Power supply control device
US-2024305205-A1 · Sep 12, 2024 · US
Method and apparatus to reduce audio frequencies in a switching power supply
US9219418B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9219418-B2 |
| Application number | US-201313971490-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 20, 2013 |
| Priority date | Oct 4, 2006 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
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Abstract
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An example power supply regulator includes an energy transfer element, a switch, and a controller. The controller includes a switch signal generator, a modulation circuit, and a multi-cycle modulator circuit. The modulation circuit modulates the period of a modulation switching signal when an equivalent switching frequency is greater than a reference frequency and fixes the switching period when the equivalent switching frequency is less than the reference frequency. The multi-cycle modulator circuit enables the switch signal generator to provide a switch signal uninterrupted if the equivalent switching frequency is greater than the reference frequency and disables the switch signal generator for a first time period and then enables the switch signal generator for a second time period when the equivalent frequency is less than the reference frequency. The multi-cycle modulator circuit varies the first time period to regulate the output.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply regulator, comprising: an energy transfer element to be coupled to receive an input voltage of the power supply regulator; a switch coupled to the energy transfer element, wherein the switch is opened and closed in response to a switch signal; and a controller coupled to provide the switch with the switch signal to regulate an output quantity at an output of the power supply regulator, wherein the controller comprises: a switch signal gen…
Assignees
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Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02M3/33507Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9219418B2 cover?
- An example power supply regulator includes an energy transfer element, a switch, and a controller. The controller includes a switch signal generator, a modulation circuit, and a multi-cycle modulator circuit. The modulation circuit modulates the period of a modulation switching signal when an equivalent switching frequency is greater than a reference frequency and fixes the switching period whe…
- Who is the assignee on this patent?
- Power Integrations Inc
- What technology area does this patent fall under?
- Primary CPC classification H02M3/33507. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 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).