Abstract: A voltage regulating device for a power generating system with inverter circuits including two sets of switching elements each of which is alternately on-off controlled, having delay circuits for controlling delay time in accordance with the load voltage, and characterized in that supply voltage to the load is maintained at a constant level by forcibly turning off either set of the switching elements during the period when the said set of the switching elements are to be turned on.

Abstract: A low frequency, high output alternating current generating device comprising a high frequency generator having an output winding capable of generating a continuous wave high frequency output with an almost constant amplitude, a rectifying means for rectifying the high frequency output of the output winding, a plurality of condition control means for connecting the output of the rectifying means to a load by time-selectively and alternately reversing the polarity of the output, and a reference signal generating means for applying low frequency control signals to each of the conduction control means regardless of the phase of the high frequency output.

Abstract: An inductor-type high frequency generator with alternating current field excitation and frequency changing output means. An excitation winding provides current for the field winding by way of a rectifier, and automatic voltage regulator and an inverter. In response to generator output the A.V.R. controls the d.c. voltage fed to the inverter.