Invention Grant
US08174553B2 Apparatus and method for controlling power of laser diode having optical power compensation
有权
用于控制具有光功率补偿的激光二极管功率的装置和方法
- Patent Title: Apparatus and method for controlling power of laser diode having optical power compensation
- Patent Title (中): 用于控制具有光功率补偿的激光二极管功率的装置和方法
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Application No.: US13028479Application Date: 2011-02-16
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Publication No.: US08174553B2Publication Date: 2012-05-08
- Inventor: Jung-tag Gong , Goo-soo Gahang , Doo-jin Bang
- Applicant: Jung-tag Gong , Goo-soo Gahang , Doo-jin Bang
- Applicant Address: KR Suwon-Si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-Si
- Agency: Staas & Halsey LLP
- Priority: KR2003-82651 20031123
- Main IPC: B41J2/435
- IPC: B41J2/435
Abstract:
An apparatus includes an output voltage sensing unit, which senses an output voltage of a laser diode, which has been sampled during a power control period and transmits the sensed output voltage of the laser diode to an output voltage control unit; the output voltage control unit, which obtains an error voltage between a reference voltage and the sensed output voltage of the laser diode and generates a control voltage by proportionally integrating the error voltage; and an optical power compensation unit, which receives the control voltage and generates a compensated control voltage by compensating for an optical power deviation on the photosensitive drum during the printing period.
Public/Granted literature
- US20110135339A1 APPARATUS AND METHOD FOR CONTROLLING POWER OF LASER DIODE HAVING OPTICAL POWER COMPENSATION Public/Granted day:2011-06-09
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