Load driving apparatus
US8159140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Sep 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3725
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal generating section generates a desired load current setting signal. The load current generating section generates a load current based on the load current setting signal to drive the load. The reference voltage generating section generates a reference voltage based on the load current setting signal. The drive voltage generating section generates a drive voltage, supplies the drive voltage to the load, generates a between-both-terminals voltage between both terminals of the load current generating section based on the drive voltage and controls the drive voltage so that the difference between the between-both-terminals voltage and the reference voltage becomes small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.