CN105958831A - Voltage regulation circuit based bipolar switch voltage-stabilizing power supply - Google Patents
Voltage regulation circuit based bipolar switch voltage-stabilizing power supply Download PDFInfo
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- CN105958831A CN105958831A CN201610412574.9A CN201610412574A CN105958831A CN 105958831 A CN105958831 A CN 105958831A CN 201610412574 A CN201610412574 A CN 201610412574A CN 105958831 A CN105958831 A CN 105958831A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—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
- H02M3/3353—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 having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
Abstract
The invention discloses a voltage regulation circuit based bipolar switch voltage-stabilizing power supply. The bipolar switch voltage-stabilizing power supply is characterized by mainly comprising a control chip U1, a transformer T, a reference voltage circuit, a triode VT1, a diode D2, a polar capacitor C7, a micro-processing circuit, a voltage regulation circuit, a switch control circuit and the like, wherein the micro-processing circuit is connected between the reference voltage circuit and the primary side inductive coil L1 of the transformer T in series; the voltage regulation circuit is connected between the reference voltage circuit and the VCC pin of the control chip U1 in series; and the switch control circuit is connected with the OUT pin and the I pin of the control chip U1 separately. By adoption of the bipolar switch voltage-stabilizing power supply, the input voltage can be automatically adjusted, so that it is ensured that the bipolar switch voltage-stabilizing power supply can effectively output stable voltage; and therefore, the detection accuracy on various functions of a battery protection circuit board by the bipolar switch voltage-stabilizing power supply can be improved consequently.
Description
Technical field
The present invention relates to electronic applications, specifically, be a kind of bipolarity based on voltage-regulating circuit switch
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 voltage-regulating circuit bipolarity switching power supply.
The present invention is achieved through the following technical solutions: a kind of bipolarity based on voltage-regulating circuit switch is steady
Voltage source, mainly by control chip U1, transformator T, reference voltage circuit, audion VT1, N pole warp
After resistance R11, the AO pin with control chip U1 is connected, P pole is connected with the base stage of audion VT1
The diode D1 connect, positive pole colelctor electrode with audion VT1 after resistance R12 is connected, minus earth
Polar capacitor C7, P pole be connected with the non-same polarity of transformator T secondary inductance coil L3, N pole is through pole
The diode D5 being connected with the Same Name of Ends of transformator T secondary inductance coil L3 after property electric capacity C6, is serially connected in
Voltage-regulating circuit between the VCC pin of reference voltage circuit and control chip U1, one end and control core
The resistance R8 that VCC pin is connected, the other end is connected with voltage-regulating circuit of sheet U1, is serially connected in base
Micro-processor interface circuit between quasi-potential circuit and the former limit inductance coil L1 of transformator T, and respectively with control
The ON-OFF control circuit composition that the OUT pin of chip U1 is connected with I pin；Described audion VT1's
The Same Name of Ends of emitter stage and control chip U1 and transformator T former limit inductance coil L2 respectively with reference voltage
Circuit is connected；The non-same polarity of described ON-OFF control circuit limit former with transformator T inductance coil L2 is connected；
The GND pin of described control chip U1 and the equal ground connection of RC pin.
Described voltage-regulating circuit by voltage stabilizing chip U2, audion VT4, positive pole after resistance R22 with steady
Pressure chip U2 VIN pin be connected, negative pole as voltage-regulating circuit input and and reference voltage
The polar capacitor C10 that circuit is connected, positive pole sequentially after resistance R23 and resistance R24 with polar capacitor C10
The polarity electricity that positive pole is connected, negative pole ADJ pin with voltage stabilizing chip U2 after resistance R25 is connected
Holding C11, one end is connected with the ADJ pin of control chip U2, the base stage of the other end and audion VT4
The adjustable resistance R26 being connected, positive pole VOUT pin with voltage stabilizing chip U2 after resistance R27 is connected
Connect, polar capacitor C12, P pole that negative pole is connected with the emitter stage of audion VT4 after resistance R30 with
The positive pole of polar capacitor C12 is connected, N pole colelctor electrode with audion VT4 after resistance R28 is connected
Diode D9, P pole be connected with the positive pole of polar capacitor C12, N pole after resistance R29 with diode
The Zener diode D8 that the N pole of D9 is connected, and P pole after resistance R21 with polar capacitor C10's
The diode D7 group that positive pole is connected, N pole is connected with the P pole of Zener diode D8 after resistance R31
Become；The N pole of described diode D9 be connected with the negative pole of polar capacitor C11 after ground connection；Described voltage stabilizing two
The N pole of pole pipe D8 as the outfan of voltage-regulating circuit and after resistance R8 with control chip U1's
VCC pin is connected.
