公开(公告)号：US10390404B2

公开(公告)日：2019-08-20

申请号：US15970904

申请日：2018-05-04

Applicant: OSRAM GmbH

Inventor： Daniele Luccato

IPC: H05B33/08 ,  H05B37/02 ,  H02M3/335

Abstract: An electronic converter, including a measurement circuit for determining a first signal indicative of the voltage or current supplied by the electronic converter, a regulation circuit for generating a regulation signal as a function of the first signal and one or more reference signals, and a driver circuit for driving the switching stage of the electronic converter as a function of the regulation signal. The electronic converter includes an optical, inductive or capacitive coupler and a transmission circuit configured to generate a pulse width modulated signal applied to the input of the optical, inductive or capacitive coupler, wherein the transmission circuit varies the duty cycle and the frequency of the pulse width modulated signal as a function of the first and second signal. The electronic converter includes a receiver circuit configured to monitor the received signal at the output of the optical, inductive or capacitive coupler.

公开(公告)号：US10243474B2

公开(公告)日：2019-03-26

申请号：US15973605

申请日：2018-05-08

Applicant: OSRAM GmbH

Inventor： Daniele Luccato ,  Giancarlo Pellizzari

IPC: H05B41/24 ,  H02M3/335 ,  H02M3/337 ,  H05B33/08 ,  H02M1/42

Abstract: An asymmetric electronic half-bridge converter includes a positive input terminal and a negative input terminal for receiving a DC voltage, and two output terminals for providing a regulated output voltage or a regulated output current. The electronic converter moreover includes a half-bridge, a transformer and a rectification and filter circuit. The half-bridge includes a first and second electronic switch, connected in series between the two input terminals, wherein a respective capacitance and a respective diode are associated with the first and second electronic switch. A first terminal of the primary winding is connected to the intermediate point between the first and second electronic switch, and a second terminal of the primary winding is connected via a first capacitor to the positive or negative input terminal. The rectification and filter circuit is connected between the secondary winding and the output terminals.

公开(公告)号：US09960684B2

公开(公告)日：2018-05-01

申请号：US14038844

申请日：2013-09-27

Applicant: OSRAM GmbH

Inventor： Daniele Luccato

IPC: H02M1/34 ,  H02M3/335 ,  H05B33/08

CPC classification number: H02M3/33507 ,  H02M1/34 ,  H02M3/335 ,  H02M2001/346 ,  H05B33/0815 ,  Y02B70/1491

Abstract: An electronic converter may include transformer with a primary winding and a secondary winding, wherein the primary winding is coupled to an input for receiving a power signal, and wherein the secondary winding is coupled to an output including a positive terminal and a negative terminal for providing a power signal. The converter moreover may include an electronic switch arranged between the input and the primary winding, wherein the electronic switch is configured to control the current flow through the primary winding. Specifically, the converter may include a snubber circuit arranged between the secondary winding and the output.