CN106843362A - Can high-speed switch constant-current source for cold atom interference-type gravimeter - Google Patents
Can high-speed switch constant-current source for cold atom interference-type gravimeter Download PDFInfo
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- CN106843362A CN106843362A CN201710043698.9A CN201710043698A CN106843362A CN 106843362 A CN106843362 A CN 106843362A CN 201710043698 A CN201710043698 A CN 201710043698A CN 106843362 A CN106843362 A CN 106843362A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/575—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
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- Electromagnetism (AREA)
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- Automation & Control Theory (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
For the high-speed switch constant-current source of cold atom interference-type gravimeter, including TTL control signals input circuit unit 1, photoelectric coupling circuit unit 2, switch mosfet circuit unit 3, power supply signal Dolby circuit unit 4, constant-current circuit unit 5 and the output loading circuit unit 6 being sequentially connected；The present invention has the advantages that circuit structure simple, electric current value stabilization, switch respond that time delay is short and small power consumption；The current source of constant-current source is switched on and off the time and can be controlled in microsecond rank, within the current value deviation control a ten thousandth of constant-current source.
Description
Technical field
The present invention relates to linear power supply technical field, especially for the constant-current source in cold atom interference-type gravimeter.
Technical background
The constant-current source of cold atom interference-type gravimeter is applied to, electric current value stabilization, the fast response time of power supply is typically required
It is small with ripple.Existing constant-current source cost of manufacture is high, current value is less than normal, less stable, it is impossible to carry out sequential by TTL signal
Control.The constant-current source of high-accuracy heavy-current is expensive, and use cost is high.
The content of the invention
The present invention will overcome existing disadvantages mentioned above, there is provided a kind of circuit structure is simple, reliable working performance, be capable of achieving
The constant-current source of TTL signal SECO, in cold atom interference-type gravimeter.
The present invention is realized by following technical scheme.
High-speed switch constant-current source for cold atom interference-type gravimeter of the invention, including the TTL controls being sequentially connected
Signal input circuit unit 1, photoelectric coupling circuit unit 2, switch mosfet circuit unit 3, power supply signal Dolby circuit unit
4th, constant-current circuit unit 5 and output loading circuit unit 6.
In the TTL control signals input circuit unit 1, the TTL signal of signal generator is accessed by letter by bnc interface
Number input, No. 2 pins in high level output end and input terminal are connected, No. 1 pin in low level output end and input terminal
It is connected, No. 1 pin of input terminal is connected with ground.The first end pin of current-limiting resistance R1 and No. 2 pins of TTL signal input
It is connected, second end of current-limiting resistance R1 is connected.
It is made up of photoelectrical coupler U1 and shunt capacitance C1 in described photoelectric coupling circuit unit 2, wherein：Photoelectric coupling
No. 2 pins of device U1 are connected with second end of current-limiting resistance R1, and No. 3 pins of photoelectrical coupler U1 are connected with ground, photoelectric coupling
No. 5 pins of device are connected with ground, and No. 8 pins of photoelectrical coupler are connected with power supply signal.The first end and light of shunt capacitance C1
No. 8 pins of electric coupler are connected, and the second end pin of shunt capacitance is connected with ground.
By current-limiting resistance R2, shunt capacitance C4 and MOSFET triode Q1 structures in described switch mosfet circuit unit 3
Into, wherein：The first end of current-limiting resistance R2 is connected with photoelectrical coupler No. 8 pins, the second end pin of current-limiting resistance R2 and
No. 6 pins of photoelectrical coupler are connected.The first end pin of shunt capacitance C4 is connected with the second end pin of current-limiting resistance R2.It is other
The second end pin of road electric capacity C4 is connected with ground.No. 1 pin and the first end pin of shunt capacitance C4 of MOSFET triodes Q1
It is connected, No. 2 pins of MOSFET triodes Q1 are connected with No. 2 pins of output loading terminals.No. 3 of MOSFET triodes Q1
Pin is connected with ground.
It is made up of small electrochemical capacitor C4 and big electrochemical capacitor C5 in described power supply signal Dolby circuit unit 4, wherein：It is small
The first end pin of electrochemical capacitor C4 is connected with power supply signal, and the second end pin of small electrochemical capacitor C4 is connected with ground；Big electrolysis
The first end pin of electric capacity C5 is connected with power supply signal, and the second end pin of big electrochemical capacitor C5 is connected with ground.
