Driver circuit for a light-emitting diode arrangement, lighting apparatus and motor vehicle
Number of patents in Portfolio can not be more than 2000
United States of America
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Sep 24, 2019
Grant Date -
Feb 14, 2019
app pub date -
Aug 13, 2018
filing date -
Aug 13, 2018
priority date (Note) -
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Abstract
A driver circuit for a light-emitting diode arrangement has a supply terminal for connecting a voltage source. A boost converter inductance connects the supply terminal to a common circuit node. A switching unit connects the circuit node to ground depending on a switching signal. A rectifying unit connects the circuit node to an anode terminal for the light-emitting diode arrangement by way of a circuit branch to which a terminal of a storage capacitance and a terminal of an RC element are connected. A cathode terminal for the cathode side of the light-emitting diode arrangement is electrically connected to the circuit node. A buck converter inductance is connected in each case between the rectifying unit and the anode terminal and/or between the cathode terminal and the circuit node.
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