Thank you very much for your IC documentation. Just some additions. It is not necessary to keep the voltages of the error amplifier below 5.1 V. I have seen many circuits, where the reference pin 16 is connected directly to the non-inverting pin 2 of the error amplifier. The error amplifiers has analog inputs, which are voltage specified to operate below the operating voltage at pin 15. The reduced voltage specification relates to the swiching pins shut down 10 and sync 3. A discharge resistor between pin 5 and pin 7 is not necessary. You can connect both of these pins directly, especially for smaller timing capacitors, which cannot carry larger charges. Also a soft start capacitor is not necessary. You can even connect a resistor of 10 kOhm between voltage reference pin 16 and the soft start pin 8 to increase the oscillator starting procedure. In this way you can f.i. implement a pulse-by-pulse current limit control by use of the shut down pin which stops and restarts the oscillator when the current through the inductor gets too high. The shut down voltage should be limited in such a case to not much than 1.5 to 2.5 V (Zener diode) in order to get a quicker restart. The shut down threshold is between 0.8 and 1 V. The current draw is between 0.4 and 1 mA. So I usually set the Zener diode current to 2.5 mA, to get a quick shut down and restart of the oscillator.
Hi there, i am having an 12v/220V inverter where the SG3525 AP is having 5,7v in the pin10 shutdown so the IC is not working. Where those 5,7v come from ? is it from the protection inverter circuit or it is a bad SG3525 that needs to be changed. Pins 13 and 15 are both linked to the same capacitor. Thanks
Do you think that you can put out a video on the UC1526/3526ADW? It is virtually the same chip with 2 extra pins for Is+ & Is-. The datasheets I've found, leave much to be desired as far as as true mains AC-DC converter application. All I can find are instructions on how to make DC-AC inverter designs, which if working with a 12V starting voltage, can be realized via BJT's.
Thank you so much for making the time to make this wonderful video! I have a powered speaker with a power supply that uses both this KA3525A as well as a VIPer22A. The data sheets both say they are used for SMPS. The VIPer22A is used on the primary side of the transformer, while the KA3525A is used on the secondary side of the transformer. Can you comment on why someone would use both of these? Thanks again!
best regards viper22a is a standby power section. this section turns on directly, when plugged in when we turn on power key or from remote, that time ka3525 turns on to deliver main power supply, required by amplifiers and other power consuming elements
Sir g MashaAllah Bohat zabdust teachings sir ap ny lt494 ic data btaya plz is ka invater trasfamar farmola bts dain faratcor wala trasnfarmar ka farmola
AOA sir Maany Sg3525 module banaya hy Pulse teek araha hy Lykin jab mosfet k sath connect karta hu to wave shape bigerh jata hy awr mosfet jaldi heatup hota hy Kia masla hy Please help me.
pin 16 is V Ref (5 volt Reference voltage) when we provide operating voltage to pin 15 & 13 then this pin number 16 must provide 5 volt DC regulated pin 12 is ground pin if we connect something to pin 16 and the chip doesn't work, it means that there is some short circuit is have something wrong. the ic must provide 5 volt regulated from its pin number 16. by connecting some component, if this pin drops than 5 volt, the ic will not start, because this is basic requirement of the IC
I am looking at a schematic for a PLx- 1602 amplifier… it has a sg3525an, in power supply The + input is tied to the vref(5.1v) The - is tied to PRI_LO So it’s full on all the time ?????
Hi sir, one of the PWM outputs of this SG3525A is higher in VPP than the other output. This can also be noticed after the secondary rectification as one of the square wave is taller than the next one. What can cause this issue?
Hello friend, i want to vary the duty cycle manually ,between 35% and the maximum,49%, with a trimpot i have the china board SG3525+LM358, how can i do that? this for fase 1 of a solar inverter from 25 vdc to 380 vdc; thank you
fu6331L ustad g ac dc fan k card bohat khrab hoty hen har dukandar kehta hai k ly jao bana kar la do bas wo dabal transister ya 1000 uf 35 volt ka capister ya rely ka falt ho to bana dety hen is sy agy hum sy kuch nahi hota agar ap us ki repering par 1 ya 2 video bana den to mujh jesy kai halka phulka kam janny walon ko ik nya rozgar mil jay ga apki badi meharbani ho gi .03317833673 whatsapp
I have watch all the calculations videos and really understand, but you did not calculate the input pi filter(before transformer) and output lc filter, rectifier(after transformer) and full connection and calculation(practical) for the feedback using SG3525A , please can you help show us thanks.
