Patent · US Expired

Direct current power controller

US4404473A · kind A · utility

28Cited by
4References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 17, 1981
Grant dateSep 13, 1983
Priority date
Expiry dateDec 17, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02H9/025
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A direct current power controller for use in electrical control systems such as aircraft control circuits. The controller utilizes a field effect transistor (FET) as the switching element. A bias voltage supply circuit powers a gate driving circuit, current limiting circuit, and trip indicating circuit. Gate driving circuitry is not directly connected to the system ground, thus minimizing load interference with controller performance and eliminating the need for level shifting circuitry. Remote control circuitry is provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.