{779} Comparison between UC3842, UC3843, UC3844, UC3845 ICs

in this video {779} Comparison between UC3842, UC3843, UC3844, UC3845 ICs, i compared practically different parameters between UC3842, KA3842, UC3843, KA3843, UC3844, KA3844, UC3845, KA3845 series current mode smps PWM controller ics. i checked frequency, duty cycle, vcc startup voltage. UC384x PWM Controller IC Test Circuit. uc3842, uc3842, uc3844, uc3845, ka3842, ka383, ka3845, 1842, 1843, 1844, 1845, 2842, 2843, 2844, 2845 is a family of pwm controller ics, which is used in different pwm controller topologies, as dcm flyback, ccm flyback, boost, buck and feed forward converter topologies. i made this test circuit i to test and verify the ic using oscilloscope and multimeter. we can check its pwm signal on dso and digital multimeter, and duty cycle as well.
download uc3842 3843 3844 3845 ic test circuit diagram

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#howtotest #uc3842_3843 #uc3844_3845
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00:00 UC3842 replacement
00:25 how to measure pwm signal with dso & multimeter
01:06 how to test vcc startup voltage of pwm controller ic
01:41 how to test uc3842 / ka3842
03:05 how to calculate switching frequency for uc3842, uc3843
03:37 how to test uc3843 / ka3843 pwm controller ic
05:32 how to test uc3844 /ka3844 ic
08:10 how to test uc3845 / ka3845 smps pwm ic

[gauripartapshanker]

Very very informative and knowledgeable vedeo. No body can't teach and explain in this way except you. Thank u very much. God bless you and entire family. Thank u again,

[mwangidavid]

I have loved the way you explained it.
Thanks for using English.

[WRMD]

Thank you for your valuable service! Great job explaining! I went from knowing NOTHING about power electronics and SMPS's, to being able to at least diagnose where the problem is. Almost ALL electronics in the world use SMPS's now, so that makes this one of the most practical electronic channels on YouTube. Especially now, with shortages in the world, a broken machine could cost $$$$ each hour it's down! Can't just throw it all in the garbage like the old days! Have a great day sir!

[Nasirali-pjzg]

Very knowledgeable info. Sheared, with practically checked difference ajd. ICs numbers. Thanks so much.

[ALLSEEKER]

Thank you so much. IT is very interesting. You are conducting the video very clearly and step by step. It can understand more clearly for beginners.

[vikram]

It's Great video. Thank you Sir for distinguish these ic's working....

[Dennis-ucgm]

Thank you for the comparisons, something I would of liked to done myself but you save me the time and helped me understand the differences between them. 👍

[HarlavanisPanagiotis]

Excellent video dear friend, have a blessed Sunday 😊

[vijayakumarkumar]

Very good and useful information sir thanks for sharing this knowledge to us

[Aualas]

Thank you so much.Your videos are very informative and useful .Hugs from Brazil!!

[hichamtassi]

Salam Aleikum. Again a very clear and informative video. Thanks and may God bless you.

[mrmilan]

Sir kindly E-Vehicle Charger, Controller ki ek series banaye.. We need sir.. Because knowledge given by ur end is very nice not comparable not beatable. We always oblivious for that. 🙏🙏🇮🇳🇮🇳

[omerequeot]

Congratulations excellent practice video, greetings from Bolivia

[ArshadMehmood-kzez]

With fully knowledge
MashaAllah
Thanks

[ahmedosama]

Many thanks for you, great explanation ❤❤❤

[aseeralshoq]

Thank you brother mohammad I apresheat your effort gad pless you

[alialithary]

Thank for your time and effort to explain the most important information
If you dont mind I want to ask about mosfet drived by utc3842 sometimes we find diode and low resistance in parallel to feed signal to mosfet gate the question is how that work and what the benefit of that
Thank you again

[gerwindsouza]

So informative Sir, as always something nice to learn. Thank you. So I guess it's best to replace with the same types, instead of modifying any circuit.

[shahramarya]

Very good thank you for adding persian language👍

[herielrizk]

Very easy explanation for beginners like me.