Three-channel high-side gate driver having startup circuit and configurable outputs
US9374006B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 24, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Oct 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driver circuit includes three non-contiguous high-voltage wells formed within a low-voltage monolithic silicon substrate; a high-side driver circuit fabricated within each of the wells; a separate logic input path for each of the high-side driver circuits, each input path comprising a logic signal input terminal, a signal amplifier, a noise filter, a pulse generator, and a high-voltage level shifter; an output terminal for each driver circuit, each output terminal coupled to its associated driver circuit output through a separate mask-configurable, variable-value output resistor bank, which reduces the number of external components needed for driver circuitry; a startup circuit which prevents operation of an associated high-side switch during periods of line voltage instability; and embedded capacitor banks, each of which is in close proximity to a high-side switch, for reducing capacitive, resistive and inductance losses associated with long metal lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.