Pulse Width Modulation (PWM)
Optimal Engineering Systems Electromate Inc. maxon precision motors inc PI (Physik Instrumente) L.P. MotiCont Servo2Go.com DINGS Advanced Micro Controls Inc TRINAMIC Motion Control ams USA Inc. Aerotech, Inc QuickSilver Controls Inc. Basicmicro Sensitron Semiconductor
Pulse Width Modulation (PWM) drive amplifiers are referred to as class D amplifiers. To be clear the D does not denote digital as PWM drives may have characteristics of both digital and analog devices with respect to electronic signals. PWM drives typically have a smaller footprint, a primary advantage, but are inherently more complex in their electronic pulse, requiring more detailed set-up than analog drives or digital drives.