8-gear constant-current current design the circuit diagram

Published:2011/5/13 4:02:00 Author:Ecco | Keyword: 8-gear, constant-current , current design | From:SeekIC

Resistors R1-R8 use precision resistors, the 500R resistors of the transistor collector also use precision resistors. Electronic switch can change the gears, the diode D uses a 5V regulator, or TL431 to make the D terminal voltage be stable at 5V.Resistors R1-R8 use precision resistors, the 500R resistors of the transistor collector also use precision resistors. Electronic switch can change the gears, the diode D uses a 5V regulator, or TL431 to make the D terminal voltage be stable at 5V.



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