Pulse Width Modulation (PWM)
maxon precision motors inc TRINAMIC Motion Control MotiCont Optimal Engineering Systems Electromate Inc. PI (Physik Instrumente) L.P. Servo2Go.com DINGS Advanced Micro Controls Inc 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.