CN105807123B - Magnetize the current collection circuit of power supply - Google Patents
Magnetize the current collection circuit of power supply Download PDFInfo
- Publication number
- CN105807123B CN105807123B CN201610310164.3A CN201610310164A CN105807123B CN 105807123 B CN105807123 B CN 105807123B CN 201610310164 A CN201610310164 A CN 201610310164A CN 105807123 B CN105807123 B CN 105807123B
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- resistance
- operational amplifier
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- circuit
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses a kind of current collection circuits of power supply that magnetizes, including connecting terminal CN1, No. 2 pins of the connecting terminal CN1, resistance R1 is parallel between No. 3 pins, potentiometer VR1, potentiometer VR1 is connected with two-stage amplifying circuit, the two-stage amplifying circuit is connected with signal holding circuit, the signal holding circuit is connected with amplifying circuit, the amplifying circuit is connected with signal output apparatus, the signal output apparatus is connected with connecting terminal CN2, No. 1 of the connecting terminal CN1 is provided with No. I reset circuit between pin and signal holding circuit, No. 1 of the connecting terminal CN1 is provided with No. II reset circuit between pin and amplifying circuit.The present invention can real-time monitoring discharge time is very short and transient current is very big discharge current, inhibit null offset and noise jamming, accurately measure discharge current, cost is lower, can substantially reduce development cost.
Description
Technical field
The invention belongs to a kind of Acquisition Circuits, and in particular to a kind of current collection circuit for the power supply that magnetizes.
Background technique
The power supply that magnetizes uses pulsed magnetic field Magnitizing method, and alternating current is first changed into direct current and is stored electronically in capacitor, then
Make capacitor instantaneous discharge with large capacity reverse-blocking tetrode thyristor, a very strong pulsed magnetic field is generated in magnetizing coil, is made in coil
It is magnet magnetized.Capacitor pulse discharge time is very short (a few tens of milliseconds), and transient current is very big (kilo-ampere), needs to monitor at any time
Discharge current, it is ensured that the power supply that magnetizes is normal operating conditions.And common current collection circuit is not able to satisfy on-line measurement requirement.
Summary of the invention
The present invention proposes that the purpose is to provide a kind of electric current of power supply that magnetizes to adopt in order to solve the problems existing in the prior art
Collector.
The technical scheme is that a kind of current collection circuit for the power supply that magnetizes, including connecting terminal CN1, it is described to connect
Resistance R1, potentiometer VR1, potentiometer VR1 and two-stage amplifying circuit are parallel between No. 2 pins of line terminals CN1, No. 3 pins
It is connected, the two-stage amplifying circuit is connected with signal holding circuit, and the signal holding circuit is connected with amplifying circuit, described to put
Big circuit is connected with signal output apparatus, and the signal output apparatus is connected with connecting terminal CN2, and the 1 of the connecting terminal CN1
Number No. I reset circuit, No. 1 pin and amplifying circuit of the connecting terminal CN1 are provided between pin and signal holding circuit
Between be provided with No. II reset circuit.
The two-stage amplifying circuit includes operational amplifier U1, operational amplifier U2, resistance R2 ~ R10, diode D1, two
Pole pipe D2, capacitor C1, the one end resistance R2 connect potentiometer VR1, the other end and resistance R3, capacitor C1, diode D1 of resistance R2
Cathode, diode D2 anode and operational amplifier U1 the connection of 2 feet, the other end of resistance R3 and resistance R4, resistance R5
Connection, the other end of resistance R4 are connect with 6 feet of the other end of capacitor C1, resistance R7, resistance R8 and operational amplifier U1, electricity
The other end of resistance R8 is connect with 3 feet of operational amplifier U2, the other end connection GND of resistance R5, resistance R7.The one end resistance R6
GND is connected, the other end is connect with 3 feet of the anode of diode D1, the cathode of diode D2 and operational amplifier U1.Resistance
The one end R10 connects 2 feet of resistance R9, operational amplifier U2, and the other end connects GND, the other end and operational amplifier of resistance R9
The 10 feet connection of 6 feet and operational amplifier U3C of U2.
