Fixing device including a plurality of coils, coil drivers, and a drive circuit
US9098029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2013 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device which heats a heating object through induction heating by using a plurality of coils includes a plurality of coil drivers that drive the plurality of coils respectively, a drive circuit that controls ON/OFF states of a plurality of switching elements simultaneously to control the drive of the plurality of coil drivers, a control unit that controls a voltage supplied to each of the plurality of coils in accordance with the control of the ON/OFF states of the plurality of switching elements by the drive circuit, and a plurality of voltage control circuits that individually change the voltages supplied to the plurality of coils in accordance with the voltage control of the control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.