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C.C. Source for LEDs

You can use up to 24 white LEDs.

C.C. Source for LEDs
 
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Hardware Components

  • IRF740

    X 1

  • 2N2222

    X 1

Tools, APP Software Used etc.

  • Kicad

    fenxiang

Story

C.C. Source for LEDs

 

Constant current source for a white LED lamp

 

This circuit ensures a constant supply current (pre-relayed in the range 25....440mA from the semi-adjustable RV1) of a maximum of 24 white LEDs that can equip a portable camping lamp for example. The voltage source can be from a battery or 4.5-6V batteries.

The regulating element is an N-channel MOS transistor. For example, a more common IRF740 or equivalent transistor can be used.

 

Have fun with it!

Schematic and Layout
Topic
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#LED #source #current
License: Attribution-ShareAlike (CC BY-SA)

C.C. Source for LEDs

You can use up to 24 white LEDs.

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