Hacking IKEA 2kW Induction Cooktop, Teardown (Part 1 of 5)

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7 жыл бұрын

Teardown of the cheap single phase 230VAC induction stove from Ikea, a thorough look at the power electronics and control methods used.
Part 2, circuit analysis: • Hacking IKEA 2kW Induc...
Article with all information and pictures: kaizerpowerelectronics.dk/gene...
Forum thread with all discussions: highvoltageforum.net/index.ph...
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Пікірлер: 141

@pc-sound-legacy 4 жыл бұрын

I once had an induction stove from IKEA. Broke soon after the warranty time. My next one was an AEG. I can tell you it really is worth the plus money in every aspect, it is still running strong today at a much better handling and performance.

@basvandriel2497 2 жыл бұрын

Hey Kaizer. I know that you are no longer working on this project but, I have just spent a semester testing, researching, measuring and hacking the very same induction hob. Your videos and forum posts were very helpful to get a head start. Although my application is quite different from yours I just wanted to let you or other interested individuals know that there are some easy ways to mess with it's control systems. The resistor dividers that measure the coil voltage can just be slightly altered to trick it into thinking that it is not outputting enough power thus increasing the output power. We have also ran it at purely 325V DC which also works but isn't safe with the current relay. An alternative but unexplored approach involves intercepting the signal to the gate driver and altering it, but this was never tried. I am still working on the report but if anyone is interested you can have it if you ask for it.

@KaizerPowerElectronicsDk 2 жыл бұрын

I would love if you would post your findings on the forum thread or dump a link onhere in the comments. Its interesting that you can control the power from manipulating the voltage feedback. I was thinking about manipulating the capacitive inputs to turn it up and down. I think your way is much more simple, as it could be done with a digital potentiometer? and a microcontroller running a single PID, with a thermocouple input for temperature control.

@basvandriel2497 2 жыл бұрын

@@KaizerPowerElectronicsDk Hey there, I think both of your mentioned methods would work. A digital potentiometer and a temperature sensor could definitely get a control loop going. As for the amount of control, that is still to be tested. I know that it can do at least do +5% and -5% power so that is 200 watts of control. It can very likely do more but that has not been demonstrated yet. At some point a safety feature measure will probably kick in. I really want to try this now, but I don't have easy access to isolated equipment outside of the lab and time has run out. The report is going through it's final revisions so I can share something soon. If you have other questions feel free to ask.

@KaizerPowerElectronicsDk Жыл бұрын

@@basvandriel2497 Did you finish your paper? :)

@basvandriel2497 Жыл бұрын

@@KaizerPowerElectronicsDk Yeah I did. It was a while ago though, at the end I was the only one working on it so we never finished it :( Anyways, here is the report so you can see if there is anything useful in it. drive.google.com/file/d/1W4wX23jFN4uo4LethieTovgWbC9Mopnn/view?usp=sharing (edit) I did finish the report, just not the entire project.

@lemansroman2065 Жыл бұрын

@@basvandriel2497 Will it be theoretically possible to make it work from 48 V DC batteries without inverter?

@rokdobravec8231 Жыл бұрын

Hello! I was wondering if you maybe have any idea what did I destroy, when I touched the power on "touch spring" with the ground wire.. There was a tiny spark and after that all of the "touch springs" and display stopped working..

@iblesbosuok 5 жыл бұрын

You can build induction heater with UCC3895 for series resonant or UC3825 for parallel resonant. Cheers from Indonesia

@bogmaerke 4 жыл бұрын

Fantastisk video - lige hvad jeg ledte efter :) Ved du om det er muligt at ændre styring således at effekten kan indstilles trinløst fremfor 0-9?

@KaizerPowerElectronicsDk 4 жыл бұрын

Så skal du lave en form for encoder/drejeomskifter der pulser på +/-, men der er desværre ingen vej uden om programmet i highway ICen

@chuckvanderbildt 7 жыл бұрын

Just four your information, "hob" is a british english word for 'stove', haha! Thanks for the upload :D

@r3tr0nic 5 жыл бұрын

Yes, Hob indeed refers to stove top, cooker, cook top, etc. "Induction hob" will net you the best search result on ebay

4 жыл бұрын

Stove "top" op.