Described reference voltage circuit by amplifier P, 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 P 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 after resistance R6 with the negative pole of amplifier P
The polar capacitor that input is connected, positive pole is connected with the RC pin of control chip U1 after resistance R13
C2, after negative pole resistance R2 the outfan with amplifier P be connected, the emitter stage of positive pole and audion VT1
The polar capacitor C1 being connected, one end is connected with the negative pole of polar capacitor C1, the other end and audion VT1
The resistance R9 that is connected of emitter stage, and one end is connected with the negative pole of polar capacitor C11, the other end with
The resistance R10 composition that the AO pin of control chip U1 is connected；The negative electrode ground connection of described amplifier P；
The grounded collector of described audion VT2, its emitter stage is connected with the negative pole of polar capacitor C10；Described
The VR pin of control chip U1 is connected with the positive pole of polar capacitor C2；The anelectrode of described amplifier P
With the input that the positive pole of polar capacitor C1 is collectively forming reference voltage circuit；The positive pole of described amplifier P is defeated
Enter end to be 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, N pole is connected with the OUT pin of control chip U1
Diode D3, negative pole is connected with the source electrode of field effect transistor MOS, positive pole after resistance R15 with control core
The polar capacitor C9 that the I pin of sheet U1 is connected, positive pole is connected with the I pin of control chip U1, bears
The polar capacitor C8 of pole ground connection, one end is connected with the source electrode of field effect transistor MOS, the other end and audion
Resistance R16, the N pole that the base stage of VT3 is connected is connected with the drain electrode of field effect transistor MOS, P pole is through electricity
Zener diode D4, the N pole being connected with the emitter stage of audion VT3 after resistance R17 is after resistance R20
Be connected with the Same Name of Ends of transformator T secondary inductance coil L3, P pole after resistance R18 with audion VT3
The Zener diode D6 that is connected of emitter stage, and one end is connected, separately with the negative pole of polar capacitor C6
The resistance R19 composition that one end is connected with the P pole of Zener diode D6；The current collection of described audion VT3
Pole 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.
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 P after resistance R4 is connected, one
End be connected with the electrode input end of amplifier P, other end limit former with transformator T inductance coil L1 of the same name
The inductance L4 that end is connected, and positive pole is connected with the P pole of diode D2, negative pole is former with transformator T
The polar capacitor C4 composition that the non-same polarity of limit inductance coil L1 is connected.
For the practical effect of the present invention, described control chip U1 the most preferentially uses UC3845 integrated
Chip realizes；The most described voltage stabilizing chip U2 the most preferentially have employed the integrated chip of LM317T and 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) voltage pulsation of input can be adjusted by the present invention, makes voltage keep stable, ensures that
The present invention can export stable voltage.
(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 voltage-regulating 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 U1, transformator T, reference voltage circuit, three poles
Pipe VT1, N pole AO pin with control chip U1 after resistance R11 is connected, P pole and audion
The diode D1 that the base stage of VT1 is connected, positive pole after resistance R12 with the colelctor electrode phase of audion VT1
Connection, polar capacitor C7, the P pole of minus earth and the non-same polarity of transformator T secondary inductance coil L3
Be connected, N pole Same Name of Ends with transformator T secondary inductance coil L3 after polar capacitor C6 is connected
Diode D5, the Voltage Cortrol being serially connected between the VCC pin of reference voltage circuit and control chip U1 electricity
Road, one end is connected with the VCC pin of control chip U1, the other end is connected with voltage-regulating circuit
Resistance R8, the micro-process electricity being serially connected between reference voltage circuit and the former limit inductance coil L1 of transformator T
Road, and the ON-OFF control circuit composition being connected with OUT pin and the I pin of control chip U1 respectively；
The emitter stage of described audion VT1 and control chip U1's and transformator T former limit inductance coil L2 is of the same name
End is connected with reference voltage circuit respectively；Described ON-OFF control circuit and transformator T former limit inductance coil L2
Non-same polarity be connected；The GND pin of described control chip U1 and the equal ground connection of RC pin.
