Patent detail

Noise filter

LONDÁK, P. ROZSYPAL, P. MATĚJ, J.

Patent type

Patent

Abstract

Some applications require a noise filter to have a very low cutoff frequency. The low cutoff frequency can require the use of a large resistor that is not suitable for integration in an integrated circuit (IC) package. Smaller components can be used to provide a large resistance in a first direction but not in another. In other words, the resistance of these smaller components may be non-reciprocal. A non-reciprocal resistance can affect a response of the noise filter to disruptions at the input or the output. Additionally, these smaller components may not be suitable for low voltage operation. A noise filter is disclosed that provides a high resistance using components that can be included in an integrated circuit package. The noise filter has a reciprocal effective resistance and can utilize technology suitable for low voltage operation

Keywords

noise; filter; depletion mos; native mos; NVT; LDO; low dropout voltage regulator; reciprocal system; integrated system

Patent number

11,387,811

Date of application

16. 10. 2020

Date of registration

12. 7. 2022

Date of expiry

12. 7. 2042

Owner

SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC (Phoenix, AZ)

Possibilities of use

In order to use the result by another entity, it is always necessary to acquire a license

Licence fee

The licensor requires a license fee for the result

www

https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=Londak&OS=Londak&RS=Londak