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发明公开
CN106059549A 一种基于PMOS的新型双向模拟开关电路 无效 - 驳回

一种基于PMOS的新型双向模拟开关电路
摘要：
本发明涉及一种基于PMOS的新型双向模拟开关电路，其主要技术特点是：包括PMOS管T1、PMOS管T2、NMOS管T3和六个电阻，两个PMOS管的漏极相连，PMOS管T1的源极连接电阻R1，PMOS管T2的源极连接电阻R3，PMOS管T1的栅极连接电阻R1的另一端和电阻R2，PMOS管T2的栅极连接电阻R3的另一端和电阻R4，NMOS管T3的漏极连接电阻R2的另一端和电阻R4的另一端，NMOS管T3的栅极连接电阻R5和电阻R6，NMOS管T3的源极连接电阻R6的另一端和低电压端，电阻R5的另一端连接开关控制端。本发明采用高压、大电流场效应管，使双向模拟开关的导通电流和截止耐压大大提高，并且能够适应较宽的电压范围。
摘要（英）：

The invention relates to a PMOS-based novel bidirectional analog switch circuit, which is mainly technically characterized by comprising a PMOS transistor T1, a PMOS transistor T2, an NMOS transistor T3 and six resistors, wherein drains of the two PMOS transistors are connected; the source of the PMOS transistor T1 is connected with the resistor R1; the source of the PMOS transistor T2 is connected with the resistor R3; the gate of the PMOS transistor T1 is connected with the other end of the resistor R1 and the resistor R2; the gate of the PMOS transistor T2 is connected with the other end of the resistor R3 and the resistor R4; the drain of the NMOS transistor T3 is connected with the other end of the resistor R2 and the other end of the resistor R4; the gate of the NMOS transistor T3 is connected with the resistor R5 and the resistor R6; the source of the NMOS transistor T3 is connected with the other end of the resistor R6 and a low voltage end; and the other end of the resistor R5 is connected with a switch control end. A high-voltage and large-current field effect transistor is adopted, the on current and the off withstanding voltage of the bidirectional analog switch are greatly improved, and a wide voltage range can be met.

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