CN103207635B - Potentiometer interface circuit for light-emitting device - Google Patents
Potentiometer interface circuit for light-emitting device Download PDFInfo
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- CN103207635B CN103207635B CN201210559950.9A CN201210559950A CN103207635B CN 103207635 B CN103207635 B CN 103207635B CN 201210559950 A CN201210559950 A CN 201210559950A CN 103207635 B CN103207635 B CN 103207635B
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Abstract
The invention relates to circuit technology, in particular to a potentiometer interface circuit for a light-emitting device. The potentiometer interface circuit comprises an output control circuit and a sampling adjustment circuit, the output control circuit comprises a potentiometer interface unit and a signal adjustment unit, the sampling adjustment circuit is provided with a reference voltage unit, a signal input end of the reference voltage unit is connected with a signal output end of the signal adjustment unit, a reference voltage output end of the reference voltage unit is connected with a signal input end of the potentiometer interface unit, and reference voltage is generated according to the requirements of electric signals outputted by the signal adjustment unit. The sampling adjustment circuit is capable of sampling the output signals of the signal adjustment unit, sampling information is used for further dimming, the output signals of the signal adjustment unit can be adjusted to be within a set range by the sampling adjustment circuit, and system stability and adjustment accuracy are improved.
Description
Technical field
The present invention relates to circuit engineering, be specifically related to potentiometer interface circuit technology.
Background technology
Very important to light-emitting device light modulation, on the one hand, can controlled atmospher by light modulation, create a more comfortable environment, on the other hand, unnecessary light can be reduced by light modulation, realize energy-saving and emission-reduction further.Therefore a lot of occasion can relate to the light modulation of light-emitting device.
Summary of the invention
The object of the invention is to, a kind of potentiometer interface circuit of light-emitting device is provided, to carry out light modulation to light-emitting device.
Technical matters solved by the invention can realize by the following technical solutions:
A kind of potentiometer interface circuit of light-emitting device, comprise an output control circuit, described output control circuit comprises a potentiometer interface unit, a signal adjustment unit, described potentiometer interface unit is provided with the potentiometer interface for connecting potentiometer, described signal adjustment unit receives the output signal of described potentiometer interface unit, and analyzing and processing is carried out to described output signal, electric signal after analyzing and processing exports to one for connecting the connecting circuit of light-emitting device by the signal output part of described signal adjustment unit
It is characterized in that, also comprise a sampling Circuit tuning, described sampling Circuit tuning is provided with a reference voltage unit, the signal input part of described reference voltage unit connects the signal output part of described signal adjustment unit, the reference voltage output terminal of described reference voltage unit connects the signal input part of described potentiometer interface unit, and the requirement of the electric signal that described reference voltage unit exports according to signal adjustment unit produces reference voltage.
When light-emitting device is connected to after in connecting circuit, the present invention is regulated and controled by the electric signal of output control circuit to connecting circuit, realizes the light modulation of light-emitting device.And the present invention is also provided with sampling Circuit tuning, sampling Circuit tuning can be sampled to the output signal of signal adjustment unit, and using the information of sample information as further light modulation, by described sampling Circuit tuning, the output signal of signal adjustment unit can be adjusted in set scope.Improve the stability of system and the accuracy of adjustment.
The output signal of described potentiometer interface unit, described signal adjustment unit can be the electrical signal form such as voltage, electric current, PWM, frequency.Described connecting circuit can be a constant current output circuit, and the output signal of described signal adjustment unit is for controlling the electric current of constant current output circuit.Described signal adjustment unit comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc. to the process that described output signal is carried out.
Also comprise a sampling feedback circuit, described sampling feedback circuit comprises a regulation unit, the sampled signal input end of described regulation unit connects the signal output part of described signal adjustment unit, described regulation unit carries out analyzing and processing to the electric signal that signal adjustment unit exports, to obtain the electrical signal information of input potentiometer.For the regulation and control of breakdown judge and potentiometer provide foundation.
The control signal output terminal of described regulation unit connects the control signal input end of described signal adjustment unit.Such regulation unit just can control signal adjustment unit, the directly output signal of adjustment signal adjustment unit.
