LCR Electronics

Single Phase PWM Motor Controls

Our PWM motor controls are classic H-bridge drives used for single-phase variable frequency AC or variable-speed bidirectional DC applications.

The variable frequency AC drive is ideal where audible motor noise resulting from phase-cut drive is a problem. Typical applications for these drives are fans, blowers, pumps, conveyors and traction systems where AC induction (PSC) motors and DC brush motors are used.

Features for our Single Phase Controls:
  • Single, multiple or ranged voltage (85-265 VAC or 12-48 VDC)
  • Broad range of load current ratings
  • Two quadrant and four quadrant control
  • Over-current monitoring
  • Speed feedback for closed-loop precision
  • Custom user interfaces
  • Soft start, coasting and braking control
  • Operating temp -40 to 85 ºC and beyond
  • RoHS
  • CE compliant options including EMI
  • Quick time to market
  • Customized designs

LCR has developed easily-customized demonstration boards to reduce OEM project start-up time. Contact an LCR representative for information on how to obtain a sample.


EC104 data sheet

Data Sheet (PDF)

EC106 data sheet

Data Sheet (PDF)
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