TL494 Professional Voltage Booster (DC DC Step Up Converter)

#electronics #engineering
TL494 Professional Voltage Booster (DC DC Step Up Converter) Circuit Link:
electrobuff.bl...
Hi. In today's episode I'll show you how to make a professional DC-DC Boost Converter (Step-up Converter) built around the TL494 PWM IC. You can step up voltage from about 20V up to 170V easily. The power rating is about 100W, making it suitable for powering many prototypes, Switch Mode Power Supplies among other Circuits. Thank you for watching, and don't forget to Like, Share and Subscribe for more.
Website:
electrobuff.blogspot.com

[@electronic7979]

Helpful video

[@ducnguyendinh5431]

thank very good

[@deeinmann]

i have step up boost, similiat to this schematic. the input is 12v, and the output stucks at 86v, even though i've replace the inductor with 1.55 mili henry. what should i do, to get ouput voltage 96 - 120v?
update: i've replace R8 with trimpot... lowering the value for voltage feedback, is increasing the voltage out...

[@ablemicky9923]

ItS a great circuit..you are really doing a good job..will the current increase because the voltage has increased..what effect will that have on the battery..

[@ELECTROBUFF]

None. As long as the battery is above it's rated minimum discharge voltage, it should operate well.

[@ppionke]

about 100W from 1 capacitor on output ... at 20 V it is 5 amps ripples .... full profesional

[@Edmorbus]

Thanks for sharing

[@damensutherland7081]

My transistors keep blowing do you know why

[@alexloktionoff6833]

Using R6 to open nMOS gate is awful. You better use internal TL494 transistor to open the gate and DB140 instead of Q1 to close the nMOS.
Separate Vcc of TL494 from L1 noise by diode /*or at least a resistor*/ and low ESR capacitor.

[@louisdesipio3343]

Will a toroid inductor work? If so how many turns and size of core?

[@elminerocapmacapma14]

Los pines 9 y 10 deben conectarse a la base del transistor, no los pines 8 y 11, así funcionará el circuito

[@joepaul7297]

It's 8 and 11, not 9,10.
You can check the pinout of this ic on google friend.

[@hersanw]

Hi, show the circuit diagram that people need for solar panels, converters 48VDC to 240 and 380v, 5kw or continue 3kw capable of using cheap igbt for welding machines available in the market . Thanks

[@madeintanzania2995]

It requires professional engineer to do that!!

[@tiagonet8794]

For 50A, what's modifications?

[@damensutherland7081]

Does this need a tvs diode or voltage snubber

[@damensutherland7081]

I got this working but when I put about 600 miliamp load it drops do you know what problem is

[@Dc_tech386]

Did you notice you never put the a error amplifier Ic the voltage with drop to nothing so the circuit is half of the converter the load will drop off the voltage I believe me I try it and the voltage drop off i had to use lm359 to get volt stabilized any load

[@ab-nr6bq]

I cant understand the voltage of C1 and C4, what did he said?

[@srfaatmee6425]

1000uF capacitor

[@iikmubarakachmad3054]

Unfortunately you didn't take advantage of the TL494's that have a capabilities for over current or overload protection at pin 16 and pin 15

[@khantalha9693]

When i touch with wire is increse voltage its not dling automatically

[@mohidinotani3579]

Please where can I find the tl494 library in the program

[@ylmazbaspnar4080]

Selam..devreyi yaptım ama çalışmadı.devre denenmiş bir devremidir?

[@munzer2165]

I am also, a failed circuit and this person is a genius in explaining the work of a failed circuit, I do not know where he got this explanation if this circuit is a failure in the first place

[@calcioelavoro333]

Ci vorrebbe una tradizione in italiano 👍👍

[@hmoudkhresheh1979]

Please how much the output current

[@c.schandra2134]

Hey I don't have TL494 but I have UC3842 can there is any solution for this can I build both boost and buck converter with UC3842 if so how can I? Can you give a good converter circuit with UC3842 ?

[@ELECTROBUFF]

Yeah, it's a dedicated DC DC converter IC

[@sushillad1051]

Sir aap practically video banv

[@chibuzoeze4225]

Can you please help me with mppt charge controller circuit diagram?

[@khantalha9693]

Its not triggered plzz help me

[@issaalaji3756]

What is the function of C3?

[@mikemir6738]

Integrator.

[@Ali-jabbar]

OCT should be active high.

[@khantalha9693]

I check bd139 its wirkong

[@phantom-ip8ix]

Construct it and send the pdf

[@yonoleo7951]

Make buck bost dc to dc bos

[@DanielStingBR]

Bad sound

[@yonoleo7951]

Make bu

[@munzer2165]

A failed circuit and did not work, not to mention the many errors in it. Explain the circuit’s work in one valley and its work in another valley. If it was correct, I would have collected the circuit and tried it in front of us.

[@locodeamorjuancito1855]

Its to bad

[@NhuNguyenHoang1998]

I have simulated it but the result is Vin = Vout no problem, hope you can help via mail thanks

[@deeinmann]

whats wrong? mine is working... 🤷‍♂️