Battery heating circuits and methods with resonance components in series using energy transfer and voltage inversion
US8841883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | May 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuit and method for heating a battery. The circuit includes the battery including parasitic damping and current storage components, switch unit, switching control component, charge storage component, and energy transfer and superposition unit. The charge storage and current storage components are parts of an energy storage circuit. The switching control component turns on the switch unit so as to allow current to flow between the battery and charge storage component and turns off the switch unit so as to stop the current. The energy transfer and superposition unit, after the switch unit is turned on and then off, transfers energy from the charge storage component to an energy storage component and then adjusts a storage voltage associated with the charge storage component so that a positive voltage terminal of the charge storage component is coupled, directly or indirectly, to a negative voltage terminal of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.