Schutzschaltung und Verfahren
Anmelder: NXP B.V. 🇳🇱
Details
- Veröffentlichungs-Nr.
- EP4072011
- Aktenzeichen
- EP21167721
- Anmeldetag
- 9. April 2021
- Veröffentlichung
- 25. Juni 2025
- Erteilung
- 25. Juni 2025
- Rechtsraum
- EP
- IPC
- H03F1/52H03F3/19H03F3/45G01R19/165// G01R19/04
Abstract
A protection circuit and method for protecting driven circuitry against voltage peaks in a radio frequency signal, "V<sub>RF</sub>", past a predetermined voltage level "Vdetect". 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<sub>detect</sub> - V<sub>RF</sub>. The protection circuit further includes a hold circuit operable to determine, from the amplified signal produced by the amplification stage, whether a peak voltage V<sub>peak</sub> of the radio frequency signal exceeds V<sub>detect</sub>. The hold circuit is operable to output a first detection value if V<sub>peak</sub> exceeds V<sub>detect</sub>. The hold circuit is operable to output a second detection value if V<sub>peak</sub> does not exceed V<sub>detect</sub>. The protection circuit also includes a latch circuit operable to latch the detection value outputted by the hold circuit.
Anmelder
- Firma
- NXP B.V.
- Land
- 🇳🇱 Niederlande
Niederländischer Halbleiterhersteller mit Sitz in Eindhoven. Entwickelt Chips und Halbleiterlösungen für Automobiltechnik, Kommunikation, Sicherheit sowie industrielle Anwendungen.
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