Russell W Stevens

US Patent:

8482894, Jul 9, 2013

Filed:

Mar 21, 2011

Appl. No.:

13/053084

Inventors:

Pablito B. Yra - Union City CA, US
Pierre Irissou - Sunnyvale CA, US
Mathieu Sureau - San Francisco CA, US
David Truong - San Jose CA, US
Russell Stevens - San Jose CA, US

Assignee:

Space Systems/Loral, LLC - Palo Alto CA

International Classification:

H02H 9/08

US Classification:

361 939

Abstract:

A load current is limited to a safe level with a current protection logic circuit within a first selected interval after detection of a fault condition. The current protection logic circuit returns the load current to a normal level within a second selected interval after correction of the fault condition, wherein said safe level is less than one half of the normal level. The current protection logic circuit is a feature of a high side driver comprising at least two source drivers, each source driver being configured to switch an electrical load to a common power supply, and comprising a respective current protection logic circuit.