The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 03, 2025

Filed:

Apr. 05, 2022
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Marc Gerardus Maria Stegers, Berkel en Rodenrijs, NL;

Gian Hoogzaad, Mook, NL;

Alexander Simin, Nijmegen, NL;

Assignee:

NXP B.V., Eindhoven, NL;

Primary Examiner:
Int. Cl.
CPC ...
H03F 1/52 (2006.01); H03F 3/195 (2006.01);
U.S. Cl.
CPC ...
H03F 1/52 (2013.01); H03F 3/195 (2013.01); H03F 2200/294 (2013.01); H03F 2200/435 (2013.01); H03F 2200/451 (2013.01);
Abstract

A protection circuit and method for protecting driven circuitry against voltage peaks in a radio frequency signal, 'V', past a predetermined voltage level “V”. The protection circuit includes an input for receiving the radio frequency signal. The protection circuit also includes at least one amplification stage coupled to the input. The amplification stage is operable to produce an amplified signal based on V−V. The protection circuit further includes a hold circuit operable to determine, from the amplified signal produced by the amplification stage, whether a peak voltage Vof the radio frequency signal exceeds V. The hold circuit is operable to output a first detection value if Vexceeds V. The hold circuit is operable to output a second detection value if Vdoes not exceed V. The protection circuit also includes a latch circuit operable to latch the detection value outputted by the hold circuit.


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