Drop power supply circuit
US8497665B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Apr 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A capacitor drop power supply circuit for supplying power to a load has a switch configured to alter a configuration of the power supply circuit to reduce input current of the power supply circuit. The switch is operable by the load to alter the configuration when the load enters a power save mode. The switch is operable to alter the configuration of the power supply circuit between a first configuration having a first current path through the power supply circuit in a first current direction, and a second configuration having a second current path through the power supply circuit in the first current direction. The switch changes the power supply circuit between the first configuration and the second configuration when the load enters a power save mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.