CN209731074U - A kind of liquid-crystalline glasses detection jig power-supply system - Google Patents
A kind of liquid-crystalline glasses detection jig power-supply system Download PDFInfo
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- CN209731074U CN209731074U CN201920345680.9U CN201920345680U CN209731074U CN 209731074 U CN209731074 U CN 209731074U CN 201920345680 U CN201920345680 U CN 201920345680U CN 209731074 U CN209731074 U CN 209731074U
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Abstract
The utility model discloses a kind of liquid-crystalline glasses detection jig power-supply system, comprising: power supply interface and power supply module, the power supply module include: circuit module 1-8.The power supply interface provides external power supply to the power supply module, the output voltage of the circuit module 1 is that the circuit module 2, circuit module 7 and circuit module 8 provide initial voltage, the liquid-crystalline glasses detection jig power-supply system is additionally provided with reserved power interface, provides 24V DC power supply for electromagnetism anti-misoperation device or pneumatic anti-misoperation device.The utility model passes through modular power configuration scheme, a kind of novel power supply means are provided to detect jig applied to the liquid-crystalline glasses of liquid crystal display die set, voltage output is more stable, accurate, reliable, can go wrong module according to fault fast positioning, it is overhauled, is provided a strong guarantee for power supply reliability.
Description
Technical field
The utility model relates to a kind of detection jig power-supply systems more particularly to a kind of liquid-crystalline glasses to detect jig power supply system
System.
Background technique
Important component of the liquid-crystalline glasses as liquid crystal display die set, quality directly affect the aobvious of liquid crystal display die set
Show effect.In process of production, liquid crystal doping foreign matter, glass-cutting be scattered glass chip or cutting deviation can all cause to show it is different
Often.It is lost caused by defective products inflow junior's process to reduce, improves product yield, the detection of liquid crystal display glass monomer seems
It is particularly important.Available liquid crystal glass detection jig detection mainboard relies primarily on digital simulation switching switch and digital analog converter
To simulate liquid crystal module IC output timing signal, integrated operational amplifier output voltage analog regulation RED (red), GREEN
(green), three reference voltages of BLUE (blue) change RGB and synthesize color.Detect the IC member that the master control system of mainboard uses
Device needs 30V, 24V (adjustable), 20V, 15V, 10V, 5V, 3.3V, 0V, -15V voltage class.Power supply system is as liquid crystal glass
Glass detects the pith of jig, assumes responsibility for detection system and distributes the important rank to liquid crystal display again from power supply to clock signal
Effect is connect, is the important link for detecting liquid-crystalline glasses and normally showing.In conventional liquid-crystalline glasses detection jig, usually think little of
The importance of power supply system does not do excessive requirement to the power supply quality of supply voltage part, only carries out lighting for liquid-crystalline glasses
Work.Good liquid-crystalline glasses detection jig quality of power supply plays a very important role liquid crystal display, applies at present
Liquid-crystalline glasses detection jig power supply system on site relies primarily on the integrated mode of analog circuit and carries out, output voltage stability
Difference, component reliability is low, once there is component damage, difficulty is searched in fault point, and maintenance cycle is long, uses in workshop scale
Resource serious waste is caused in the process.
Gradually attention with domestic cell phone manufacturer to liquid crystal module glass structure and appearance, liquid-crystalline glasses detect jig and supply
Electric system reliability requirement is also higher and higher, and scientific and effective power supply system is to guarantee detection jig detection liquid-crystalline glasses product matter
The important means of amount.Research and develop a kind of output of voltage class stablize, accurate, high reliablity, fault point investigation is easy, and again can basis
The glass of different demands trim voltage grade detects jig power-supply system, is always production scene technical problem urgently to be resolved.
Utility model content
The purpose of the utility model is to provide a kind of outputs of voltage class to stablize, accurate, high reliablity, fault point investigation letter
Just, and jig power-supply system can be detected according to the liquid-crystalline glasses of different demands trim voltage grade.
