Driving device of semiconductor switch
US11095285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jul 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A driving device of a semiconductor switch includes a semiconductor switch configured to perform a switching operation by a gate driving voltage, and transfer a main power connected to a first switch terminal, to a load connected to a second switch terminal; a control signal generation circuit configured to detect a change in a control signal input power and generate and output a corresponding control signal, based on a lower negative voltage between negative voltages of the main power and the control signal input power; a control signal detection circuit configured to detect the control signal and output a corresponding driving control signal; a gate driving voltage generation circuit configured to be driven by the driving control signal and output the gate driving voltage; and an internal power generation circuit configured to be supplied with the main power, and generate a power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.