Phase shifted H-Bridge resonant converter with symmetrical currents
US7817452B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A phase shifted H-bridge resonant converter with symmetrical currents includes, a DC storage cap (31), four switches (1-4) with a parallel turn off network consisting of diodes (5-8), capacitors (9), (11), (14), (16), resistors (10), (12), (13), (15). The subsequent output of switches (1-4), is arranged in series with DC blocking caps (17-18), connected to a low mutually coupled inductor (32), an AC resistive load, capacitor (19), resistor (20) across inductor (32), with capacitors (22), (23) that comprise a resonant tank circuit, and is connected to the primary of transformer (21) wherein the interaction between the two coils of the low mutually coupled inductor (32) provides symmetrical currents within the switches and resonant tank circuit. Further, output rectification may be arranged by use of secondary winding of transformer (21), diodes (24-27), filter inductor (28), filter capacitor (29), and load resistor (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.