Patent ID: 6876103

Claim:
An automatic transfer switch controller comprising: at least one transformer to convert power from utility and generator power sources into power supply voltages for powering said controller and into voltages to be sensed by said controller; a power supply circuit to regulate and filter signals from said transformer; a solenoid driver circuit to drive automatic transfer switch solenoids that are configured to facilitate a supply of power from one of said utility and generator power sources; an embedded microcontroller configured to control logic functions and to monitor voltages from said utility and generator power sources; a voltage sense signal conditioning circuit for filtering signals provided to said microcontroller, wherein at least two of said microcontroller, solenoid driver circuit and voltage sense signal conditioning circuit are located on a control circuit board; a user interface operationally coupled to said microcontroller for operator entry of instructions; and at least one LED indicator interfaced to said microcontroller to indicate operator entry of instructions at said user interface.