Wherein, described reference voltage circuit by amplifier P, 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 P after resistance R1 is connected.The positive pole of polar capacitor C5 is through resistance R7
Be connected with the emitter stage of audion VT2 afterwards, its negative pole limit former with transformator T inductance coil L1 of the same name
End is connected.
Meanwhile, the negative pole of polar capacitor C2 negative input with amplifier P after resistance R6 be connected,
Its positive pole RC pin with control chip U1 after resistance R13 is connected.The negative electricity of polar capacitor C1
Be connected with the outfan of amplifier P after resistance R2, its positive pole is connected with the emitter stage of audion VT1.
One end of resistance R9 is connected with the negative pole of polar capacitor C1, the emitter stage of its other end and audion VT1
It is connected.One end of resistance R10 is connected with the negative pole of polar capacitor C11, its other end and control chip
The AO pin of U1 is connected.
The negative electrode ground connection of described amplifier P；The grounded collector of described audion VT2, its emitter stage with
The negative pole of polar capacitor C10 is connected；The VR pin of described control chip U1 is with polar capacitor C2 just
Pole is connected；The anelectrode of described amplifier P and the positive pole of polar capacitor C1 are collectively forming reference voltage circuit
Input；The electrode input end of described amplifier P is connected with micro-processor interface circuit and is connected with external power source
Connect.
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 OUT pin of control chip U1.The negative pole of polar capacitor C9 is imitated with field
Should the source electrode of pipe MOS be connected, its positive pole I pin with control chip U1 after resistance R15 is connected.
Polar capacitor C8 positive pole is connected with the I pin of control chip U1, its minus earth.The one of resistance R16
End is connected with the source electrode of field effect transistor MOS, 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 P after resistance R4 is connected.Inductance L4's
One end is connected with the electrode input end of amplifier P, its other end and transformator T former limit inductance coil L1
Same Name of Ends is connected.The positive pole of polar capacitor C4 is connected with the P pole of diode D2, its negative pole and transformation
The non-same polarity of device T former limit inductance coil L1 is connected.
As in figure 2 it is shown, described voltage-regulating circuit is by voltage stabilizing chip U2, audion VT4, resistance R21,
Resistance R22, resistance R23, resistance R24, resistance R25, adjustable resistance R26, resistance R27, resistance
R28, resistance R29, resistance R30, resistance R31, polar capacitor C10, polar capacitor C11, polarity electricity
Hold C12, diode D7, diode D8, and diode D9 composition.
During connection, the positive pole of polar capacitor C10 after resistance R22 with the VIN pin phase of voltage stabilizing chip U2
Connect, its negative pole as the input of voltage-regulating circuit and is connected with reference voltage circuit.Polar capacitor
The positive pole of C11 is sequentially connected through resistance R23 positive pole with polar capacitor C10 after resistance R24, it is born
Pole ADJ pin with voltage stabilizing chip U2 after resistance R25 is connected.One end of adjustable resistance R26 and control
The ADJ pin of coremaking sheet U2 is connected, its other end is connected with the base stage of audion VT4.
Meanwhile, the positive pole of polar capacitor C12 after resistance R27 with the VOUT pin phase of voltage stabilizing chip U2
Connect, its negative pole is connected with the emitter stage of audion VT4.The P pole of diode D9 is after resistance R30
Be connected with the positive pole of polar capacitor C12, its N pole after resistance R28 with the colelctor electrode phase of audion VT4
Connect.The P pole of Zener diode D8 is connected with the positive pole of polar capacitor C12, its N pole is through resistance R29
It is connected with the N pole of diode D9 afterwards.The P pole of diode D7 after resistance R21 with polar capacitor C10
Positive pole be connected, P pole with Zener diode D8 after resistance R31, its N pole is connected.
The N pole of described diode D9 be connected with the negative pole of polar capacitor C11 after ground connection；Described voltage stabilizing two
The N pole of pole pipe D8 as the outfan of voltage-regulating circuit and after resistance R8 with control chip U1's
VCC pin is connected.
