fixing a faulty light with powerful built in fan (awesome chip inside)

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bigclivedotcom

bigclivedotcom

Жыл бұрын

This light contained a chip I've not come across before. A super minimalist chip that operates at full mains voltage and replaces a lot of traditional circuitry. Bright Power S4523B.
Here's the datasheet (not https).
www.bpsemi.com/upload/cn/file/...
The LED driver is also a Bright Power chip with a super low component count. Notably the current sense resistor/s for setting the LED current and the overvoltage setting resistor for limiting the open circuit voltage. Sometimes the current sense resistor hack affects the overvoltage ratio and needs that resistor value tweaked too. Lowering the light power by even just 10% will have a significant effect on the longevity of the LEDs.
The circuitry was made somewhat harder to reverse engineer by the fan power supply chip probably being a clone, and with a very hard to find and extremely vague datasheet in Chinese that gave very little actual data on the chip.
Reverse engineering was made even harder by a rogue deviation from the vague design examples.
The fan runs at 9.5V and 330mA.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- www.bigclive.com/coffee.htm
This also keeps the channel independent of KZfaq's algorithm quirks, allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators

Пікірлер: 440
@MisterTalkingMachine
@MisterTalkingMachine 11 ай бұрын
I love how over a hundred year cycle we have come full circle to appliances that connect to a lightbulb socket
@MrBobWareham
@MrBobWareham 11 ай бұрын
I have even seen a Kettle plugged into a light socket with the old Bakelite plug dangling down onto a table with the kettle on the end, back in the 60s, and it worked, but the kettle was an old 1 KW type.
@1marcelfilms
@1marcelfilms 11 ай бұрын
​@@MrBobWareham Travel kettle is usually 800w
@WATTYUK
@WATTYUK 11 ай бұрын
Bring back the Christmas tree hahaha
@cecilkorik
@cecilkorik 11 ай бұрын
It was only a few decades ago that we were on the opposite end of the cycle, the apartment I lived in back then had only 1 overhead light right at the entrance door, the rest were all "supply your own lamp" switched outlets randomly scattered around the walls of every single room. Of course that could've also just been because my landlord was too cheap for light fixtures.
@nickryan3417
@nickryan3417 11 ай бұрын
To be fair, ceiling mounted fans are usually connected into the lighting circuit - particularly when combined with a light.
@tomschmidt381
@tomschmidt381 11 ай бұрын
Interesting device. Nice that it uses short on/off mains cycle to change operating mode rather then having to set up a account in the cloud to control it.
@tactileslut
@tactileslut 11 ай бұрын
I have several things like that. Their state is never predictable: my electric utility blinks off quite frequently. Thanks, Entergy.
@WineScrounger
@WineScrounger 11 ай бұрын
>your refrigerator, doorbell and TV have entered the chat
@Vincent-Singh17159
@Vincent-Singh17159 11 ай бұрын
usually they would come with a remote to control the light and fan
@mgancarzjr
@mgancarzjr 11 ай бұрын
​@@WineScroungersadly, they can do just that.
@antonliakhovitch8306
@antonliakhovitch8306 11 ай бұрын
Solutions like these can be finicky, and having a separate remote for each device just sucks. There ARE decent home automation solutions that don't involve any cloud crap
@Ale.K7
@Ale.K7 11 ай бұрын
Glad that fixing the broken track didn't make it go kaboom. I once fixed a broken track on a walkm... portable cassete player/recorder and radio (wasn't Sony) and the thing didn't work. I had also repaired several other tracks due to battery corrosion, but this one was away from the damaged zone and appeared to have been cut with something sharp. Sure enough, everything worked flawlessly after I disconnected it.
@mcwolfbeast
@mcwolfbeast 11 ай бұрын
CS and GND are swapped on the datasheet because of the 1 and 2 being swapped. GND is pin 1, CS is pin 2
@rpdom
@rpdom Жыл бұрын
Brown Black Gold = 1R (10 x 0.1), Gold = 5%, Black = Wirewound
@Bleats_Sinodai
@Bleats_Sinodai 11 ай бұрын
Thank you!
