CN204335073U - A kind of multi-functional OLED driving power - Google Patents
A kind of multi-functional OLED driving power Download PDFInfo
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- CN204335073U CN204335073U CN201420829971.2U CN201420829971U CN204335073U CN 204335073 U CN204335073 U CN 204335073U CN 201420829971 U CN201420829971 U CN 201420829971U CN 204335073 U CN204335073 U CN 204335073U
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- operational amplifier
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Abstract
The utility model relates to power technique fields, especially a kind of multi-functional OLED driving power.It comprises supply module, MCU control module, for interactive LCD MODULE, for providing the constant pressure source module of continuously adjustable d. c. voltage signal, for providing continuously adjustable constant current signal constant-current source module, for providing the mixing source module of the duty of the pulse voltage signal when duty when frequency-adjustable of the pulse power source module of frequency-adjustable and the reverse constant voltage mixed signal of forward constant current for providing; MCU control module controls each power module, gather and shown by LCD MODULE, and supply module is powered to described LCD MODULE by MCU control module.The utility model arranges the power supply of constant pressure source, constant-current source, the pulse power and mixing source four kinds of patterns, it can arrange the electric source modes needed for OLED driving according to OLED actual conditions neatly, there is the advantage that structure is simple, easy to operate, cost is low, there is very high using value.
Description
Technical field
The utility model relates to power technique fields, especially a kind of multi-functional OLED driving power.
Background technology
Driving voltage is low, energy consumption is little, visual angle is wide, the response time is short, volume is little, technique is simple, cost is low owing to having for organic electroluminescence device (OLED), can be widely used in flat panel display and solid state lighting field by the characteristics and advantages such as Flexible Displays.But, the difficult problem that OLED also has some urgently to be resolved hurrily, such as stability, life-span etc.Solve these difficult problems, must test the electric property of OLED, luminescent properties and lifetime stability etc. carry out overall merit OLED, then go to improve for problem.
The voltage-current characteristic of general test OLED. the driving power of the photoelectric characteristic such as voltage-luminance characteristics and current versus brightness is constant pressure source.And the electric current of OLED is directly proportional to brightness, therefore life test generally adopts constant-current source.In addition, research has been found that a kind of AC-battery power source of the special reverse constant voltage of alternating-current pulse driving-forward constant current drives the life-span can improving OLED.Trace it to its cause be reverse biased be of value to remove charge trap, stop foreign ion to drift electrode.Also have alternating-current pulse drive under electrology characteristic and DC driven under also incomplete same.Integrate, OLED drives the power supply of needs four kinds of patterns: constant voltage, constant current, ac pulse voltage and electric current one voltage mixing source.Still do not have the source power supply that simultaneously can provide these four kinds of patterns on the market at present, and tested respectively by several dissimilar power supply respectively, exist bulky, circuit is complicated, and cost is high, the shortcoming of inconvenient operation.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of structure is simple, easy to operate, cost is low, can arrange according to OLED actual conditions the multi-functional OLED driving power that required power supply exports.
In order to be realize above-mentioned purpose, the utility model adopts following technical scheme:
A kind of multi-functional OLED driving power, it comprise supply module, MCU control module, for interactive LCD MODULE, for providing the constant pressure source module of continuously adjustable d. c. voltage signal, for providing continuously adjustable constant current signal constant-current source module, for providing the duty of the pulse voltage signal when pulse power source module of frequency-adjustable and the mixing source module for the duty when frequency-adjustable that provides the reverse constant voltage mixed signal of forward constant current;
Described MCU control module is controlled constant pressure source module, constant-current source module, pulse power source module and mixing source module, gathers and shown in real time by LCD MODULE, and described supply module is powered to described LCD MODULE by described MCU control module.
Preferentially, described MCU control module comprises a STC89C52 type single-chip microcomputer.
Preferably, described constant pressure source modular circuit structure comprises the first modulus conversion chip, the first triode, the first operational amplifier, the second operational amplifier and the 3rd operational amplifier;
Described first modulus conversion chip is DAC0832 type modulus conversion chip, described first triode is BC183 type triode, described first operational amplifier is 0P07 type operational amplifier, and described second operational amplifier and the 3rd operational amplifier are LM343 type operational amplifier;
11 pin of described first modulus conversion chip are connected to described first operational amplifier inverting input, the output bifurcation road of described first operational amplifier, one branch road is connected to 9 pin of described modulus conversion chip, another branch road is connected to the inverting input of described second operational amplifier by the first resistance, the output bifurcation road of described second operational amplifier, one branch road is connected to the inverting input of described second operational amplifier by the second resistance, another branch road is connected to the in-phase input end of described 3rd operational amplifier, the output of described 3rd operational amplifier is connected to the base stage of described first triode, the emitter of described first triode is by OLED ground connection.
