Invention Grant
- Patent Title: Circuits and methods for level shifting a signal
- Patent Title (中): 用于电平移位信号的电路和方法
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Application No.: US13595496Application Date: 2012-08-27
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Publication No.: US08742790B1Publication Date: 2014-06-03
- Inventor: Pierte Roo , Talip Ucar
- Applicant: Pierte Roo , Talip Ucar
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03K19/00
- IPC: H03K19/00

Abstract:
A level shift circuit includes a first latch circuit configured to receive a clock signal, a digital data signal, a first supply voltage, and a second supply voltage, and generate a first output signal based on the digital data signal. The first output signal has a first voltage level corresponding to the first supply voltage, and a second voltage level corresponding to the second supply voltage. At least one capacitor is configured to receive the first output signal, and retain a voltage value corresponding to the output signal. A second latch circuit is configured to receive the voltage value, a third supply voltage, and a fourth supply voltage, and generate a second output signal based on the voltage value. The second output signal has a third voltage level corresponding to the third supply voltage and a fourth voltage level corresponding to the fourth supply voltage.
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