Invention Grant
- Patent Title: Duty-cycle corrector phase shift circuit
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Application No.: US17538291Application Date: 2021-11-30
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Publication No.: US11611335B2Publication Date: 2023-03-21
- Inventor: Wei Shuo Lin
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Merchant & Gould P.C.
- Main IPC: H03K5/156
- IPC: H03K5/156 ; H03L7/095 ; H03L7/081

Abstract:
One embodiment of a duty-cycle corrector phase shift (DCCPS) circuit includes a voltage-controlled delay line circuit, a duty-cycle correct circuit, an error amplifier circuit, and DC sampler circuits. Another embodiment of a duty-cycle corrector phase shift circuit includes a digital-controlled delay line circuit, a duty-cycle correct circuit, DC sampler circuits, a comparator circuit, a counter circuit, a control circuit, and a lock detector circuit. In some instances, the DCCPS circuit provides a clock signal with a duty-cycle of approximately fifty percent (50%) and a given phase shift between an input clock signal and the output clock signal.
Public/Granted literature
- US20220360258A1 DUTY-CYCLE CORRECTOR PHASE SHIFT CIRCUIT Public/Granted day:2022-11-10
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