High-Side-On-Time-Steuerschaltung und Verfahren für einen Asymmetrischen Halbbrückenleistungswandler

Details

Veröffentlichungs-Nr.

EP4723457

Anmeldetag

1. Oktober 2025

Veröffentlichung

8. April 2026

Rechtsraum

EP

IPC

H02M1/00, H02M3/00, H02M3/335

Abstract

The circuits and methods of the present disclosure control the active off-time (high side switch on-time) to ensure the magnetization energy release and resonant capacitor energy release in an asymmetrical half-bridge (AHB) converter finish at the same time and all the stored energy is delivered to the output in each switching cycle. Multiple, parallel, techniques to control the high side switch on-time are illustrated. One is to track the volt-seconds applied during the storage cycle and allow the active release off-time to be limited to the same volt-seconds. A second option is to provide a high side switch on-time that is proportional to the on-time of the low side switch in that switching cycle. A third option is to provide a maximum high side switch on-time that can be programmed to ensure the high side on-time is equal to or smaller than half of the resonant period.

Anmelder

Firma

Power Integrations, Inc.

Land

🇺🇸 USA

Fachgebiete