Battery charger circuit with low standby power dissipation
US6339314B1 · kind B1 · utility
43Cited by
18References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns an electronic circuit for reducing the current consumption of a transformer (1). This circuit comprises a control circuit in the secondary circuit of the transformer (1) and a switch (2), controlled by the control circuit, in the primary circuit of the transformer (1) for separating the primary circuit of the transformer (1) from the power supply (3). The control circuit comprises a detector (6) for detecting the no-load state of the transformer (1). If the transformer (1) is in the no-load state, the switch (2) on the primary side is opened at least temporarily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.