Variable Frequency AC Power Supply 1.50Hz, 60Hz, adjustable between 45 and 70 Hz, ... .Phase Voltage Range: 0~300V, 0-150V Variable Frequency AC Power Supply Specification:• Circuit Type: (IGBT) MPWM Pulse Duration Modulation• Input ... -digist RMS digital ampere meter, resolution 1Ma Power Indicator, 4-digits RMS digital power indicator, resolution 1W Power Factor Meter Resolution 0.001• Protective ...