发明名称 Driver arrangement and method for driving at least one light-emitting diode
摘要 A driver arrangement comprises a current regulator (12), to which at least one light-emitting diode (15, 42) can be connected, and a driver circuit (13) that is coupled to the current regulator (12) and features a measurement input (20) for receiving a measurement signal (SM) that is dependent on the operation of the at least one light-emitting diode (15, 42). The driver circuit (13) is designed for adjusting the current level of the current regulator current (IS) of the current regulator (12) in dependence on the measurement signal (SM) such that a light quantity (SL) emitted by the at least one light emitting diode (15, 42) has a constant brightness value.
申请公布号 US9185764(B2) 申请公布日期 2015.11.10
申请号 US201214238195 申请日期 2012.08.14
申请人 ams AG 发明人 Waser Karl Georg
分类号 H05B37/02;H05B33/08 主分类号 H05B37/02
代理机构 McDermott Will & Emery LLP 代理人 McDermott Will & Emery LLP
主权项 1. A driver arrangement, comprising: a current regulator, to which at least one light-emitting diode is connected, and a driver circuit that is coupled to the current regulator and comprises a measurement input for receiving a measurement signal that is dependent on the operation of the at least one light-emitting diode, wherein the driver circuit is designed for adjusting a current level of a current regulator current of the current regulator in dependence on the measurement signal such that a light quantity emitted by the at least one light-emitting diode has a constant brightness value, wherein the driver circuit is designed for adjusting the current level of the current regulator current in such a way that the at least one light-emitting diode emits a strobe light with the constant brightness value of the light quantity over the duration of the strobe light.
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