Switching element driver IC and switching element driver device equipped with the same
US8922258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching element driver IC has one or more photocouplers, a driver circuit, a detection circuit and a setting circuit. The photocoupler receives setting data transmitted from a microcomputer, and transmits the received setting data to the setting circuit, wherein an input side as a high voltage side is electrically insulated from an output side as a low voltage side in the photocoupler. The setting circuit transmits the setting data to the driver circuit and the detection circuit. The driver circuit and the detection circuit operate on the basis of the received setting data. The setting data can be provided to the driver circuit and the detection circuit through the photocoupler and the setting circuit. This structure makes it possible to suppress increasing the number of terminals at the high voltage side of the switching element driver IC, and decrease the entire size of the switching element driver IC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.