Preferably, described pulse power source module circuit structure comprises the second modulus conversion chip, the second triode, the 3rd triode, four-operational amplifier, the 5th operational amplifier and the 6th operational amplifier;
Described second modulus conversion chip is DAC0832 type modulus conversion chip, described second triode and the 3rd triode are BC183 type triode, described four-operational amplifier is 0P07 type operational amplifier, and described 5th operational amplifier and the 6th operational amplifier are LM343 type operational amplifier;
8 pin of described second modulus conversion chip are connected to the collector electrode of described second triode by the 3rd resistance, the base stage of described second triode is connected with described STC89C52 type single-chip microcomputer, and subsequent conditioning circuit syndeton is identical with described constant pressure source modular circuit structure.
Preferably, described constant-current source module with mix source module circuit structure and comprise a diode, the 7th operational amplifier and the 8th operational amplifier;
Described diode is IN4148 type diode, and described 7th operational amplifier and the 8th operational amplifier are LM343 type operational amplifier;
The in-phase input end bifurcation road of described 7th operational amplifier, one branch road is connected to the voltage signal inputs of described constant pressure source module or pulse power source module by the 4th resistance, and another branch road is connected to the output of described 8th operational amplifier successively by the 5th resistance, diode; The output bifurcation road of described 7th operational amplifier, a branch road is successively by the 6th resistance, the 7th grounding through resistance, and another branch road is connected to the in-phase input end of described 8th operational amplifier by the 8th resistance; The in-phase input end of described 8th operational amplifier is also connected to the described 5th between resistance and diode by OLED ground connection, inverting input.
Preferably, described LCD MODULE is LCD1602 type LCD MODULE.
Owing to have employed such scheme, the utility model arranges the power supply of constant pressure source, constant-current source, the pulse power and mixing source four kinds of patterns, it can arrange the electric source modes needed for OLED driving according to OLED actual conditions neatly, has the advantage that structure is simple, easy to operate, cost is low.
Accompanying drawing explanation
Fig. 1 is the general principles block diagram of the utility model embodiment;
Fig. 2 is the constant pressure source modular circuit structure chart of the utility model embodiment;
Fig. 3 is the pulse power source module circuit structure diagram of the utility model embodiment;
Fig. 4 be the utility model embodiment constant-current source with mix source module circuit structure diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the multi-functional OLED driving power of one of the present embodiment, it comprises supply module 1, MCU control module 2, for interactive LCD MODULE 3, for providing the constant pressure source module 4 of the continuously adjustable d. c. voltage signal of 0 ~ 30V, for providing 0 ~ 100mA continuously adjustable constant current signal constant-current source module 5, for 0 ~ ± 30V pulse voltage signal is provided duty when frequency-adjustable pulse power source module 6 and for providing 0 ~ 100mA, the mixing source module 7 of the duty of the reverse constant voltage mixed signal of forward constant current of 0 ~ 15V when frequency-adjustable, MCU control module 2 pairs of constant pressure source modules 4, constant-current source module 5, pulse power source module 6 and mixing source module 7 are controlled, gather and shown in real time by LCD MODULE 3, and supply module 1 is powered to LCD MODULE 3 by MCU control module 2.
The present embodiment can arrange the power supply of constant pressure source module 4, constant-current source module 5, pulse power source module 6 and mixing source module 7 four kinds of patterns needed for OLED driving neatly, this power supply not only leaves serial line interface can arrange required power supply on host computer, and the LCD MODULE 3 arranged makes this power supply independently to use, the driving of OLED is made to become convenient and swift, the simple and convenient operation of circuit.
As shown in Figure 2, constant pressure source modular circuit 4 structure of the present embodiment comprises the first modulus conversion chip A1, the first triode VT1, the first operational amplifier Q1, the second operational amplifier Q2 and the 3rd operational amplifier Q3;
First modulus conversion chip A1 is DAC0832 type modulus conversion chip, first triode VT1 is BC183 type triode, first operational amplifier Q1 is 0P07 type operational amplifier, and the second operational amplifier Q2 and the 3rd operational amplifier Q3 is LM343 type operational amplifier;
11 pin of the first modulus conversion chip A1 are connected to the first operational amplifier Q1 inverting input, the output bifurcation road of the first operational amplifier Q2, one branch road is connected to 9 pin of the first modulus conversion chip, another branch road is connected to the inverting input of the second operational amplifier Q2 by the first resistance R1, the output bifurcation road of the second operational amplifier Q2, one branch road is connected to the inverting input of the second operational amplifier Q2 by the second resistance R2, another branch road is connected to the in-phase input end of the 3rd operational amplifier Q3, the output of the 3rd operational amplifier Q3 is connected to the base stage of the first triode VT1, the emitter of the first triode VT1 is by OLED ground connection.
