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What is the reason for the slow switching speed of mos?

Discussion in 'Mac Ham Radio on macOS & iOS' started by CRYSTAL2080, Oct 26, 2021.

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  1. CRYSTAL2080

    CRYSTAL2080 QRZ Member

    The single-chip microcomputer drives the IO port, and the reaction time of the top and bottom edges of the optocoupler 3 pins is basically within 1ms, but the top and bottom edges of the mos tube switching waveform are basically about 40ms. The drain in the figure has been connected to the +KM and 10K resistors through the wiring terminals. The switching response time Why is it so long? upload_2021-10-26_17-24-21.png

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