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LM723

Other Parts Discussed in Thread: LM723

Teachers Gentlemen:
National Semiconductor

It is to my liking yet greet cordially ask a small contribution concerning the integrated circuit manual:
LM723 / LM723C Voltage Regulator
Figure No. 7 manual like this, floating positive regulator, the same according to the manual, some resistance is achieved by changing the voltage requirement of the user, in this case mine is 60V-10 A.
I followed all the procedures manual for a regulated 60 V - 10 A
Achievement of which is the drive to get the current regulation. Plot overview:
- As for the PIN CL No. 2 and No. 3 CS PIN as serious connection and to that point.
- Deputy graphic source 60V - 10 A
- Transformer to use 60 V - 10 A
It agrádese Daniel.

  • What does this have to do with Stellaris® ARM® Cortex™-M Microcontroller ??

  • Clearly - somewhere, on some long existing Linear/V-Reg Forum - a Stellaris entry appeared...

    Note that LM723 has max V of 40V.   Developing 60V @ 10A regulated - with linear V-Reg is neat task...   Long replaced by switchers.

    Note 60V @ 10A presents some danger - urge great caution and even skilled supervision... 

  • Moved to the Linear Regulators forum.

    Sue

  •  

    The circuit that you have shown is not 'floating' per the LM723 datasheet.

    For Vout= 60V the circuit should be similar to this ...

     

    When Vout= 60.0V

          Vref pin = (Vout + Vref) = (60V + 7.15V) = 67.15V

          INV pin = (Vout + (Vref / 2)) = 60V + 3.57V = 63.57V

    and

        NI pin = ( (60V +7.15V) x (63.4k / (3.57k + 63.4K) = 63.57V

     

    At 10A out the transistor will be very hot.