SSTC pt. 11 - Mains voltage test & induction heater experiments

Today, let's test the IGBT halfbridge of my Solid State Tesla Coil using mains voltage and an inductive load. Let's also do some random experiments with induction heating and wireless energy transfer.
The first episode:
• SSTC pt. 1 - intro
The next episode:
• SSTC pt. 12 - First sp...
Please support this channel on Patreon:
/ diodegonewild

[@rnbv3418]

A disappointment is when you come home from a 150km bike ride with a former pro tour professional, you take a shower and lay on the sofa and there is not a new video from DiodeGoneWild.

[@R4MP4G3RXD]

4:06 a safety beer is very important while doing any project :D

[@DonQuichotteLiberia]

Especially with mains voltage.

[@starrlucky6549]

How can you drink beer and think straight Especially with electricity

[@jakubladman5113]

@@starrlucky6549 I can't recommend drinking beer while tuning the mains powered electrical circuit. But one beer, especially of the low alcohol percentage as we usually have in Czech beer, isn't too much. In many countries, but not here in the Czech republic, where we (me as well as the DiodeGoneWild author) are living, is perfectly legal to drive a car after drinking one.

[@starrlucky6549]

Well I guess this is individuall. For me even one bottle reduces sharpeness of the mind, even tho I don't feel myself drunk. There is a joke in programmers circle that your productivity lineary rises with beer consumed (to certain point). In physical world it's different. ) I've tried one beer in my old job with small electronics repair -- I just felt that I can overdo it with overconfidence of my hands movement by the microscope. (And I did). I've tried once with amp repair at home (but it was more than one.. beer), I missed solder piece somewhere, and after that it got strange artifact, blew up after. I guess I will not try it with mains voltage ever. Even sometimes I had to work with mains, I still fear that. After one bottle, I guess fear will be smaller. (Ever heard about drunk electricians?).

[@kolinevans9127]

Starr Lucky I personally think it helps

[@Vigilant_Patriot_Media_LSA]

This guy is my hero. Pushes the envelope... but safely...ish. Been subbed to diode for 3 years and he always comes through with quality!

[@Miata822]

When a temporary fix becomes permanent. I am too familiar with that phenomenon! I am quite surprised by how much power is being dissipated in the snubber network resistors.

[@rickjljr11]

that don't need to be there. I don't think he reads any of the comments.

[@aivansama6265]

Nothing is more permanent, than temporary solution which works.

[@1pcfred]

With the molten solder joint situation going on I think he'll do a better fix.

[@superdau]

That temporary solution really has to be fixed! I suggest 9 resistors in a 3 parallel 3 series configuration!

[@rushb9388]

@@rickjljr11 explain why they don't need to be there

[@1pcfred]

Congratulations on a successful power up. Plugging circuits into mains is always a pucker moment. There's lots of energy potential there.

[@DrHouse-zs9eb]

The fire extinguisher joke never gets old :D

[@1pcfred]

I've used beer to put out a carburetor fire. There's something about flames next to a fuel line that has a strong motivational effect on me. Nothing tops the flame that was on my acetylene cylinder once though. I was so scared it took me like 3 tries to blow it out. The first two times I blew I could barely get a breath out. Was pretty funny.

[@danfish95]

I can't wait for the next part! Have been checking twice a day for the past week. Awesome work

[@isojed]

Excellent serie! Eddy currents at work nice.

[@pip5461]

I am always impressed with the amount of work you put in, to provide a unique setup. Always interesting and informative... together with a comical side...

[@tonysfun]

Thanks for your videos! I like that you have explain in the previous videos how you came to this design and why you use these parts - including being aware of the cost! Have a great Weekend!

[@lakiza55]

Thought it was just me crossing fingers when plugging something i created/repaired in, until i saw an electician with over 50 years of experience cross his fingers and brace for impact when plugging in a repaired induction heater.

[@1pcfred]

Electrons are real sticklers when it comes to circuitry. They let you know what's up.

[@AKAtheA]

big semiconductors = big explosion if they fail ;-)

[@dnorby6990]

The best youtuber that makes you enjoy the electronics . Thank you wery much.Diode gona wild.

[@jessicaganser2982]

Thank you so much for all those videos and after this series I will build it.🙂

[@andrewsmith3081]

Loving this series, thanks!

[@5478Ashley]

4:06 Finally he uses different fire extinguisher, the green labelled Žatec

[@brucel.6078]

Amazing!! I enjoy your genius mind! Thank you!

[@grins047]

I really love your videos. Keep it up and thank you.

[@stephanc7192]

I really enjoy this series

[@rnbv3418]

Great! By far my favourite channel.

