The 235DS-1LP14-000 is a high voltage, monolithic three-phase, full wave AC line commutated brushless DC motor controller manufactured by Etritek Corporation. It is part of their series of controllers designed to work in conjunction with Hall effect sensors and can control the speed and torque of brushless three-phase motors up to 30 amps at 24 to 400 Volts. The 235DS-1LP14-000 provides an adjustable dead time with frequency dithering to reduce the acoustic noise generated by the motor, open loop or closed loop speed control, and a wide range of operation and protection features to maximize performance and reliability.