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Driver circuit and inverter circuit
US8971071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971071-B2 |
| Application number | US-201113882531-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2011 |
| Priority date | Nov 10, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention provides a safe circuit that can prevent an arm short, when a half-bridge circuit is configured by using a normally-on switching element, and the half-bridge circuit is used as a driver circuit or an inverter circuit. In a driver circuit configured by a half-bridge circuit in which one of input and output terminals of a first switching element 14 is connected to a first power-supply voltage V 1 on a high-voltage side, and the first switching element 14 and a second switching element 15 are connected in series, a normally-off third switching element 16 is inserted between the second switching element 15 and a second power-supply voltage V 2 on a low voltage side. The third switching element 16 is turned off, when an operating voltage VH or VL supplied from control-circuit power supplies 13 a and 13 b is insufficient for the operation of a control circuit 11.
First claim
Opening claim text (preview).
The invention claimed is: 1. A driver circuit that includes a first switching element having a pair of input-output terminals, one end of which is connected to a first power-supply voltage, and a second switching element connected in series to the other end of the pair of input-output terminals of the first switching element, and that outputs a voltage of an intermediate node between the first switching element and the second switching element, the first and the second switching e…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
- H02M7/5387Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8971071B2 cover?
- The present invention provides a safe circuit that can prevent an arm short, when a half-bridge circuit is configured by using a normally-on switching element, and the half-bridge circuit is used as a driver circuit or an inverter circuit. In a driver circuit configured by a half-bridge circuit in which one of input and output terminals of a first switching element 14 is connected to a first …
- Who is the assignee on this patent?
- Kihara Seiichiro, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification H02M7/5387. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).