Three-way switch for home automation apparatus and method

Details Three-way switch for home automation apparatus and method Three-way switch for home automation apparatus and method

Category

H - Electricity

Subcategory

01

Subsubcategory

H

IPC codes

H01H 9/54 (2006.01) H01H 9/56 (2006.01) H01H 47/00 (2006.01) H04B 1/38 (2006.01)

Type

Patent

Patent number

CA 2707873

Description

A switch for premises electrical circuits provides wireless control compatible with at least one home automation control system technology. A. single switch design can operate two-, three-, and four-way circuits without alteration, and without recourse to coordinating remote switches. The switch includes processor functions for restoring a previous state after power interruption, and for establishing a state commanded during the power interruption. The switch uses two single-pole, single-throw relays for positive safety lockout, and adjusts relay actuation timing with reference to power waveform zero-crossing for contact are reduction with inductive, tungsten, and capacitive loads.

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