@terryhayward7905
@terryhayward7905 11 ай бұрын
It has 2 gold bands, I wonder if that is an odd way to show 1% ?
@rpdom
@rpdom 11 ай бұрын
@@terryhayward7905 The first gold is the multiplier: Brown = 1, Black = 0, Gold = x 0.1. The second is the 5%.
@jagmarc
@jagmarc 11 ай бұрын
Manufacture of first consumer grade 5% resistors was delayed by decades because they had to wait until gold color paint came along. No, seriously before color rings they were all brown paint dipped & a color dot to indicate the resistance. 1K red dot, 100 K yellow dot etc... A radio from that era wouldn't work any better with accurate resistors, still pick up stations fine with +100% / -50% off nominal value When "E6" invented they had to dip one end in a different color for the extra digit yellow body violet tip & orange spot = 47K
@muffenme
@muffenme 11 ай бұрын
Must be a non standard resistor.
@SodaWithoutSparkles
@SodaWithoutSparkles 11 ай бұрын
The chip was primarily used in multi-colour lights. The output is connected to a white LED and a yellow-ish LED. Then you can adjust the colour temperature.
@envisionelectronics
@envisionelectronics 11 ай бұрын
Yes I have one in my shower that doubles as a nightlight with a separate ring of amber color LEDs
@kbhasi
@kbhasi 11 ай бұрын
Interesting. They likely wired the fan as the warm white light.
@KeritechElectronics
@KeritechElectronics Жыл бұрын
Definitely interesting. I've seen lamp fixtures with fans, but never lamps themselves. So technically, it'd make the device "The Fannylighter" (or "The Fannyluminator") :)
@MicraHakkinen
@MicraHakkinen 11 ай бұрын
Instructions unclear: It's a Fannymutilator
@linuxgreybeard9945
@linuxgreybeard9945 11 ай бұрын
And if Clive got the wiring wrong, Fanny Flambeau !!!
@tin2001
@tin2001 11 ай бұрын
@@linuxgreybeard9945 I believe he is never to mention that product again after selling the rights to a copyright scammer.
@daveys
@daveys 11 ай бұрын
Given those gaps, it could also be called a fingerbasher.
@jimballantine4408
@jimballantine4408 11 ай бұрын
Or even 'fanlight fannies fan' 😂
@juicyvids
@juicyvids 11 ай бұрын
Interesting device, especially if the fan could also be made to rotate in the opposite direction, as to illuminate and extract soldering fumes in a workbench.
@Comrade_YG
@Comrade_YG 11 ай бұрын
Thats are awsome idea
@joshmyer9
@joshmyer9 11 ай бұрын
It's brushless DC, so swapping two of the winding leads on the little daughterboard should reverse the direction. (A fact that RC pilots know all too well.)
@FSM_Reviews
@FSM_Reviews 10 ай бұрын
It looks like the fan blade used in this particular device is designed to spin in only one direction.
@michaelcalvin42
@michaelcalvin42 11 ай бұрын
Thanks for always taking the time to reverse engineer and explain these consumer electronics. I love it when you find new, ingenious circuitry or chips, and I know I'm not alone when I say that I've learned a lot from your videos over the years.
@Eromatic
@Eromatic 11 ай бұрын
That chip would equally have a nice application in larger ceiling fans with lighting. Normally two wall toggle switches are used to control each function, but in a household room with only one wall switch (2 conductor wire with ground), it could make the operation more practical instead of needing a remote control or reaching for the string light/fan switch. In such a mains to mains connection with a few relays could retrofit existing installations.
@MadScientistGuitarLab
@MadScientistGuitarLab 11 ай бұрын
There's a million dollar idea. I can hear the infomercial now. (black and white video of frustrated person shaking their head) "How many times has this happened to you? You want the fan and you can't find the remote!" (color video with happy family blown by fan) "You need the Clive-O-Matic!"
