HIGH SPEED DIFFERENTIAL LEVEL SHIFTER AND THE BOOT STRAP DRIVER INCLUDING THE SAME

摘要

PURPOSE: A high speed differential level shifter and a bootstrap driver for including the same are provided to steadily control the input output voltage by forming the level shifter and bootstrap driver into the differential amplification structure of second stage. CONSTITUTION: A first differential amplifier unit(310) differentially amplifies the PWM signal and the PWM signal making a reverse turn. The first differential amplifier unit outputs a first differential amplification voltage and a second differential amplification voltage based on the amplified result. A second differential amplifier unit(320) differentially amplifies the first differential amplification voltage and the second differential amplification voltage. The voltage having the power range between the first voltage based on the result that the second differential amplifier unit is amplified and the second voltage is outputted. The first differential amplifier unit comprises a pair of first differential transistors and loader.