CN205124035U - Intelligence constant current power supply controller - Google Patents
Intelligence constant current power supply controller Download PDFInfo
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- CN205124035U CN205124035U CN201521006402.9U CN201521006402U CN205124035U CN 205124035 U CN205124035 U CN 205124035U CN 201521006402 U CN201521006402 U CN 201521006402U CN 205124035 U CN205124035 U CN 205124035U
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Abstract
The utility model discloses an intelligence constant current power supply controller, put U1, resistance R1, electric capacity C1, field effect transistor VT1, diode D1 and triode VT4 including fortune, resistance R1 one end connect respectively VCC, electric capacity C1, resistance R4 and resistance R5, the resistance R1 other end connect the electric capacity C1 other end, fortune respectively to be put U2 homophase end, resistance R3, field effect transistor VT1's the D utmost point and fortune and puts U3 homophase end, and field effect transistor VT1's the S utmost point is connected ground resistance R2 and fortune respectively and is put U1 inverting terminal, and fortune is put the U1 homophase and is held connection input voltage vi, the D utmost point and the resistance R4 other end that U2 inverting terminal connects field effect transistor VT2 are respectively put to fortune, and field effect transistor VT2's G extremely connects fortune puts the U2 output. The utility model discloses intelligence constant current power supply controller adopts that fortune is put, field effect transistor and triode be as the core parts of control, and circuit structure is simple, and is with low costs, small, and the constant current control is effectual.
Description
Technical field
The utility model relates to a kind of power-supply controller of electric, specifically a kind of Intelligent constant flow power-supply controller of electric.
Background technology
A lot of electric component needs constant-current supply to drive, and LED is model wherein, in energy crisis and climate warming problem more and more serious today, has energy-conservationly become social focus subject under discussion with environmental protection.LED gets more and more people's extensive concerning because of plurality of advantages such as it is efficient, energy-saving and environmental protection, life-span length, rich color, little, the resistance to flicker of volume, reliability are high, regulation and control are convenient, is considered to 21 century the most promising lighting source.Big current is needed during highlighted LED work, when driving highlighted LED from a voltage source, can with the electric current needed for a suitable series resistance setting, if voltage source is battery, then along with the consumption of battery electric power, the brightness of LED is also successively decreased, but, the shortcoming of series resistance is the increase in the power consumption of circuit, and can not control constant current output.
Utility model content
The purpose of this utility model is to provide a kind of Intelligent constant flow power-supply controller of electric, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of Intelligent constant flow power-supply controller of electric, comprise amplifier U1, resistance R1, electric capacity C1, field effect transistor VT1, diode D1 and triode VT4, described resistance R1 one end connects power supply VCC respectively, electric capacity C1, resistance R4 and resistance R5, the resistance R1 other end connects the electric capacity C1 other end respectively, amplifier U2 in-phase end, resistance R3, the D pole of field effect transistor VT1 and amplifier U3 in-phase end, the S pole of field effect transistor VT1 connects earth resistance R2 and amplifier U1 end of oppisite phase respectively, amplifier U1 in-phase end connects input voltage Vi, described amplifier U2 end of oppisite phase connects D pole and the resistance R4 other end of field effect transistor VT2 respectively, the G pole of field effect transistor VT2 connects amplifier U2 output, S pole connecting triode VT4 emitter and the triode VT5 base stage respectively of field effect transistor VT2, triode VT4 collector electrode connects ground connection load RL, triode VT4 base stage contact resistance R6, the resistance R6 other end connects ground connection diode D1 negative pole respectively, ground capacity C2 and the resistance R3 other end, triode VT5 emitter connects the S pole of field effect transistor VT3, the D pole contact resistance R5 other end and the amplifier U3 end of oppisite phase respectively of field effect transistor VT3, amplifier U3 output connects the G pole of field effect transistor VT3, amplifier U3 power end connects power supply VCC.
As the utility model further scheme: described amplifier U1, amplifier U2 and amplifier U3 all adopt LM324.
