What are the advantages of using BJT switches for a 7 segment display schematic?

  • Thread starter Thread starter tnecniv
  • Start date Start date
  • Tags Tags
    Bjt
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
1 reply · 4K views
tnecniv
Messages
15
Reaction score
0
May i know what is the use of the npn and pnp bjt for my schematic? can someone please advise. Thank You
 
Attachments
  • LED2.jpg
    LED2.jpg
    53.1 KB · Views: 534
Last edited:
Engineering news on Phys.org
I would guess they're acting as controlled switches. BJT switches generally have the advantage of allowing more current to pass than can be drawn from the output of many chips.