INTRODUCTION
   For small-motor applications many appliance designers favor modern three phase brushless DC motors because of the high efficiency (as great as 95%) and small size for a given delivered power. Designers have to handle control logic, torque and speed control, power-delivery issues and ensure safe operation in every load condition. The L6235 is a highly integrated, mixed-signal power IC that allows to easily design a complete motor control system for BLDC motor. Figure 1 shows the L6235 block diagram. The IC integrates six Power DMOS, a centralized logic circuit to decode hall effect sensors and a constant tOFF PWM current control technique (Synchronous mode) plus other added features for safe operation and flexibility