CN210348296U - Circuit control structure of multi-path constant current source - Google Patents
Circuit control structure of multi-path constant current source Download PDFInfo
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- CN210348296U CN210348296U CN201921655977.1U CN201921655977U CN210348296U CN 210348296 U CN210348296 U CN 210348296U CN 201921655977 U CN201921655977 U CN 201921655977U CN 210348296 U CN210348296 U CN 210348296U
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Abstract
The utility model discloses a circuit control structure of multichannel constant current source, including reference circuit L0, reference circuit on have output circuit L1, output circuit L2 and output circuit L3 in parallel respectively, reference circuit L0 include resistance R0, triode Q1, definite value resistance Re0 and voltmeter V0, reference circuit L1 include resistance R1, triode Q2, adjustable resistance Re1 and ampere meter A1, reference circuit L2 include resistance R2, triode Q3, adjustable resistance Re2 and ampere meter A2, reference circuit L3 include resistance R3, triode Q4, adjustable resistance Re3 and ampere meter A3. The utility model overcomes the poor problem of traditional multichannel constant current source circuit's that exists among the prior art output current nature. The utility model has the advantages of simple structure, can adjust output current's size and application scope according to customer self wish are wider.
Description
Technical Field
The utility model relates to a circuit control field, more specifically say, relate to a circuit control structure of multichannel constant current source.
Background
Constant current drive is a conventional power supply design technology, is widely applied to various electronic appliances and industrial control, and based on different electric equipment and use conditions, the implementation method of the constant current drive is different, and the direct current constant current drive is the most common one, but most constant current sources have poor circuit performance, the current size is not easy to dynamically change according to the user requirements, and the tightness of the constant current is not very high, although the precision can be improved by selecting high-precision components, the cost is higher, the practicability is poor, and in addition, when multiple independent constant current drives are needed in a system and unified control is needed, the current constant current drive equipment is difficult to implement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the poor problem of traditional multichannel constant current source circuit's that exists among the prior art output current nature, but now provide a circuit control structure of multichannel constant current source of simple structure and festival output current size.
The utility model discloses a circuit control structure of multichannel constant current source, including reference circuit L0, reference circuit on the parallel connection have output circuit L1, output circuit L2 and output circuit L3 respectively, reference circuit L0 include resistance R0, triode Q1, definite value resistance Re0 and voltmeter V0, reference circuit L1 include resistance R1, triode Q2, adjustable resistance Re1 and ampere meter A1, reference circuit L2 include resistance R2, triode Q3, adjustable resistance Re2 and ampere meter A2, reference circuit L3 include resistance R3, triode Q4, adjustable resistance Re3 and ampere meter A3.
Preferably, one end of the resistor R0 is connected to an input voltage U0, the other end of the resistor R0 is electrically connected to pin 1 of the transistor Q1, pin 1 of the transistor Q2, pin 1 of the transistor Q3 and pin 1 of the transistor Q4, pin 2 of the transistor Q1, pin 2 of the transistor Q2, pin 2 of the transistor Q3 and pin 2 of the transistor Q4 are electrically connected to pin 1 of the transistor Q1, pin 3 of the transistor Q1 is electrically connected to one end of the fixed resistor Re0, the other end of the fixed resistor Re0 is grounded, and two ends of the fixed resistor Re0 are connected in parallel to a voltmeter V0.
Preferably, one end of the resistor R1 is a current output terminal I1, the other end of the resistor R1 is electrically connected to a pin 1 of the transistor Q2, a pin 3 of the transistor Q2 is electrically connected to one end of the adjustable resistor Re1 and one end of the ammeter a1, and the other end of the adjustable resistor Re1 and the other end of the ammeter a1 are both grounded.
Preferably, one end of the resistor R2 is a current output terminal I2, the other end of the resistor R2 is electrically connected to a pin 1 of the transistor Q3, a pin 3 of the transistor Q3 is electrically connected to one end of the adjustable resistor Re2 and one end of the ammeter a2, and the other end of the adjustable resistor Re2 and the other end of the ammeter a2 are both grounded.
Preferably, one end of the resistor R3 is a current output terminal I3, the other end of the resistor R3 is electrically connected to a pin 1 of the transistor Q4, a pin 3 of the transistor Q4 is electrically connected to one end of the adjustable resistor Re3 and one end of the ammeter A3, and the other end of the adjustable resistor Re3 and the other end of the ammeter A3 are both grounded.
The during operation, because the utility model discloses a triode Q1, triode Q2, triode Q3 and triode Q4 specification parameter homogeneous phase, consequently can regard as voltmeter V0 the value of surveying as can: v0= Re1 a1= Re2 a2= Re3 A3, so the user can obtain the required magnitude of the output current by adjusting the resistance values of the variable resistor Re1, the variable resistor Re2, and the variable resistor Re3, respectively.
The utility model discloses following beneficial effect has: simple structure, can adjust the size of output current according to customer self wish, application scope is wider.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the present invention is further explained with reference to fig. 1, in this example, the circuit control structure of the multi-path constant current source includes a reference circuit L0, the reference circuit is respectively connected in parallel with an output circuit L1, an output circuit L2 and an output circuit L3, the reference circuit L0 includes a resistor R0, a transistor Q1, a fixed resistor Re0 and a voltmeter V0, the reference circuit L1 includes a resistor R1, a transistor Q2, an adjustable resistor Re1 and an ammeter a1, the reference circuit L2 includes a resistor R2, a transistor Q3, an adjustable resistor Re2 and an ammeter a2, and the reference circuit L3 includes a resistor R3, a transistor Q4, an adjustable resistor Re3 and an ammeter A3.