@franktuckwell196
@franktuckwell196 11 ай бұрын
When i was twelve, we had a bathroom light that was an enormous shaped bulb that had an heating element inside it. The idea was that it slightly heated the bathroom, whilst you were in the bath. But i was in the bath one day when it exploded. My (much to my embarrasment) big brother lifted me out of the bath, as every surface, as well as the soap, was covered in glass shards i had a narrow escape as i got hit on my left inner thigh, which burnt but didn't cut and missed anything important. They are no longer manufactured as far as i know. This was about 1966
@bigclivedotcom
@bigclivedotcom 11 ай бұрын
The infrared heat lamps are still available. They do tend to fail with a bang.
@sophiophile
@sophiophile 11 ай бұрын
I always thought that, when people complain about the heat inefficiency of lights- if you live somewhere that needs heating, you are actually using 100% of the energy (and thought that adding a fan could help circulate the heat). Didn't know they were actually a thing, even if that's not the intention.
@Mrvideosandgames
@Mrvideosandgames 11 ай бұрын
Winters do feel colder with LED lighting. On the bright side, inductive loads such as light bulbs are a more expensive option of heating for most people anyway.
@sophiophile
@sophiophile 11 ай бұрын
@@Mrvideosandgames I never understood why power factor correction isn't regulated by law. For small devices, the impact might be small, but that also means the cap is really cheap to correct it. And if it was required it would all add up. Or did I misunderstand and you were talking about alternatives like nat gas or heat pumps? Cuz if you are talking about heat pumps especially, it would be amazing if we just pumped heat where it was needed around a house to make every other heat pump (or sink) more efficient- my dream home would be one where that was the case.
@Mrvideosandgames
@Mrvideosandgames 11 ай бұрын
@@sophiophile Yeah, I just mean LEDs produce less heat than older types of bulbs, but on the flip side light bulbs aren't a great way to heat your home to begin with when electricity is triple the cost of gas (in the UK) and resistive (sorry, not inductive) heaters use about double the electricity of heat pumps.
@dean5263
@dean5263 11 ай бұрын
Back when things used to have a warranty and worth fixing, we would make tons of money in the shop by fixing manufacturing defects like that open track.
@dimitar4y
@dimitar4y 11 ай бұрын
we've gone full circle to the early 1900's, connecting appliances to the light sockets :D
@connclissmann6514
@connclissmann6514 11 ай бұрын
Thank you for the ages that video took you, most impairment. Informative. Crazy that the control track was broken. No resulting explosions or fire when you fixed it, but then you can't have everything. 🙂
@tdurmon
@tdurmon Жыл бұрын
Another interesting video, Big C! I couldn’t wait to see what reaction that bridge would cause. Seemed an obvious fault, but one never knows.
@AndreasA.S.
@AndreasA.S. 11 ай бұрын
yeah, schems shouldn't use NC fpr possible switching pins, normally closed ,not connected
@ecaparts
@ecaparts 11 ай бұрын
@@AndreasA.S.That schematic as shown with the NC on the mystery trace was not exactly the same chip number. Big C mentioned he had a difficult time finding many of the datasheets. The drawing shown may be a cheaper version without additional functionality of the control pin as the actual chip number ends with a ‘F’.
@tonyweavers4292
@tonyweavers4292 Жыл бұрын
Excellent quality control as usual.
@Quickened1
@Quickened1 11 ай бұрын
I love the fact that Clive can cut your electricity bill in half, just by snipping a resistor!
@MadScientistGuitarLab
@MadScientistGuitarLab 11 ай бұрын
@@birdthrow resistance is futile?
@davelowets
@davelowets 11 ай бұрын
@@birdthrow I had it done years ago... best thing I have ever done. 💯
@Styphoryte
@Styphoryte 10 ай бұрын
@@MadScientistGuitarLab golden comment 💀🤣
@Erik_Swiger
@Erik_Swiger 11 ай бұрын
"Over-volted." I'm going to start using that. "Can't deal with it today, I'm already over-volted."
@BeezyKing99
@BeezyKing99 11 ай бұрын
I still can't stop appreciating the fact you warn us when the light's coming back on.
