DRIVING CIRCUIT OF LIGHT EMITTING DIODE AND LIGHT SOURCE APPARATUS
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United States of America Patent
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Issued Date -
Apr 11, 2013
app pub date -
Oct 6, 2011
filing date -
Oct 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A driving circuit of a light emitting diode (LED) capable of receiving a power source to supply a driving current to an LED module is provided. The driving circuit includes a first current path and a second current path. The first current path includes a switch. The switch is disposed between the LED module and a terminal. The switch has a control terminal and receives a control signal through the control terminal so as to control whether the LED module is coupled to the terminal via the switch. The second current path is coupled between the LED module and the terminal. The second current path includes an impedance unit and is coupled to the first current path in parallel.
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