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Power management circuit and method
US9531270B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9531270-B2 |
| Application number | US-201113180241-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2011 |
| Priority date | Jul 11, 2011 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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A power management circuit and method are described. In the method, whether a first voltage and/or a voltage source are present is determined. Based on a first result of the determination, the first voltage is converted to a second voltage. A boost converter is used to convert the second voltage to a third voltage. Alternatively, based on a second result of the determination, a buck converter is used to convert the third voltage to the second voltage.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: determining whether a first voltage and/or a voltage source generating the first voltage is present at a voltage source terminal by comparing a voltage level at the voltage source terminal with a voltage source reference voltage; switching an amplifier to an on state in response to a first state of an enable signal and switching the amplifier to an off state in response to a second state of the enable signal, wherein the enable signal…
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Classifications
Electricity · mapped topic
- H02J7/90Primary
Electricity · mapped topic
- H02M3/1582Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9531270B2 cover?
- A power management circuit and method are described. In the method, whether a first voltage and/or a voltage source are present is determined. Based on a first result of the determination, the first voltage is converted to a second voltage. A boost converter is used to convert the second voltage to a third voltage. Alternatively, based on a second result of the determination, a buck converter i…
- Who is the assignee on this patent?
- Shi Justin, Taiwan Semiconductor Mfg Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02J7/90. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 27 2016 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).