Fixing the switching power supply of a power tool charger
ฝัง
- เผยแพร่เมื่อ 16 มี.ค. 2019
- Today, let's see how to repair a power tool charger with a faulty switching power supply. Let's learn how to test a power NPN / PNP transistor, MOSFET, diode, electrolytic capacitor and so on...
My DIY ESR meter (with schematic):
danyk.cz/esr_en.html
You can support me on Patreon:
/ diodegonewild
My Instagram:
/ savage_danyk - วิทยาศาสตร์และเทคโนโลยี
It's good to hear someone tell the trick with the screws. It seems obvious but many don't know it.
I didn't until I started watching DiodeGoneWild, now its second nature to me.
I only came to say the same! Finally someone to reveal the secret of proper reassembly to the masses! I kept trying for years and nobody ever took me seriously...
Some screws are also twin threaded with one being bigger than the other so even after locating the original thread if it seems tight rotate another 180 degrees and it will go in easier
A proper "screw"-ing technique is very important to men... ha-ha
I thought it was just the right thing to do, by forcing the screws I knew the thread would get damaged.
Thanks for running through your troubleshooting, this was very informative.
Big Clive impersonator or just a big fan?
He had given this tip in his previous videos as well,😉
yes very informativeI just wish he would sell me some of those transformers he is hoarding lol I hate rewinding them on my power supply
Conservator my beard is my own creation. I’ve had it since before I even watched TH-cam.
Mike oliver Somehow I should have known. 😉 👍
Absolutely amazing. Very little people know that the electrolytic capacitor for driver chip fails often and the symptom is that the PSU shuts off at high load or fast increase in load.
What an excellent video. The captions helped me alot too; I paused and read each one. Thank you for your time.
Would really appreciate more troubleshooting videos from you! You are one of the best teachers on TH-cam! And it would help a lot of us to see how you approach different types of repairs.
Hope you and your beautiful cat and animals are healthy and doing well.
In my experience you tend to get dry joints on the heavier components. Something to do with the flow soldering being set up for the smaller components, the biger ones don't get enough heat to solder properly as they conduct the heat away much quicker. Also sometimes the heavier components will cause a track break if the device has been dropped due to their higher weight ( the inertia of the component can crack a track on the pcb, if the device receives a heavy impact )
Thank You.
This is a really complete description.
Even how to put the screws in.
So many people rethread the screws and ruin the holes.
It is not nice to go around ruining all the holes that you find.
You don't want to make it too loose for the next person.
DiodeGoneWild your uploads are awesome! You make "quality videos" that are enjoyable and informative. People who are old or new to electronics can enjoy watching your uploads. I always look forward to your posts. You and BigClive are my very favorite electronic video uploaders!
I have fg.. 08v.8763745f24758ff
8 m f26f48f3. Vff8f. V
No 7th f8457bn8235vff8fv. V888f85
Rn 2... 8.8 for the vvf847588b8ndfdff8nsf6f
V88v0. Vdb8nfdd888580
0:27 "I'm a horrible hoarder" !!!
Aren't we all?
those are good people to know! they may have that part you just cant find on Ebay or Amazon to fix that power supply
@@rogerd4559 then those dam screws we loose because we up the project to one side lol
PLEASE DO MORE STEP BY STEP DIAGNOSIS REPAIR VIDEOS. These type of videos help me understand the world of electronics more than any other method. Great video but where is your cat? :)
Aww even I miss the cat
I have learnt more from you than any other channel. Thank you so much. Good tip on the plastic thread at the end of the video. Turn the screwdriver anticlockwise first until you hear the click! I've always done that too!
Damn you are getting better at this! Very educational and quick to the point. I appreciate how you don't linger too long on one particular thing, but also you are sure to explain in great detail and even offer tips that will save me from headaches in the future such as the microfarrad reading on a multimeter doesn't always reveal a faulty cap. Thanks DGW!
You always make awesome and informative videos..
I'm so happy that I came so early in this video wow only 24 views
These 24 viewers are from Patreon which get early access to his videos. I'll also try to become your patron .