@channelsixtysix066
@channelsixtysix066 11 ай бұрын
That was an interesting little evaluation and repair video, Clive. Cheers. You're right about the BLDC fans, they are cheap to make, lightweight for all sorts of applications and don't use much power.
@davida1hiwaaynet
@davida1hiwaaynet 11 ай бұрын
Very neat fan-light! Thanks for taking the time to figure it out, and fix it. The Bright Power chip is neat because it emulates a traditional three-way lamp control. Could see some applications for that myself!
@aleksandersats9577
@aleksandersats9577 11 ай бұрын
I did not expect to find you here, love your content btw!
@gregorythomas333
@gregorythomas333 Жыл бұрын
As soon as your uncovered the back side picture my eyes went straight to the error in the circuit...like a magnet or something :) This is a pretty neat little fan/light!
@smilerbob
@smilerbob 11 ай бұрын
A great video to shine a light for your many fans 👍
@philippinesgoodlife
@philippinesgoodlife 11 ай бұрын
I liked it so much ,I bought one! Slightly different pcb layout and different LED control chip DP9503AB but still has parallel resistors between CS and Grd pins but both SMD and both 1R80. Removed one, now 12W light with fan. Thanks Clive
@mysock351C
@mysock351C 11 ай бұрын
12:10 Anyone else see it? Look at the pin numbering lol! "2-1-3-4" Don't think that is standard. When they made the datasheet, someone inadvertently swapped the pins in the diagram. Makes complete sense when you flip the two pins as then the ground is tied to the local star-point to provide a stable 0V reference, which is a really good idea since you don't want noise screwing with the feedback network. Edit: Not the only one to see it from other comments here, but it would make things confusing for sure.
@rosiehawtrey
@rosiehawtrey 11 ай бұрын
Looks more like an odd engine firing order than something electronic.. Usual 4 pot is 1-3-4-2 but some are different and that's a viable option although it'd sound odd...
@johndododoe1411
@johndododoe1411 11 ай бұрын
Connecting wires inside the ceiling is traditional in my country and others, often upgraded to a dedicated connection outlet . But mounting a lamp specific bracket (or entire lamp) is also common .
@cyndicorinne
@cyndicorinne 11 ай бұрын
That’s some clever capability on what is ostensibly a rather mundane device. The way of switching between the light and fan is pretty ingenious and handy (avoids having to go to the device to make the selection). Nice work reverse engineering it as well.
@ricoma6037
@ricoma6037 11 ай бұрын
I truly enjoy your work! Thank you from the US!
@Shaun.Stephens
@Shaun.Stephens 11 ай бұрын
Thank you Clive, love your videos.
@wisher21uk
@wisher21uk 11 ай бұрын
Brilliantly modified Clive I’m quite impressed with the fan lamp thanks 😊
@supergeekjay
@supergeekjay 11 ай бұрын
As soon as I saw the bridge rectifier I couldn't help shouting out ElectroBoom style, "FULL BRIDGE RECTIFIER!!!"
@Bob.Jenkins
@Bob.Jenkins 11 ай бұрын
Thanks for the many, many videos that I've watched and enjoyed.
@bigclivedotcom
@bigclivedotcom 11 ай бұрын
Thanks Bob. That's greatly appreciated.
@kareno8634
@kareno8634 11 ай бұрын
NEW & IMPROVED Fan with Light - a *CLIVE Shipped with Every one.* : } BRAVO!
@ppokorny99
@ppokorny99 11 ай бұрын
Did you notice on the data sheet that the CS and GND pins have the numbers swapped on the package outline. The GND pin is numbered 1 but is in the 2 position. So maybe that is the cause of the confusing wiring and datasheet
@MattyEngland
@MattyEngland 11 ай бұрын
Yeah I think so too.
@EldaLuna
@EldaLuna 11 ай бұрын
what a interesting light. ive started seeing stuff like this as of recently. even some just a fan that screws into a socket in some cases i see these being nice for really restrained places were even smallest ceiling fan wont fit though.
