Description

Elmo SBA-10/100H Simple Type: Amplifier The SBA is a miniature PWM, full wave, three phase servo amplifier designed for high performance brushless servo motors in the range of up to 0.7KW. It utilizes power MOSFETs and Surface Mounting Technology which contribute to its high efficiency and compact design. The SBA is constructed from two PCBs mounted on a heat sink plate. The lower board contains the power switching transistors which drive the motor, terminals for the power stage, the switch mode power supply and the protection logic. The upper PCB contains the control logic, commutation logic, terminals for the control stage, adjusting trimmers and indication LED's. An optional third board is installed for velocity sensors others than a brush type tacho.