Accession Number : ADD003827

Title :   Variable Input Power Supply.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Johnson,Leopold J

Report Date : 15 Feb 1977

Pagination or Media Count : 7

Abstract : An electronic power supply using pulse width modulated (PWM) voltage regulation provides a regulated output for a wide range of input voltages. Thus, the invention apparatus is very versatile and many different types of equipment may be interchangeably used with it. The apparatus employs a control switch to change the level of voltage regulation and the turns ratio of the primary winding of the power supply output transformer, thereby obtaining increased tolerance to input voltage change. (Author)

Descriptors :   *Patents, *Power supplies, Pulse modulation, Electronic equipment, Voltage, Transformers, Voltage regulators

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE