Bootstrap driver
US7046040B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jul 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/01714
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A bootstrap driver comprises an output stage having an N-type high-side transistor and a low-side transistor, also of the N-type, which are arranged in series between a positive supply terminal and a negative supply terminal. A control circuit of the high-side transistor and a control circuit of the low-side transistor are respectively supplied by a first voltage regulator and a second voltage regulator, which are mutually independent. A recovery diode is connected by its anode to the output of the first voltage regulator and by its cathode to the positive supply terminal, in order to conduct the reverse current of a bootstrap diode when the output of the circuit switches from a low state to a high state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.