@TheSpotify95
@TheSpotify95 11 ай бұрын
Looks like an interesting light, especially with the fan function as that would help with the current warm weather that you get in a typical UK summer! I'd personally tame the light down to 10W as shown in the video if using in a smaller room - if using in a larger room, or if a good amount of light was required, I'd use it full tilt at its 25W. After all, 25W on this will give way, way more light than a 25W tungsten lamp, a 28W halogen lamp, or even a 23W CFL.
@FrostbiteXZ
@FrostbiteXZ 11 ай бұрын
Funny....I've been seeing these randomly pop up on KZfaq even one from Bell and Howell as of late but the one from Bell and Howell are so far the best ones I've seen
@lesallison9047
@lesallison9047 11 ай бұрын
Very interesting. Thank you Clive . ✌💚🇬🇧
@Seasonstobecheerful
@Seasonstobecheerful 10 ай бұрын
❤ brilliant 👏 and a good result acknowledges your genius status Clive ❤
@MadScientistGuitarLab
@MadScientistGuitarLab 11 ай бұрын
I love the way you break things open and discover ways to make them work better or in this case - as designed. I have to wonder if the broken trace was intentional. I also wonder if the higher wattage used by the lights is meant to make them burn out faster.
@Termini_Man
@Termini_Man 5 ай бұрын
I love 3 phase brushless motor fans. They tend to work a lot better, be more reliable, quieter, and project airflow a lot better. I am a big fan (pun very much intended). It is easier to have them on smaller fans, but i hope to see them more often. It is nice that it is a sensored motor too. people often prefer sensor-less ESCs, but i believe they can be a lot simpler with a simple hall effect sensor. so I tend to like sensored ESCs more, even if they have 2 or 3 hall sensors.
@agustinusreynaldi7101
@agustinusreynaldi7101 11 ай бұрын
This unit are rare here and looks useful for small room
@myfavoriteviewer306
@myfavoriteviewer306 11 ай бұрын
For some reason I've always had bad luck with anything that uses switch toggling for controls. I just chalked it up to lacking the mental capacity and/or physically dexterity to make the tthings work, but based on this single example in one video I will now simply assert that they were all made with faulty tracks 😂
@TheSlyMouse
@TheSlyMouse 11 ай бұрын
I really loved this one. And definitely well worth while.
@lwilton
@lwilton 11 ай бұрын
I wonder if that would make a decent ring light around a macro camera? Obviously a little removal of unneeded parts would be required, but if it is both even enough light distribution, and cheap enough, that might be a worthwhile thing to do.
@LakeNipissing
@LakeNipissing Жыл бұрын
Ahhh... the "Fannyblaster". In pink, of course.
@bigclivedotcom
@bigclivedotcom Жыл бұрын
It is indeed the pink fannyblaster. That has completely different meanings depending on where you are in the world.
@roberthindle5146
@roberthindle5146 11 ай бұрын
That BrightPower chip is the same thing used in the "cold white/warm white" lightbulbs you can get at Q&B.
@keithking1985
@keithking1985 11 ай бұрын
Thanks Clive 👍🇮🇪🙏🏻
@wobblysauce
@wobblysauce 11 ай бұрын
That looks great… might go look for one or two
@benwinkel
@benwinkel 11 ай бұрын
Congrats on your new king.
@BersekViking
@BersekViking 11 ай бұрын
Phillips has a series of "automatic" dimmer LED lamps. They have 3 light levels. Low, with warm color. Medium with warmer color and High with normal color. The level is changed by turning the lamp off/on. I guess that chip was designed for that kind of application.
@ElvenSpellmaker
@ElvenSpellmaker 11 ай бұрын
Quite funny that the Edison fixing screws off using a Bayonet motion.
