We detect you are using an unsupported browser. For the best experience, please visit the site using Chrome, Firefox, Safari, or Edge. X
Maximize Your Experience: Reap the Personalized Advantages by Completing Your Profile to Its Fullest. Update Here
Stay in the loop with the latest from Microchip. Update your profile while you are at it. Update Here
Complete your profile to access more resources. Update Here
Cross-reference search

AN807

Download Application Note
Title
Title
Low-Cost DC Motor Speed Control with CMOS ICs
Name
Name
AN807
Date
Date
06/24/2015
Application Categories
Application Categories
Automotive / Body System
Product Categories
Product Categories
Power Management ICs / Power MOSFET Drivers
Description
Description
Two low-cost CMOS ICs manage a 12 VDC, current-limited speed control circuit for DC brush motors. The circuit design (see Figure 1) uses PWM (pulse width modulation) 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.