AN807: Low-Cost DC Motor Speed Control Application Circuit with CMOS IC

AN807 Low-Cost DC Motor Speed Control Circuit with CMOS IC manage a 12 VDC, current-limited speed control circuit for DC brush motors. The circuit design uses PWM to chop the effective input voltage to the motor. Use of CMOS devices gives the benefits of low power, minimal heat and improved longevity. The overall design is simple, inexpensive and reliable and is useful in applications such as embedded DC motor control where efficiency, economy and performance are essential