Two-stage isolated DC/AC conversion circuit structure
US8724356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A two-stage isolated DC/AC conversion circuit structure, consisting of a main switch, a second switch attached to a controller, another controller for controlling, and in work mode 1 and 2, after passing through the capacitor filter the low frequency half sine wave power is stored on this capacitor. After an inductor outputs the low frequency half sine wave power through this capacitor filter, it can respectively pass through the first and second transformers to increase the voltage, and then pass through the first and second secondary diode rectifiers, outputting the positive and negative half waves AC to the end user, and allow the end user to obtain the whole wave of the AC. Using the first and second diodes prevents outputting in reverse, and has the effect of isolation, and prevents all the stored energy for the later stage end user recharging to the front stage DC/AC conversion circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.