公开(公告)号：US20150069906A1

公开(公告)日：2015-03-12

申请号：US14374231

申请日：2013-01-15

Applicant: OSRAM GmbH

Inventor： Peter Niedermeier

IPC: H05B33/08 ,  B60Q1/00

CPC classification number: H05B33/0803 ,  B60Q1/00 ,  H05B33/0815 ,  H05B33/083 ,  H05B33/0848 ,  Y02B20/346 ,  Y02B20/348

Abstract: Various embodiments relate to a circuit arrangement, including a plurality of semiconductor lighting elements connected in series, a converter for driving the semiconductor lighting elements, and a control unit, with the aid of which the semiconductor lighting elements connected in series can at least partially be bridged by means of drivable electronic switches, wherein the converter can be switched between a first operating mode and a second operating mode with the aid of the control unit, and wherein the converter can be operated as a step-up converter in the first operating mode and the converter can be operated as a step-down converter in the second operating mode.

Abstract translation: 各种实施例涉及一种电路装置，包括串联连接的多个半导体照明元件，用于驱动半导体照明元件的转换器和一个控制单元，借助于这些元件，串联连接的半导体照明元件可以至少部分地 借助于可驱动的电子开关桥接，其中可以借助于控制单元在第一操作模式和第二操作模式之间切换转换器，并且其中转换器可以在第一操作模式中作为升压转换器操作 并且转换器可以在第二操作模式中作为降压转换器操作。