A Low-Power Single-Input Level Shifter for Oxide Thin-Film Transistors

作者：Kim Sang Yeon^*; Kim Joon Dong; Kim Yeon Kyung; Lym Hong Kyun; Kim Jin Tae; Oh Hwan Sool; Pi Jae Eun; Ryu Min Ki; Hwang Chi Sun; Park Sang Hee Ko; Yu Byoung Gon; Park Kee Chan

来源：Journal of Display Technology, 2013, 9(2): 71-73.

DOI：10.1109/JDT.2012.2237159

• Level shifter
• low-power
• negative threshold voltage
• oxide thin-film transistor (TFT)

A new level shifter circuit suitable for implementation using n-channel oxide thin-film transistors (TFTs) is reported. This level shifter is designed to convert a single 10 V input signal into a 20 V output signal. In order to raise the output voltage up to V-DD in spite of the large zero-V-GS current of the oxide TFT, negative V-GS is applied to the pull-down TFTs. Simulation and fabrication results show that the level shifter operates correctly with oxide TFTs and that the power consumption is as low as 0.2 mW at an input signal frequency of 10 kHz.

• 出版日期2013-2