Solid state fail-safe control of an AC load utilizing synchronous switching

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6108220
SERIAL NO

09027378

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The vital driver utilizes rectification and subsequent synchronized inverting of the rectified power, which is then fed to a transformer. Failed operation, which permits current having a DC component to reach the load transformer, causes an increase in the current which is sensed by a current sensor. The high current can be detected by a fuse. Some embodiments use primary modules having a rectifier section with sufficient power to run a number of secondary units, each powering an individual load. The synchronizing inverter can utilize optically coupled solid state switches.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UNION SWITCH & SIGNAL INCP O BOX 420 PITTSBURGH PA 15230

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Franke, Raymond C Glenshaw, PA 15 204

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation