Systems, methods, and devices for pulse amplitude modulated charging
US-2024405592-A1 · Dec 5, 2024 · US
Power supply circuit with ripple compensation
US9048751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048751-B2 |
| Application number | US-201213435993-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2012 |
| Priority date | Mar 31, 2011 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A power-supply circuit includes: a rectification circuit to output a rectified voltage obtained by rectifying an AC voltage; an inductor to be applied with the rectified voltage; a transistor to increase an inductor current when turned on; a diode to output the inductor current when the transistor is turned off; a capacitor to generate a DC voltage; a detection circuit to detect the inductor current; and a switching control circuit to perform switching of the transistor, when the detected current is smaller than a reference current, and stop switching of the transistor when the detected current is larger than the reference current, the target level corresponding to a level at which the diode is turned on when the rectified voltage rises, when the diode is turned on, the inductor and the capacitor respectively having inductance and capacitance values for allowing the inductor current larger than the reference current to flow.
First claim
Opening claim text (preview).
What is claimed is: 1. A power supply circuit configured to generate a DC voltage at a target level from an AC voltage, comprising: a rectification circuit configured to output a rectified voltage obtained by rectifying the AC voltage; an inductor configured to be applied with the rectified voltage; a transistor connected in series with the inductor, the transistor configured to increase an inductor current flowing through the inductor when turned on; a diode connected in se…
Assignees
Inventors
Classifications
- H02M1/4225Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9048751B2 cover?
- A power-supply circuit includes: a rectification circuit to output a rectified voltage obtained by rectifying an AC voltage; an inductor to be applied with the rectified voltage; a transistor to increase an inductor current when turned on; a diode to output the inductor current when the transistor is turned off; a capacitor to generate a DC voltage; a detection circuit to detect the inductor cu…
- Who is the assignee on this patent?
- Takahashi Yukio, Semiconductor Components Ind
- What technology area does this patent fall under?
- Primary CPC classification H02M1/4225. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 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).