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Led display of constant current and constant voltage main what is the difference
by:Xinyao LCD
2020-03-28
Constant current drive of the output current is constant, the output of the dc voltage is different with the size of the load resistance changes within a certain range, is responsible for the small resistance, low output voltage, is responsible for the greater the resistance, the higher the output voltage.
And constant voltage driver, it is the output voltage is fixed, but the output current will change as the load increase and decrease.
In general, constant current drive would be a good product, at the same time, it will be more expensive.
Because of the constant current drive products, it a few more lines and chip, let the electric current can keep constant, increase the service life of the LED display and stability.
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