Controlled power supply circuit
US9570997B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2012 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply circuit for supplying power to at least two loads which are connected to said power supply circuit comprises a current source which can be operated in a clocked manner and has a control input for adjusting the power. At least two load strings are connected in parallel between a power supply connection, which is coupled to the current source, and a reference connection. Each load string has a load and charge storage means which is connected in parallel with the load. A switch is used to selectively switch the current path of the load string. A sensor having a sensor resistor which is connected in the current path of the load string is used to detect a current flowing through the connected load string. Furthermore, the controlled power supply circuit comprises a control circuit which is coupled to the switch and to the sensor of each load string for the purpose of activating each load string in a time-multiplexed manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.