Admitting that you have had it for a very long time, and did not get around to fixing it as you are a terrible device hoarder gets you a big thumbs up and a subscription from me. I know how you feel my friend! Many thanks for the useful video.
Bravo! Thank you for taking the time to make this video. Your Explanation are spot on and most appreciated.
It’s such a joy being a patreon of this channel. I can recommend it to everybody.
So much valuable information here, this is why I love the internet. Thanks for your work!
I love your videos , I learn a lot from them
nice job! take this, throw-away society :D
This is real environmentalism, not that virtue signaling stuff
I feel it is better to fix old equipment then to buy more junk that is lower quality the newer it becomes
Another great video. You explain things very well and the captions are helpful.
Things are too Dodgy in the world today !! Super trouble-shooting Danyk. LOVE YOUR VIDEOS and your talking 👏👏👏👏
Diode gone wild I have to like your videos and channel and accent it is easy for me listen to
which accent is this?
@@goirikdhar4265 czechoslovakia
@@williama29 thanks!
DiodeGoneWild,
Your method is best ever .
I will keep saying it every time you upload a video, I LOVE YOUR VIDEOS MAN.
That was a very good explanation of how to check a switching power supplies. Thank you.
Great video. Very informative. Thanks
Thanks bro for sharing, BTW your accent always makes me smile, carry on...
I think he is from the land of Tesla. I wonder if Tesla talked like that and it explains his brillient knowledge of electronics. They seem to have the ability to understand electricity very well
@@rogerd4559 this sounds more like an indian accent.Tesla was born in Serbia and literally no one j know speaks english that way.We have a hard r and sound kind of like russians when speaking english
@@aleksastojanov4033 I have heard many indian people speak and they do not speak that way either never heard that accent before
I accomplished your schematic for ESR meter, and i'ts work pretty well. Very simple and efficient design! Success in activity!
Hi alex what value diodes did you use for D1 and D2 please thanks
@@markbosch3915 I used a type of Russian diode I had lain around . I do not know exactly what kind of diodes are. You should use a germanium or schottky diode.
Really professional stuff , I never knew screws and plastic were like that.
Where's the cat ?!
Meow
the dog chased it away :o(
😃
His CAT got tangled up with a CAT-5 cable. xD
@Peter B < I'm old school, just upgraded to CAT-5. ;D
Excellent presentation and demonstration.nice to see very useful video.To the point explanation.
Gracias mi amigo..excelente trabajo y muy buena clase...un saludo desde Chiapas México
You are a very intelligent electrician diode gone wild love watching your videos they are so interesting to me.
I love your videos. Your English so lovely to hear. Keep it up...
..from India
i cant thank you enough for the esr meter
Seriously i always learn a lot from your uploads... Thnk u and love from india
Thanks a lot , the ESR circuit works very neat
Diode, thank you! It was very informative!
Does anyone else try the captions on his videos? You speak very English very well though, love the videos they're actually a lot more informative than some other electronics channels so I come here to actually get my questions answered I have fixing things on my own. :)
thumbs up for your videos ! good explaining and good editing ! thank you
Big UP ! awesome video, all the troubleshooting and repair, very good!
That's incredible that you built an esr. I'm going to check out the schematic
Im actually going to build that amazing ESR meter soon. I think it is an amazing and really useful little tool. Also I have a couple of PSUs to fix!!
Did you build it? I did but something is not working well so I wolud like to ask is your ESR working?
Another helpful troubleshooting tutorial. I like this type of video.
Great video, Mr. Diode!
You deserve at least 3 thumbs up for this video, could only give you one. Thanks!
Fixed similar Bosch charger few months ago. Thing was kept in moist place and on turning on nearly all primary side components except transformer and two resistors fried. Replaced and thing works again.
Very good and informative. Next time, make a teardown of the battery also! I just did on a 2009 Bosch lawnmower battery just like yours - it's a 2p10s battery. I was surprised to see it was built without any balancing from the BMS. No wonder 2 cells were utterly dead! (and have been for years, the battery failed early and has been sitting in a garage for about 8 years)
A great video , very good explain , this is so good to see . Thank you 👍🙌👍
nice work. great to learn troubleshooting on the internet. i really don't like to much books. it's easier to learn seeing someone do the job.
