Critical Velocity Enterprises, LLC High Frequency PWM MotorSpeedController SPD-328

Control the speed of a DC motor using a 1k, 5k, 10k or 25k potentiometer. This controller features a silent PWM switching frequency for use in noise-sensitive applications. It can also be used as a low voltage light dimmer for halogen lamps, or for controlling heaters and irons. This controller operates in the same way as the SPD-2115B-E controller but due to the high frequency switching, there is no audible PWM noise. The higher frequency also allows for smoother current in the motor and a higher system efficiency. Automatic Soft-Start is available on P/N SPD-328-S. The Soft-Start option slowly ramps up power to reduce stress on power supplies and mechanical linkages. Features: Silent PWM switching frequency for quiet operation Use any 1k, 5k, 10k or 25k pot for control Digital input filtering allows smooth control even with dirty pots Logic Controller Enable input Low Impedance, Long Life filter capacitor for maximum reliability High efficiency MOSFET design and Heavy-Duty Heatsinks for cool operation Specifications: 28 Amps continuous current 5.5 - 30 VDC operation 20 kHz switching frequency PWM Range: 0% - 100% Single direction (no reverse) Connections: Terminal blocks for signal and power connections