Gleichrichterschaltung mit Reduzierter Reverse-Recovery-Zeit

Details

Veröffentlichungs-Nr.

EP3070830

Aktenzeichen

EP16157589

Anmeldetag

26. Februar 2016

Veröffentlichung

11. Mai 2022

Erteilung

11. Mai 2022

Rechtsraum

EP

IPC

H02M7/217

Abstract

A rectifier circuit (20) includes a MOSFET (M1 (30)), and a first Zener diode (D1 (34)) or a first Zener-emulator (E1 (50)) that emulates the D1 (34). The circuit (20) conducts current in a forward direction (22) from an input (24) to an output (26), and substantially blocks current in a reverse direction. The M1 (30) is characterized by an on-resistance (33). A cathode of the D1 or a cathode-contact (56) of the E1 (50) is connected to the input (24), and the anode of the D1 (34) or an anode-contact (54) of the E1 (50) are connected to the source. The E1 (50) includes a first small-Zener-diode (D11 (62)), a first resistor (R11 (64)) and a first transistor (M11 (66)) interconnected such that the E1 (50) emulates the D1 (34), and is characterized by a Zener-voltage (36). The Zener-voltage (36) and the on-resistance (33) are selected such that a stored-charge in the body-diode (32) is less than a forward-charge-threshold when current flows in the forward direction (22), whereby the reverse recover time of the body-diode (32) is reduced.

Anmelder

Firmen

Delphi Technologies IP Limited
Delphi Technologies, Inc.

Land

🇧🇧 BB

Fachgebiete