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  1. X

    +5V and -5V OUT PSU Problem !!!!

    If I have done any Mistake with my Power Supply.. Then can you Please Figure it out !!!!  ??? ??? and I have also attested the Schematics of the Digital voltmeter ??? ??? ???
  2. X

    +5V and -5V OUT PSU Problem !!!!

    Hello, Actually I am designing a Digital Voltmeter using ICL7107. Having capability to measure 0-200v with 0.1 resolution. My Problem is, when I connect the output of 7805 and 7905 to ICL7107 at Pin 1 and 26 respectively. the output voltage become zero  at the out pin of 7905 as well as 7805...
  3. X

    Need the Circuit for SMPS

    I know how to use Google I searched too much ...but still didn't find any circuit which matches with my specification. and I have Posted my Specification: I need output in both negative as well positive mode I need 5v positive as well as 5V negative (i.e; -5V) and +10V and -10V. If you can...
  4. X

    Need the Circuit for SMPS

    Hello Friends, Actually After Making my PSU, Today I thought to make a SMPS. But the Problem is this I have not the schematics of the SMPS. Can anyone here Give me the schematic for designing my SMPS. My Requirement is below Input Range Vac(in) :- 100v to 250v Output Vdc (out) :- +5V, -5V...
  5. X

    Function Generator Simulation (Need Help)

    Thanks Buddy.....For your Great suggestion, So, I will really work on your advice about power wiring + primary as well as secondary fuse + make the PCB more Neat and this time I gonna design it with a big chassis as it now.... Thanks buddy...again for your Great advice......  :D :D :D :D :) ;)
  6. X

    Function Generator Simulation (Need Help)

    ;D ;D ;D ;D Don't Think Like a little baby ....Hero I have tested it upto 4 hour of continuous in ON condition with a 500ohm of Load resistance. Its was working fine for me I am just using 1 amp of transformaer....but I can Handle upto 20A of current and 1 amp is nothing as compare to 20A...
  7. X

    Digikey PSPICE Database issue

    Sorry Brother, I have never used PSPICE, so I can't help you about pspice..... But I will recommend you to use TINA electronics Lab....because Its having more funcation and well user Interfaced enviroments for simulation. I am also using it ..Even I have also tested LM317 based power supply to...
  8. X

    Function Generator Simulation (Need Help)

    I know it Looks dirty and even it can let anyone in confusion......... I can Understand...Ok anyway ....Its all just because it was my first time when I made a PSU indivisiually.... :-\
  9. X

    Function Generator Simulation (Need Help)

    thankyou audio guru....I have made a power supply using LM723.....I am a beginner right now...thats why I made this simple power supply and working fine for me... Some pics of my power supply Is here : and finally Circuit Diagram : Hows Its
  10. X

    Function Generator Simulation (Need Help)

    okkk...Thanx Tell me one more thing !!! Will BD136 will work instead of BD140. In power supply section
  11. X

    Function Generator Simulation (Need Help)

    your answer take me to 2 different confusion... 1st if the load resistance is 20ohm , then how 40v will flow through the load, so the maximum limit of Vout is just 30v. 2nd if the circuit will do like this then how we will get our desired Vout at the o/p end, in this manner only one thing can...
  12. X

    Function Generator Simulation (Need Help)

    One thing I still did not understand..... That Current is depend on load resistance.  by changing the Load Resistance only the current can be controlled. Can you tell me, How we are controlling the current here ? How we get the desired current output independently to load resistance here in...
  13. X

    Function Generator Simulation (Need Help)

    Thankyou Audioguru  :) ;D This is that answer which I was want to listen in short  :D
  14. X

    Function Generator Simulation (Need Help)

    :) Thanks for the tip. I have Finally Decided to make this PS. plz tell me will it work fine as per my expectation My requirement is 0-30v o/p with 0-3A Plz tell me ??? PS_Parts_List_10-11-091.pdf
  15. X

    Function Generator Simulation (Need Help)

    So, Can u Give me any modified latest schematic for power supply My Requirement is Variable Voltage Output = 0- 30 V Variable Current output =  0-2/3A Actually, I had decided to make the Circuit shown in below post :- http://www.electronics-lab.com/projects/power/001/index.html But, When I...
  16. X

    NL5 Circuit Simulator

    Its will Definetly Run under WINE. All you have to do Just Copy the whole setup into root and then try to run it.
  17. X

    Function Generator Simulation (Need Help)

    Actually, The Program which I am using for simulation have TL062  in its Library with Single OP amp......Thats why I use 4 op-amp. and The mistake which I had done in right side of my schematics......that I have modified and make it correct. Anyway thanks for support  :-*
  18. X

    Function Generator Simulation (Need Help)

    Thankyou...Its Really Fantastic !!!! Finally I am Going to Design it.........Thakyou AudioGuru. But Still I have an another problem with me......I am going to design a variable power supply 0-30v using LM723. I am not Getting the proper output !!! I have uploaded the Picture of my schematic...
  19. X

    Function Generator Simulation (Need Help)

    Thankyou Audioguru....I had done as you said....evrything is gonna fine now.........at some level Its working now...but still their is some problem,,,,.... But Dont worry.....I will solve it by my own...... Anyway thankyou.... !!!!
  20. X

    Function Generator Simulation (Need Help)

    I have Uploaded audioguru Its in JPG format
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