Patent · US Active

Precision ground fault detection for aircraft human body protection

US8023236B2 · kind B2 · utility

2Cited by

14References

15Claims

0Family size

Assignee

Hamilton Sundstrand Corporation (HSC) · US

Inventors

Markus Greither · Augsburg, DE
Gerd Michael Kluger · Sinsheim, DE

Key dates

Filing date	Mar 18, 2009
Grant date	Sep 20, 2011
Priority date	—
Expiry date	Mar 11, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02H3/347
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power supply system for use with a component comprises at least three phases of power supply, with each of said three phases passing through a solid state power controller having an on/off switch. Each of the phases of power pass through a current sense transformer. A ground fault circuit receives an outlet from the current sense transformer. The ground fault circuit includes an analog filter connected into a digital processor. An output of the digital processor is operable to control the switches on the solid state power controllers. The three phases distribute power to the component when the switch on their associated solid state power converter is on.

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