Circuit arrangement and method for controlling an electrical load
US7884654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jun 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement (10) for driving an electrical load (2) comprises an input (11) for feeding a power-supply voltage (Vs) with an AC component and an output (13) for providing an output signal (Sout) for driving a connectable electrical load (2). The circuit arrangement (10) further comprises a frequency processing circuit (20) for proving a reference frequency (f1) as a function of the AC component, and a demodulator (60) with a first input (61) for feeding the reference frequency (f1), with a second input (62) that is coupled to the input (11) of the circuit arrangement (10), and with an output (63) that is coupled to the output (13) of the circuit arrangement (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.