Circuit that deciphers between AC and DC input signals
US-9410993-B2 · Aug 9, 2016 · US
Fast AC voltage detector
US8933688B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933688-B2 |
| Application number | US-201113248583-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 29, 2011 |
| Priority date | Sep 29, 2011 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 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 fast AC voltage detector includes a bridge rectifier connected to an AC power source, a threshold detector connected to an output of the bridge rectifier, a voltage isolation circuit connected to the threshold detector, a continuous voltage averager connected to an output of the voltage isolation circuit, and a Schmidt trigger connected to the continuous voltage averager. The Schmidt trigger is operable to output a first voltage level when a load is preset on said AC power source and a second voltage level when no load is present on said AC power source.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fast AC voltage detector comprising: a bridge rectifier having inputs for connecting to an AC power source; a threshold detector connected to the output of said bridge rectifier, wherein said threshold detector is a Zener driven constant current source; an isolation circuit connected to the output of said threshold detector; a continuous voltage averager connected to an output of said isolation circuit; and a Schmidt trigger amplifier connect…
Assignees
Inventors
Classifications
Physics · mapped topic
- G01R19/155Primary
Physics · 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 US8933688B2 cover?
- A fast AC voltage detector includes a bridge rectifier connected to an AC power source, a threshold detector connected to an output of the bridge rectifier, a voltage isolation circuit connected to the threshold detector, a continuous voltage averager connected to an output of the voltage isolation circuit, and a Schmidt trigger connected to the continuous voltage averager. The Schmidt trigger …
- Who is the assignee on this patent?
- Varland Eric O, Hamilton Karl James, Chandler Philip, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01R19/155. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 13 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).