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Relay-based foolproof circuit for over-voltage protection
US9401604B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9401604-B2 |
| Application number | US-201414313487-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 24, 2014 |
| Priority date | Apr 2, 2014 |
| Publication date | Jul 26, 2016 |
| Grant date | Jul 26, 2016 |
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Abstract
Official abstract text for this publication.
The present invention provides a relay-based foolproof circuit for over-voltage protection, which is electrically connected between a plug and an electric device, and includes a relay having at least one magnetic core, a coil wound around the magnetic core and two reed switches each having a reed and being normally in a closed state because of the elastic effect of its reed. The relay-based foolproof circuit is able to provide AC power of a first specification (e.g., 110 V AC power) received from the plug to the electric device. However, when AC power of a second specification (e.g., 220 V AC power) greater than the first specification flows through the coil, the coil causes the magnetic core to generate a magnetic force great enough to drive the two reed switches into an open state for stopping the AC power of the second specification from being provided to the electric device.
First claim
Opening claim text (preview).
What is claimed is: 1. A relay-based foolproof circuit for over-voltage protection, electrically connected between a plug and an electric device, wherein the plug is configured for connecting with an alternating-current (AC) power source in order to receive AC power provided by the AC power source, and the electric device can be properly driven only by AC power of a first specification, the relay-based foolproof circuit comprising a relay, the relay comprising: a first reed switch…
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- H02H11/007Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9401604B2 cover?
- The present invention provides a relay-based foolproof circuit for over-voltage protection, which is electrically connected between a plug and an electric device, and includes a relay having at least one magnetic core, a coil wound around the magnetic core and two reed switches each having a reed and being normally in a closed state because of the elastic effect of its reed. The relay-based foo…
- Who is the assignee on this patent?
- Alpha Networks Inc
- What technology area does this patent fall under?
- Primary CPC classification H02H11/007. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).