@therobinsonfamily1 4 жыл бұрын

You mean just for. Not four

@sjoerdlageweg3350 Жыл бұрын

Hi @kaiserpowerelectronics, I was wondering how did you disassembly the IKEA Tillreda?? Currently I am doing a DIY project with the internal parts of this product. Hope you can help me with this. Looking forward for your response.

@dalerobinsuk 5 жыл бұрын

I tore my Ikea Tillreda down to have a look as I'm an electronics engineer and like to see how things are made before I use them for safety reasons and curiosity. Also I do not think the LED Segment display is bright enough for "Camping" so first thing I did was peel off that protective sheet off the display, I may fit a different LED Segment display or change the resistor to increase brightness. Also interestingly I also bought a VonShef branded unit as it I read it had a 200mm coil, even looking a the glass the pan placement gives you the impression it has a larger coil than usual. But it was only approximately 160mm when I took it apart and measured it, not only that the spacing between the coils were bigger and much less coil metal used! The Ikea Tillreda seems to have the biggest coil I've seen on these portable units. I wish there were more teardowns of these products as there a few on the market and I don't believe the specifications.

@KaizerPowerElectronicsDk 5 жыл бұрын

What I found the most interesting was how well it was functioning despite it is a topology working right at the edge of what is possible on both mains outlet, components used and physical dimensions taken in account.

@_Donald_Duck. 3 жыл бұрын

Ikea says that it's coil size is 185mm in diameter. Is it safe to switch original coil for a bigger one like 230mm?

@rashadabdullah9769 3 жыл бұрын

Interesting, did you try suing the manufacturer for false advertising? My major concern with induction stove tops is reliability. They have for more components that can burn out or stop working than a regular hot plate or gas stove. Its not very simple for some diy to try to isolate problems on a circuit board such as bad resisters or popped capacitors or maybe a fried ic.

@dalerobinsuk 2 жыл бұрын

@@KaizerPowerElectronicsDk Ikea have another version of this out, it's smaller but has the same specifications, it has only 4 buttons now but still has the annoying "Child Lock" I bought one this evening as it looked a good size to take camping. It has an annoying issue, even though they have corrected the Piezo Buzzer/Fan issue, the Piezo constantly makes a very quiet high pitched sound, which is annoying! There must be some noise from the MCU or bad programming. I took it apart and it is also a Highway design and it has even less components! They didn't even bother to install the filter capacitors on the primary side, the PCB has locations for them but they cheaped out.

@monica.v Ай бұрын

How did you open it? Please help

@boazfortuijn4774 3 ай бұрын

7:50 How did you overwrite that? I cant find your explanation of it and i only see part 1 and 2 of this series. Cheers Boaz

@manikandanmani5209 6 жыл бұрын

Cooktek 3500 E06 how to repair ready

@joea4637 6 жыл бұрын

Can you make a small nut and bolt heater out of that set up by removing the flat coil and build a round coil and use like a handheld unit ?

@KaizerPowerElectronicsDk 6 жыл бұрын

The large inductance needed in the work coil will make it unpractical for a small handheld unit, any size coil you want to use instead will need to be much like the original, in terms of inductance.

@joea4637 6 жыл бұрын

Kaizer Power Electronics hey thanx

@hvguy 6 жыл бұрын

my guess with the beeping and the fan is like on brushless motors for drones and other planes; it uses the motor for a speaker briefly... kinda like taking a HDD apart and using it for a speaker...

@KaizerPowerElectronicsDk 6 жыл бұрын

It is a good idea to minimise number of components, but there is actually a piezo beeper in this unit, you can see it at the right side of the PCB at 05:06

@gweid 6 жыл бұрын

Kaizer Power Electronics I think the fan and the buzzer may share the same IC output: beeps in AC, uses fan in DC!

@user-blabla-47854 6 жыл бұрын

I got a similar appliance few days ago, from other brand. For power level set to less than 1000 W, it utilizes pulse mode - heating with impulses of 1000 W and making pauses between. Burnt my porridge as a result when I stopped to mix it. Total crap. I wonder whether IKEA hob uses similar mode or not.

@KaizerPowerElectronicsDk 6 жыл бұрын

Take a look of the part 2 video I made on this, here I explain the waveforms and you can see that it operates at a lower voltage at the lower power modes, but primarily it is still in pulses, but certainly not in the maximum power pulses.