The signal holding circuit includes operational amplifier U3C, operational amplifier U3D, resistance R11 ~ R14, and diode D3 ~
D5, capacitor C2, No. I reset circuit includes triode Q1, resistance R15, R16.
The amplifying circuit includes operational amplifier U3A, operational amplifier U3B, resistance R17, resistance R20, field-effect tube
Q3, the signal output apparatus include operational amplifier U4, resistance R21 ~ R23, potentiometer VR2, No. II reset circuit packet
Triode Q3, resistance R18, R19 are included,
The one end the resistance R11 connects 13 feet, 14 feet of resistance R12, resistance R17 and operational amplifier U3, the other end
It is connect with 9 feet of the anode of diode D3 and operational amplifier U3C, the cathode of the other end of resistance R12 and diode D4, two
The anode of pole pipe D5 connects, and the other end of resistance R17 is connect with 5 feet of operational amplifier U3B, the cathode of diode D3 and two poles
The 8 feet connection of the anode, operational amplifier U3C of pipe D4, the one end resistance R13 connect the cathode of resistance R14 and diode D5, separately
One end is connect with 12 feet of operational amplifier U3, and the other end of resistance R14 is connect with resistance R15, capacitor C2, and resistance R15's is another
One end is connect with the collector c of triode Q1, and the other end of capacitor C2 connect GND, resistance R16 with the emitter e of triode Q1
One end connects 1 foot of resistance R18 and connecting terminal CN1, and the other end is connect with the base stage b of triode Q1.
The other end of the resistance R18 is connect with the base stage b of triode Q3, and the one end potentiometer VR2 connects operational amplifier
6 feet of 1 foot of U3A, 2 feet and U3B, the other end connect resistance R21, and the other end connects 3 feet of operational amplifier U4, resistance R21
The other end connect GND, 7 feet of the gate pole G connection operational amplifier U3B of field-effect tube Q2, drain D connection+15V power supply, source
The other end of 3 feet of pole S connection resistance R20 and operational amplifier U3A, resistance R20 connects resistance R19, capacitor C3, resistance
The other end of R19 is connect with the collector c of triode Q3, and the other end of capacitor C3 connects GND, and the emitter e of triode Q3 connects
GND is met, the one end resistance R22 connects 1 foot of R23 and connecting terminal CN2, and the other end is connect with 2 feet of operational amplifier U4,6 feet,
The other end of resistance R23 connect GND with 2 feet of connecting terminal CN2.
The present invention can real-time monitoring discharge time is very short and transient current is very big discharge current, inhibit null offset
With noise jamming, discharge current is accurately measured, cost is lower, can substantially reduce development cost.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Wherein:
1 two-stage amplifying circuit, 2 signal holding circuit
3 amplifying circuit, 4 signal output apparatus
5 No. I reset circuits, 6 No. II reset circuits.
Specific embodiment
Hereinafter, referring to drawings and examples, the present invention is described in detail:
As shown in Figure 1, a kind of current collection circuit for the power supply that magnetizes, including connecting terminal CN1, the connecting terminal CN1
No. 2 pins, be parallel with resistance R1, potentiometer VR1 between No. 3 pins, potentiometer VR1 is connected with two-stage amplifying circuit 1, described
Two-stage amplifying circuit 1 is connected with signal holding circuit 2, and the signal holding circuit 2 is connected with amplifying circuit 3, the amplification electricity
Road 3 is connected with signal output apparatus 4, and the signal output apparatus 4 is connected with connecting terminal CN2, and the 1 of the connecting terminal CN1
No. I reset circuit 5, No. 1 pin and amplification electricity of the connecting terminal CN1 number are provided between pin and signal holding circuit 2
No. II reset circuit 6 is provided between road 3.
