Power supplies for driving H-bridges
US7292087B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2006 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Apr 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/1008
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus includes an integrated circuit that includes low side power supply circuitry that provides an output voltage for H-bridge circuitry. The low side power supply circuitry includes one transistor that provides one current to the output of the low side power supply circuitry in response to the output voltage of the low side power supply circuitry dropping below a quiescent level. The low side power supply circuitry also includes a second transistor that controls the conduction state of a third transistor, based at least in part, upon the first transistor providing the first current to the output of the low side power supply circuitry. The third transistor provides a second current to the output of the low side power supply circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.