@vkdirector3087 Жыл бұрын

hey kaizer, nice videos im looking to do something slightly different !! i have a dual hob is there a way to limit current draw for each hob or the entire unit combined its for running off an off grid inverter and wanting to limit its output cheers

@KaizerPowerElectronicsDk Жыл бұрын

Find out what the maximum level of each zone, is that you can run and stay below your power use threshold. But limiting its power is the same as limiting its output, so what good is it if takes hours to boil a pot of water?

@vkdirector3087 Жыл бұрын

@@KaizerPowerElectronicsDk i was going to wright out 20 paragraphs but figure it would be easier to just link a video to one of our competitors to show u what were are looking to do limiting them for not going over our inverter capacity kzfaq.info/get/bejne/Zq17hMmJy72tY2g.html hope u dont mind the link cheers mate

@MaxKoschuh 6 жыл бұрын

great video I have seen this stove at a friend's house and always wondered what's inside. For any reason he did not let me tear down his unit... with less electronics inside it is possibly more reliable than other, more expensive units

@KaizerPowerElectronicsDk 6 жыл бұрын

The fewer components is only a result of a cut-down on load overhead, functionality and safety :(

@hr....d5241 5 жыл бұрын

what is the whitish product above or in the middle of an induction stove

@KaizerPowerElectronicsDk 5 жыл бұрын

Its a over-temperature switch/sensor

@davekni 4 жыл бұрын

It appears that most induction cooking uses this flyback topology with a single transistor. I gather that some use a series-resonant circuit from a half-bridge. I've never heard of a Royer oscillator being used for induction cooktops. With a pan in place, the Q is too low for a Royer oscillator to maintain oscillation.

@KaizerPowerElectronicsDk 4 жыл бұрын

Simply because it is so dirt cheap to make and you are almost always limited to 230VAC 10A

@zazio5535 3 жыл бұрын

Any possibility to use a SiC Mosfet and increase the switching frequency to like 70kHz? Panasonic used to have such a induction cooker called Met-all, could be used with Aluminum cookwares...

@KaizerPowerElectronicsDk 3 жыл бұрын

SiC MOSFETs uses a asymetric gate drive from typical +20 to -5, so you need to rebuild the gate drive circuit for that. Swithcing frequency is not easy to change in a IH like this, they are designed to work right at the edge of what is possible with so few parts. From the original 25 kHz, you can not change that to something 25-50% without blowing up the MOSFET and bridge rectifier.

@zazio5535 3 жыл бұрын

@@KaizerPowerElectronicsDk Hi Kaizer, thanks a lot for the detailed answer. What I think of is actually drop-in a SiC AND crank up the frequency. The gate drive circuit definitely need some change, and DC-Link Caps must be of higher voltage to withstand ringing from faster switching etc :-)

@examplerkey 3 жыл бұрын

Hello Kaizer. I'm repairing a similar one, almost exactly the same. At the centre of the coil are two sensors: temperature cutout and another one that looks like a glass diode, I'm not sure. It's open to the meter. If you know please let me know. Many thanks.

@KaizerPowerElectronicsDk 3 жыл бұрын

I think it could be some kind of reed switch to react to the magnetic field.

@examplerkey 3 жыл бұрын

@@KaizerPowerElectronicsDk Thank you very much for your direction. Sorry for the late reply. It looked like a glass diode, but it wasn't (yes the other one was a temp cutout). It's glass to withstand the temp, but its electrical characteristic was more like a thermister, so it must be. It turned out that the IGBT gate resistor 200K was the culprit.

@basvandriel2497 2 жыл бұрын

One is a temperature sensor, the other one is a thermal fuse that disconnects power from the low voltage electronics like the 18v flyback, 5v linear reg and the mcu.

@HiAnonym 3 жыл бұрын

Is it possible that they used the fan as the beeping device?

@KaizerPowerElectronicsDk 3 жыл бұрын

That could explain that is takes half a turn

@HiAnonym 3 жыл бұрын

@@KaizerPowerElectronicsDk Like I'm really not sure but maybe if you put an AC current trough the fan it makes a sound with the frequency of the current

@luis11347 Жыл бұрын

I have a question, well I have an induction fryer, I have a short circuit in the IC in my case it is the HIGHWAY13A instead of the HIGHWAY09A. I've been researching and I see that both are similar. Although my doubt is it possible to get this integrated circuit already programmed or does it require extra programming. I was thinking of buying it on Aliexpress but I'm afraid it won't come programmed. I hope you can answer me

@KaizerPowerElectronicsDk Жыл бұрын

From a software control point of view, it makes sense that Highway sells them preprogrammed. But we dont know for sure.

