Therefore it is an object of the present invention to provide a switch circuit capable of bidirectional conductivity while suppressing the occurrence of latch-up due to a parasitic thyristor.

• 因此，本发明的一个目的在于提供一种能够双向导电并且同时抑制由于寄生晶闸管的闩锁效应的发生的开关电路。