SEMICONDUCTOR FLYING CAPACITOR MULTIPLEXER

摘要

PURPOSE: To prevent the leakage current generated at each contact of each opened semiconductor switch by the common noises from flowing into a voltage processing circuit in regard of a semiconductor flying capacitor multiplexer. ;CONSTITUTION: A 1st auxiliary switch 11 which opens and closes in the same state as a 1st semiconductor switch 3 is put into the supply phase of the measured voltage of the switch 3. The connection point between both switched 11 and 3 is connected to an earth side signal line 14 of a voltage processing circuit via a 1st earth line 13. Then a 1st earth switch 12 which opens and closes in the opposite state to the switch 3 is put into the line 13. In the same way, a 2nd auxiliary switch 15, a 2nd earth line 17 and a 2nd earth switch 16 are provided to the voltage processing circuit a 2nd semiconductor switch 5.;COPYRIGHT: (C)1994,JPO&Japio