Does anyone have a 28 LED Diagram Using Photocell & NPN Transistor? Answered

I am new at electronic engineering but i just have a few questions about a diagram i tested which seems to work, but i rather more opinions to ensure my transistor, or leds, or resistors, or anything else doesn't burn out but last.

Can someone advise me if i need to change any resistors? I need some guidance please. Thank you for the help, its really appreciate. In the future i may be downgrading to 5MM LEDs...Red & White. When i do downgrade, will i need to replace my resistors? MY circuit is in parallel..Should it be a good idea to switch to a Series Circuit instead?

Tags:leds electronics resistors transistors led with photocell npn transistor and photocell

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steveastrouk

7 years ago

The all-up running current for the LEDs is 120mA will the transistor handle that ????

islandboii242

Answer 7 years ago

i was thinking if it could, but the LEDs manage to work, but i need to make sure the transistor doesn't burn out. Do i need to add a resistor between the transistor and the negative side of the LEDs?

steveastrouk

Answer 7 years ago

It depends entirely on the transistor, if it can handle the current.