Isolated bidirectional high-voltage analog switch
US10097178B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2017 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0045
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.