The two-stage amplifying circuit 1 includes operational amplifier U1, operational amplifier U2, resistance R2 ~ R10, diode D1, two
Pole pipe D2, capacitor C1, the one end resistance R2 connect potentiometer VR1, the other end and resistance R3, capacitor C1, diode D1 of resistance R2
Cathode, diode D2 anode and operational amplifier U1 the connection of 2 feet, the other end of resistance R3 and resistance R4, resistance R5
Connection, the other end of resistance R4 are connect with 6 feet of the other end of capacitor C1, resistance R7, resistance R8 and operational amplifier U1, electricity
The other end of resistance R8 is connect with 3 feet of operational amplifier U2, the other end connection GND of resistance R5, resistance R7.The one end resistance R6
GND is connected, the other end is connect with 3 feet of the anode of diode D1, the cathode of diode D2 and operational amplifier U1.Resistance
The one end R10 connects 2 feet of resistance R9, operational amplifier U2, and the other end connects GND, the other end and operational amplifier of resistance R9
The 10 feet connection of 6 feet and operational amplifier U3C of U2.
The signal holding circuit 2 includes operational amplifier U3C, operational amplifier U3D, resistance R11 ~ R14, diode D3
~ D5, capacitor C2, No. I reset circuit 5 include triode Q1, resistance R15, R16.
The amplifying circuit 3 includes operational amplifier U3A, operational amplifier U3B, resistance R17, resistance R20, field-effect tube
Q3, the signal output apparatus 4 include operational amplifier U4, resistance R21 ~ R23, potentiometer VR2, No. II reset circuit 6
Including triode Q3, resistance R18, R19,
The one end the resistance R11 connects 13 feet, 14 feet of resistance R12, resistance R17 and operational amplifier U3, the other end
It is connect with 9 feet of the anode of diode D3 and operational amplifier U3C, the cathode of the other end of resistance R12 and diode D4, two
The anode of pole pipe D5 connects, and the other end of resistance R17 is connect with 5 feet of operational amplifier U3B, the cathode of diode D3 and two poles
The 8 feet connection of the anode, operational amplifier U3C of pipe D4, the one end resistance R13 connect the cathode of resistance R14 and diode D5, separately
One end is connect with 12 feet of operational amplifier U3, and the other end of resistance R14 is connect with resistance R15, capacitor C2, and resistance R15's is another
One end is connect with the collector c of triode Q1, and the other end of capacitor C2 connect GND, resistance R16 with the emitter e of triode Q1
One end connects 1 foot of resistance R18 and connecting terminal CN1, and the other end is connect with the base stage b of triode Q1.
The other end of the resistance R18 is connect with the base stage b of triode Q3, and the one end potentiometer VR2 connects operational amplifier
6 feet of 1 foot of U3A, 2 feet and U3B, the other end connect resistance R21, and the other end connects 3 feet of operational amplifier U4, resistance R21
The other end connect GND, 7 feet of the gate pole G connection operational amplifier U3B of field-effect tube Q2, drain D connection+15V power supply, source
The other end of 3 feet of pole S connection resistance R20 and operational amplifier U3A, resistance R20 connects resistance R19, capacitor C3, resistance
The other end of R19 is connect with the collector c of triode Q3, and the other end of capacitor C3 connects GND, and the emitter e of triode Q3 connects
GND is met, the one end resistance R22 connects 1 foot of R23 and connecting terminal CN2, and the other end is connect with 2 feet of operational amplifier U4,6 feet,
The other end of resistance R23 connect GND with 2 feet of connecting terminal CN2.
7 feet of operational amplifier U1,7 feet of U2,4 feet of U3A, U4 7 foot connection+15V power supplys.Operational amplifier U1's
4 feet, 4 feet of U2,11 feet of U3A, U4 4 foot connection -15V power supplys.
The two-stage amplifying circuit 1, the resistance in amplifying circuit 3 and capacitor are the higher resistance of precision and capacitor, with
Guarantee circuit Striking symmetry, inhibit null offset and noise jamming, improves measurement accuracy.
The course of work of the present invention is as follows:
When the power supply that magnetizes carries out filling demagnetization electric discharge, 1 foot of connecting terminal CN1 is low level, and triode Q1, Q3 are cut-off
State, output are high level.At this point, 5, No. II reset circuits 6 of No. I reset circuit do not generate reset signal.Current Mutual Inductance
The discharge current signal input wires terminal CN1 that device detects, is converted into voltage signal by sampling resistor R1, by potentiometer
VR1 carries out signal partial pressure.Signal amplification is carried out by two-stage amplifying circuit 1.Using signal holding circuit 2, above-mentioned letter is maintained
Number level is constant.Above-mentioned signal carries out signal amplification using amplifying circuit 3.Amplified signal is using signal output apparatus
Carry out signal adjustment.Signal adjusted finally pass through connecting terminal CN2 connect display instrument carry out discharge current show.
