I sometimes just despair, for months I have been trying to build an LED driver and having such limited success.
Attached is my latest attempt. Whilst the LED comes on its not at all bright. The resistor R1 is 18R for current limiting
The voltage across the LED is 7.74 Volts the Supply voltage is 26.3 Volts. The IRF520 without heat sink is just warm to the touch.
PLEASE can someone assist me and point me in the right direction.
Attached is my latest attempt. Whilst the LED comes on its not at all bright. The resistor R1 is 18R for current limiting
The voltage across the LED is 7.74 Volts the Supply voltage is 26.3 Volts. The IRF520 without heat sink is just warm to the touch.
PLEASE can someone assist me and point me in the right direction.
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