LED Mains Voltage Measurement Using a Current Mirror
US-2015382429-A1 · Dec 31, 2015 · US
Lighting device, and headlight lighting device, headlight, and vehicle using same
US9101031B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9101031-B2 |
| Application number | US-201013505846-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 1, 2010 |
| Priority date | Nov 6, 2009 |
| Publication date | Aug 4, 2015 |
| Grant date | Aug 4, 2015 |
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- Title
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Abstract
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A lighting device includes a DC/DC converter for receiving DC power and converting the DC power into a predetermined output required for a load; a voltage detection unit for detecting an output voltage or an equivalent value from the output voltage; a current detection unit for detecting an output current or an equivalent value from the output current; and a control unit for controlling the DC/DC converter based on detection values from the voltage detection unit and/or the current detection unit. The control unit reduces the output when a rapid change is detected in a load state in which a change in the output within a first predetermined time is equal to or greater than a predetermined width.
First claim
Opening claim text (preview).
What is claimed is: 1. A lighting device, comprising: a DC/DC converter for receiving a DC power and converting the DC power into a predetermined output required for a load; a voltage detection unit for detecting an output voltage or a corresponding value to the output voltage; a current detection unit for detecting an output current or a corresponding value to the output current; and a control unit configured to control the DC/DC converter based on detection values from the…
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Classifications
Electricity · mapped topic
Electricity · mapped topic
- H05B33/0887Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9101031B2 cover?
- A lighting device includes a DC/DC converter for receiving DC power and converting the DC power into a predetermined output required for a load; a voltage detection unit for detecting an output voltage or an equivalent value from the output voltage; a current detection unit for detecting an output current or an equivalent value from the output current; and a control unit for controlling the DC/…
- Who is the assignee on this patent?
- Tanaka Tosifumi, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H05B33/0887. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 04 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).