Power supply magnetize before filling demagnetization electric discharge every time, 1 foot of connecting terminal CN1 is high level, and triode Q1, Q3 are conducting
State generates reset signal by 5, No. II reset circuits 6 of No. I reset circuit, and capacitor C2, C3 are put by triode Q1, Q3
Electricity.No matter why input signal is worth at this time, the signal of connecting terminal CN2 is all low level.
The present invention can real-time monitoring discharge time is very short and transient current is very big discharge current, inhibit null offset
With noise jamming, discharge current is accurately measured, cost is lower, can substantially reduce development cost.
Claims (5)
1. a kind of current collection circuit for the power supply that magnetizes, including connecting terminal CN1, it is characterised in that: the connecting terminal CN1's
Resistance R1, potentiometer VR1 are parallel between No. 2 pins, No. 3 pins, potentiometer VR1 is connected with two-stage amplifying circuit (1), described
Two-stage amplifying circuit (1) is connected with signal holding circuit (2), and the signal holding circuit (2) is connected with amplifying circuit (3), institute
It states amplifying circuit (3) to be connected with signal output apparatus (4), the signal output apparatus (4) is connected with connecting terminal CN2, described
No. I reset circuit (5), the connecting terminal CN1 are provided between No. 1 pin and signal holding circuit (2) of connecting terminal CN1
No. 1 pin and amplifying circuit (3) between be provided with No. II reset circuit (6), the two-stage amplifying circuit (1) includes that operation is put
Big device U1, operational amplifier U2, resistance R2 ~ R10, diode D1, diode D2, capacitor C1, the one end resistance R2 connects potentiometer
The other end of VR1, resistance R2 and resistance R3, capacitor C1, the cathode of diode D1, diode D2 anode and operational amplifier
2 feet of U1 connect, and the other end of resistance R3 is connect with resistance R4, resistance R5, the other end of the other end of resistance R4 and capacitor C1,
The connection of 6 feet of resistance R7, resistance R8 and operational amplifier U1, the other end of resistance R8 are connect with 3 feet of operational amplifier U2,
The other end connection GND of resistance R5, resistance R7, the one end resistance R6 connects GND, anode, the diode of the other end and diode D1
The 3 feet connection of the cathode and operational amplifier U1 of D2, the one end resistance R10 connect 2 feet of resistance R9, operational amplifier U2, separately
One end connects GND, and the other end of resistance R9 is connect with 10 feet of 6 feet of operational amplifier U2 and operational amplifier U3C.
2. the current collection circuit of the power supply according to claim 1 that magnetizes, it is characterised in that: the signal holding circuit
It (2) include operational amplifier U3C, operational amplifier U3D, resistance R11 ~ R14, diode D3 ~ D5, capacitor C2, No. I reset
Circuit (5) includes triode Q1, resistance R15, R16.
3. the current collection circuit of the power supply according to claim 1 that magnetizes, it is characterised in that: amplifying circuit (3) packet
Include operational amplifier U3A, operational amplifier U3B, resistance R17, resistance R20, field-effect tube Q3, the signal output apparatus (4)
Including operational amplifier U4, resistance R21 ~ R23, potentiometer VR4, No. II reset circuit (6) includes triode Q3, resistance
R18、R19。
4. the current collection circuit of the power supply according to claim 2 that magnetizes, it is characterised in that: the one end the resistance R11 connects
The anode of 13 feet of connecting resistance R12, resistance R17 and operational amplifier U3D, 14 feet, the other end and diode D3 and operation
9 feet of amplifier U3C connect, and the other end of resistance R12 is connect with the anode of the cathode of diode D4, diode D5, resistance R17
The other end connect with 5 feet of operational amplifier U3B, anode, the operational amplifier U3C of the cathode of diode D3 and diode D4
The connection of 8 feet, the one end resistance R13 connects the cathode of resistance R14 and diode D5, the 12 of the other end and operational amplifier U3D
Foot connection, the other end of resistance R14 are connect with resistance R15, capacitor C2, the other end of resistance R15 and the collector c of triode Q1
Connection, the other end of capacitor C2 connect GND with the emitter e of triode Q1, and the one end resistance R16 connects resistance R18 and terminals
1 foot of sub- CN1, the other end are connect with the base stage b of triode Q1.