0-30V adjustable constant voltage source module 4T is that STC89C52 type single-chip microcomputer is according to the voltage swing arranged as principle, P0 mouth exports corresponding digital signal, then access DAC0832 type analog-digital chip and convert analog current signal to, adopt the first operational amplifier Q1 current analog signal to be converted to analog voltage signal to be supplied to the second operational amplifier Q2 and to amplify, 3rd operational amplifier Q3 forms a follow circuit, ensure the stable power-supplying of circuit, additionally use the first triode VT1 in order to regulated output voltage improves in driving force circuit.
As shown in Figure 3, pulse power source module 6 circuit structure of the present embodiment comprises the second modulus conversion chip A2, the second triode VT2, the 3rd triode VT3, four-operational amplifier Q4, the 5th operational amplifier Q5 and the 6th operational amplifier Q6;
Second modulus conversion chip A2 is DAC0832 type modulus conversion chip, second triode VT2 and the 3rd triode VT3 is BC183 type triode, four-operational amplifier Q4 is 0P07 type operational amplifier, and the 5th operational amplifier Q5 and the 6th operational amplifier Q6 is LM343 type operational amplifier;
8 pin of the second modulus conversion chip A2 are connected to the collector electrode of the second triode VT2 by the 3rd resistance R3, the base stage of described second triode VT2 is connected with STC89C52 type single-chip microcomputer, and subsequent conditioning circuit structure is identical with described constant pressure source module 4 circuit structure.
The operation principle of pulse power source module 6 and constant pressure source module 4 is similar, STC89C52 type single-chip microcomputer is according to the ac pulse voltage size arranged, and then P1 mouth output respective quadrature streaming digital signal accesses DAC0832 type analog-digital chip and convert analog signal to. and the input as rear class operational amplifier carries out amplification and exports.Second triode VT2 plays on-off action, for switching reference voltages, obtains the pulse of low and high level.Subsequent conditioning circuit is the same with constant pressure source module 4.
As shown in Figure 4, the present embodiment constant-current source module 5 with mix source module 6 circuit structure and comprise a diode D, the 7th operational amplifier Q4 and the 8th operational amplifier Q5;
Diode D is IN4148 type diode, and the 7th operational amplifier Q7 and the 8th operational amplifier Q8 is LM343 type operational amplifier;
The in-phase input end bifurcation road of the 7th operational amplifier Q7, one branch road is connected to the voltage signal inputs of constant pressure source module 4 or pulse power source module 6 by the 4th resistance R4, and another branch road is connected to the output of the 8th operational amplifier Q8 successively by the 5th resistance R5, diode D; The output bifurcation road of the 7th operational amplifier Q7, a branch road is successively by the 6th resistance R6, the 7th resistance R7 ground connection, and another branch road is connected to the in-phase input end of the 8th operational amplifier Q8 by the 8th resistance R8; The in-phase input end of the 8th operational amplifier Q8 is also connected between the 5th resistance R5 and diode D by OLED ground connection, inverting input.
Type and the current/voltage amplitude of power supply can be adjusted by input Vi, Vi is the output voltage V2 of the voltage V1 that exports of aforementioned adjustable constant voltage source module 4 or the duty when pulse power source module 6 of frequency-adjustable, if Vi is constant voltage signal, the conducting of IN4148 type diode forward, when R6/R7=R5/R4 sets up, now circuit is the positive and negative feedback balanced circuit of a standard, be equivalent to a voltage controlled current source, if the size of change voltage Vi and the size Vi of adjustable output constant current are ac pulse voltage signal, when R6/R7=R5/R4 sets up, be timing at Vi, now be equivalent to a voltage controlled current source as mentioned above.But at Vi for time negative, the output of operational amplifier Q8 is negative voltage signal, now IN4148 type diode is in reverse blocking state, block the positive feedback loop of operational amplifier Q7, order reduction becomes an in-phase proportion amplifier, quite add a reverse voltage at OLED two ends, change the size of voltage Vi and the size of adjustable reverse voltage, the electric current now flowing through OLED is zero.
In addition, LCD1602 type LCD MODULE can realize the functions such as character moves, glimmers, the display of electric current and voltage numerical value.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a multi-functional OLED driving power, is characterized in that: it comprise supply module, MCU control module, for interactive LCD MODULE, for providing the constant pressure source module of continuously adjustable d. c. voltage signal, for providing continuously adjustable constant current signal constant-current source module, for providing the duty of the pulse voltage signal when pulse power source module of frequency-adjustable and the mixing source module for the duty when frequency-adjustable that provides the reverse constant voltage mixed signal of forward constant current;
Described MCU control module is controlled described constant pressure source module, constant-current source module, pulse power source module and mixing source module, gathers and shown in real time by described LCD MODULE, and described supply module is powered to described LCD MODULE by described MCU control module.