The technical solution of the utility model is as follows: the utility model provides a kind of liquid-crystalline glasses detection jig power-supply system,
It include: power supply interface and power supply module, the power supply interface provides the external power supply of 24V, the power supply to the power supply module
Module includes:
Circuit module 1, the circuit module 1 is that 24V turns 5V circuit, for giving detection mainboard buzzer, serial ports LED indication
Lamp provides working power；
Circuit module 2, the circuit module 2 are that 5V turns 3.3V circuit, for detection mainboard Master control chip, storage core
Piece, touch key-press chip, program download interface provide working power；
Circuit module 3, the circuit module 3 is that 24V turns 15V circuit, for providing liquid required when liquid-crystalline glasses are lighted
Crystalline substance opens VGH power supply；
Circuit module 4, the circuit module 4 is that+15V turns -15V circuit, required when liquid-crystalline glasses are closed for providing
Liquid crystal closes VGL power supply；
Circuit module 5, the circuit module 5 is that 24V turns 20V circuit, for providing detection mainboard rear end analog switch core
The input power of piece；
Circuit module 6, the circuit module 6 are that 24V turns 10V circuit, convert core for providing detection mainboard rear end D/A
The power supply of piece；
Circuit module 7, the circuit module 7 are that 5V turns 30V circuit, provide power supply for backend amplifier；Circuit module 8,
The circuit module 8 is module group backlight boosting conditioned circuit module, for adjusting module group backlight brightness；
The circuit module 1 is that the circuit module 2, circuit module 7 and circuit module 8 provide initial voltage, the electricity
Road module 3 is that the circuit module 4 provides initial voltage.
The circuit module 1 uses XL2596-5.0E1 chip.
The circuit module 2 uses AMS1117-3.3 chip.
The circuit module 3 uses XL2596-ADJE1 chip.
The circuit module 4 uses XL2596-ADJE1 chip.
The circuit module 5 uses XL2596-ADJE1 chip.
The circuit module 6 uses TL431 chip.
The circuit module 7 uses MC34063 chip.
The circuit module 8 uses XL6091 chip.
The liquid-crystalline glasses detection jig power-supply system is additionally provided with reserved power interface, is electromagnetism anti-misoperation device or pneumatically prevents
Slow-witted device provides 24V DC power supply.
Using the above scheme, the utility model is by modular power configuration scheme, for applied to liquid crystal display die set
Liquid-crystalline glasses detection jig provide a kind of novel power supply means, voltage output is more stable, accurate, reliable, Ke Yigen
It goes wrong module according to fault fast positioning, is overhauled, provided a strong guarantee for power supply reliability.
Detailed description of the invention
Fig. 1 is the utility model power-supply system functional block diagram.
Fig. 2 is the circuit diagram of the utility model circuit module 1.
Fig. 3 is the circuit diagram of the utility model circuit module 2.
Fig. 4 is the circuit diagram of the utility model circuit module 3.
Fig. 5 is the circuit diagram of the utility model circuit module 4.
Fig. 6 is the circuit diagram of the utility model circuit module 5.
Fig. 7 is the circuit diagram of the utility model circuit module 6.
Fig. 8 is the circuit diagram of the utility model circuit module 7.
Fig. 9 is the circuit diagram of the utility model circuit module 8.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides a kind of liquid-crystalline glasses detection jig power-supply system, is powered using 24V DC power supply, passes through mould
The power configuration scheme of block, each voltage class output module is mutually indepedent, is independent of each other, and is jig trouble hunting provider
Just.
Referring to Fig. 1, the utility model provides a kind of liquid-crystalline glasses detection jig power-supply system, comprising: power supply interface and
Power supply module, the power supply interface provide external power supply to the power supply module, and the external power supply is 24V direct current supply electricity
Source, the power supply module include: circuit module 1, circuit module 2, circuit module 3, circuit module 4, circuit module 5, circuit mould
Block 6, circuit module 7 and circuit module 8.
Circuit module 1, circuit diagram is as shown in Fig. 2, and the circuit module 1 is that 24V turns 5V circuit, uses fixed voltage
The XL2596-5.0E1 chip of output is completed defeated by inductance L1 after being depressured using 24V power supply as input power using chip
5V voltage out can be used as the power supply of the devices such as detection mainboard buzzer, serial ports LED light.The circuit also uses capacitor C3
It is filtered pressure stabilizing with capacitor C7, with further improving stability.The chip maximum output current meets entire detection up to 3A
Mainboard downstream components power demand.The circuit need to only configure dimension due to exporting model chip using fixed voltage
Burning voltage output can be realized in model inductance, capacitor, and circuit structure is relatively simple.
