Flat Panel Display Principle and Driving Circuit Design

Flat Panel Display : Principle and Driving Circuit Design • Homework 3 – unit gain buffer amplifier – 1 persons in a group – Design an unit gain buffer amplifier for TFT-LCD source driver – Choose any type of buffer you like – Use H-SPICE with 0. 35 um high voltage MOSFET model in ‘l 35 uhv 12 v’ – Use a 5 -level RC load (R=2 KΩ, C=25 p. F) – Find open-loop gain, 3 -db bandwidth, unit-gain bandwidth, phase margin, CMRR – Find offset voltages of your buffer @ Vin=0~12 V, step=0. 5 V – Find the rising/falling times (10%-90%) and settling times (within ± 0. 2%)as 0 12 V and 12 V 0 V. You may use a square wave of 100 k. Hz as your input signal. – Calculate average power consumption @ Vin= 100 k. Hz square wave with 12 V swing – Calculate stand-by current consumption @ Vin= 0 V 94學年度(上) 1

Flat Panel Display : Principle and Driving Circuit Design • The homework must include: – Circuits – SPICE netlist file – Timing diagram (Vin/Vout) • Vout vs. Vin (Vin ：from 0 to 12 V, step 0. 5 V, 25 level) • Rising/falling times (10%-90%) and settling times (± 0. 2%) • Offset voltages for the 25 levels – Find open-loop gain, 3 -db bandwidth, unit-gain bandwidth, phase margin, CMRR – Calculate average power consumption – Calculate stand-by current consumption – Discussions ( and what you have learned) – References Please mail your report to fansen@dragon. nchu. edu. tw before 12/31 12: 00 (noon) Note: Do not e-mail from Yahoo-mail 94學年度(上) 2