5. the current collection circuit of the power supply according to claim 3 that magnetizes, it is characterised in that: the resistance R18's is another
End is connect with the base stage b of triode Q3,6 feet of the one end potentiometer VR4 connection 1 foot of operational amplifier U3A, 2 feet and U3B, separately
One end connects resistance R21, and the other end connects 3 feet of operational amplifier U4, and the other end of resistance R21 connects GND, field-effect tube Q2
Gate pole G connection resistance R20 one end and operational amplifier U3A 3 feet, drain D connect operational amplifier U3B 7 feet, source electrode
The other end of 3 feet of S connection resistance R20 and operational amplifier U3A, resistance R20 connects resistance R19, capacitor C3, resistance R19
The other end connect with the collector c of triode Q3, the other end of capacitor C3 connects GND, the emitter e connection of triode Q3
GND, the one end resistance R22 connect 1 foot of R23 and connecting terminal CN2, and the other end is connect with 2 feet of operational amplifier U4,6 feet, electricity
The other end of resistance R23 connect GND with 2 feet of connecting terminal CN2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310164.3A CN105807123B (en) | 2016-05-12 | 2016-05-12 | Magnetize the current collection circuit of power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310164.3A CN105807123B (en) | 2016-05-12 | 2016-05-12 | Magnetize the current collection circuit of power supply |
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| Publication Number | Publication Date |
|---|---|
| CN105807123A CN105807123A (en) | 2016-07-27 |
| CN105807123B true CN105807123B (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610310164.3A Active CN105807123B (en) | 2016-05-12 | 2016-05-12 | Magnetize the current collection circuit of power supply |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2585841A1 (en) * | 1985-07-31 | 1987-02-06 | Valeo | Device for measuring a direct current |
| CN201716404U (en) * | 2010-05-27 | 2011-01-19 | 上海杰灵磁性器材有限公司 | Small magnet magnetism tester |
| CN203275492U (en) * | 2013-04-26 | 2013-11-06 | 深圳奥特迅电力设备股份有限公司 | Non-contact minimal direct current detection apparatus |
| CN203287423U (en) * | 2013-05-24 | 2013-11-13 | 麦格雷博电子(深圳)有限公司 | Narrow-pulse magnetic field peak detection structure |
| CN104221237A (en) * | 2012-02-29 | 2014-12-17 | 法雷奥电机控制系统公司 | Detection of a leakage current comprising a continuous component in a vehicle |
| CN205786798U (en) * | 2016-05-12 | 2016-12-07 | 核工业理化工程研究院 | A kind of current collection circuit of the power supply that magnetizes |
-
2016
- 2016-05-12 CN CN201610310164.3A patent/CN105807123B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2585841A1 (en) * | 1985-07-31 | 1987-02-06 | Valeo | Device for measuring a direct current |
| CN201716404U (en) * | 2010-05-27 | 2011-01-19 | 上海杰灵磁性器材有限公司 | Small magnet magnetism tester |
| CN104221237A (en) * | 2012-02-29 | 2014-12-17 | 法雷奥电机控制系统公司 | Detection of a leakage current comprising a continuous component in a vehicle |
| CN203275492U (en) * | 2013-04-26 | 2013-11-06 | 深圳奥特迅电力设备股份有限公司 | Non-contact minimal direct current detection apparatus |
| CN203287423U (en) * | 2013-05-24 | 2013-11-13 | 麦格雷博电子(深圳)有限公司 | Narrow-pulse magnetic field peak detection structure |
| CN205786798U (en) * | 2016-05-12 | 2016-12-07 | 核工业理化工程研究院 | A kind of current collection circuit of the power supply that magnetizes |
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| CN105807123A (en) | 2016-07-27 |
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