As you can see in the first picture, I use 1 SS8050 BJT to drive a led(which requires 500ma at max brightness).
And the power supply showed that it only consumed 130ma.
So I decided to use 2 SS8050 to make a darlington, thus hoping to amplify the output current to 500ma. (As shown in picture 2)
But strangly the output current droped to 40ma.
I checked again and again, just can't figure out how it end up like this.
Aren't it suppose to be output a larger current?
Any help will be very appreciated.
(1)
(2)
And the power supply showed that it only consumed 130ma.
So I decided to use 2 SS8050 to make a darlington, thus hoping to amplify the output current to 500ma. (As shown in picture 2)
But strangly the output current droped to 40ma.
I checked again and again, just can't figure out how it end up like this.
Aren't it suppose to be output a larger current?
Any help will be very appreciated.
(1)
(2)