The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2007
Filed:
Sep. 09, 2003
That Nguyen, Mississauga, CA;
That Nguyen, Mississauga, CA;
Honeywell International Inc., Morristown, NJ (US);
Abstract
A solid state power controller (SSPC) () includes a power switching controller () and power switching devices (PSDs) (A,B,C) for controlling each phase of a multiple-phase load to switch-on or -off at a zero-crossing point of a corresponding phase of a multiple-phase power source. The power switching controller () may include an ASIC (A,B,C) for controlling each PSD (A,B,C) to switch the corresponding load phase on or off. The ASIC (A,B,C) may be configured to control the PSD (A,B,C) to switch-on the load phase at a detected zero-crossing point of the voltage supplied by the corresponding phase of the power source, and to switch-off the load phase at a detected zero-crossing point of the load current supplied by the corresponding phase of the power source.