Steuerung für eine Schaltstromversorgung

Details

Veröffentlichungs-Nr.

EP2573921

Aktenzeichen

EP11250817

Anmeldetag

22. September 2011

Veröffentlichung

6. Mai 2020

Erteilung

6. Mai 2020

Rechtsraum

EP

IPC

H02M3/335

Abstract

A controller (210) for a switched mode power supply (100), the switched mode power supply (100) comprising one or more windings (104, 106, 108). The controller (210) comprising a fixed speed timer (236); a threshold setter configured to a set a threshold for the timer (236) in accordance with a peak value of a current (304) through one of the one or more windings (106); a secondary stroke detector (252) configured to start the fixed speed timer (236) upon detection of the start of a secondary stroke of the switched mode power supply; a sampler (232, 234) configured to sample a voltage across one of the one or more windings (108) when a count of the fixed speed timer (236) reaches the threshold.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete