公开(公告)号：EP4429111A1

公开(公告)日：2024-09-11

申请号：EP24161675.4

申请日：2024-03-06

Applicant: RichWave Technology Corp.

Inventor： PAI, Ching-Yao

IPC: H03K17/10 ,  H03K17/693 ,  H03K17/081

CPC classification number: H03K17/102 ,  H03K17/08104 ,  H03K17/693

Abstract: A radio frequency switch circuit (100) includes a series circuit (110_1 to 110_4, 210, 310, 410). The series circuit (110_1 to 110_4, 210, 310, 410) includes a first series connection group (211, 311, 411) and a second series connection group (212, 312, 412). The first series connection group (211, 311, 411) includes first transistors (T1_1 to T4_1). The second series connection group (212, 312, 412) includes second transistors (T1_2 to T4_2). When an electrostatic discharge event occurs, a voltage at control terminals of the first transistors (T1_1 to T4_1) are different from a voltage at control terminals of the second transistors (T1_2 to T4_2). In a normal operation state, switch states of the first series connection group (211, 311, 411) and the second series connection group (212, 312, 412) are the same as each other.