Balanced current converter with multiple pulse width modulated channels
US6674325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A balanced current converter with multiple PWM converter channels has an error amplifier, a main converter channel and at least one parallel converter channel. The converter provides a DC power output and feeds back an average output voltage signal. The error amplifier compares a reference voltage signal and the average output voltage signal to generate an error signal. The main converter channel outputs a main channel current signal and a main channel power output according to the error signal. The parallel converter channel compares the main channel current signal and the respective parallel channel current signal to generate a first deviation signal, then compares the first deviation signal and the error signal to generate a second deviation signal. The parallel converter channel provides and measures a respective parallel channel power output to feed back the respective parallel channel current signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.