@luis11347 Жыл бұрын

@@KaizerPowerElectronicsDk I hope so, I have contacted two sellers to confirm if they really come programmed.... Coming from China I at least hope to have my induction cooker repaired before Christmas. Thanks for answering Greetings from 🇲🇽

@First2ner 7 жыл бұрын

The reason fan slows down is, because it tries to find resonance freq. and it draws power, even when there is no metal to heat up. It finds out there is nothing metal on top and stops (beeps)

@KaizerPowerElectronicsDk 7 жыл бұрын

It would make sense that it breaks its PWM output, but I would not have put the fan code into that same loop :)

@mancave7879 5 жыл бұрын

I hope you have already checked the schematics. As in most simple designs, the control for the cooling fan and the buzzer share the same port of the MCU. Therefore, in order to generate a 'beep', the normal DC supply to the fan is interrupted and replaced by a pulse train during the beep sound.

@dkdyker 4 жыл бұрын

Is it possible to make this work from a battery

@KaizerPowerElectronicsDk 4 жыл бұрын

Only if you use a battery to 230VAC inverter, as the circuit relies on the sinus envelope of the 50 Hz mains to work properly.

@pollybrand 3 жыл бұрын

Tell me, please, did you smell of plastic when the device was in operation? If yes, from which part do you think? Thank!

@KaizerPowerElectronicsDk 3 жыл бұрын

There was no weird smells or unexpected heating in my unit. It could be a part of the primary LC circuit of the work coil and resonant capacitors as there is where you have the highest heat dissipation.

@pollybrand 3 жыл бұрын

@@KaizerPowerElectronicsDk Thanks for the answer! It's great that you didn't have a smell .. I hope it will pass with us over time, if it is possible.

@chrisliddiard725 Жыл бұрын

I have an Ikea 2kw Cooktop. A solid-looking device that i broke. Totally my fault. I basically unplugged it with the fan still running, before it had cool down. It's probably a simple fix, but i can't find the overheated component, which is either a heat sensor or MOSFET. Im still looking for a clue.

@macbrown6587 6 жыл бұрын

mine blew the internal fuse changed the mosfet and it still blew so i dont know

@KaizerPowerElectronicsDk 6 жыл бұрын

Did you check the bridge rectifier? Is the DC bus shorted?

@houssammanhouss2023 5 жыл бұрын

can it be hacked to be used with any recipes like ceramique or alum...?

@KaizerPowerElectronicsDk 5 жыл бұрын

No, changing the control of a induction heater can never bend the laws of physics.

@M.Almorri 5 ай бұрын

لو سوينا مكثف واحد فقط سعة ٢ او ١.٥ ميكرو فاراد بدل الخمسه

@BushLieWorldDie Жыл бұрын

I Want to ask you a question. Does this type of induction stoves come with a sensor that senses if there is a pot on the stove? If they do is there any way to bypass it? I Want to be able to run a induction stove at max power without any pots and pans on it does that work?

@KaizerPowerElectronicsDk Жыл бұрын

Pot sensing is done by measurement of current flow in the primary resonant circuit. The only way to bypass it, is with a custom driver IC. Running full power on a non-loaded induction system has quite a lot of losses and worst case you blow up your IGBT bridge from the very varying load.

@BushLieWorldDie Жыл бұрын

@@KaizerPowerElectronicsDk Ohh so the Flow itself is meassured. What i want to do is have a external load trough a pickup coil on the stove.

@richi9371 Жыл бұрын

Any idea how thick the glass is and if it could be saparated? It looks like 2 pieces are glued together...

@KaizerPowerElectronicsDk Жыл бұрын

5-6 mm, I doubt it could be taken apart without breaking one of the glass plates

@richi9371 Жыл бұрын

@@KaizerPowerElectronicsDk actually don't mind one broken just wondering how they stuck them together and why would they use 2 instead of one i rly badly need a ceramic glass plate for my bga rework machine as bottom part above the heater plate so i have a flat surface to rework motherboards on and this one had perfect measurements, just thick glass

@richi9371 Жыл бұрын

@@KaizerPowerElectronicsDk do you by any chance still have the thing at home somewhere? I think the bottom layer is actually plastic

@daijoubu4529 2 жыл бұрын

Can the 120V version be modified to be ran at 240V?

