VARIABLE SPEED LATCHING MOTOR CONTROL

摘要

A solid-state motor power control (40) for portable paint pumps having a MOSFET power control device (50) operated from a solid-state electronic control circuit wherein the control circuit utiliz es an operational amplifier (62, 68) to selectively operate as a switch driver in a first state and as a linear gain amplifier (62) in a second state. The solid-state control circuit has compensation means for compensating the MOSFET (50) for motor load variations in a pump motor (44) connected to the output of the solid state motor power control (40).