these calculations are in process, EMI / RFI filter. MOSFET selection, output rectifier, filter design calculations are in to be done after completion of all calculations the full circuit will integrated and designed practically
When I connect feedback to pin 1 and ground pin the IC just shutdown the dutycycle doesn't reduce my feedback voltage is 6.5v I connected the pin 2 to pin 16 please can you tell me why it shut's down when I connect the feedback
Hi, that's my problem too, it shuts down ,it does not decrease the Duty Cycle; tried lots of ways,and i cannot get it to reduce the Duty Cycle down from the 49%; Does anyone know how to do it, imean, no theory please, someone who really has done it,and how? I think pin 9 MUST(?) be involved, i see that in all circuits; Thanks
Asslam O Alikum Or sg3525 or ka3525 ma kya defrent hai Q k sir 3kva 5kva ma sg3525 kam nai karta Or ka3525 kam karta hai Please full information Urdu Ma upload Karin
The power of the machine was doubled to melt 7 mm, but in it it was cut by welding the aluminum, then the yellow and red light flashed and remained like this and did not weld with changing 6 to 9 pieces What is the solution
@@HaseebElectronics OK sir no problem sir jab ap ko asani ho sir SG3525 ic pe schematic inverter ka or smps battery charger ka Sher kar diye ga sir please Urdu mai
Nice video 👍👍
,
I watched your video on the tl494 and it was really helpful. This one is just as good. Thanks for sharing.
Wonderful upload dear friend, have a happy weekend!!!
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Mashaallah nice information video stay connected
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Thanks a lot. Stay blessed
Excellent video.
Terimakasih selalu berbagi ilmu yang bermanfaat
semoga sehat bahagia dan panjang Umur Aminn
imformative video
good luck to you my brother 👏👏👌
Sir Namaskar very nicely explained. Thank you so much Sir.
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Mashallah Very Nice Sharing Bhai
ma shaa Allah superb informative video. thanks for sharing
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best regards and special thanks
Very helpful explanation. thank you
You are welcome!
Walikum Salaam Janab Bhai Saab Have A nice Day
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Thank you very much for your IC documentation. Just some additions. It is not necessary to keep the voltages of the error amplifier below 5.1 V. I have seen many circuits, where the reference pin 16 is connected directly to the non-inverting pin 2 of the error amplifier. The error amplifiers has analog inputs, which are voltage specified to operate below the operating voltage at pin 15. The reduced voltage specification relates to the swiching pins shut down 10 and sync 3.
A discharge resistor between pin 5 and pin 7 is not necessary. You can connect both of these pins directly, especially for smaller timing capacitors, which cannot carry larger charges. Also a soft start capacitor is not necessary. You can even connect a resistor of 10 kOhm between voltage reference pin 16 and the soft start pin 8 to increase the oscillator starting procedure. In this way you can f.i. implement a pulse-by-pulse current limit control by use of the shut down pin which stops and restarts the oscillator when the current through the inductor gets too high.
The shut down voltage should be limited in such a case to not much than 1.5 to 2.5 V (Zener diode) in order to get a quicker restart. The shut down threshold is between 0.8 and 1 V. The current draw is between 0.4 and 1 mA. So I usually set the Zener diode current to 2.5 mA, to get a quick shut down and restart of the oscillator.
Asalm aliykum sir so nice
Ma Sha Allah
awesome and informative video
Lovely video Haseeb.
Excellent bro
Very well explain sir
W/salam nice shareing
119 Mais um vídeo perfeito+like+favoritado, fique na paz parçA
You made learning it easy
Nice explained ,,,👍
excellent sir. thank you
Hi there, i am having an 12v/220V inverter where the SG3525 AP is having 5,7v in the pin10 shutdown so the IC is not working. Where those 5,7v come from ? is it from the protection inverter circuit or it is a bad SG3525 that needs to be changed. Pins 13 and 15 are both linked to the same capacitor. Thanks
In india local inverter use 3524 ic
@@Sartajkhankhan-r5f Thanks.
Merci 👍
Nice explain
best regards
بارك الله فيك
Nice video thanks you
Thanks for this great information
Good channel.... 👍
Do you think that you can put out a video on the UC1526/3526ADW? It is virtually the same chip with 2 extra pins for Is+ & Is-. The datasheets I've found, leave much to be desired as far as as true mains AC-DC converter application. All I can find are instructions on how to make DC-AC inverter designs, which if working with a 12V starting voltage, can be realized via BJT's.
As always great video 👍
Thank you so much for making the time to make this wonderful video! I have a powered speaker with a power supply that uses both this KA3525A as well as a VIPer22A. The data sheets both say they are used for SMPS. The VIPer22A is used on the primary side of the transformer, while the KA3525A is used on the secondary side of the transformer. Can you comment on why someone would use both of these? Thanks again!
best regards
viper22a is a standby power section. this section turns on directly, when plugged in
when we turn on power key or from remote, that time ka3525 turns on to deliver main power supply, required by amplifiers and other power consuming elements
@@HaseebElectronics thank you so much for the quick reply! All the best to you from California.
Great job nice
thank you for your lecture its more useful
I want ask you how can convert dc voltage 300v to sine wave by use SG3525 ??
Useful. Please make video for UC3846 also.
Sir g MashaAllah Bohat zabdust teachings sir ap ny lt494 ic data btaya plz is ka invater trasfamar farmola bts dain faratcor wala trasnfarmar ka farmola
Thank you bro. For this great information I have a question when pin 1 give 0 ohm with gnd this meaning get problem
good work
Thanks a lot
AOA sir
Maany Sg3525 module banaya hy
Pulse teek araha hy
Lykin jab mosfet k sath connect karta hu to wave shape bigerh jata hy awr mosfet jaldi heatup hota hy
Kia masla hy
Please help me.
