Multifunction pin for soft start and current limit in voltage converters
US-12160169-B2 · Dec 3, 2024 · US
Startup circuit and input capacitor balancing circuit
US8971069B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971069-B2 |
| Application number | US-201213347616-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 10, 2012 |
| Priority date | Aug 11, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 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.
In one embodiment, an input capacitor balancing circuit for a power supply is provided. The circuit includes an input capacitance operable to filter input power for the power supply. The input capacitance has a first capacitor and a second capacitor coupled in series between an input voltage and a first node. A voltage divider circuit is coupled to the input voltage and operable to generate a divided voltage therefrom. A buffer circuit is operable to receive the divided voltage and, if the first capacitor and the second capacitor are not balanced, to provide current to the input capacitance to balance the first capacitor and the second capacitor.
First claim
Opening claim text (preview).
What is claimed is: 1. A circuitry for a power supply, comprising: a controller of the power supply, the controller having a startup circuit; and a startup and input capacitor balancing circuit for the power supply, the startup and input capacitor balancing circuit comprising: an input capacitance operable to filter input power for the power supply, the input capacitance having a first capacitor and a second capacitor coupled in series between an input voltage and a first node…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H02M1/36Primary
Electricity · 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 US8971069B2 cover?
- In one embodiment, an input capacitor balancing circuit for a power supply is provided. The circuit includes an input capacitance operable to filter input power for the power supply. The input capacitance has a first capacitor and a second capacitor coupled in series between an input voltage and a first node. A voltage divider circuit is coupled to the input voltage and operable to generate a d…
- Who is the assignee on this patent?
- Dunipace Richard A, Fairchild Semiconductor
- What technology area does this patent fall under?
- Primary CPC classification H02M1/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).