Analog switch with boost current for fast turn on
US11489519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2021 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jul 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog switch includes an input terminal, an output terminal, a common gate, and a common source. The switch includes a current source which has a first input coupled to a first voltage supply, a control input coupled to receive a gate boost signal, and an output coupled to the common gate. The current source supplies a boost gate current to the common gate during a boost period and supplies a reduced gate current during a second period different than the boost period. The switch includes a clamp circuit which has a first terminal coupled to the common gate, a second terminal coupled to the common source, and a third terminal. The switch includes a Vgs detection circuit which provides the gate boost signal responsive to a conduction of current through the clamp circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.