2. a kind of multi-functional OLED driving power as claimed in claim 1, is characterized in that: described MCU control module comprises a STC89C52 type single-chip microcomputer.
3. a kind of multi-functional OLED driving power as claimed in claim 1, is characterized in that: described constant pressure source modular circuit structure comprises the first modulus conversion chip, the first triode, the first operational amplifier, the second operational amplifier and the 3rd operational amplifier;
Described first modulus conversion chip is DAC0832 type modulus conversion chip, described first triode is BC183 type triode, described first operational amplifier is OP07 type operational amplifier, and described second operational amplifier and the 3rd operational amplifier are LM343 type operational amplifier;
11 pin of described first modulus conversion chip are connected to described first operational amplifier inverting input, the output bifurcation road of described first operational amplifier, one branch road is connected to 9 pin of described first modulus conversion chip, another branch road is connected to the inverting input of described second operational amplifier by the first resistance, the output bifurcation road of described second operational amplifier, one branch road is connected to the inverting input of described second operational amplifier by the second resistance, another branch road is connected to the in-phase input end of described 3rd operational amplifier, the output of described 3rd operational amplifier is connected to the base stage of described first triode, the emitter of described first triode is by OLED ground connection.
4. a kind of multi-functional OLED driving power as claimed in claim 2, is characterized in that: described pulse power source module circuit structure comprises the second modulus conversion chip, the second triode, the 3rd triode, four-operational amplifier, the 5th operational amplifier and the 6th operational amplifier;
Described second modulus conversion chip is DAC0832 type modulus conversion chip, described second triode and the 3rd triode are BC183 type triode, described four-operational amplifier is OP07 type operational amplifier, and described 5th operational amplifier and the 6th operational amplifier are LM343 type operational amplifier;
8 pin of described second modulus conversion chip are connected to the collector electrode of described second triode by the 3rd resistance, the base stage of described second triode is connected with described STC89C52 type single-chip microcomputer, and subsequent conditioning circuit structure is identical with described constant pressure source modular circuit structure.
5. a kind of multi-functional OLED driving power as claimed in claim 1, is characterized in that: described constant-current source module with mix source module circuit structure and comprise a diode, the 7th operational amplifier and the 8th operational amplifier;
Described diode is IN4148 type diode, and described 7th operational amplifier and the 8th operational amplifier are LM343 type operational amplifier;
The in-phase input end bifurcation road of described 7th operational amplifier, one branch road is connected to the voltage signal inputs of described constant pressure source module or pulse power source module by the 4th resistance, and another branch road is connected to the output of described 8th operational amplifier successively by the 5th resistance, diode; The output bifurcation road of described 7th operational amplifier, a branch road is successively by the 6th resistance, the 7th grounding through resistance, and another branch road is connected to the in-phase input end of described 8th operational amplifier by the 8th resistance; The in-phase input end of described 8th operational amplifier is also connected to the described 5th between resistance and diode by OLED ground connection, inverting input.
6. a kind of multi-functional OLED driving power as claimed in claim 1, is characterized in that: described LCD MODULE is LCD1602 type LCD MODULE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829971.2U CN204335073U (en) | 2014-12-23 | 2014-12-23 | A kind of multi-functional OLED driving power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829971.2U CN204335073U (en) | 2014-12-23 | 2014-12-23 | A kind of multi-functional OLED driving power |
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| CN204335073U true CN204335073U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797499A (en) * | 2017-11-30 | 2018-03-13 | 佛山科学技术学院 | A kind of pulsed programmable power supply and control method |
| CN108572288A (en) * | 2017-09-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of aging tooling for LED module sub-unit |
-
2014
- 2014-12-23 CN CN201420829971.2U patent/CN204335073U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572288A (en) * | 2017-09-22 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of aging tooling for LED module sub-unit |
| CN107797499A (en) * | 2017-11-30 | 2018-03-13 | 佛山科学技术学院 | A kind of pulsed programmable power supply and control method |
| CN107797499B (en) * | 2017-11-30 | 2023-10-31 | 佛山科学技术学院 | Pulse type program-controlled power supply and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dang Yingcai Inventor before: Wang Jin |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151221 Address after: 528455 Guangdong province Zhongshan City, four South Road No. 50 Building No. 3 second two Patentee after: Zhongshan Heng Neng Electronic Technology Co., Ltd. Address before: A-6C, Rong Xing Road, Longgang Road, Bantian District, Guangdong, Shenzhen Patentee before: Lan Siteng Science and Technology Ltd. of Shenzhen |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |