Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

how can I modify this PSU to have 40V in the output?

Status
Not open for further replies.
Delphianrex

Delphianrex

Junior Member level 1
Joined
Jun 30, 2010
Messages
16
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Location
Iran
Activity points
1,398
hi all people out there,
could anyone guide me how i can modify this power circuit to have 40V in the output????
I have built the circuit with Multisim but it's not functioning properly. it just shows 17V in the output.

plz explain them scientifically

here is the main link to the circuit:
0-30 VDC STABILIZED POWER SUPPLY WITH CURRENT CONTROL 0.002-3 A


Thanks in advance
 

Attachments

  • Multisim.rar
    411 KB · Views: 112

Hello, dear friend! You will find that even the most sophisticated simulation is some times far from true!This can be due to wrong inputs or the program is not considering all the factors. The magic is to try to build it yourself. Maybe you know that this supply uses parametric stabilization, which is not so efficient. To increase the output voltage you will need a transformer with higher secondary voltage.You also will have to check the highest possible working voltages of the active elements of the stabilizer and replace accordingly those who have lower maximum working voltages.There are also some IC stabilizers, which you can use to make a decent PS.Hope this helped!
 
The website with that power supply has a very long thread about all the things that are wrong with it (it does not produce an output of 30V at 3A and many of its parts including its transformer are overloaded). The thread shows improvements that make it work properly and reliably.

If you want 0V to 40V at up to 3A then the entire circuit must be re-designed.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top