Input voltage selecting auxiliary circuit for power converter circuit
US11552543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuits and methods encompassing a power converter that can be started and operated in a reversed unidirectional manner or in a bidirectional manner while providing sufficient voltage for an associated auxiliary circuit and start-up without added external circuitry for a voltage booster and/or a pre-charge circuit—that is, with zero external components or a reduced number of external components. Embodiments include an auxiliary circuit configured to selectively couple the greater of a first or a second voltage from a power converter to provide power to the auxiliary circuit. Embodiments include an auxiliary circuit configured to select a subcircuit coupled to the greater of a first or a second voltage from a power converter to provide an output for the auxiliary circuit. Embodiments include a charge pump including a gate driver configured to be selectively coupled to one of a first voltage node or second voltage node of the charge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.