@someadvids5655
@someadvids5655 11 ай бұрын
Hi, luv your videos mate keep them comming! take care
@craignehring
@craignehring 11 ай бұрын
Good show may man, bravo
@peterjensen6844
@peterjensen6844 11 ай бұрын
These would actually be really nice in the garage. Especially this time of year when it gets stupid hot out there
@Slikx666
@Slikx666 11 ай бұрын
Another fantastic and enlightening video. 😐👍
@saalkz.a.9715
@saalkz.a.9715 11 ай бұрын
Well, that was fantastically enlightening. 😁
@RS-Amsterdam
@RS-Amsterdam 11 ай бұрын
Fan-tastic video Thanks for sharing
@Bob.Jenkins
@Bob.Jenkins 11 ай бұрын
Awesome video again, Clive - I'd have loved to see your actions and hear your thoughts processes as you Reverse Engineered it.
@BRUXXUS
@BRUXXUS Жыл бұрын
What an odd product, but I can see how it could be kind of a nice thing to have around. Maybe for one of those desk lamps with the articulating arm.
@mcflapper7591
@mcflapper7591 11 ай бұрын
That's a curious botch, there, for sure. Never seen a broken trace before. All kinds of other stuff but a broken trace is a first. :) Thanks for sharing.
@fredflintstone1
@fredflintstone1 11 ай бұрын
Very nice it does swing a lot on the end of the light flex in the ceiling 🙂
@Chrisamic
@Chrisamic 11 ай бұрын
Self oscillating fan! :-)
@RFC3514
@RFC3514 11 ай бұрын
I think part of the reason why a lot of people in the UK still stick to inches is that they seem to think the alternative is to measure everything in millimetres, when in fact most of the civilised world uses _centimetres_ for "medium-sized" stuff (which is why the ruler is marked in cm, not mm).
@jagmarc
@jagmarc 11 ай бұрын
inches are better because use less of them to do the job , and only the English made rulers originally . Plus nearly everything in the world has been inches 19 inch rack 50 caliber 3.5 floppy 0.1 inch matrix 4" block 2 inch multitrack "1/2 inch AF" is secret mechanics tool for 13mm 2 by 2 studding etc. etc.
@channelsixtysix066
@channelsixtysix066 11 ай бұрын
Hmm, I measure everything in mm or metres. I guess I'm used to it. Metric is all I've ever used, since the early 1970s. 🦘
@jagmarc
@jagmarc 11 ай бұрын
​@@channelsixtysix066the screen you're looking at now is likely a "xx inch" and just about everything electronic you've ever used has been inch-based inside fullsize headphone plug is quarter inch hard drive is 2.5 "
@RFC3514
@RFC3514 11 ай бұрын
@@jagmarc - Yeah, in the (very few) parts of the world that use inches, everything seems to "be" inches. Imagine that. 😄
@johndododoe1411
@johndododoe1411 11 ай бұрын
​@@RFC3514But also many things from industries previously dominated by UK/US . However many modern component pinout grids are now metric by design, such ad 0.5mm grids . Meanwhile bureaucratic fanatics insist on official metric names such as 90mm disks and 47cm televisions .
@stevenA44
@stevenA44 11 ай бұрын
That's an interesting fan. I might have to look at those.
@OldManBadly
@OldManBadly 11 ай бұрын
Same logic as the multi-color temp LED systems - you turn the mains on and off (wall switch usually) and it steps through the modes. As long as you go back on before the time out, it will be in the next mode. most of those are cool - warm - combined as three steps, some have a half power mode as well.
@chrishartley1210
@chrishartley1210 Жыл бұрын
Interesting chip but I noticed from the datasheet that the trigger voltage is about 170V peak (=120VAC) which makes me think it would be unreliable on US voltage. On the other hand that might be dependent on the voltage on the HV pin via a voltage divider. Although it doesn't say how much current it can sink, the data pins can handle up to 30V through a 500 ohm resistance which suggests 60mA so it should be possible to drive a relay directly. Now if only they were available...
@petermembrey7075
@petermembrey7075 11 ай бұрын
I have one of these but mine has a small remote control as well, with the remote you can change the light to cool white, natural, & warm white + also dim the light the remote also allows you to change the fan speed 3 settings & also a timer for the fan 1 2 or 4hrs, other than that it's basically the same as the one in the video.