During operation, the voltage of input can be automatically adjusted by the present invention, and the present invention can also be to the electricity of input
Pressure fluctuation is adjusted, and makes voltage keep stable, thus improves each to battery protection circuit of the present invention
The accuracy of item Function detection.Meanwhile, the control chip of the present invention have employed the integrated core of UC3845, this chip
There is blood pressure lowering, voltage stabilizing, programmable current restriction and the function of overcurrent protection, ensure that this
The voltage that bright energy output is stable.In order to preferably implement the present invention, described voltage stabilizing chip U2 the most preferentially have employed
The integrated chip of LM317T realizes.
According to above-described embodiment, can well realize the present invention.
Claims (7)
1. a bipolarity switching power supply based on voltage-regulating circuit, it is characterised in that mainly by
Control chip U1, transformator T, reference voltage circuit, audion VT1, N pole after resistance R11 with control
The diode D1 that the AO pin of coremaking sheet U1 is connected, P pole is connected with the base stage of audion VT1,
Positive pole colelctor electrode with audion VT1 after resistance R12 is connected, the polar capacitor C7, P of minus earth
Pole is connected with the non-same polarity of transformator T secondary inductance coil L3, N pole after polar capacitor C6 with change
The diode D5 that the Same Name of Ends of depressor T secondary inductance coil L3 is connected, be serially connected in reference voltage circuit with
The VCC pipe of the voltage-regulating circuit between the VCC pin of control chip U1, one end and control chip U1
The resistance R8 that foot is connected, the other end is connected with voltage-regulating circuit, is serially connected in reference voltage circuit and change
Micro-processor interface circuit between the former limit inductance coil L1 of depressor T, and respectively with the OUT of control chip U1
The ON-OFF control circuit composition that pin is connected with I pin；The emitter stage of described audion VT1 and control core
The Same Name of Ends of sheet U1 and transformator T former limit inductance coil L2 is connected with reference voltage circuit respectively；Institute
The non-same polarity stating ON-OFF control circuit limit former with transformator T inductance coil L2 is connected；Described control chip
The GND pin of U1 and the equal ground connection of RC pin.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 1,
It is characterized in that, described voltage-regulating circuit is by voltage stabilizing chip U2, audion VT4, and positive pole is through resistance R22
Afterwards the VIN pin with voltage stabilizing chip U2 be connected, negative pole as voltage-regulating circuit input and and base
The polar capacitor C10 that quasi-potential circuit is connected, positive pole sequentially after resistance R23 and resistance R24 with polarity
The positive pole of electric capacity C10 is connected, negative pole ADJ pin with voltage stabilizing chip U2 after resistance R25 is connected
Polar capacitor C11, one end is connected with the ADJ pin of control chip U2, the other end and audion VT4
The adjustable resistance R26 that is connected of base stage, positive pole VOUT with voltage stabilizing chip U2 after resistance R27 manage
Polar capacitor C12, the P pole that foot is connected, negative pole is connected with the emitter stage of audion VT4 is through resistance R30
Afterwards the positive pole with polar capacitor C12 be connected, N pole after resistance R28 with the colelctor electrode phase of audion VT4
Connect diode D9, P pole be connected with the positive pole of polar capacitor C12, N pole after resistance R29 with two
The Zener diode D8 that the N pole of pole pipe D9 is connected, and P pole after resistance R21 with polar capacitor
The diode that the positive pole of C10 is connected, N pole is connected with the P pole of Zener diode D8 after resistance R31
D7 forms；The N pole of described diode D9 be connected with the negative pole of polar capacitor C11 after ground connection；Described surely
Pressure diode D8 N pole as the outfan of voltage-regulating circuit and after resistance R8 with control chip U1
VCC pin be connected.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 2,
It is characterized in that, described reference voltage circuit by amplifier P, audion VT2, negative pole after resistance R3 with
The pole that the base stage of audion VT2 is connected, positive pole anelectrode with amplifier P after resistance R1 is connected
Property electric capacity C3, positive pole emitter stage with audion VT2 after resistance R7 is connected, negative pole and transformator T
The polar capacitor C5 that the Same Name of Ends of former limit inductance coil L1 is connected, negative pole after resistance R6 with amplifier P
The pole that negative input is connected, positive pole is connected with the RC pin of control chip U1 after resistance R13
Property electric capacity C2, after negative pole resistance R2 the outfan with amplifier P be connected, positive pole and audion VT1