By electric capacity C2, electric capacity C3, diode D1, voltage stabilizing chip U2 and sampling resistor R3 in described constant-current circuit unit 5
Constitute, wherein：The first end pin of electric capacity C2 is connected with No. 1 pin of voltage stabilizing chip U2, the second end pin of electric capacity C2 and steady
No. 2 pins of pressure chip U2 are connected；The first end pin of electric capacity C3 is connected with No. 3 pins of voltage stabilizing chip U2, and the of electric capacity C3
Two ends are connected with the positive pole of diode D1；The negative pole of diode D1 is connected with No. 2 pins of voltage stabilizing chip U2；Sampling resistor R3's
First end pin is connected with No. 3 pins of voltage stabilizing chip U2, the second end pin and the positive pole phase of diode D1 of sampling resistor R3
Even.
Described No. 1 pin of output loading terminals is electric current delivery outlet, and No. 2 pins are electric current input port.
It is an advantage of the invention that：The present invention has circuit structure simple, electric current value stabilization, switch response time delay short and work(
The advantages of consuming small；The current source of constant-current source is switched on and off the time and can be controlled in microsecond rank, the current value deviation control of constant-current source
Within a ten thousandth processed.
Brief description of the drawings
Fig. 1 is construction unit block diagram of the invention；
Fig. 2 is design principle figure of the invention.
Specific embodiment
Technical scheme is further illustrated below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, the present invention for cold atom interference-type gravimeter can high-speed switch constant-current source, including connect successively
TTL control signals input circuit unit 1, photoelectric coupling circuit unit 2, switch mosfet circuit unit 3, the power supply signal drop for connecing
Noise cancellation circuit unit 4, constant-current circuit unit 5 and output loading circuit unit 6.
In the TTL control signals input circuit unit 1, the TTL signal of signal generator is accessed by letter by bnc interface
Number input, No. 2 pins in high level output end and input terminal are connected, No. 1 pin in low level output end and input terminal
It is connected, No. 1 pin of input terminal is connected with ground.The first end pin of current-limiting resistance R1 and No. 2 pins of TTL signal input
It is connected, second end of current-limiting resistance R1 is connected.
It is made up of photoelectrical coupler U1 and shunt capacitance C1 in described photoelectric coupling circuit unit 2, wherein：Photoelectric coupling
No. 2 pins of device U1 are connected with second end of current-limiting resistance R1, and No. 3 pins of photoelectrical coupler U1 are connected with ground, photoelectric coupling
No. 5 pins of device are connected with ground, and No. 8 pins of photoelectrical coupler are connected with power supply signal.The first end and light of shunt capacitance C1
No. 8 pins of electric coupler are connected, and the second end pin of shunt capacitance is connected with ground.
By current-limiting resistance R2, shunt capacitance C4 and MOSFET triode Q1 structures in described switch mosfet circuit unit 3
Into, wherein：The first end of current-limiting resistance R2 is connected with photoelectrical coupler No. 8 pins, the second end pin of current-limiting resistance R2 and
No. 6 pins of photoelectrical coupler are connected.The first end pin of shunt capacitance C4 is connected with the second end pin of current-limiting resistance R2.It is other
The second end pin of road electric capacity C4 is connected with ground.No. 1 pin and the first end pin of shunt capacitance C4 of MOSFET triodes Q1
It is connected, No. 2 pins of MOSFET triodes Q1 are connected with No. 2 pins of output loading terminals.No. 3 of MOSFET triodes Q1
Pin is connected with ground.
It is made up of small electrochemical capacitor C4 and big electrochemical capacitor C5 in described power supply signal Dolby circuit unit 4, wherein：It is small
The first end pin of electrochemical capacitor C4 is connected with power supply signal, and the second end pin of small electrochemical capacitor C4 is connected with ground；Big electrolysis
The first end pin of electric capacity C5 is connected with power supply signal, and the second end pin of big electrochemical capacitor C5 is connected with ground.
