Safe quick disconnect leakage protector
US9219360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2011 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Aug 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a safe quick disconnect leakage protector, including a power supply circuit, a sampling circuit, a couple of single-pole single-throws, an on and off control circuit, and a testing circuit. The sampling circuit collects the leakage current signal between the live wire and the neutral wire and outputting the leakage current signal; the main control circuit receives the leakage current signal outputted from the sampling circuit, amplifies the leakage current signal, and outputs a grounding failure control signal when the leakage current reaches the predetermined value; the on and off control circuit receives the grounding failure control signal outputted from the main control circuit and controls the single-pole single-throw switches to disconnect the load from the external power supply according to the grounding failure control signal, thereby protecting the load and improves the safety of the leakage protection of an electrical appliance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.