Device and method for producing a dynamic reference signal for a driver circuit for a semiconductor power switch
US10171071B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jun 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/163
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device (442) for producing a dynamic reference signal (UREF) for a control circuit for a power semiconductor switch comprises a reference signal generator (442) for providing a dynamic reference signal (UREF), which has a stationary signal level after elapse of a predefined time following a switching process of the power semiconductor switch, a passive charging circuit (450) which is configured to increase a signal level of the dynamic reference signal in reaction to a switching of a control signal of the power semiconductor switch from an OFF state to ON state for at least one part of the predefined time above the stationary signal level, in order to produce the dynamic reference signal and an output (A) for tapping the dynamic reference signal (UREF).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.