Inverter Universal LED TV Monitor Backlight Driver Converter Current Board DC TO DC 26 55 Inch CA-288

Detail produk dari Inverter Universal LED TV Monitor Backlight Driver Converter Current Board DC TO DC 26 55 Inch CA-288

Purposes: for26Inch-55InchledTV monitor voltage is exceeded100Vthe above165Vthe following

Input voltage range: 19-45V DCOutput voltage range: 60-165V DC

Output current:10MA-1000MACan be set

 

 

 

 

Before you buy, you need to know the following important information:

The operating voltage of the light bar must be in60V-165Between the arbitrary voltage. Not less than60V, If less than60VCan choose to buy my shop other goods. Can not be higher than165V, The product design limit working voltage conditions shall not be higher than165V, More than this voltage will appear screen dark or flashing lights and so on. This product is only constant current, not constant voltage, the voltage will be based on the needs of the lights automatically adjust the voltage to the appropriate voltage, so you do not need to tangle in the no-load when the measured voltage is the number of volts.
In view of the many buyers are buying modified, and the need to modify the parameters of the machine are unknown, so this statement: We sold the product quality, performance no problem, but can not absolutely guarantee that the goods purchased will Can be successfully lit the facts. There are many reasons which may lead to not match, voltage, power supply, connection, structure, etc. may cause mismatch.
On the warranty terms: one year warranty, from the date of purchase7Days after failure of the freight is responsible for one-way, one month later1Year freight themselves, maintenance free. The quality of goods sold by our shop is stable and reliable, may lead to many reasons for the bad: First, improper operation caused by short circuit; Second, did not give the correct function of the foot voltage or signal, light pole polarity is not correct; Of the actual parameters completely beyond my product parameters; (such as: light bar voltage needs180VAbove will not be driven...)
General parameters:60V-160V 200MA @ 24VIN
Problems that may be encountered with proper lighting:

1.Brightness is not enough, the screen is significantly darker than the original board, this time from two aspects, one, connected to the dimming feet after trying to try to adjust the brightness of the remote control can be resolved, if not solve, to test the actual feet Bit voltage, (Note: I products0VWhen the brightness of the darkest, darkest when the voltage is high. ) If the voltage range is analog voltage mode is0V-5Vor0V to 3.3V, If the voltage has been at a high voltage can not be reduced should be adjusted. ifPWMThe voltage of the signal is stable3.3V, This time if transferred to the brightest or not meet the requirements of the second program will have to implement. Second, adjust the board resistance, the current increases, to meet the requirements.

 
In view of many buyers for the LED driver board topology do not understand, its working principle does not understand the direct result of the consequences can not be properly used! I hereby Secretary of the current popular topology program brief. The most commonly used topology there are three: boost, buck, boost-buck.

1. Boost topology means boost type. (Vout) must be higher than the power supply input voltage (Vin), and the ratio is greater than 1: 1.5, that is, if the input voltage is 12V, the LED string voltage must be In the 18V or more, then the LED boost board to work properly, if the LED string voltage is slightly higher than VIN or VIN below the situation that occurs when the machine is a power LED lights up, driving the board switch, dimming, etc. can not Consequences of Control. 2.Boost program has the advantage of simple structure, high efficiency. The disadvantage is that the boost ratio is limited, generally the best boost ratio of 2-4 times. More than 6 times when the switching loss increased sharply, the switch device temperature soared, the system stability deterioration.

2. Buck topology means the buck type. (Vout) must be lower than the power supply input voltage (VIN), that is: if the input voltage is 12V, the light bar voltage is lower than 12V, is 24VIN when the constant current board using such programs require the load voltage It will be less than 24V, if the LED light bar when the voltage is higher than VIN can not drive light. Buck scheme has the advantage of simple structure, efficiency is slightly higher than the Boost program. The disadvantage is that only a small number of series LED, when the power is too large number of parallel groups, for space-constrained LED backlight module PCB traces adverse.

3.Boost-buck topology means up-buck type. Interpretation: This program also has a rise - buck function. The first two modes of the program it has. But the disadvantage is that the efficiency is low, not suitable for power larger occasions.

The industry's most widely used Boost program, Buck followed, boost-buck smaller.

Apa yang ada di dalam kotak

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Spesifikasi lengkap produk

Merek: AJI
SKU: 338353217_ID-349320695
Jenis Garansi: Tidak Ada Garansi
Model: CA-288