Physics — Circuit: constant current source
A transistor and emitter resistor set a steady current.
Make it your own.
title "Constant current source"
component V V1 Vcc at (0,0) orient h
component R R1 1k at (2,1) orient v
component Q Q1 at (4,2)
component R R2 100R at (4,4) orient v
component GND G1 at (4,5)
wire (0,0) (2,0)
wire (2,0) (4,0)
wire (2,2) (4,2)
wire (4,3) (4,4)
wire (4,4) (4,5)