Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I just tried this equation by adjusting different resistors values to get Gain_of_U3 to be 4, but it doesn't work.
I need to get Vo (U3) = V1 * Gain_of_U3. Optimal Gain_of _U3 need to be 4
Vo (U3) = ( V1 * ( 1 + (( R14 / ( R17 + (( Rf1 * Rf2 ) / ( Rf1 + Rf2 )))) * ( Rf2 / ( Rf1 + Rf2 ))))...
Buck Converter
I just fix problem, now pulses from comparator properly turn on transistors.
I atached new schematic
The Vo of U3 will be:
Vo = (( 1 + ( R17 / R14 )) * Vpositive) - ((R17 / R14) * Vnegative)
I cannot use any other transistors because professor doesn't allow to do that. That's why I put 2 of them in parallel, trying to split current equally.
The U4 is just voltage follower, I tried without it, but results are the same, and the pulses from LM339 are distorted. (in the beginning of...
Hello,
I’m designing a step-down dc-dc converter.
The output voltage must be adjustable from 2 to 10 volts and capable of sourcing 120 ma at
any of the voltages in the specified range with no more than 50 millivolts ripple. The
efficiency of the regulation must be better than 50% over the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