Circuit module 2, circuit diagram is as shown in Fig. 3, and the circuit module 2 is that 5V turns 3.3V circuit, the circuit module 2
It connects the circuit module 1 and uses fixed voltage using the output voltage of circuit module 1 as the initial voltage of circuit module 2
Output is 3.3V voltage AMS1117-3.3 chip, which passes through an inductance connection to stable 5V DC power supply, warp
After chip interior decompression, using capacitor C14 and capacitor C16 filtering voltage regulation, completing the decompression of 5V voltage class is 3.3V voltage class
Work, the power supply of the devices such as Master control chip, storage chip, touch key-press chip, program download interface as detection mainboard
Source.The chip interior integrates overheating protection and current-limiting circuit, is embedded system and portable with 1% output voltage precision
The best power supply of formula equipment selects.Magnetic bead is added in the circuit module can realize filter function, can also be achieved electricity after magnetic bead removal
Stream detection.
Circuit module 3, circuit diagram is as shown in Fig. 4, and the circuit module 3 is that 24V turns 15V circuit, uses adjustable
Voltage output chip XL2596-ADJE1 obtains required voltage by adjusting the resistance value of feedback resistance, and output end uses capacitor
C5 and capacitor C8 are filtered pressure stabilizing.The circuit output voltage grade and the relationship of feedback resistance can be obtained by following equation:
VOUT=1.23* (1+R3/R9)
Output 15V voltage required liquid crystal cut-in voltage VGH voltage source when lighting as liquid-crystalline glasses, faces required difference
The liquid-crystalline glasses of the different model of VGH voltage can reach the mesh of adjustment VGH voltage by adjusting the resistance value mode of feedback resistance
's.
Circuit module 4, circuit diagram is as shown in Fig. 5, and the circuit module 4 is that+15V turns -15V circuit；Using adjustable
The output pin of chip is connected to power cathode in a manner of null offset by voltage output chip XL2596-ADJE1, adjusts core
The feedback resistance of piece realizes the purpose for dragging down input terminal voltage, so that the input port decompression of chip is reduced to required negative pressure and makees
Voltage VGL is closed for liquid crystal.The circuit output voltage grade and the relationship of feedback resistance can be obtained by following equation:
VOUT=-1.23* (1+R15/R22)
It, can be by adjusting the resistance value of feedback resistance equally in face of the liquid-crystalline glasses of the different model of required difference VGH voltage
Mode achievees the purpose that adjust VGL voltage.The circuit module 4 can provide input power with selecting circuit module 3 for it.
Circuit module 5, circuit diagram is as shown in Fig. 6, and the circuit module 5 is that 24V turns 20V circuit；Using adjustable electric
Pio chip XL2596-ADJE1 is pressed, the output voltage of chip is stablized into pincers in 20V voltage class, as inspection by feedback resistance
Survey the voltage input of mainboard rear end analog switch chip.The circuit output voltage grade and the relationship of feedback resistance can be by following public affairs
Formula obtains:
VOUT=1.23* (1+R20/R24)
Circuit module 6, circuit diagram is as shown in Fig. 7, and the circuit module 6 is that 24V turns 10V circuit, utilizes TL431 core
2.5V reference voltage inside piece, is adjusted by feedback resistance, realizes that chip interior shunts, and it is defeated to guarantee that chip output mouth is stablized
Out, it realizes that supply voltage switchs to 10V burning voltage, the reference voltage of detection mainboard rear end D/A conversion chip is provided.The circuit is defeated
Voltage class and the relationship of feedback resistance can be obtained by following equation out:
VOUT=VREF* (1+R91/R92)=2.5* (1+R91/R92)
Circuit module 7, circuit diagram is as shown in Fig. 8, and the circuit module 7 is that 5V turns 30V circuit, using MC34063 liter
Pressure/decompression change-over switch adjusts integrated control chip, realizes that 5V voltage is put to the conversion of 30V voltage for rear end in detection mainboard
Big device provides 30V voltage, and up to 2%, which is carried out output voltage precision using capacitor C36 and polar capacitor C39
Filtering voltage regulation, with improving stability.The circuit output voltage grade and the relationship of feedback resistance can be obtained by following equation:
VOUT=1.25* (1+R93/R36)
Circuit module 8, circuit diagram is as shown in Fig. 9, and the circuit module 8 is module group backlight boosting conditioned circuit module,
The module adjusts chip feedback resistance using adjustable XL6091 chip is exported, by potentiometer, realizes 5V electricity in detection mainboard
Pressure switchs to adjustable module group backlight voltage, achievees the purpose that adjust module group backlight brightness.The circuit output voltage grade and feedback electricity
The relationship of resistance can be obtained by following equation:
V_LED=1.25* [1+ (RLED//R96)/R17]
By importing potentiometer in the circuit module, module group backlight voltage regulation limits can be controlled in 4.125V-
29.125V。
In addition, liquid-crystalline glasses detection jig power-supply system is additionally provided with reserved power interface, be electromagnetism anti-misoperation device or
Pneumatic anti-misoperation device provides 24V DC power supply.
