Furthermore the system comprises said one or more white LEDs, wherein a first terminal of the one or more white LEDs is connected to a first output port of the boost converter, and said programmable current source to deliver a bias current to the one or more white LEDs, wherein {HEAD ~ a first terminal} of the current source is connected to {TAIL ~ VSS voltage} 
Furthermore the system comprises said one or more white LEDs , wherein a first terminal of the one or more white LEDs is connected to a first output port of the boost converter , and said programmable current source to deliver a bias current to the one or more white LEDs , wherein { HEAD ~ a first terminal } of the current source is connected to { TAIL ~ VSS voltage }
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