GATE DRIVER AND RELATED CIRCUIT BUFFER

摘要

A circuit buffer for outputting a voltage signal having a magnitude greater than a withstand voltage of any circuit element in the circuit buffer includes a first transistor and a second transistor. The first transistor includes a first terminal and a second terminal electrically connected to an input terminal and an output terminal of the circuit buffer respectively, a third terminal electrically connected to a first power supply terminal, and a fourth terminal electrically connected to the third terminal of the first transistor. The second transistor includes a first terminal and a second terminal electrically connected to the input terminal and the output terminal of the circuit buffer respectively, a third terminal electrically connected to a second power supply terminal, and a fourth terminal electrically connected to the third terminal of the second transistor. Voltages of the first and second power supply terminal are switched between two different levels, respectively.

主权项

1. A circuit buffer, for outputting a voltage signal, the circuit buffer comprising:
a first transistor, comprising:
a first terminal, electrically connected to an input terminal of the circuit buffer;a second terminal, electrically connected to an output terminal of the circuit buffer, wherein the output terminal is utilized for outputting the voltage signal;a third terminal, electrically connected to a first power supply terminal; anda fourth terminal, electrically connected to the third terminal of the first transistor; and a second transistor, comprising:
a first terminal, electrically connected to the input terminal of the circuit buffer and the first terminal of the first transistor;a second terminal, electrically connected to the output terminal of the circuit buffer and the second terminal of the first transistor;a third terminal, electrically connected to a second power supply terminal; anda fourth terminal, electrically connected to the third terminal of the second transistor; wherein a voltage of the first power supply terminal is switched between a first voltage level and a second voltage level, a voltage of the second power supply terminal is switched between a third voltage level and a fourth voltage level, the first voltage level is greater than the second voltage level, the third voltage level is greater than the fourth voltage level, and an amplitude of the voltage signal is greater than a withstand voltage of any circuit element in the circuit buffer.