Isolation switch

Abstract

An isolation switch includes a switch circuit connected between a first node and a second node so as to be turned on and off by a switch drive signal; a first transformer and a second transformer having a first primary side coil and a second primary side coil connected in parallel between a power supply terminal and a ground terminal, and a first secondary side coil and a second secondary side coil connected in series; a first pulse generation circuit and a second pulse generation circuit configured to pulse-drive the first primary side coil and the second primary side coil, respectively, in accordance with an input pulse; and a switch driving circuit configured to receive induction voltages generated in the first secondary side coil and the second secondary side coil, respectively, so as to generate the switch drive signal.

Dependencies are inferred from the claim text.