Elektronische Vorrichtung und Verfahren zur Schätzung der Eingangsleistung in einen Resonanten Tank in einem Resonanten Schaltkreis

Details

Veröffentlichungs-Nr.

EP4733779

Anmeldetag

16. September 2025

Veröffentlichung

29. April 2026

Rechtsraum

EP

Abstract

An electronic device (100) to calculate input power (Pr) input to a resonant tank in a resonant circuit (102) includes a bandpass filter (108), a phase detection circuit (110), a peak detection circuit (112), and a processor (114). The bandpass filter receives a resonant current (irp) input to the resonant tank, and filters the resonant current to generate a first baseband current (irp,BPF). The phase detection circuit calculates a phase difference (θv1-i1 ) between the first baseband current and a resonant tank voltage (Vrp) input to the resonant tank. The peak detection circuit generates a baseband current peak value (Irp,PDC) according to the first baseband current. The processor performs a fast Fourier transform on the resonant tank voltage to obtain a resonant tank baseband voltage (Vrp1 ). The processor calculates the input power according to the resonant tank baseband voltage, the baseband current peak value, and the phase difference.

Anmelder

Firma

Delta Electronics, Inc.

Land

🇹🇼 Taiwan