Described regulation unit can be provided with a static database, and described regulation unit can according to the potentiometer signal of the data processing input in static database, the signal of even regulating and controlling control module output.
Described regulation unit can also be provided with a dynamic data base, described regulation unit input signal to external world carries out record, and stored in described dynamic data base, described dynamic data base is in use expanded, form the dynamic data base that has Self-learning Model; The potentiometer signal that described regulation unit inputs according to the data processing in described dynamic data base, the signal of even regulating and controlling control module output.
A kind of potentiometer interface circuit of light-emitting device, also comprise one for providing the power module of electric energy, described power module is provided with output port of power source, and described output port of power source connects the power input port of described reference voltage unit, potentiometer interface unit, signal adjustment unit, regulation unit respectively.
Two signal output parts of described reference voltage unit connect two signal input parts of described potentiometer interface unit respectively by a divider resistance.2 divider resistances can resistance value not be 0; Or a divider resistance resistance value is 0, another divider resistance resistance value is not 0; Or the resistance value of two divider resistances is all 0.Described divider resistance can also replace with the electronic component of the other types such as diode or circuit, but circuit structure does not change.One of them reference voltage output terminal of described reference voltage unit must export negative terminal with the power supply of power module or power supply output plus terminal is connected.
A regulation unit allows to connect a plurality of output control circuit and sampling Circuit tuning.Described regulation unit can be the intelligent cells such as MCU, also can be the interface circuit that DLC (digital logic circuit), on-off circuit, analog regulation etc. can adjust duty.
Accompanying drawing explanation
Fig. 1 is a kind of circuit diagram of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
A potentiometer interface circuit for light-emitting device, mainly comprises output control circuit, sampling Circuit tuning, sampling feedback circuit, connecting circuit, power module.
In Fig. 1,
1. power module 10: for providing direct supply to reference voltage unit, voltage-adjusting unit, signal adjustment unit, regulation unit;
2. reference voltage unit 11: according to the requirement generation reference voltage of the electric signal that signal adjustment unit exports.Here electric signal can be the electrical signal form such as voltage, PWM, frequency.
3. potentiometer interface unit 12: have the interface connecting potentiometer, AH with AL is connected with one end of divider resistance 13 and divider resistance 14 respectively, exports electric signal to signal adjustment unit by AW.Here electric signal can be the electrical signal form such as voltage, electric current, PWM, frequency.
4. divider resistance 13: for forming bleeder circuit with AH, AW, AL and divider resistance 14 of potentiometer interface unit 12, the input signal of this bleeder circuit is the output signal of reference voltage unit 11.Divider resistance 13 one end is connected with the ORV+ of reference voltage unit 11, and the other end is connected with the AH of voltage-adjusting unit.
5. divider resistance 14: for forming bleeder circuit with AH, AW, AL and divider resistance 13 of voltage-adjusting unit, the input signal of this bleeder circuit is the output signal of reference voltage unit 11.Divider resistance 14 one end is connected with the ORV-of reference voltage unit 11, and the other end is connected with the AL of voltage-adjusting unit.
6. signal adjustment unit 15: for receiving the electric signal that potentiometer interface unit 12 exports, and certain electricity process being carried out to this electric signal, to eliminate interference, signal shaping etc., then the electric signal after process being outputted to constant current output circuit.Here electric signal can be the electrical signal form such as voltage, electric current, PWM, frequency.
7. regulation unit 16: the electric signal exported for Received signal strength adjustment unit 15, and certain electricity process is carried out to this electric signal, or analog/digital signal conversion and software process are carried out to this electric signal, to obtain electric signal accurately or the numerical value of input potentiometer signal, certain signal that can also export according to this electric signal or numerical value is to other functional circuits.
Output control circuit comprises potentiometer interface unit 12, signal adjustment unit 15, potentiometer interface unit 12 is provided with the potentiometer interface for connecting potentiometer, signal adjustment unit 15 receives the output signal of potentiometer interface unit 12, and analyzing and processing is carried out to output signal, electric signal after analyzing and processing exports to one for connecting the connecting circuit of light-emitting device by the signal output part of signal adjustment unit 15, and the output signal of potentiometer interface unit 12, signal adjustment unit 15 can be the electrical signal form such as voltage, electric current, PWM, frequency.