[@mohalothman99]

Excellent 👌, the true men who play with main without fear 😄

[@tetraederzufrequenztesla2342]

It was wonderful. Thank you

[@DolezalPetr]

always odpory, moje oblíbené

[@JCarlosXJ]

bigclivedotcom approves security beer ;D. Excellent content.

[@pranavramesh4888]

Why do you need the 0.24 ohm 5w resistor at 0:23 in series with the rectified mains input?

[@matid8453]

nice film and nice test I'm want to build SSTC half bridge

[@ventilator2227]

Hi do you mind telling me where did you buy your capacitors for the tesla coli(MMC)

[@daviddirtican87dirtican84]

tie cievky:D na pracovnej cievke je ake napetie? ja experimentujem momentalne ale chcem to galvanicky odelit ale aj tak ake napetie sa tam indukuje lebo merak mi to nezmera

[@omsingharjit]

Where is the video of matching resonance of both tesla coils ?

[@janzahradnik8089]

Can I driving IGBT transistors via HCPL 3120?

[@aldebaranflash2663]

top job

[@teardowndan5364]

I wouldn't have dared turning on a mains-powered DIY project without some sort of lid on top of it in case something went boom. I use a large glass jar wrapped in cling-wrap (glass in case of fire, cling-wrap on top to contain shattered glass in case of explosion) and a remote switch.

[@mysock351C]

4:00 As Eric O says: "Its only temporary if it doesn't work."

[@matthiasfreiburghaus4202]

So just by passing by you have discovered a new metal processing technology: inductive foil cutting.

[@thisfeatureisbad]

He attac He protecc But most importantly, he *bacc*

[@darekmario446]

I promised to make a SSTC with you... but i dont wanna use Mains :c Is it possible to make it ALL the way you made (Because your explanations are perfect) but for more suitable Voltage and current? I have 10A 24V Trioidal transformer laying around ;)

[@keithking1985]

What level of capacitance are you going to drop the snubber cap's to???

[@uK8cvPAq]

4.7nF

[@techs5564]

i made a same fire extinguisher with alcohol added and some water. will it work?

[@jakubladman5113]

No, it has to be a Czech beer :-) It has only around 4.5 % of alcohol, but lot of taste.

[@techs5564]

@@jakubladman5113 ok i will update when I'm done.

[@RAVI171175]

You are a great man of wisdom & it's always a great pleasure for me to watch all of your videos. Your lovely cat is just adorable & it only wants daddy's attention & that's why we see it sitting on your explanation papers. Animals are more like our own kids nowadays & they are our friend when we are all alone. One question though! Can we use a separate voltage regulator 7812 to power up that IR2153 chip? Have you tried it? I'll appreciate if you try it & let me know . Thanks dear friend. Keep it up.

[@Alexandreklechowicz]

Hope part 12 will avaliable soon

[@drobotk]

Well he usually uploads a day after posting to patreon, and it's not on patreon yet, so you can expect part 12 tomorrow or later

[@Alexandreklechowicz]

@@drobotk Thanks

[@drobotk]

@@Alexandreklechowicz I'm pretty sure he will upload part 12 today :)

[@gabest4]

How dangerous is to use extension cables when most of it is coiled up? Can you get shocked by putting a cable or something electric near it? I'm thinking of lawn mowing. (Hm, probably not, because it's two wires.)

[@redoverdrivetheunstoppable4637]

this kind of "induction heating" is too inefficient, at mains frequency you need an iron core and lots of turns to transfer power, the one you saw in the video runs at like 150khz... anyways as you said beeing two wires in the extension cord, one coming and one going, the inductive effect cancels itself, that's how they make anti-inductive power resistors, it's a coil turning once and going back the same path a second time

[@deltab9768]

There is a possible problem with powering a high power load with a coiled extension cord. It can't dissipate heat as well when it's coiled, so a 15a cord might be rated 10a or less when coiled. I think diode did a video about this a while ago. But no, it won't have any noticeable inductive effect.

[@wahyupans8868]

Next is "Make simple induction cooking" , maybe ?

[@richardnanis]

Next time: please build a good and powerful induction heater :-)

[@johnnyfivejmc]

Today- a baking tray, tomorrow the world!

[@MiguelBaalm]

You could try to use a fan for the resistors.

[@ayyadew]

Please make a high power simple induction heater

[@DiodeGoneWild]

I may try to use this as an induction heater too :). Just rewire the input to a bridge rectifier and give it some coil, resonant capacitor bank and impedance matching transformer.

[@rkan2]

Liquid cooling next video!

[@raer7844]

6:25 some older ghost is coming for remember of edison's quilty.

[@skylinelapse]

Waiting for a new video :)

[@satyanarayan5602]

Sir please give the full circuit diagram. To make it.

