President
CurrentProduct Design and Development Engineering. From wish list to production. Particular focus is analog and digital hardware, PIC microcontroller applications including hardware and firmware. Designed LCD controller applications, A/D and PWM applications, lighting applications for triac and LED control, motor control for PWM speed and postion servo control, audio mixers, graphic equalizers, instrument amplifiers, PA amplifiers. Additional designs include EKG monitoring, electronic infection measurement, smart battery charging with positive slope cut-off, low battery cut-off controllers. There are many other designs and projects shown on the HEI WEb site. The link is http://RJHEINC.com