Power converter apparatus
US9231481B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0029
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter having reduced switching transients includes a conversion inductance, a pulse width modulation (PWM) controller, a conversion inductance, and a switch transistor. A low pass filter is connected between the PWM controller and the switch transistor to filter a PWM signal produced by the PWM controller and produce a filtered PWM signal. The switching transistor switches current through the conversion inductance responsive to the filtered PWM signal. The low pass filter filters out harmonic content of the PWM signal that is above the fundamental frequency in a way that maintains most of the harmonic content of the PWM signal to substantially eliminate higher harmonic elements which are conventionally responsible for transients across the conversion inductance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.