👍👍👍🌹🌹🌹❤️
Thank u sir
you are welcome dear
Nice video ! Well explained !
I have the same microchip. If 1 leg rings on the 12th leg and the second leg rings on the 16th leg, the microcircuit is not working properly?
pin 16 is V Ref (5 volt Reference voltage) when we provide operating voltage to pin 15 & 13 then this pin number 16 must provide 5 volt DC regulated
pin 12 is ground pin
if we connect something to pin 16 and the chip doesn't work, it means that there is some short circuit is have something wrong. the ic must provide 5 volt regulated from its pin number 16.
by connecting some component, if this pin drops than 5 volt, the ic will not start, because this is basic requirement of the IC
@@HaseebElectronics thank you 😊
@@HaseebElectronics i don't have 5v on the 16pin, and my amplifier goes to defense
A simple question...
This ic has 100Hz to 400KHz frequency.
How can get I 50Hz for inverter or UPS ?
I am looking at a schematic for a PLx- 1602 amplifier… it has a sg3525an, in power supply
The + input is tied to the vref(5.1v)
The - is tied to PRI_LO
So it’s full on all the time ?????
Hi sir, one of the PWM outputs of this SG3525A is higher in VPP than the other output. This can also be noticed after the secondary rectification as one of the square wave is taller than the next one. What can cause this issue?
good point
i am planning to prepare a practical video on sg3525 with each detail and problems and their solutions, it is expected in upcoming week
Plz sir we need it😍
Bagaimana membuat duty cycle automatic,jika frekuensi naik,duty juga naik
Nice vedio
Hello friend, i want to vary the duty cycle manually ,between 35% and the maximum,49%, with a trimpot i have the china board SG3525+LM358, how can i do that? this for fase 1 of a solar inverter from 25 vdc to 380 vdc; thank you
nice video 😍
Can you tell me suitable resistors and capacitors for Rt, Ct, Dis to keep 30khz constant.🤔?
Very nice
ustad g ager ac dc fan ka card us ki 48 pin wali ic ko samjha den to badi meharbani ho gi ..
fu6331L ustad g ac dc fan k card bohat khrab hoty hen har dukandar kehta hai k ly jao bana kar la do bas wo dabal transister ya 1000 uf 35 volt ka capister ya rely ka falt ho to bana dety hen is sy agy hum sy kuch nahi hota agar ap us ki repering par 1 ya 2 video bana den to mujh jesy kai halka phulka kam janny walon ko ik nya rozgar mil jay ga apki badi meharbani ho gi .03317833673 whatsapp
How to by Pass the shut down pin of this ic
Pls.can u make a video about ic ucc3570n
Bhai mujhe iski kuch samajh nahi phir bhi full watch ki hai stay connected
I have watch all the calculations videos and really understand, but you did not calculate the input pi filter(before transformer) and output lc filter, rectifier(after transformer) and full connection and calculation(practical) for the feedback using SG3525A , please can you help show us thanks.
these calculations are in process,
EMI / RFI filter. MOSFET selection, output rectifier, filter design calculations are in to be done
after completion of all calculations the full circuit will integrated and designed practically
@@HaseebElectronics thank you very much
nice sir
When I connect feedback to pin 1 and ground pin the IC just shutdown the dutycycle doesn't reduce my feedback voltage is 6.5v I connected the pin 2 to pin 16 please can you tell me why it shut's down when I connect the feedback
Hi, that's my problem too, it shuts down ,it does not decrease the Duty Cycle; tried lots of ways,and i cannot get it to reduce the Duty Cycle down from the 49%;
Does anyone know how to do it, imean, no theory please, someone who really has done it,and how? I think pin 9 MUST(?) be involved, i see that in all circuits; Thanks
@@josepeixoto3384 how can we chat privately?
can you please make a video about making a inverter 50hz - 60hz with sg3525 with feed back ?
much appreciated !
Good bro
informative but sir. this we can learn own, plz make practical video if you can. thanks
Thank you!
waalaikumussalaam
Asslam O Alikum
Or sg3525 or ka3525 ma kya defrent hai
Q k sir 3kva 5kva ma sg3525 kam nai karta
Or ka3525 kam karta hai
Please full information Urdu Ma upload Karin
The power of the machine was doubled to melt 7 mm, but in it it was cut by welding the aluminum, then the yellow and red light flashed and remained like this and did not weld with changing 6 to 9 pieces What is the solution
superb informative video. thanks for sharing
Asslam O Alikum
Sir please Urdu Ma upload Karin
Sir hum China ups ka kam karte hai
G sir thank you
Assalm alekum sir please Urdu mai
@@HaseebElectronics OK sir no problem sir jab ap ko asani ho sir SG3525 ic pe schematic inverter ka or smps battery charger ka Sher kar diye ga sir please Urdu mai
M
not subtitle😔😔😔😔😔😔😞😞😞😞😞😞😣😣😣😣😣😣😖😖😖😖😖😖😖
Translate to Indonesia !
Improve your presentation by correct pronountions
Nice explanation!