The polar capacitor C1 that emitter stage is connected, one end is connected with the negative pole of polar capacitor C1, the other end and three
The resistance R9 that the emitter stage of pole pipe VT1 is connected, and one end is connected with the negative pole of polar capacitor C11,
The resistance R10 composition that the other end is connected with the AO pin of control chip U1；The negative electricity of described amplifier P
Pole ground connection；The grounded collector of described audion VT2, its emitter stage is connected with the negative pole of polar capacitor C10
Connect；The VR pin of described control chip U1 is connected with the positive pole of polar capacitor C2；Described amplifier P
The positive pole of anelectrode and polar capacitor C1 be collectively forming the input of reference voltage circuit；Described amplifier P
Electrode input end be connected with micro-processor interface circuit.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 3,
It is characterized in that, described ON-OFF control circuit is by field effect transistor MOS, and audion VT3, P pole is through adjustable electric
Be connected with the grid of field effect transistor MOS after resistance R14, the OUT pin phase of N pole and control chip U1
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 U1 is connected, positive pole is connected with the I pin of control chip U1
Connect, the polar capacitor C8 of minus earth, one end is connected with the source electrode of field effect transistor MOS, the other end with
Resistance R16, the N pole that the base stage of audion VT3 is connected is connected with the drain electrode of field effect transistor MOS, P
Zener diode D4, the N pole that pole emitter stage with audion VT3 after resistance R17 is connected is through resistance
After R20 the Same Name of Ends with transformator T secondary inductance coil L3 be connected, P pole after resistance R18 with three poles
The Zener diode D6 that the emitter stage of pipe VT3 is connected, and one end is connected with the negative pole of polar capacitor C6
Connect, resistance R19 that the other end is connected with the P pole of Zener diode D6 composition；Described audion VT3
Grounded collector；The drain electrode of field effect transistor MOS and the non-same polarity of transformator T former limit inductance coil L2
It is connected.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 4,
It is characterized in that, described micro-processor interface circuit is by N pole limit inductance coil L1 former with transformator T after resistance R5
The diode that Same Name of Ends is connected, P pole electrode input end with amplifier P after resistance R4 is connected
D2, one end is connected with the electrode input end of amplifier P, the other end and transformator T former limit inductance coil L1
The inductance L4 that is connected of Same Name of Ends, and positive pole is connected with the P pole of diode D2, negative pole and transformation
The polar capacitor C4 composition that the non-same polarity of device T former limit inductance coil L1 is connected.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 5,
It is characterized in that, described control chip U1 is the integrated chip of UC3845.
A kind of bipolarity switching power supply based on voltage-regulating circuit the most according to claim 5,
It is characterized in that, described voltage stabilizing chip U2 is the integrated chip of LM317T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412574.9A CN105958831A (en) | 2016-06-12 | 2016-06-12 | Voltage regulation circuit based bipolar switch voltage-stabilizing power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412574.9A CN105958831A (en) | 2016-06-12 | 2016-06-12 | Voltage regulation circuit based bipolar switch voltage-stabilizing power supply |
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| CN105958831A true CN105958831A (en) | 2016-09-21 |
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|---|---|---|---|
| CN201610412574.9A Pending CN105958831A (en) | 2016-06-12 | 2016-06-12 | Voltage regulation circuit based bipolar switch voltage-stabilizing power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249797A (en) * | 2016-10-12 | 2016-12-21 | 成都赛昂电子科技有限公司 | A kind of constant-current driving type intelligence control system based on voltage-regulating circuit |
| CN106439754A (en) * | 2016-10-12 | 2017-02-22 | 成都赛昂电子科技有限公司 | Multi-circuit processing type intelligent control system |
| CN106647905A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on voltage adjusting circuit |
-
2016
- 2016-06-12 CN CN201610412574.9A patent/CN105958831A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249797A (en) * | 2016-10-12 | 2016-12-21 | 成都赛昂电子科技有限公司 | A kind of constant-current driving type intelligence control system based on voltage-regulating circuit |
| CN106439754A (en) * | 2016-10-12 | 2017-02-22 | 成都赛昂电子科技有限公司 | Multi-circuit processing type intelligent control system |
| CN106647905A (en) * | 2016-10-12 | 2017-05-10 | 成都赛昂电子科技有限公司 | Intelligent control system based on voltage adjusting circuit |
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Application publication date: 20160921 |
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| WD01 | Invention patent application deemed withdrawn after publication |