By electric capacity C2, electric capacity C3, diode D1, voltage stabilizing chip U2 and sampling resistor R3 in described constant-current circuit unit 5
Constitute, wherein：The first end pin of electric capacity C2 is connected with No. 1 pin of voltage stabilizing chip U2, the second end pin of electric capacity C2 and steady
No. 2 pins of pressure chip U2 are connected；The first end pin of electric capacity C3 is connected with No. 3 pins of voltage stabilizing chip U2, and the of electric capacity C3
Two ends are connected with the positive pole of diode D1；The negative pole of diode D1 is connected with No. 2 pins of voltage stabilizing chip U2；Sampling resistor R3's
First end pin is connected with No. 3 pins of voltage stabilizing chip U2, the second end pin and the positive pole phase of diode D1 of sampling resistor R3
Even.
No. 1 pin is electric current delivery outlet in described output loading circuit unit 6, and No. 2 pins are electric current input port.
TTL control signals input circuit unit 1 is to realize that TTL control signals are accessed, and common interfaces are BNC；
Photoelectric coupling circuit unit 2 is that TTL control signals are converted into photo-electric control signal, mainly by photoelectric coupling
Device is realized；
Switch mosfet circuit unit 3 is to realize a function for high-speed switch, mainly by MOSFET triodes come
Realize；
Power supply signal Dolby circuit unit 4 is the function of realizing power supply signal noise reduction, can reduce the property to power supply signal
Can require, mainly be electrolysed parallel connection by size to realize；
Constant-current circuit unit 5 is realized by voltage stabilizing chip U2 and sampling resistor and corresponding supporting auxiliary circuit；
Output loading circuit unit 6 is the connection for realizing load and constant-current source.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope should not be construed as limited to only the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology
Personnel are according to the thinkable equivalent technologies mean of present inventive concept institute.
Claims (1)
1. the high-speed switch constant-current source of cold atom interference-type gravimeter, including the TTL control signals input electricity being sequentially connected are used for
Road unit (1), photoelectric coupling circuit unit (2), switch mosfet circuit unit (3), power supply signal Dolby circuit unit (4),
Constant-current circuit unit (5) and output loading circuit unit (6)；
In the TTL control signals input circuit unit (1), the TTL signal of signal generator is accessed by signal by bnc interface
Input, No. 2 pins in high level output end and input terminal are connected, No. 1 pin phase in low level output end and input terminal
Even, No. 1 pin of input terminal is connected with ground；The first end pin of current-limiting resistance R1 and No. 2 pin phases of TTL signal input
Even, second end of current-limiting resistance R1 is connected；
It is made up of photoelectrical coupler U1 and shunt capacitance C1 in described photoelectric coupling circuit unit (2), wherein：Photoelectrical coupler
No. 2 pins of U1 are connected with second end of current-limiting resistance R1, and No. 3 pins of photoelectrical coupler U1 are connected with ground, photoelectrical coupler
No. 5 pins with ground be connected, No. 8 pins of photoelectrical coupler are connected with power supply signal；The first end and photoelectricity of shunt capacitance C1
No. 8 pins of coupler are connected, and the second end pin of shunt capacitance is connected with ground；
It is made up of current-limiting resistance R2, shunt capacitance C4 and MOSFET triode Q1 in described switch mosfet circuit unit 3, its
In：The first end of current-limiting resistance R2 is connected with photoelectrical coupler No. 8 pins, the second end pin and light thermocouple of current-limiting resistance R2
No. 6 pins of clutch are connected；The first end pin of shunt capacitance C4 is connected with the second end pin of current-limiting resistance R2；Shunt capacitance
The second end pin of C4 is connected with ground；No. 1 pin of MOSFET triodes Q1 is connected with the first end pin of shunt capacitance C4,
No. 2 pins of MOSFET triodes Q1 are connected with No. 2 pins of output loading terminals；No. 3 pins of MOSFET triodes Q1
It is connected with ground；
It is made up of small electrochemical capacitor C4 and big electrochemical capacitor C5 in described power supply signal Dolby circuit unit (4), wherein：Small electricity
The first end pin of solution electric capacity C4 is connected with power supply signal, and the second end pin of small electrochemical capacitor C4 is connected with ground；Big electrolysis electricity