Very educational video, thanks. Waiting for more repairs :)
Thank you for passing the knowledge!!!
Useful video 👍
I suggest you making a video on the internal differences in normal Li-ion batteries, and high C Li-ion batteries used in RC models.
Would be very interesting to see the differences.
As I can tell, nobody on YT has done it before.
Thanks.
Love this video.. Many lessons learned..
Nice to see more power supplies
Buen trabajo amigo!!
Great job, congrates for detailed video
I LOVE YOUR ESR METER
brilliant Again never fail to learn here , thanks .
Very very very informative. Thank you very much. Keep it up :)
Great repair !!!
Nice video, very helpful.
Very good explained - thx.
Nice job, many thanks
Dobré video. Nevěděl jsem, že danyk.cz je tvá stránka, dobrá práce!
Very good & helpful.
I find it helpful to try and always put the screws and hardware back in the holes in the device. Much better that way then in a box or bag cause you know which screws go where.... they may be different lengths and short something or poke through the housing if the wrong place. I try to do that with everything I attempt to fix, from cars to lawnmowers to outboard motors
Great video
Very informative
As always, an aswesome video! Thank you :D
Danyk.cz damn so you're the guy who built all of those Tesla coils and hv generators/drivers 😂😂
I think he was Bogin, he did a lot with PSU for computers, in the past.
we gotta get him to build overunity machines and work on anti gravity
Very nice ers meter, I must build myself one.
this was very informative Thanks
Great learning video
Great video, thank you.
Danke, tolles Video, sehr gut erklärt!
Thank you 🌷 you are professional 🌷
Somebody buy this guy a digital ESR meter quickly! 😉
Amazing the ESR
Mr Carlson's Lab, here on TH-cam, has an excellent capacitor tester, very clever, recommended
thanks for the video and schematic. how much should micro or milivolt meter value should be for esr meter
I verry like your vidéo ! It's verry interresring and i am french but i can onderstend ! ^^
thank you very much sir .you are very helpful. I subscribed your channel
very informative
Thanks for sharing. I Wish to see the schematics also.
Good stuff.
thank you
I think the LED driver doesn't have filter, because I have one like this .but I have no internet at home when it plug in
Thank You So much sir
"I'm a horrible hoarder" 0:25 - luv it!
Excellent et merci
Very interesting video. Was suprised, that the capacitor seems perfecly when only the capacity is measured.
This is very common and a trap for beginners. If you repair electronics, a good ESR-meter is a must. I normally use a component tester from ELV called KT200. I does a XY-scope-kinda test for type (i.d. for a capacitor you get a circle etc.) and is also includes a simple but good ESR-meter: th-cam.com/video/QqL3ffgdfH4/w-d-xo.html
A better capacitor tester is eg. the DER EE DE5000 for about 120$.
Hermann Schaefer wat?
wat wat?
You are great
You always make awesome videos, thanks for that! I always learn something...:D
At 0:27 hoarding? I like to call that area my used parts section. I grab anything that has a electronic component in it, don't care what it is...lol Driving down the street I'm always on the lookout for stuff. I just picked up a Old CRT monitor setting in a yard for the trash guy on the way to a Doctors appointment....:D
I really like you diagnostic ability, that is everything when it comes to fixing anything, a TV, a Car, you have to know how to test stuff. I just learned something today, I don't have to remove a Cap to test it!
I'm going to make me that little ESR tester... I have all the stuff I need in my Used Parts Section.... Lol I Always suspect Caps, I work on old CD radios from time to time, the first thing you do is re-cap the radio and get rid of all of those OLD Gray 10v caps that are 25+ years old.... After that you can checkout other issues if any. Solder joints are another issue in the old stuff..Lol
Thanks again!
Thank you.
WOW nice video
Nice! Thanks
Thank you very much..
Good idea with the screws
Youre really smart!