Gate Isolated Drive Circuit With The Optocoupler

Published:2011/7/16 22:42:00 Author:nelly | Keyword: Gate Isolated, Drive Circuit, Optocoupler | From:SeekIC

Picture B has given the high-speed optocoupler. This high -speed optocoupler is composed of GaAlAsLED, PN Photodiode output and the Current amplification transistor. The TLP559 input current and output current have the good linear relationship which can be used in the analog circuit. The current transmitting ratio is very small, which is only 40%; the up and down current transmitting delay times are 2000ns and 300ns，Therefore, the transmitting ratio is much higher than TLP521.



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