Self protecting pre-charge circuit
US8766602B1 · kind B1 · utility
21Cited by
13References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jul 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charging system includes a pre-charge control circuit for electrically coupling a plurality of power supply terminals to a plurality of load terminals. The pre-charge control circuit includes a plurality of switching elements for selectively coupling at least one of the plurality of power supply terminals and one of the plurality of power supply using one of a pre-charge current path and a standard charge current path. The pre-charge current path includes at least one pre-charge resistor in series with a positive temperature coefficient (PTC) resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.