Circuit Removes Relay-Contact Bounce
Advances in semiconductor technology have allowed ICs to replace many mechanical relays, but relays still dominate in high-current circuits that must stand off high voltages of arbitrary polarity. Contact bounce in those relays, however, can prove troublesome to downstream circuitry. Adding a p-channel MOSFET and a hot-swap controller IC to a mechanical relay removes relay-contact bounce and reduces inrush current.
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