Invention Grant
- Patent Title: Temperature estimation of step motor based on sensing voltage thereof
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Application No.: US17269073Application Date: 2019-08-12
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Publication No.: US11431277B2Publication Date: 2022-08-30
- Inventor: Ji-Young Byun , Yong-Ho You , Hyoungil Kim
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: Jefferson IP Law, LLP
- Priority: KR10-2018-0107612 20180910
- International Application: PCT/US2019/046118 WO 20190812
- International Announcement: WO2020/055531 WO 20200319
- Main IPC: H02P29/66
- IPC: H02P29/66 ; G03G15/00 ; H02P8/36 ; H04N1/23

Abstract:
An image forming apparatus and an image forming method are provided. The image forming apparatus includes a printing engine to form an image, a step motor to drive the printing engine, a driving circuit to provide a constant current to the step motor and sense a voltage corresponding to a magnitude of the constant current provided to the step motor, and a processor to calculate a temperature of the step motor based on the voltage sensed by the driving circuit during an excitation period of the step motor and control an operation of the image forming apparatus based on the calculated temperature.
Public/Granted literature
- US20210175838A1 TEMPERATURE ESTIMATION OF STEP MOTOR BASED ON SENSING VOLTAGE THEREOF Public/Granted day:2021-06-10
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