Capacitively coupled floating gate driver
US7368957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Aug 19, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/691
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
High-performance low-power isolated bootstrapped gate drive apparatus and methods are disclosed for driving high-side and floating transistors. The gate drivers use edge-triggered capacitive-coupled inputs. The gate drivers may include detection and delay circuitry to facilitate zero-voltage-switching of the high side or floating transistor and providing more robust rejection of false triggering. A capacitively coupled differential input edge triggered gate driver provides exceptional immunity to false triggering. The gate drivers may be used in transformer coupled drive circuits using transformers that need only support coupled pulses wide enough to be recognized as an edge by the input circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.