Apparatus and method for diagnosing a failure of an inverter
US-2024405664-A1 · Dec 5, 2024 · US
Inverter device and electric power tool
US8964429B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964429-B2 |
| Application number | US-201213984883-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2012 |
| Priority date | Mar 14, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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An inverter device includes: an inverter circuit configured to perform ON/OFF operations with a preset duty cycle to convert a DC power into an AC power and output the AC power to an AC motor; and a controller configured to change a duty cycle of the ON/OFF operations.
First claim
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The invention claimed is: 1. An inverter device comprising: an inverter circuit configured to perform ON/OFF operations with a preset duty cycle to convert a DC power into an AC power and output the AC power to an AC motor; a load detecting unit configured to detect a load that has been applied to the motor; and a controller configured to change a duty cycle of the ON/OFF operations, wherein the controller increases the duty cycle when the load detected by the load detecting u…
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Frequently asked questions
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- What does patent US8964429B2 cover?
- An inverter device includes: an inverter circuit configured to perform ON/OFF operations with a preset duty cycle to convert a DC power into an AC power and output the AC power to an AC motor; and a controller configured to change a duty cycle of the ON/OFF operations.
- Who is the assignee on this patent?
- Horie Yuki, Watanabe Shinji, Nakano Yasushi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02M1/32. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 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).