Verfahren zur Ansteuerung einer Elektronischen Schaltung in einem Stromwandlerkreislauf sowie Stromwandlerkreislauf

Details

Veröffentlichungs-Nr.

EP3719998

Aktenzeichen

EP19166973

Anmeldetag

3. April 2019

Veröffentlichung

27. März 2024

Erteilung

27. März 2024

Rechtsraum

EP

IPC

H03K17/284H02M1/08

Abstract

A method for driving an electronic switch in a power converter and a power converter are disclosed. The method includes: driving an electronic switch (1) coupled to an inductor (2) in the power converter, wherein driving the electronic switch (1) includes driving the electronic switch (1) in a plurality of drive cycles by a drive signal (S_DRV). Driving the electronic switch (1) in at least one of the plurality of drive cycles includes: determining a desired duration (T_{ON_DES}) of a current (I₁) through the switch (1); and adjusting a duration (T_DRV) of an on-level of the drive signal (S_DRV) dependent on the desired duration (T_{ON_DES}) and a delay time (T_DEL) obtained in a preceding drive cycle. The delay time (T_DEL) is a time duration, in the preceding drive cycle, between a first time instance (t1) when the drive signal (S_DRV) changes from the on-level to an off-level and a second time instance (t2) when a current through the electronic switch (1) falls below a predefined threshold.

Anmelder

Firma

Infineon Technologies Austria AG

Land

🇦🇹 Österreich

Fachgebiete