Mitigation of common mode disturbances in an H-bridge driver
US9525405B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jan 29, 2015 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jan 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/123
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for reducing common-mode disturbances during power-on and power-off modal transitions in a current driver includes providing a programmable current source operative to generate a current having a controllable rise-time and controlling the programmable current source such that a rise-time of the current generated by the current driver is set to a first rise-time value during power-on and power-off modes of operation and is set to a second rise-time value during polarity transitions in a data mode of operation of the current driver, the first rise-time value being greater than the second rise-time value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.