Erick Betancourt

US Patent:

20130027832, Jan 31, 2013

Filed:

Jul 26, 2012

Appl. No.:

13/559198

Inventors:

Erick Betancourt - Carlsbad CA, US

International Classification:

H01H 47/32

US Classification:

361190

Abstract:

The devices and methods described below provide for a high voltage control circuits using commercial lower voltage, and lower cost, relays. A low voltage control system using commercial switching relays is used to control and switch an isolated low voltage power supply through an isolation layer. The isolated low voltage power supply is used to drive commercial switching relays that control the high voltage power applied to the high voltage load. Adding the isolated low voltage power supply controlled through an isolation layer enables the use of commercial low voltage components to switch high voltage power such as 347VAC without violating Underwriters Laboratories spacing or testing requirements.