Invention Grant
- Patent Title: Circuit and method for switching voltage
- Patent Title (中): 开关电压的电路和方法
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Application No.: US12716287Application Date: 2010-03-03
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Publication No.: US08193835B1Publication Date: 2012-06-05
- Inventor: Yanyi Liu Wong , Rebecca Shiu Yun Cheng
- Applicant: Yanyi Liu Wong , Rebecca Shiu Yun Cheng
- Applicant Address: US CA Mountain View
- Assignee: Synopsys Inc.
- Current Assignee: Synopsys Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Evergreen Valley Law Group, P.C.
- Agent Kanika Radhakrishnan
- Main IPC: G01R19/00
- IPC: G01R19/00

Abstract:
An example of a circuit for generating high-voltage switching at an output terminal of the circuit includes a pair of n-type metal oxide semiconductor (NMOS) transistors responsive to input signals to generate a first voltage signal in a preset mode. The circuit also includes a predefined number of n-type cascode stages coupled between the output terminal and the pair of NMOS transistors to enable propagation of the first voltage signal to the output terminal. Further, the circuit includes a predefined number of p-type cascode stages coupled to the output terminal to enable propagation of the first voltage signal to an input voltage supply to the circuit. Furthermore, the circuit includes a first pair of cross-coupled p-type metal oxide semiconductor (PMOS) transistors coupled to the input voltage supply. The circuit includes a pair of PMOS transistors, coupled between the first pair of cross-coupled PMOS transistors and the p-type cascode stage.
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