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What is the main difference between constant current and constant voltage of led display

Time:2018-12-24 Views:21
Constant current drive output current is constant, and the output dc voltage will vary with the size of the load resistance value in a certain range, the resistance value is small, the output voltage is low, the greater the resistance, the higher the output voltage.
The constant voltage drive is the output voltage is fixed, but the output current will vary with the increase or decrease of the load.
In general, constant current driven products will be better, but also more expensive.Because of constant-current driven products, it has more lines and chips, so that the current can be kept constant, increasing the service life and stability of LED display screen.
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