In conclusion the utility model is by modular power configuration scheme, it is electric using the boosting based on feedback resistance
Road can adjust boosting output, by adjusting the mode of feedback resistance resistance value to cope with different model liquid-crystalline glasses to different voltages
The demand of grade.It is noted that circuit module 4 uses the negative pressure generative circuit based on null offset in the utility model,
The boosting output end of power supply chip is connected to the port GND, so that the method for reducing input voltage, it is defeated to solve direct current high negative pressure
Problem out solves the problems, such as liquid-crystalline glasses detection jig high negative pressure power supply so that negative pressure output reaches -15V.This power supply system
The design of system is so that the reduction of power-supply system peripheral integrated circuit component number, improves the power quality of each voltage class, in fact
Integrated, the modularized design of power module are showed, have been liquid crystal display die set convenient for subsequent by each power unit modularized production
Liquid-crystalline glasses detection jig provide a kind of novel power supply means, voltage output is more stable, accurate, reliable, Ke Yigen
It goes wrong module according to fault fast positioning, is overhauled, provide powerful guarantee for power supply reliability.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of liquid-crystalline glasses detect jig power-supply system characterized by comprising power supply interface and power supply module, the confession
Electrical interface provides the external power supply of 24V to the power supply module, and the power supply module includes:
Circuit module 1, the circuit module 1 are that 24V turns 5V circuit, for mentioning to detection mainboard buzzer, serial ports LED light
For working power；
Circuit module 2, the circuit module 2 be 5V turn 3.3V circuit, for detection mainboard Master control chip, storage chip,
Touch key-press chip, program download interface provide working power；
Circuit module 3, the circuit module 3 are that 24V turns 15V circuit, and the liquid crystal for providing required when liquid-crystalline glasses are lighted is opened
Open VGH power supply；
Circuit module 4, the circuit module 4 is that+15V turns -15V circuit, for providing liquid crystal required when liquid-crystalline glasses are closed
Close VGL power supply；
Circuit module 5, the circuit module 5 is that 24V turns 20V circuit, for providing detection mainboard rear end analog switch chip
Input power；
Circuit module 6, the circuit module 6 is that 24V turns 10V circuit, for providing the electricity of detection mainboard rear end D/A conversion chip
Source；
Circuit module 7, the circuit module 7 are that 5V turns 30V circuit, provide power supply for backend amplifier；Circuit module 8, it is described
Circuit module 8 is module group backlight boosting conditioned circuit module, for adjusting module group backlight brightness；
The output voltage of the circuit module 1 is that the circuit module 2, circuit module 7 and circuit module 8 provide initial voltage,
The circuit module 3 is that the circuit module 4 provides initial voltage.
2. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 1 is adopted
With XL2596-5.0E1 chip.
3. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 2 is adopted
With AMS1117-3.3 chip.
4. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 3 is adopted
With XL2596-ADJE1 chip.
5. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 4 is adopted
With XL2596-ADJE1 chip.
6. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 5 is adopted
With XL2596-ADJE1 chip.
7. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 6 is adopted
With TL431 chip.
8. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 7 is adopted
With MC34063 chip.
9. liquid-crystalline glasses according to claim 1 detect jig power-supply system, which is characterized in that the circuit module 8 is adopted
With XL6091 chip.
10. -9 described in any item liquid-crystalline glasses detect jig power-supply system according to claim 1, which is characterized in that the liquid
Crystal glass detection jig power-supply system is additionally provided with reserved power interface, provides 24V for electromagnetism anti-misoperation device or pneumatic anti-misoperation device
DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345680.9U CN209731074U (en) | 2019-03-18 | 2019-03-18 | A kind of liquid-crystalline glasses detection jig power-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345680.9U CN209731074U (en) | 2019-03-18 | 2019-03-18 | A kind of liquid-crystalline glasses detection jig power-supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209731074U true CN209731074U (en) | 2019-12-03 |
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ID=68687171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920345680.9U Active CN209731074U (en) | 2019-03-18 | 2019-03-18 | A kind of liquid-crystalline glasses detection jig power-supply system |
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| Country | Link |
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| CN (1) | CN209731074U (en) |
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2019
- 2019-03-18 CN CN201920345680.9U patent/CN209731074U/en active Active
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