The first end pin for holding C5 is connected with power supply signal, and the second end pin of big electrochemical capacitor C5 is connected with ground；
By electric capacity C2, electric capacity C3, diode D1, voltage stabilizing chip U2 and sampling resistor R3 structures in described constant-current circuit unit (5)
Into, wherein：The first end pin of electric capacity C2 is connected with No. 1 pin of voltage stabilizing chip U2, the second end pin of electric capacity C2 and voltage stabilizing
No. 2 pins of chip U2 are connected；The first end pin of electric capacity C3 is connected with No. 3 pins of voltage stabilizing chip U2, and the second of electric capacity C3
End is connected with the positive pole of diode D1；The negative pole of diode D1 is connected with No. 2 pins of voltage stabilizing chip U2；The of sampling resistor R3
One end pin is connected with No. 3 pins of voltage stabilizing chip U2, and the second end pin of sampling resistor R3 is connected with the positive pole of diode D1；
Described No. 1 pin of output loading terminals is electric current delivery outlet, and No. 2 pins are electric current input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043698.9A CN106843362B (en) | 2017-01-19 | 2017-01-19 | Can high-speed switch constant-current source for cold atom interference-type gravimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043698.9A CN106843362B (en) | 2017-01-19 | 2017-01-19 | Can high-speed switch constant-current source for cold atom interference-type gravimeter |
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| Publication Number | Publication Date |
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| CN106843362A true CN106843362A (en) | 2017-06-13 |
| CN106843362B CN106843362B (en) | 2018-01-12 |
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| CN201710043698.9A Active CN106843362B (en) | 2017-01-19 | 2017-01-19 | Can high-speed switch constant-current source for cold atom interference-type gravimeter |
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Citations (7)
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|---|---|---|---|---|
| CN201504113U (en) * | 2009-09-30 | 2010-06-09 | 东莞市盈聚电子有限公司 | Constant voltage and current charging circuit provided with converting light |
| CN201846118U (en) * | 2010-06-29 | 2011-05-25 | 沈阳和信恒实业有限公司 | Intelligent multi-section constant current charger |
| US9240726B1 (en) * | 2013-05-16 | 2016-01-19 | Universal Lighting Technologies, Inc. | Dimming LED driver circuit with dynamically controlled resonant tank gain |
| US9342030B1 (en) * | 2014-10-23 | 2016-05-17 | Canon Kabushiki Kaisha | Power supply apparatus for superimposing direct current voltage on alternating current voltage and outputting resulting voltage |
| CN205507033U (en) * | 2016-02-02 | 2016-08-24 | 保定华创电气有限公司 | Transformer on -load tap -changer alternating current -direct current parameter testing appearance |
| CN106020312A (en) * | 2016-07-20 | 2016-10-12 | 浙江工业大学 | Constant current source for earth magnetic field compensation in cold atom interference type gravity meter |
| CN206479871U (en) * | 2017-01-19 | 2017-09-08 | 浙江工业大学 | Can high-speed switch constant-current source for cold atom interference-type gravimeter |
-
2017
- 2017-01-19 CN CN201710043698.9A patent/CN106843362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201504113U (en) * | 2009-09-30 | 2010-06-09 | 东莞市盈聚电子有限公司 | Constant voltage and current charging circuit provided with converting light |
| CN201846118U (en) * | 2010-06-29 | 2011-05-25 | 沈阳和信恒实业有限公司 | Intelligent multi-section constant current charger |
| US9240726B1 (en) * | 2013-05-16 | 2016-01-19 | Universal Lighting Technologies, Inc. | Dimming LED driver circuit with dynamically controlled resonant tank gain |
| US9342030B1 (en) * | 2014-10-23 | 2016-05-17 | Canon Kabushiki Kaisha | Power supply apparatus for superimposing direct current voltage on alternating current voltage and outputting resulting voltage |
| CN205507033U (en) * | 2016-02-02 | 2016-08-24 | 保定华创电气有限公司 | Transformer on -load tap -changer alternating current -direct current parameter testing appearance |
| CN106020312A (en) * | 2016-07-20 | 2016-10-12 | 浙江工业大学 | Constant current source for earth magnetic field compensation in cold atom interference type gravity meter |
| CN206479871U (en) * | 2017-01-19 | 2017-09-08 | 浙江工业大学 | Can high-speed switch constant-current source for cold atom interference-type gravimeter |
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| Publication number | Publication date |
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| CN106843362B (en) | 2018-01-12 |
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