Automobile lighting pulse width modulation duty cycle control with voltage and temperature compensation
US7755303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2006 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jul 26, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automobile circuit includes a power source, a temperature sensor outputting temperature measurement data, a voltage sensor outputting system voltage measurement data, a voltage adjusting module configured to receive the temperature measurement data and the voltage measurement data, and responsive thereto, to output a pulse width modulation signal, a switch that is electrically coupled to the power source and to the voltage adjusting module, the switch being operable to receive the pulse width modulating signal and thereby regulate a duty cycle for voltage from the power source, and a lighting component coupled to receive the voltage from the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.