Switching power source, method and control chip for controlling the same
US-2015381058-A1 · Dec 31, 2015 · US
Audio amplifier power supply with inherent power factor correction
US9013239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9013239-B2 |
| Application number | US-201414268313-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 2, 2014 |
| Priority date | May 15, 2012 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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An audio amplifier is powered by a switch mode power supply optimized for audio applications. The power supply includes a rectifier circuit and a discontinuous mode multiphase isolated flyback power circuit and does not require a separate power factor correction stage. The discontinuous mode multiphase isolated flyback power circuit includes multiple isolated flyback converters operating synchronously to each convert a portion of the power and supply a phase-summed direct current voltage to the audio amplifier.
First claim
Opening claim text (preview).
What is claimed is: 1. An audio amplifier power supply with inherent power factor correction, the audio amplifier power supply comprising: (a) a rectifier circuit configured for rectifying an input voltage from an alternating current (AC) power source; (b) a discontinuous mode multiphase isolated flyback power circuit configured for receiving the rectified input voltage from the rectifier circuit and supplying a phase-summed direct current (DC) voltage; and (c) wherein the dis…
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Classifications
Cross-Sectional Technologies · mapped topic
- H02M1/4258Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H03F3/183Primary
Electricity · mapped topic
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- What does patent US9013239B2 cover?
- An audio amplifier is powered by a switch mode power supply optimized for audio applications. The power supply includes a rectifier circuit and a discontinuous mode multiphase isolated flyback power circuit and does not require a separate power factor correction stage. The discontinuous mode multiphase isolated flyback power circuit includes multiple isolated flyback converters operating synchr…
- Who is the assignee on this patent?
- Crestron Electronics Inc, Crestron Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H02M1/4258. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 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).