Method for operating an H-bridge drive utilizing a pair of high and low side MOSFETS
US7465610B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Aug 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fully protected H-bridge for a d-c motor consists of two high side MOSFETs and a control and logic IC on a first conductive heat sink all within a first package and two discrete low side MOSFETs. The entire bridge is controlled by the IC. Shoot thru protection is provided for each leg, and a PMW soft start sequence is provided through the control of the low side MOSFETs, programed by an external, chargeable RC circuit. Input signals to the high side MOSFETs select the operation modes. Protective circuits are provided for short circuit current and over current conditions. Sleep mode and braking/non braking control is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.