Honorable Mention

CPU-Controlled Inverting Switcher for LCD Backplane
Based on the HD64F2398F20 microcontroller from the 2398 H8S Starter Kit, this system provides a low-cost way to generate a negative LCD power supply. The system is especially useful for applications that involve LCDs because it can delay the application of the LCD backplane voltage after power-up. The microcontroller’s high-speed on-board ADC coupled with a simple control loop enable the system to use minimal CPU resources, freeing the CPU for other tasks. Additionally, the power supply is regulated, temperature-compensated, and can be adjusted via software.

Romano Bernarducci
Italy
r_bernarducci@yahoo.com

Abstract | Entry