current circuit based on audion the most according to claim 4
Source, it is characterised in that described micro-processor interface circuit is by N pole limit former with transformator T inductor wire after resistance R5
The Same Name of Ends of circle L1 is connected, P pole electrode input end with amplifier P1 after resistance R4 is connected two
Pole pipe D2, one end is connected with the electrode input end of amplifier P1, the other end and transformator T former limit inductance
The inductance L4 that the Same Name of Ends of coil L1 is connected, and positive pole is connected with the P pole of diode D2, negative pole
The polar capacitor C4 composition that the non-same polarity of limit inductance coil L1 former with transformator T is connected.
A kind of bipolarity switch voltage-stabilizing electricity expanding current circuit based on audion the most according to claim 5
Source, it is characterised in that described control chip U is the integrated chip of UC3845.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410189.0A CN105978347A (en) | 2016-06-12 | 2016-06-12 | Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610410189.0A CN105978347A (en) | 2016-06-12 | 2016-06-12 | Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit |
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| CN105978347A true CN105978347A (en) | 2016-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055027A (en) * | 2017-11-25 | 2018-05-18 | 海宁海微电子科技有限公司 | A kind of high-frequency switch circuit |
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2016
- 2016-06-12 CN CN201610410189.0A patent/CN105978347A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055027A (en) * | 2017-11-25 | 2018-05-18 | 海宁海微电子科技有限公司 | A kind of high-frequency switch circuit |
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Application publication date: 20160928 |