@KaizerPowerElectronicsDk 2 жыл бұрын

All components are properly too low voltage rating, you might need to change all.

@CliveChamberlain946 7 жыл бұрын

Is this common for these to use Litz wire in the work coils? Ha, funny about the fan RPM changes.. likely some poor programming in that micro-controller (just peel back that sticker, any bet's it's a PIC?).

@First2ner 7 жыл бұрын

it is, the most cheap one has them too, not many strands, but still enough to say it is one

@KaizerPowerElectronicsDk 7 жыл бұрын

I have only seen Litz wire in all the induction stoves that I have taken apart, but multiply twisted wires is not always a guarantee for quality, on some of the Chinese induction cooker websites they advertise with their product using "clean" copper Litz, so there is without a doubt some really dubious quality copper out there. Beneath the sticker you can see its a HIGHWAY09A microcontroller, it comes from a Chinese IH manufacturer, I only tracked it so far to possibly be a Holtek microcontroller, you can see all the information I found here: kaizerpowerelectronics.dk/general-electronics/hacking-ikea-2kw-induction-hob/

@CliveChamberlain946 7 жыл бұрын

Litz wire increases the skin area so conducting power at HF works better.. what frequency are they using?

@KaizerPowerElectronicsDk 7 жыл бұрын

I will get into more details on this in part 2, but its resonating at 22.5 kHz

@MrRikkitikkitavi 6 жыл бұрын

Just above audio range. Idling perhaps at 30 kHz, and frequency goes down while loading. The skin effect is not so pronounced at these frequencies, but it is important to have a large crosssection area due to the circulating currents. And as most of these stoves are more or less made by small female chinese hands , bending a thick copper wire with 5 sqmm is not going to do well...

@_Donald_Duck. 3 жыл бұрын

Ikea says that this induction stove coil size is 185mm in diameter. Is it safe to switch original coil for a bigger one like 230mm?

@KaizerPowerElectronicsDk 3 жыл бұрын

In terms of switching losses, a larger coil would have a higher inductance, resulting in a lower resonant frequency, so you are not going to burn your IGBT or bridge rectifier. In theory it should work!

@_Donald_Duck. 3 жыл бұрын

@@KaizerPowerElectronicsDk BTW, this IKEA TILLREDA cooktop, makes strange buzzing sounds from my IKEA pan. It doesn't happen from 4 coil induction cooktop. Does the nature of this buzzing sounds can worsen my pan in terms of heat transfer from ceramic hob? I added videos with this sounds on my channel, you can hear them on last two videos. And I looked other people's videos with their IKEA TILLREDA, they all had same buzzing sounds (expect not that loud).

@KaizerPowerElectronicsDk 3 жыл бұрын

I do not see any videos with that on your channel?

@_Donald_Duck. 3 жыл бұрын

@@KaizerPowerElectronicsDk I forgot to change it availability. Now you should see it

@_Donald_Duck. 3 жыл бұрын

@@KaizerPowerElectronicsDk here is a direct link kzfaq.info/get/bejne/n5uqd9GenJywaac.html

@agius2 3 жыл бұрын

What is the exact diameter of the coil? Is it really 18.5cm?

@KaizerPowerElectronicsDk 3 жыл бұрын

I just measured, its 180 mm large outer diameter

@w.dkalyan6234 3 жыл бұрын

Sir i have induction stove but I am not using it so i want to convert into induction heating coil spring So please help to me sir is there any advice or instructions for it please don't forget my request sir please .....

@KaizerPowerElectronicsDk 3 жыл бұрын

I hope to make a video about that soon

@w.dkalyan6234 3 жыл бұрын

Sir thanks for your kindly respond sir please make a video on my request sir please don't forget me sir 🤝

@monica.v Ай бұрын

Can you tell me how did you open it?

@KaizerPowerElectronicsDk Ай бұрын

Screws on the backside, some are hidden under labels. The glass plate is glued in place, that needs to be removed carefully, cut around it with a knife.

@monica.v Ай бұрын

Thank you so much for your super quick reply ❤️

@First2ner 7 жыл бұрын

funny how it looks almost the same as the one I took apart, just controls are different, everything else it at least 99% the same

@KaizerPowerElectronicsDk 7 жыл бұрын

I agree, from browsing multiply Chinese manufacturers websites, its all the same, actually they have rather high quality units for their own domestic market, but the cheap OEM shit that is sold to the rest of the world is terrible. They are not to blame, we are, for only buying the cheapest.