One end of the resistor R0 is connected with an input voltage U0, the other end of the resistor R0 is electrically connected with a pin 1 of the triode Q1, a pin 1 of the triode Q2, a pin 1 of the triode Q3 and a pin 1 of the triode Q4 respectively, a pin 2 of the triode Q1, a pin 2 of the triode Q2, a pin 2 of the triode Q3 and a pin 2 of the triode Q4 are electrically connected with a pin 1 of the triode Q1 respectively, a pin 3 of the triode Q1 is electrically connected with one end of a fixed value resistor Re0, the other end of the fixed value resistor Re0 is grounded, and two ends of the fixed value resistor Re0 are connected with a voltmeter V0 in parallel.
One end of the resistor R1 is a current output end I1, the other end of the resistor R1 is electrically connected with a pin 1 of the triode Q2, a pin 3 of the triode Q2 is electrically connected with one end of the adjustable resistor Re1 and one end of the ammeter A1 respectively, and the other end of the adjustable resistor Re1 and the other end of the ammeter A1 are both grounded.
One end of the resistor R2 is a current output end I2, the other end of the resistor R2 is electrically connected with a pin 1 of the triode Q3, a pin 3 of the triode Q3 is electrically connected with one end of the adjustable resistor Re2 and one end of the ammeter A2 respectively, and the other end of the adjustable resistor Re2 and the other end of the ammeter A2 are both grounded.
One end of the resistor R3 is a current output end I3, the other end of the resistor R3 is electrically connected with a pin 1 of the triode Q4, a pin 3 of the triode Q4 is electrically connected with one end of the adjustable resistor Re3 and one end of the ammeter A3 respectively, and the other end of the adjustable resistor Re3 and the other end of the ammeter A3 are both grounded.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (5)
1. A circuit control structure of a multipath constant current source comprises a reference circuit L0 and is characterized in that the reference circuit is respectively connected with an output circuit L1, an output circuit L2 and an output circuit L3 in parallel, the reference circuit L0 comprises a resistor R0, a triode Q1, a fixed-value resistor Re0 and a voltmeter V0, the reference circuit L1 comprises a resistor R1, a triode Q2, an adjustable resistor Re1 and an ammeter A1, the reference circuit L2 comprises a resistor R2, a triode Q3, an adjustable resistor Re2 and an ammeter A2, and the reference circuit L3 comprises a resistor R3, a triode Q4, an adjustable resistor Re3 and an ammeter A3.
2. The circuit control structure of a multi-path constant current source as claimed in claim 1, wherein one end of the resistor R0 is connected to an input voltage U0, the other end of the resistor R0 is electrically connected to pin 1 of the transistor Q1, pin 1 of the transistor Q2, pin 1 of the transistor Q3 and pin 1 of the transistor Q4, pin 2 of the transistor Q1, pin 2 of the transistor Q2, pin 2 of the transistor Q3 and pin 2 of the transistor Q4 are electrically connected to pin 1 of the transistor Q1, pin 3 of the transistor Q1 is electrically connected to one end of a fixed resistor Re0, the other end of the fixed resistor Re0 is grounded, and two ends of the fixed resistor Re0 are connected in parallel to a voltmeter V0.
3. The circuit control structure of a multi-path constant current source as claimed in claim 1, wherein one end of the resistor R1 is a current output terminal I1, the other end of the resistor R1 is electrically connected to a pin 1 of a transistor Q2, a pin 3 of the transistor Q2 is electrically connected to one end of an adjustable resistor Re1 and one end of an ammeter a1, and the other end of the adjustable resistor Re1 and the other end of the ammeter a1 are both grounded.
4. The circuit control structure of a multi-path constant current source as claimed in claim 1, wherein one end of the resistor R2 is a current output terminal I2, the other end of the resistor R2 is electrically connected to a pin 1 of a transistor Q3, a pin 3 of the transistor Q3 is electrically connected to one end of an adjustable resistor Re2 and one end of an ammeter a2, and the other end of the adjustable resistor Re2 and the other end of the ammeter a2 are both grounded.
5. The circuit control structure of a multi-path constant current source as claimed in claim 1, wherein one end of the resistor R3 is a current output terminal I3, the other end of the resistor R3 is electrically connected to a pin 1 of a transistor Q4, a pin 3 of the transistor Q4 is electrically connected to one end of an adjustable resistor Re3 and one end of an ammeter A3, and the other end of the adjustable resistor Re3 and the other end of the ammeter A3 are both grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655977.1U CN210348296U (en) | 2019-09-30 | 2019-09-30 | Circuit control structure of multi-path constant current source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655977.1U CN210348296U (en) | 2019-09-30 | 2019-09-30 | Circuit control structure of multi-path constant current source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210348296U true CN210348296U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921655977.1U Active CN210348296U (en) | 2019-09-30 | 2019-09-30 | Circuit control structure of multi-path constant current source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210348296U (en) |
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2019
- 2019-09-30 CN CN201921655977.1U patent/CN210348296U/en active Active
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.16, No.2, Yongtai Road, Renhe street, Yuhang District, Hangzhou City, Zhejiang Province, 310000 Patentee after: HANGZHOU GAOYU ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 311121 Gaoyu electronics, 3rd floor, 7b, No.6 Longquan Road, Cangqian Industrial Park, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU GAOYU ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311107 No.16, No.2 Yongtai Road, Renhe Street, Yuhang District, Hangzhou, Zhejiang Patentee after: Hangzhou Gaoyu Electronic Technology Co.,Ltd. Address before: No. 16, No. 2, Yongtai Road, Renhe Street, Yuhang District, Hangzhou City, Zhejiang Province 310000 Patentee before: HANGZHOU GAOYU ELECTRONIC TECHNOLOGY CO.,LTD. |