Title :
An Application of Pulse Modulation to Power Supply Miniaturization
Author :
Calkin, E. MT ; Judd, F.F.
Author_Institution :
Bell Telephone Laboratories, Inc., Whippany, N. J.
Abstract :
A significant improvement in the miniaturization of an a-c to d-c power supply has been achieved by a circuit which combines pulse-amplitude and pulse-duration modulation to provide constant area pulses. The modulation is obtained in an inverter-regulator circuit which employs a saturating 2-core high-frequency transformer and gate turn-off semiconductor switches. The principal contributions to miniaturization are the elimination of the 60-cycle power transformer and the reduction in size of the filter circuit components.
Keywords :
Circuit faults; Fourier series; Frequency conversion; Power system reliability; Power transformers; Pulse circuits; Pulse inverters; Pulse modulation; Pulse transformers; Pulsed power supplies;
Journal_Title :
Applications and Industry, IEEE Transactions on
DOI :
10.1109/TAI.1964.5407715
