Invention Grant
- Patent Title: Current mode digitally variable resistor or programmable VCOM
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Application No.: US15696043Application Date: 2017-09-05
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Publication No.: US10741142B1Publication Date: 2020-08-11
- Inventor: Alberto Giovanni Viviani , ChinFa Kao , Chiayao S. Tung
- Applicant: IML International
- Applicant Address: KY Grand Cayman
- Assignee: IML International
- Current Assignee: IML International
- Current Assignee Address: KY Grand Cayman
- Agency: Aka Chan LLP
- Main IPC: H03K3/00
- IPC: H03K3/00 ; G09G3/36 ; H03K3/012

Abstract:
One or more resistors or resistances are integrated in a 7-bit DVR or PVCOM integrated circuit. A 7-bit DVR or PVCOM integrated circuit includes a 7-bit DAC. The integrated resistors or resistances (R1, R2, or RSET, or any combination) reduces the number of external components, reduces the number of pins, and increases the accuracy of the DVR or PVCOM circuit. The least significant bit (LSB) of the DAC depends only on ratios of internal resistors, which can be made very accurate and independent of temperature.
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