@batdragon71
@batdragon71 11 ай бұрын
I knew that I had seen that type of resistor before. The bandings are Brown = 1, Black = 0, Gold = 0.1 (multiplier), Gold = 5% (tolerance), Black = non-inductive (biflar wound WW). They are used in inductive sensitive circuits Edit. Someone said it below 🙂
@Agent24Electronics
@Agent24Electronics 11 ай бұрын
Good to know!
@muffenme
@muffenme 11 ай бұрын
It a 4 band color with the last band is use to state something different about the resistor. Brown, black, gold and gold are use only to determine the resistance.
@TediChannel23Ja
@TediChannel23Ja Күн бұрын
Thats sound nice bro 😊
@richardbriansmith8562
@richardbriansmith8562 11 ай бұрын
Awesome Video big clive
@HelloKittyFanMan
@HelloKittyFanMan 11 ай бұрын
Ha, interesting: a miniature ceiling fan! Yeah, I've seen oscillating mini-ceiling-fans without lights in the Philippines, but this is a little dial back to the traditional type because of the light, although still very small in comparison, so yeah, that's why it's so interesting!
@Subin_Roy
@Subin_Roy 11 ай бұрын
I have seen one which probably uses this chip. The short switching cycle toggles between cold-white, slightly-warm-white and warm-white.
@Visiorary
@Visiorary 11 ай бұрын
I saw something on ebay that is similar and has a remote. And another one with RGB and other features. I pictured Clive with a feather boa!
@cerulyse
@cerulyse 11 ай бұрын
Those plastic fans ... I got a dimplex heater with one which fell off and caught fire on the element almost, shocking
@AMDRADEONRUBY
@AMDRADEONRUBY Жыл бұрын
Nice a fan related video you should make more fans videos
@wafikiri_
@wafikiri_ 11 ай бұрын
Today, I was inspecting the circuit diagram of a low-integration-level integrated circuit, the 74LS469. It's marked obsolete but it has almost exactly the traits that I need for a design of mine. [It's a low-power-consumption (L) Schottski (S) transistor-to-transistor-logic (TTL) tristate-output eight-stages presettable, clearable, cascadable up/down counter; I'd rather have the much less power-hungry, higher-speed (H) CMOS (C) 74HC469 version]. It was manufactured by several major semiconductor factories in the '80's and '90's. A fact that makes me wonder how that circuit diagram had passed the quality inspection: two of the lines were driven by opposing input signals that would have conflicted and eventually damaged the circuit, whereas nearby logic gates would have been left unconnected, floating inputs. Was that the reason it is obsolete now? Were those errors "copy diagram" ones but the original sent to production was faultless? Anyway, I've found that there is a similar one, the 74F779, that responds to a similar description: a tristate-output eight-stages presettable, clearable, cascadable up/down counter, in bipolar TTL technology. But, unexpectedly, its data input pins double as outputs, so it could not serve the exact function I was looking for (an incrementable/decrementable, multiplexable parallel transmitter/register to bridge two buses just one way). Everytime I find another such counter, it has features I do not like or lacks some that I need. Oh, well.
@Paxmax
@Paxmax 11 ай бұрын
Yeah, very weird, that capacitor on the KP219x VCC pin is normally fed from a diode on feedback winding, that would reduce/turn off the constant current trickle internally in chip, thereby increasing efficiency and reduce waste heat in switch regulator.
@martinkristensen9414
@martinkristensen9414 11 ай бұрын
Hi, I’ve been wondering if it would be possible for you to explain to all of us who are not electronic-engineers the different terms of power factor / kVa and such… Thanks a lot for very educational and entertaining videos!
@nschubach
@nschubach 11 ай бұрын
From your modifications, it looks like the chip pins 1 and 2 might be backwards on the diagram.
@ppokorny99
@ppokorny99 11 ай бұрын
The numbers are swapped on the chip package in the data sheet image. Pins 1 and 2
@therealergo
@therealergo 11 ай бұрын
I'd love to see a real close up microscope shot of that defect. Curious if you've found an etching issue in the wild.
@ababdjdj801
@ababdjdj801 11 ай бұрын
Merci.
