+ Post New Thread
Results 1 to 4 of 4
  1. #1
    Junior Member level 1
    Points: 125, Level: 1

    Join Date
    Sep 2015
    Posts
    16
    Helped
    0 / 0
    Points
    125
    Level
    1

    linear regulator with high surg current

    witch is a better solution
    1 , 2 or 3
    of course 2 may not work
    another question is that T2 in circuit1 are act as base current source or not

    •   AltAdvertisement

        
       

  2. #2
    Super Moderator
    Points: 77,678, Level: 67
    Achievements:
    7 years registered
    Awards:
    Most Frequent Poster 3rd Helpful Member

    Join Date
    Apr 2014
    Posts
    15,748
    Helped
    3587 / 3587
    Points
    77,678
    Level
    67

    Re: linear regulator with high surg current

    Hi,

    I´d say 3), because the power transistor here works like a voltage source = low impedance for surge currents.

    1) is more a current source wich is high impedance for surge currents.


    Klaus



    •   AltAdvertisement

        
       

  3. #3
    Super Moderator
    Points: 260,190, Level: 100
    Awards:
    1st Helpful Member

    Join Date
    Jan 2008
    Location
    Bochum, Germany
    Posts
    45,439
    Helped
    13824 / 13824
    Points
    260,190
    Level
    100

    Re: linear regulator with high surg current

    Circuit 1 is unstable without additional feedback loop compensation. Circuit 2 has errors, as already mentioned. Circuit 3 needs darlington transistors or additional current gain for high output current.

    Consider OP output voltage range and required supply.



    •   AltAdvertisement

        
       

  4. #4
    Junior Member level 1
    Points: 125, Level: 1

    Join Date
    Sep 2015
    Posts
    16
    Helped
    0 / 0
    Points
    125
    Level
    1

    Re: linear regulator with high surg current

    to const current or to regulator...?



--[[ ]]--