Power tool with light unit
US-9225275-B2 · Dec 29, 2015 · US
Load control device for high-efficiency loads
US9220157B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9220157-B2 |
| Application number | US-201514608639-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2015 |
| Priority date | Nov 25, 2009 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A two-wire load control device (such as, a dimmer switch or an electronic switch) for controlling power delivered from an AC power source to an electrical load includes a thyristor for controlling the power to the load, a gate coupling circuit electrically coupled to a gate terminal of the thyristor, a control circuit configured to control the thyristor to turn the load on or off, and a power supply configured to conduct current through the electrical load to generate a supply voltage across a capacitor when the thyristor is non-conductive. When the electrical lead is on, the control circuit is configured to maintain the thyristor non-conductive after a beginning of each half-cycle until the magnitude of the supply voltage exceeds a predetermined threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. A load control device for controlling power delivered from an AC power source to an electrical load, the load control device comprising: a thyristor adapted to be electrically coupled between the AC power source and the electrical load, the thyristor having first and second main terminals through which current can be conducted to energize the electrical load and a gate terminal through which current can be conducted to render the thyristor conductive between…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9220157B2 cover?
- A two-wire load control device (such as, a dimmer switch or an electronic switch) for controlling power delivered from an AC power source to an electrical load includes a thyristor for controlling the power to the load, a gate coupling circuit electrically coupled to a gate terminal of the thyristor, a control circuit configured to control the thyristor to turn the load on or off, and a power s…
- Who is the assignee on this patent?
- Lutron Electronics Co
- What technology area does this patent fall under?
- Primary CPC classification H05B37/0281. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 2015 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).