Stromwandler

Details

Veröffentlichungs-Nr.

EP3772808

Aktenzeichen

EP19250008

Anmeldetag

5. August 2019

Veröffentlichung

3. Juli 2024

Erteilung

3. Juli 2024

Rechtsraum

EP

IPC

H02M3/155H02M1/00H02M1/32

Abstract

A power converter comprises a buck converter portion (300), an energy storage portion (302), and a controller (304). A first inductor (L1) is connected between the cathode of a first diode (D1) at an input node, and a capacitor (C1) at an output node. The input node is connected to an input voltage 200 via a first switch Q1. A second inductor (L2) in the energy storage portion (302) is magnetically coupled to the first inductor (L1) and is connected to the anode of a second diode (D2). The cathode of the second diode (D2) is connected to a first terminal of the energy storage element (C2), and a second terminal of the energy storage element (C2) is connected to a second terminal of the second inductor (L2). The first terminal of the energy storage element (C2) is connected to the input node via a second switch (Q2). When the input voltage is not less than a threshold, a first pulse width modulation signal is applied to the first switch (Q1) and the second switch (Q2) is opened, otherwise when the input voltage is less than the threshold value, the first switch (Q1) is opened and a second pulse width modulation signal is applied to the second switch (Q2).

Anmelder

Firma

Hamilton Sundstrand Corporation

Land

🇺🇸 USA

Fachgebiete