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hi guys, i need a LM723 voltage regulator with 0 to 30 volts and 20amp capability with PIC controllable voltage by PWM or any other technique ......please can some one modify these schematics for me i will be really thankfull to you :w)

hi, i am building this as part of my final year project, the irfp460 on this keeps exploding, it seems to work fine with lower dc voltages 40vdc....but when i apply 310vdc kabooooomm :"::

hi, i am an electronics engineer from karachi paksitan, i am working on a digital programmable power supply and need 60v 30 amp pfc reg stage before my LM5116 wide band buck converter so that i can have digitally programmable voltage and current............plz help.