Invention Grant
- Patent Title: Isolated bidirectional high-voltage analog switch
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Application No.: US15624058Application Date: 2017-06-15
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Publication No.: US10097178B1Publication Date: 2018-10-09
- Inventor: Haijiang Ou , Xiaofang Suo
- Applicant: SUNLITE SCIENCE & TECHNOLOGY, INC.
- Applicant Address: US KS Lawrence
- Assignee: SUNLITE SCIENCE & TECHNOLOGY, INC.
- Current Assignee: SUNLITE SCIENCE & TECHNOLOGY, INC.
- Current Assignee Address: US KS Lawrence
- Agency: Erise IP, P.A.
- Main IPC: H03K17/00
- IPC: H03K17/00 ; H03K17/687 ; H03K17/60

Abstract:
Embodiments of the present disclosure include a bidirectional analog switch having a pair of high-voltage transistors coupled together via a common source and gate. The switches are configured to effectively isolate an input terminal from an output terminal by passing leakage and feedthrough to a power supply. In certain embodiments, an off-state pinned switch pins the common source voltage to a power source voltage. A logic circuit receives an input logic signal and generates two non-overlapped output logic signals for controlling the pair of transistors and the off-state pinned switch. In other embodiments, a resistor pins the common source voltage to a power supply voltage for passing leakage and feedthrough to the power supply.
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