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US-2024388284-A1 · Nov 21, 2024 · US
Controlled power fade for battery powered devices
US9071069B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9071069-B2 |
| Application number | US-201113080712-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 6, 2011 |
| Priority date | Apr 7, 2010 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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A method is provided for operating a power tool having a motor powered by a battery. The method includes: delivering power from the battery to the motor in accordance with an operator input; detecting a condition of the power tool indicating a shutdown of the power is imminent; and fading the power delivered from the battery to the motor, in response to the detected condition, through the use of a controller residing in the power tool.
First claim
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What is claimed is: 1. A method for operating a power tool having a motor powered by a battery pack, comprising: setting the duty cycle of a pulse width modulated control signal in accordance with a position of the trigger switch; delivering power from the battery pack to the motor in accordance with the control signal, the battery pack having a positive terminal, a negative terminal, and a temperature sense terminal, the battery pack housing a battery coupled to the positive an…
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Frequently asked questions
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- What does patent US9071069B2 cover?
- A method is provided for operating a power tool having a motor powered by a battery. The method includes: delivering power from the battery to the motor in accordance with an operator input; detecting a condition of the power tool indicating a shutdown of the power is imminent; and fading the power delivered from the battery to the motor, in response to the detected condition, through the use o…
- Who is the assignee on this patent?
- Brotto Daniele C, Forster Michael K, Leh Jason K, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H02J7/007. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 30 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).