Sampling Circuit tuning is provided with a reference voltage unit 11, the signal output part of the signal input part connection signal adjustment unit 15 of reference voltage unit 11, the reference voltage output terminal of reference voltage unit 11 connects the signal input part of potentiometer interface unit 12, and the requirement of the electric signal that reference voltage unit 11 exports according to signal adjustment unit 15 produces reference voltage.
Two signal output parts of reference voltage unit 11 connect two signal input parts of potentiometer interface unit 12 respectively by a divider resistance.2 divider resistances can resistance value not be 0; Or a divider resistance resistance value is 0, another divider resistance resistance value is not 0; Or the resistance value of two divider resistances is all 0.Divider resistance can also replace with the electronic component of the other types such as diode or circuit, but circuit structure does not change.One of them reference voltage output terminal of reference voltage unit 11 must export negative terminal with the power supply of power module 10 or power supply output plus terminal is connected.
Sampling feedback circuit comprises a regulation unit 16, the signal output part of the sampled signal input end connection signal adjustment unit 15 of regulation unit 16, the electric signal that regulation unit 16 pairs of signal adjustment units 15 export carries out analyzing and processing, to obtain the electrical signal information of input potentiometer.For the regulation and control of breakdown judge and potentiometer provide foundation.The control signal input end of the control signal output terminal connection signal adjustment unit 15 of regulation unit 16.Such regulation unit 16 just can control signal adjustment unit 15, the directly output signal of adjustment signal adjustment unit 15.
Regulation unit 16 can be provided with a static database, and regulation unit 16 can according to the potentiometer signal of the data processing input in static database, the signal of even regulating and controlling control module 16 output.Regulation unit 16 can also be provided with a dynamic data base, regulation unit 16 input signal to external world carries out record, and stored in dynamic data base, dynamic data base is in use expanded, form the dynamic data base that has Self-learning Model; The potentiometer signal that regulation unit 16 inputs according to the data processing in dynamic data base, the signal of even regulating and controlling control module 16 output.
Connecting circuit can be a constant current output circuit, and the output signal of signal adjustment unit 15 is for controlling the electric current of constant current output circuit.Signal adjustment unit 15 comprises short circuit output, various forms of filtering, signal limiter, signal conversion etc. to outputing signal the process carried out.
Power module 10 is provided with output port of power source, and output port of power source connects the power input port of reference voltage unit 11, potentiometer interface unit 12, signal adjustment unit 15, regulation unit 16 respectively.
A regulation unit 16 allows to connect a plurality of output control circuit and sampling Circuit tuning.Regulation unit 16 can be the intelligent cells such as MCU, also can be the interface circuit that DLC (digital logic circuit), on-off circuit, analog regulation etc. can adjust duty.In Fig. 1, regulation unit 16 is only connected to an output control circuit and sampling Circuit tuning.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. the potentiometer interface circuit of a light-emitting device, comprise an output control circuit, described output control circuit comprises a potentiometer interface unit, a signal adjustment unit, described potentiometer interface unit is provided with the potentiometer interface for connecting potentiometer, described signal adjustment unit receives the output signal of described potentiometer interface unit, and analyzing and processing is carried out to described output signal, electric signal after analyzing and processing exports to one for connecting the connecting circuit of light-emitting device by the signal output part of described signal adjustment unit
It is characterized in that, also comprise a sampling Circuit tuning, described sampling Circuit tuning is provided with a reference voltage unit, the signal input part of described reference voltage unit connects the signal output part of described signal adjustment unit, the reference voltage output terminal of described reference voltage unit connects the signal input part of described potentiometer interface unit, and the requirement of the electric signal that described reference voltage unit exports according to signal adjustment unit produces reference voltage;
When light-emitting device is connected to after in connecting circuit, regulated and controled by the electric signal of output control circuit to connecting circuit, realize the light modulation of light-emitting device, the output signal of sampling Circuit tuning to signal adjustment unit is sampled, and using the information of sample information as further light modulation, by described sampling Circuit tuning, the output signal of adjustment signal adjustment unit is in set scope;
Also comprise a sampling feedback circuit, described sampling feedback circuit comprises a regulation unit, the sampled signal input end of described regulation unit connects the signal output part of described signal adjustment unit, described regulation unit carries out analyzing and processing to the electric signal that signal adjustment unit exports, to obtain the electrical signal information of input potentiometer;
The control signal output terminal of described regulation unit connects the control signal input end of described signal adjustment unit.
