In a conventional switch circuit capable of bidirectional conductivity, there is the problem that latch-up occurs in a parasitic thyristor included in a transistor having a switching function.

• 在能够双向导电的传统开关电路中，在具有开关功能的晶体管中所包括的寄生晶闸管中存在发生闩锁效应的问题。