Drahtloses Ladegerät und Empfang einer Last mit Rückwärtskompatibilität zur Automatischen Identifizierung von Schnellem und Langsamem Laden

Details

Veröffentlichungs-Nr.

EP4738649

Anmeldetag

27. Oktober 2025

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

H02J50/12

Abstract

The present invention discloses a backward-compatible wireless charger that automatically identifies fast and slow charging receiving load, comprising a wireless charger and a receiving load, the wireless charger comprises two-level variable DC voltage regulator circuit, a main resonance circuit, a resonant current sampling voltage divider and comparison circuit, the receiving load comprises a receiving resonant circuit, and the resonant frequency of the receiving load is compared with the resonant frequency of resonant circuit in the wireless charger to distinguish different receiving loads and to charge correspondingly. Only common circuit components are used and the circuit is simple, of small size, at low cost, with low energy consumption, safe, effective and reliable, to achieve the high cost-performance of the whole circuit, and at the same time it realizes the compatible fast charging and slow charging receiving load.

Anmelder

Firma

PI POWER PRODUCT (SHENZHEN) COMPANY LIMITED

Land

🇨🇳 China

Fachgebiete