2. the potentiometer interface circuit of a kind of light-emitting device according to claim 1, is characterized in that: the output signal of described potentiometer interface unit, described signal adjustment unit is voltage, electric current or PWM.
3. the potentiometer interface circuit of a kind of light-emitting device according to claim 1, is characterized in that: described regulation unit is provided with a static database, and described regulation unit is according to the potentiometer signal of the data processing input in static database.
4. the potentiometer interface circuit of a kind of light-emitting device according to claim 1, it is characterized in that: described regulation unit is provided with a dynamic data base, described regulation unit input signal to external world carries out record, and stored in described dynamic data base, described dynamic data base is in use expanded, and forms the dynamic data base that has Self-learning Model; Described regulation unit is according to the potentiometer signal of the data processing input in described dynamic data base.
5. the potentiometer interface circuit of a kind of light-emitting device as claimed in any of claims 1 to 4, it is characterized in that: also comprise one for providing the power module of electric energy, one of them reference voltage output terminal of described reference voltage unit exports negative terminal with the power supply of power module or power supply output plus terminal is connected.
6. the potentiometer interface circuit of a kind of light-emitting device as claimed in any of claims 1 to 4, is characterized in that: two signal output parts of described reference voltage unit connect two signal input parts of described potentiometer interface unit respectively by a divider resistance.
7. the potentiometer interface circuit of a kind of light-emitting device as claimed in any of claims 1 to 4, is characterized in that: a regulation unit connects a plurality of output control circuit and sampling Circuit tuning.
8. the potentiometer interface circuit of a kind of light-emitting device according to claim 7, is characterized in that: described regulation unit is MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559950.9A CN103207635B (en) | 2012-12-20 | 2012-12-20 | Potentiometer interface circuit for light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559950.9A CN103207635B (en) | 2012-12-20 | 2012-12-20 | Potentiometer interface circuit for light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103207635A CN103207635A (en) | 2013-07-17 |
| CN103207635B true CN103207635B (en) | 2015-06-03 |
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| CN201210559950.9A Expired - Fee Related CN103207635B (en) | 2012-12-20 | 2012-12-20 | Potentiometer interface circuit for light-emitting device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005010890A (en) * | 2003-06-17 | 2005-01-13 | Toyota Industries Corp | Interface circuit and interface standardization method |
| CN101853038A (en) * | 2010-06-12 | 2010-10-06 | 中兴通讯股份有限公司 | Quick-response constant current source parallel system and implementation method thereof |
| CN102789251A (en) * | 2012-05-21 | 2012-11-21 | 上海显恒光电科技股份有限公司 | Current adjustable constant current circuit |
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2012
- 2012-12-20 CN CN201210559950.9A patent/CN103207635B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005010890A (en) * | 2003-06-17 | 2005-01-13 | Toyota Industries Corp | Interface circuit and interface standardization method |
| CN101853038A (en) * | 2010-06-12 | 2010-10-06 | 中兴通讯股份有限公司 | Quick-response constant current source parallel system and implementation method thereof |
| CN102789251A (en) * | 2012-05-21 | 2012-11-21 | 上海显恒光电科技股份有限公司 | Current adjustable constant current circuit |
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| CN103207635A (en) | 2013-07-17 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wu Yibo Inventor before: Lin Zhiyi Inventor before: Li Yumei Inventor before: Li Zengguang Inventor before: Yu Quanrui |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170523 Address after: 528000, Guangdong province Foshan City Nanhai District lion Town Luo village Southern China electric light source city A seat 416, 417 Patentee after: Foshan City Han Feng Technology Co. Ltd. Address before: 201210 room 6, building 829, No. 504, Xuhui District, Shanghai, Yishan Road Patentee before: Shanghai Xianheng Photoelectric Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20181220 |