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data regulator circuit — Parallax Forums

data regulator circuit

nick bernardnick bernard Posts: 329
edited 2004-12-20 15:52 in General Discussion
hail you guys.

which of these 2 circuits is better to regulate data to a 0-5v signal?

thx
nick bernard

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Driver.JPG
500 x 500 - 29K

Comments

  • BeanBean Posts: 8,129
    edited 2004-12-14 22:52
    I would normally just use a series resistor and a 5volt zener to ground.

    Bean.
  • DaveGDaveG Posts: 84
    edited 2004-12-15 03:46
    Nick,

    You should also consider a TI CD40109BE CMOS Level Shifter. It can be used in
    the High-To-Low mode, which would probably satisfy your application.
    It only costs $0.80 from Digi-Key.

    Dave G
  • pjvpjv Posts: 1,903
    edited 2004-12-15 05:05
    Hello Nick;

    How about a series resistor (say 4.7K) to a diode clamped to 5 volts? When your input goes high, the diode will limit the voltage after the resistor to about 5.6 volts. If this is too high, then another series diode from this clamp will drop the level to 5.6 minus 0.6 equals 5 volts.

    Should cost exactly 3 cents!

    Peter
  • nick bernardnick bernard Posts: 329
    edited 2004-12-20 15:52
    hail you guys.
    i used a zener to clamp voltage

    thx of the input

    nickB

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    League Bowling.... it's not a sport, it's a way of life
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