@CampGareth
@CampGareth 11 ай бұрын
I bought one of these light fans expecting the PCB to be the same but it's not quite, e.g. The transformer near the LED connector and the chip near the mains input have swapped places. LED driver is an SIC9536BD
@ralphj4012
@ralphj4012 11 ай бұрын
Now all we need is an assessment of the weight and vibration, complete with long-term test connected to a hanging pendant set.
@ralphtaylor5328
@ralphtaylor5328 11 ай бұрын
Interesting video. What was the power meter you used after the rebuild (with 2 terminals for the flying lead)
@bazanime
@bazanime 11 ай бұрын
That's was good fanservice. 😅
@alldave
@alldave 11 ай бұрын
Very interesting
@ouyastechshow1118
@ouyastechshow1118 11 ай бұрын
nice ruler🙂
@rosiehawtrey
@rosiehawtrey 11 ай бұрын
Anyone else thinking about getting some of these, a pack of hepa filter paper and you'd have a hepa filter light fixture in every room.. From personal experience hepa paper does improve air quality quite noticeably.
@YoSmoked
@YoSmoked 11 ай бұрын
*Can we take a moment to appreciate how much work he puts into these videos for us 😍*
@dejanvanderputten3017
@dejanvanderputten3017 11 ай бұрын
Bot
@kmoecub
@kmoecub 11 ай бұрын
The mains connection (when direct wired) should be in the celing, as that's where the junction box lives.
@alphaLONE
@alphaLONE 11 ай бұрын
I wonder if that powerful fan would make the fixture dangle around if it were mounted on one of the E27 dangling cords. Would be nice to provide airflow through the room!
@robert_g_fbg
@robert_g_fbg 11 ай бұрын
You’d end up with a very twisted cord. The fixture provides the counter torque to the rotating blades.
@kimchristensen2175
@kimchristensen2175 11 ай бұрын
@@robert_g_fbg Hmmm... I wonder if the fan torque direction tends to tighten or loosen the bulb? 😁
@CG-rr6yx
@CG-rr6yx 11 ай бұрын
​@@kimchristensen2175Watching closely, one could see the fan spins right (seen from the front, obviously) so its torque is towards left, tending to loosen the bulb. Surely it has a low torque, but when vibrations add, that could slowly unscrew the fixture. Good spotting of a potential nuisance or even failure mode !
@philippinesgoodlife
@philippinesgoodlife 11 ай бұрын
Another great video Clive. These fan lights are very common in Philippines at the market to illuminate produce while keeping the flys away. Would the fan motor run in reverse if the black and red wires were swapped at the molex plug?
@bigclivedotcom
@bigclivedotcom 11 ай бұрын
No. It would potentially damage the fan.
@Lachlant1984
@Lachlant1984 11 ай бұрын
Interesting product, I think I'd like one, but in my house I don't have any ceiling mounted bare light sockets that don't either have a lamp shade around them, aren't angled perpendicular to the ceiling, don't have a cover that sits over them, or are part of a pendant light.
@mr.makeit4037
@mr.makeit4037 11 ай бұрын
Interesting video Big Clive. I didn't catch the fan motors dc voltage rating.
@bigclivedotcom
@bigclivedotcom 11 ай бұрын
About 9V.
@miroslavjusko2733
@miroslavjusko2733 11 ай бұрын
In schematic for KP219X ( 10:34 ) chip numbering starts at 2 and then 1. Maybe this is the source of confusion?
@kimchristensen2175
@kimchristensen2175 11 ай бұрын
Indeed it does. Odd that they did that.
@rafflesnh
@rafflesnh 11 ай бұрын
Thank you for doing this Clive. this is exactly the kind of fan/light I've been looking for. Would you be so very very kind as to let me know from whence it came, pretty please? 😀
@bigclivedotcom
@bigclivedotcom 11 ай бұрын
www.ebay.co.uk/itm/204280785190
@johnpipe362
@johnpipe362 11 ай бұрын
I like this.
@DigitalIP
@DigitalIP 11 ай бұрын
These have been getting popular lately, specifically the Bell & Howell version
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