Compared with prior art, the beneficial effects of the utility model are: the utility model Intelligent constant flow power-supply controller of electric adopts amplifier, field effect transistor and triode as the core parts controlled, and circuit structure is simple, and cost is low, and volume is little, and current constant control is effective.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of Intelligent constant flow power-supply controller of electric.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of Intelligent constant flow power-supply controller of electric, comprise amplifier U1, resistance R1, electric capacity C1, field effect transistor VT1, diode D1 and triode VT4, described resistance R1 one end connects power supply VCC respectively, electric capacity C1, resistance R4 and resistance R5, the resistance R1 other end connects the electric capacity C1 other end respectively, amplifier U2 in-phase end, resistance R3, the D pole of field effect transistor VT1 and amplifier U3 in-phase end, the S pole of field effect transistor VT1 connects earth resistance R2 and amplifier U1 end of oppisite phase respectively, amplifier U1 in-phase end connects input voltage Vi, described amplifier U2 end of oppisite phase connects D pole and the resistance R4 other end of field effect transistor VT2 respectively, the G pole of field effect transistor VT2 connects amplifier U2 output, S pole connecting triode VT4 emitter and the triode VT5 base stage respectively of field effect transistor VT2, triode VT4 collector electrode connects ground connection load RL, triode VT4 base stage contact resistance R6, the resistance R6 other end connects ground connection diode D1 negative pole respectively, ground capacity C2 and the resistance R3 other end, triode VT5 emitter connects the S pole of field effect transistor VT3, the D pole contact resistance R5 other end and the amplifier U3 end of oppisite phase respectively of field effect transistor VT3, amplifier U3 output connects the G pole of field effect transistor VT3, amplifier U3 power end connects power supply VCC, described amplifier U1, amplifier U2 and amplifier U3 all adopt LM324.
Operation principle of the present utility model is: refer to Fig. 1, the grounded circuit that VT5 forms has been set up between the constant-current circuit and load RL of amplifier U2 and U3 composition, like this, when load RL changes, electric current can be stablized by quick-recovery soon, U1 and VT1 forms voltage/current conversion circuit, low level signal can be converted to the level required for rear class constant-current circuit, U2, VT2, VT3 etc. form the constant-current circuit of standard, the base stage of VT5 provides stable voltage by voltage stabilizing didoe VS1, therefore, the emitter voltage of VT4 is not by the impact that load RL changes.In addition, because the emitter input impedance of common-base circuit is low, the impact that the constant-current source that therefore U2 and VT2 is formed is not changed by load RL, is in desirable operating state.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. an Intelligent constant flow power-supply controller of electric, comprise amplifier U1, resistance R1, electric capacity C1, field effect transistor VT1, diode D1 and triode VT4, it is characterized in that, described resistance R1 one end connects power supply VCC respectively, electric capacity C1, resistance R4 and resistance R5, the resistance R1 other end connects the electric capacity C1 other end respectively, amplifier U2 in-phase end, resistance R3, the D pole of field effect transistor VT1 and amplifier U3 in-phase end, the S pole of field effect transistor VT1 connects earth resistance R2 and amplifier U1 end of oppisite phase respectively, amplifier U1 in-phase end connects input voltage Vi, described amplifier U2 end of oppisite phase connects D pole and the resistance R4 other end of field effect transistor VT2 respectively, the G pole of field effect transistor VT2 connects amplifier U2 output, S pole connecting triode VT4 emitter and the triode VT5 base stage respectively of field effect transistor VT2, triode VT4 collector electrode connects ground connection load RL, triode VT4 base stage contact resistance R6, the resistance R6 other end connects ground connection diode D1 negative pole respectively, ground capacity C2 and the resistance R3 other end, triode VT5 emitter connects the S pole of field effect transistor VT3, the D pole contact resistance R5 other end and the amplifier U3 end of oppisite phase respectively of field effect transistor VT3, amplifier U3 output connects the G pole of field effect transistor VT3, amplifier U3 power end connects power supply VCC.
2. Intelligent constant flow power-supply controller of electric according to claim 1, is characterized in that, described amplifier U1, amplifier U2 and amplifier U3 all adopt LM324.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521006402.9U CN205124035U (en) | 2015-12-08 | 2015-12-08 | Intelligence constant current power supply controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521006402.9U CN205124035U (en) | 2015-12-08 | 2015-12-08 | Intelligence constant current power supply controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205124035U true CN205124035U (en) | 2016-03-30 |
Family
ID=55579601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521006402.9U Expired - Fee Related CN205124035U (en) | 2015-12-08 | 2015-12-08 | Intelligence constant current power supply controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205124035U (en) |
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2015
- 2015-12-08 CN CN201521006402.9U patent/CN205124035U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |