Converter

USH335H · kind H · statutory invention registration

Assignee

• The Government of the United States, as Respresented by the Secretary of the Army · US

Inventors

• Walter E. Milberger · Severna Park, US
• Donald C. Lewns · Severna Park, US
• David Everett Bulgher · Gambrills, US

Key dates

• Grant date: Sep 1, 1987

Classification

• Technology area (CPC —): General

Abstract

An electrical power converter comprising two current-fed square wave chops the outputs of which are combined and rectified to yield a variable and regulated output voltage. The phase relationship of the choppers are varied to achieve output voltage control and regulation. The chopper outputs are combined in such a way that the choppers never experience the open-circuit inductance of their output transformers. This enhances frequency agility. A novel choke feed system is provided in which the choke flyback energy is absorbed and then transferred to the input of the other chopper.