PF1352 USER MANUAL REV A 12/21/15
SECTION ONE
INTRODUCTION
1.0
The Behlman PF series of AC power supplies are designed to provide regulated AC
power at frequencies and /or voltages not available from local utilities. All models are
completely solid state, PWM switching types that provide high efficiency and overall
reliability. These devices require very little maintenance and will provide years of trouble
free service when used within their ratings. The models in this series include an active
power factor correction circuit to reduce input harmonics associated with the conversion
process used. These models are housed in an all steel, EIA rack mountable enclosure.
The block diagram below illustrates the conversion process performed by this
equipment. AC power is applied and converted to DC by an active power factor
corrected boost converter. This DC is then used to provide raw power for a class D
amplifier. The amplifier is driven from a reference signal at the desired output frequency.
The resulting amplified signal is applied to a step-up transformer to provide both
isolation and the desired output voltage. Short circuit protection and current limit are
performed by the control electronics.
