ABSTRACT
The Constant-Voltage Transformer has a wide application, particularly where reliability and inherent regulating ability against line voltage changes are of prime importance. The output of a Constant-Voltage Transformer is essentially a square wave, which is desirable for rectifier output applications while, also having good circuit characteristics. The equations presented for designing a Constant-Voltage Transformers at line frequency have been used at 400Hz on aircraft, and as high as 20kHz. The magnetic material used to design transformer, T1, has an impact on line regulation. Transformers designed with a square B-H loop will result in better line regulation. If the output of the line regulator is subjected to a load power factor with less than unity, the output will change. The regulation of a Constant-Voltage Transformer can be designed to be better than a few percent. Capability for handling a short circuit is an inherent feature of a Constant-Voltage Transformer.
