Invention Grant
- Patent Title: Triac driving circuit and fixing apparatus having resistive elements in series with different characteristics for circuit protection
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Application No.: US16259840Application Date: 2019-01-28
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Publication No.: US10433380B2Publication Date: 2019-10-01
- Inventor: Yusuke Nakashima , Takao Kawazu , Tetsuya Yamamoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2018-015195 20180131
- Main IPC: G05F5/06
- IPC: G05F5/06 ; H05B33/08 ; H02M5/275
Abstract:
A triac driving circuit according to an embodiment of the present disclosure includes a phototriac coupler, a first resistive element, and a second resistive element, which are connected in series to a gate terminal of a triac. A minimum resistance of the first resistive element including tolerance is higher than a maximum resistance of the second resistive element including tolerance.
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