Invention Grant
- Patent Title: Power voltage generator and display device having the same
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Application No.: US17827862Application Date: 2022-05-30
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Publication No.: US11632046B2Publication Date: 2023-04-18
- Inventor: Kyun Ho Kim , Jung-taek Kim , Joon Suk Baik , Sang Su Han , Jae Woo Ryu , Myung Ho Lee
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-Si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-Si
- Agency: Innovation Counsel LLP
- Priority: KR10-2019-0120953 20190930
- Main IPC: H02M3/156
- IPC: H02M3/156 ; H03F3/14

Abstract:
A power voltage generator includes a booster, a voltage sensor, a constant voltage controller and a constant current controller. The booster is configured to boost an input voltage to an output voltage based on an on-off operation of a switch. The voltage sensor is configured to generate a sensing voltage by sensing the output voltage. The constant voltage controller is configured to generate a first switching signal to control the switch by comparing the sensing voltage with a reference voltage. The constant current controller is configured to generate a gain based on a ratio of an electrode signal of the switch and a target signal by comparing the electrode signal of the switch with the target signal.
Public/Granted literature
- US20220294342A1 POWER VOLTAGE GENERATOR AND DISPLAY DEVICE HAVING THE SAME Public/Granted day:2022-09-15
Information query
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