Single-button control off of the relay circuit 2

After the turn-off circuit is first applied to the next KA KA, intermediate interval required less than Is, this is because when the time is up to 3 times the charge time const

ant r C1, i.e. t 3r 2R2C1 3 1 l03 X 220x lO- s a o. When the 66s, Cl both ends of the capacitor voltage to rise above 20V.

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