Full bridge power converter with multiple zero voltage resonant transition switching
US4953068A · kind A · utility
143Cited by
10References
2Claims
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Key dates
| Filing date | Nov 8, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Nov 8, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A full bridge switching power converter employs zero-voltage, resonant-transition (ZVRT) switching techniques which appreciably reduces the switching losses at high switching frequencies, (for example, 1 MHz and above), using constant frequency, pulse-width-modulation techniques. The converter is implemented using a transfer with four switching FET's coupled to the primary of the transformer and four switching FET's coupled to the output of the transformer and a control unit that supplies the constant waveforms necessary to achieve synchronization and timing required to achieve the ZVRT switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.