@EpicHardware 2 жыл бұрын

im curious can this is powered with dc instead of ac ? Im thinking that since it has a rectifier to make it dc can we just skip this step?

@EpicHardware 2 жыл бұрын

i have couple solar panels providing me with ~200v dc without a inverter at the moment so i want to do something with them

@KaizerPowerElectronicsDk 2 жыл бұрын

No. The quasi resonant mode utilizeses the AC mains waveform.

@EpicHardware 2 жыл бұрын

@@KaizerPowerElectronicsDk plan b :P what if i use a igbt to pulse 100 times a second the dc voltage (same polarity, no flipping), does it need to be sinewave?

@KaizerPowerElectronicsDk 2 жыл бұрын

@@EpicHardware most likely needs to be a sine, as power is adjusted with a phase angle on the rising edge of the sine wave. Run the square wave through a output chokes for a sine wave, like a regular cheap UPS

@EpicHardware 2 жыл бұрын

@@KaizerPowerElectronicsDk awesome, thanks for your anwsers. One last thing, is any other method for induction cooker that can work with DC? Maybe I can search for it try it and post my results

@markhodgson2348 4 жыл бұрын

Build a capacitor bank and put the coil across it ,great channel, or build a T.D.R detector

@KaizerPowerElectronicsDk 4 жыл бұрын

Thank you! It does not handle change in resonant frequency very well, in fact it takes almost nothing to make the IGBT explode :)

@markhodgson2348 4 жыл бұрын

@@KaizerPowerElectronicsDk IGBT haha use traditional technology

@St4hlz 3 ай бұрын

Jeg ved det er mange år siden denne video er kommet ud, men ved du om der en mulighed for, at man kan omgå timeren på pladen? Den slukker automatisk efter 2 timer hvilket er vanvittigt frustrerende hvis man vil lade noget koge hele dagen.

@KaizerPowerElectronicsDk 3 ай бұрын

En simpel 555 timer kunne vel bruges til at trykke på knapperne, men det udgør en stor brandfare som du selvfølgelig skal sikre dig imod på anden vis.

@St4hlz 3 ай бұрын

@@KaizerPowerElectronicsDk Ja, det var kun til at koge fond og lign., så man skulle synes brandfaren var lille. Lyder interessant med 555 timer, da jeg ikke har nogen erfaring indenfor kredsløb, men det må undersøges. Tak for hjælpen!

@Ulisito1954 4 жыл бұрын

As, I have noticed that IKEA is selling two different model, one with 2000watts (220v) and the other with 1800watts (110v): www.ikea.com.do/santodomingo/mobile/en_us/product/tillreda/portable-induction-hob/?&item=169119&id_src=16 I would like to know, apart from the 200watts of difference between these two models, do they really work in the same way? I would also like to know, if in practice, you really notice this small difference of 200 watts when cooking food?

@KaizerPowerElectronicsDk 4 жыл бұрын

They work in the same way. The lower voltage version will just have rectifier and IGBT rated for twice the current and perhaps a lower voltage. 200W is 10%, so you should be able to see a difference in cooking time, but noticeable when making food, not really. Maximum power is often only used for heating up fast for frying or cooking water, regular cooking is almost always at some 50-75% power.

@TychoHupperets Жыл бұрын

that coil is quite large for a cheap plate

@billcogneeto7286 2 жыл бұрын

I cannot hear what you are saying. Why set such a low volume.

@MeepMeep88 5 жыл бұрын

I want to cover that annoying beeping sound. It's annoyingly loud

@anandhkumar2253 4 жыл бұрын

Anandkumar

@0top566 4 жыл бұрын

thes 👍😁or👎😪??????????????????

@JohnWilkinsonTesla Жыл бұрын

Watching in 2023

@unmanaged 6 жыл бұрын

your audio is low...

@KaizerPowerElectronicsDk 6 жыл бұрын

Could you check my latest video and tell me if it is still a problem?

@taxicamel 6 жыл бұрын

Is there any products not made in China these days? It is too bad that local workers have demanded so much, principally because of unionization .....and now China is the manufacturing center of the world.

@KaizerPowerElectronicsDk 6 жыл бұрын

Giving the work force the blame for outsourcing is a pretty far reach. The middle class you have today, is because of unions and general heightened living standards from the higher pay rates. It is the owners, the manufacturers and rich that keeps seeking a maximum profit by taken advantage of the lowest possible salaries around the world. But they are not to blame alone, you the consumer has the power, if you want to change the market, buy your locally manufactured goods.

