Control system for a wireless power switch without a neutral wire
US10008351B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2015 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Sep 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J13/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for a wireless power switch without a NEUTRAL wire comprises a wireless controlled power switch with both terminals connected between a LINE wire and a switch wire of a switch box without the NEUTRAL wire; a power acquiring device having two power input terminals respectively connected to the LINE wire and the switch wire of the switch box; and a wireless automation control device receiving an output voltage of the power acquiring device as the required power, the wireless automation control device controlling open or close of the wireless controlled power switch according to wireless control signal wirelessly. Specifically, a load device is connected between the switch wire and the NEUTRAL wire, and impedance between the two power input terminals of the power acquiring device is substantially larger than impedance of the load device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.