Furthermore the system comprises said one or more white LEDs, {HEAD ~ 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 a first terminal of the current source is connected to {TAIL ~ VSS voltage} 
Furthermore the system comprises said one or more white LEDs , { HEAD ~ 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 a first terminal of the current source is connected to { TAIL ~ VSS voltage }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL