10W led driver circuit
Posted: Oct 24th, 2014, 8:12 am
Hi I am using 2 x 10 Watt leds in my ROV.
I need to build a driver for Led myself and I found a good guide here.
For my 10 W led, I calculate R2 is 0.5 Own. Input voltage is 12V.
Forward Voltage of Led : 9-11 V.
Forward Current : 1150 mA From the guide.
The problem is I can't find 2N5088 (T1) and BUZ71 (Q1) in local electronic stores. I could find only 2N222, BC547 and IRF640N.
If I use these transistors instead of the ones in the guide, what changes do I have to make?
I need to build a driver for Led myself and I found a good guide here.
For my 10 W led, I calculate R2 is 0.5 Own. Input voltage is 12V.
Forward Voltage of Led : 9-11 V.
Forward Current : 1150 mA From the guide.
The problem is I can't find 2N5088 (T1) and BUZ71 (Q1) in local electronic stores. I could find only 2N222, BC547 and IRF640N.
If I use these transistors instead of the ones in the guide, what changes do I have to make?