Level Shift Circuit

The level shift circuit addresses high-speed and low-power consumption challenges by using differential signaling and capacitive boosting, ensuring transistor safety and efficiency.

JP7804552B2Active Publication Date: 2026-01-22KK TOSHIBA +1
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Patent Information

Application Number
JP2022148419
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-09-16
Publication Date
2026-01-22
Estimated Expiration
2042-09-16

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Abstract

To provide a level shift circuit that achieves both high-speed operation and low current consumption.SOLUTION: A level shift circuit comprises a first impedance, a second impedance, a first transistor, a second transistor, a current source, and a first capacitor. The first impedance has a first end connected with a positive side power supply voltage. The second impedance has a first end connected with the positive side power supply voltage and outputs an output signal from a second end. The first transistor has a control terminal for receiving an input signal and a first end connected with a second end of the first impedance. The second transistor has a control terminal for receiving a differential signal of the input signal, a first end connected with the second end of the second impedance, and a second end connected with the second end of the first transistor. The current source has a first end connected with the second end of the first transistor and a second end connected with a negative side power supply voltage. The first capacitor has a first end connected with the second end of the second impedance and a second end for receiving a signal with the same phase as the input signal.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Semiconductor integrated circuit

    JP1991201117A

  • Level shift circuit, signal driver using it, display device and semiconductor device

    JP1999177409A

  • Latch circuit, shift register circuit, and picture display device

    JP2000187994A

  • Micro power RC oscillator

    JP2002033644A

  • Level shift circuit

    JP2006019815A