@taxicamel 6 жыл бұрын

You comment response is your opinion ...to be respected. I am voicing the reality from the majority who do the purchasing. People will look for quality, but will buy on the measured evaluation. Most all mass-produced products that people buy every day are automated to a great extent when possible, but labour is still needed to a lesser degree. Those products that use a lot of labour, have no choice but to compete globally, hence the manufacturers, like clothing, who need to compete, have no choice but to outsource. How many people actually purchase $500.00 jeans? Probably the 1%. The remaining 99% are going to pay $50 tops, for a pair of jeans ....and these jeans cannot be made in North America. This change in sourcing manufacturing started 40 years ago. Today, not one televising is made in North America. The induction cooktop in this article was made in China. There is not one manufacturer in NA who can make this product and sell it for $69. Fact. Look at any kitchen appliance in any store ....and you will not find one that is made anywhere else than Asia. There is a reason ....and it is NOT the fault of the consumer. It is the fault of NA labour costs ....nothing else. And I repeat ....you are entitled to your opinion. I am merely stating facts ....it is not an opinion. It is a sad situation.

@KaizerPowerElectronicsDk 6 жыл бұрын

I disagree 100% on singling the problem out to be labour costs. That is the same as saying that you want all the manual labour in NA to be living beneath the poverty limit, in order for them to manufacturer goods in NA, for NA citizens to buy. I see no winners there, but those that already win today, the rich.

@taxicamel 6 жыл бұрын

You obviously don't understand manufacturing. The hard costs, the physical stuff, the tangible stuff, is searched out for best/cheapest price, and bought. These costs are now known. Then there is the labour required to build or make or assemble. No different. They search out the best/cheapest price ....and do the deal. When living costs are significantly lower in ANY country .....NA CANNOT COMPETE. So I have no idea how anyone can not comprehend that "singling out" these costs is how products are made. The "poverty line" IS in fact different ....and significantly lower, big time, in other countries ....hence NOTHING that needs a lot of labour, is going to be built in NA. Facts are facts .....not to be changed by "discussions" ....and certainly "opinion" has no affect on fact. You yourself tore apart a unit made in China. I don't know where you live, but I assure you, that this unit is made in China for one reason .....COST .....which also includes ALL additional costs such as shipping, handling, tariffs or duties or taxes that may apply .....otherwise, if it COULD be made in NA ....it WOULD be. Your two reference to the "rich" reveals you have a negative attitude towards the "rich" ....hence are merely trying to come up with some argument to protect labour ......regardless of the facts. No point in going on with this thread. I know where you are coming from.

@KaizerPowerElectronicsDk 6 жыл бұрын

And I know where you are coming from. Have a good day.

@turi-geza 3 жыл бұрын

Waste of forest : )

@tttuberc 3 жыл бұрын

I have an 1800W 120V induction cook top that has the resonant capacitor (the large 8uf MKP X2 cap) blown. I replaced it with another 8uf 275v AC (not same brand or model) capacitor but it also blown shortly. Any idea if I can use other high voltage metal film capacitor?Or does it have to be some special caps that work at high frequencies? Thanks very much

@KaizerPowerElectronicsDk 3 жыл бұрын

How long did it work with the replacement capacitor in? The resonant capacitor does not usually blow, but would more likely melt. Sounds like you have other problems that kill the capacitor.

@tttuberc 3 жыл бұрын

@@KaizerPowerElectronicsDk it worked for about half an hour before it swolen up and stopped. The physical package size of the replacement cap somehow was only half of the original size even it from same manufacture and rated at same capacity and voltage (275v AC, 400v DC, 8uF). I'm waiting for another cap from Aliexpress to see if it fixes it.

@KaizerPowerElectronicsDk 3 жыл бұрын

@@tttuberc Okay, sounds like you just need to find a proper high frequency MKP capacitor then. X2 capacitors are MKP capacitors rated for being used in input filters of power supplies, they just happen to have similar ratings to those MKP capacitors used in resonant circuits. You need to find some with low losses and high RMS current capabilities.

@tttuberc 3 жыл бұрын

@@KaizerPowerElectronicsDk thanks for your advice. I recieved the correct caps, and now the cooker works fine so far. Knock on wood