[@tanner1985]

As strange as it sounds, I don't find the components anymore on any decent supplier. The gate driver is gone, and the IGBTs are also gone.Obsolete

[@johnconrad5487]

Induction cookers are not made for low resistance metals. It needs an iron skillet. Aluminum is low resistance. Replace the 5 dropping resistors (3.66K) with a series cap and add a Zener diode across the IR2153. Make the circuit the same as THE INPUT STAGE TO A VOLTAGE DOUBLER. Make the series cap sufficiently large to supply the current you need to run the circuit. Pd across the snubber Resistors = 0.5 C V^2 F. so yeah the resistors will heat up because you have large snubber caps. Move two of the 2.2uF caps that are furthest from the IGBT's and place them directly on the IGBT's . This should reduce the inductive spikes so you dont need such a heavy duty snubber. You can make a current transformer using a Ferrite toroid (Not powder Iron) to measure the high frequency current thru the fat wires.

[@manjunathvishnumoorthy7479]

IR2153 has an integrated zerner voltage clamp. The series resistance is to limit the current when the zener enters breakdown.

[@jakubladman5113]

No it isn't Pd = 0.5 C V² F, but Pd = C V² F, because per one switching cycle there are two energy transfers, charging and discharging. What's also notable (about this formula) is that the power dissipation is completely independent of the resistor (ohmic) value.

[@simontay4851]

What the hell is "Pd = 0.5 C V² F, but Pd = C V² F" supposed to mean. What is C V^2 F for a start.

[@simontay4851]

What the hell is "Pd = 0.5 C V² F, but Pd = C V² F" supposed to mean. What is C V^2 F for a start.

[@jakubladman5113]

@@simontay4851 Well, some electrotechnical basics: Pd is Power dissipation, that's what gives the heat to the snubber resistors, C is snubber capacitance, V is the supply voltage (in this case it is the half cycle rectified mains) an F is the switching frequency, which is around 100kHz as said in one of previous videos. The formula is based on the fact that the energy stored in capacitor is E[Joules] = V[Volts]^2 * C[Farads] / 2. This energy is transfered two times every switching cycle, one time for switch on, one time for switch off. This is factor 2 which cancels out with the divide by 2. There are F[Hertz] switching cycles per second. One Joule per one second is one Watt. So the power dissipation of the snubber resistor is Pd[Watt] = V[Volts]^2 * C[Farads] * F[Hertz]. Just in case you don't know it, while charging a capacitor from a voltage source, or from another capacitor, the energy dissipated on the resistances (including parasitic) is equal to the energy stored/removed in/from that capacitor, not depending on the absolute value of the resistances.

[@electronic7979]

👏👏👏

[@dnorby6990]

Are you a pnp transistor?!😊😊

[@electronic7979]

@@dnorby6990 yes ☺

[@dnorby6990]

Diode gona wild is the best !😊😊😊

[@electronic7979]

@@dnorby6990 ☺

[@davidwang_music]

Is it possible to use a capacitive dropper for powering the control chip rather than using a bunch of burning hot resistors and a waste of energy?

[@DiodeGoneWild]

Yes, it is, but a capacitive dropper is a bit tricky in a place where there is a lot of high frequency ripple. Capacitors have low impedance for high frequencies. The interference from the mains would go into the chip. It's much safer to use resistors. They dissipate about 6-7W, which is negligible in a tesla coil that may finally draw over 1kW and definitely isn't ment to run 24/7.

[@davidwang_music]

@@DiodeGoneWild Thank you so much for the explanation! I have a low voltage half bridge driven by NE555

[@drobotk]

I'm still too scared to plug it in mains after blowing one chip with 50V even though I added the missing components and it should be fine. I probably just need a variac :). Oh, and I have a question. Can I connect the negative of the rectified mains with the negative of my 12V SMPS for the chip? Thanks :)

[@DiodeGoneWild]

You can as long as yout 12V smps doesn't have a grounded output.

[@drobotk]

@@DiodeGoneWild Good to hear, it just has a flat plug :)

[@oniruddhoalam2039]

@@DiodeGoneWild Can you make a video about class C amplifiers? I saw some articles about it on the internet, but I couldn't understand anything.

[@inseries5494]

@@oniruddhoalam2039 why would you need class c amp? it's only usage is in HOPA and you are not into that if you dont understand

[@instrumental_music2521]

👌👍

[@EyesOnReality]

With pure MOSFET's, a resistor (usually 1Meg) is connected between Gate to Ground to ensure a full switching off between Drain to Source, would this be helpful in your circuit using IGBT's, causing a full cutoff (minus the BJT .06 volt drop) between the collector and emitter? Just wondering as I've only designed circuits with either pure MOSFET or pure BJT transistors but never with the IGBT type.

[@eDoc2020]

I'll be the third? to comment about the fire extinguisher. I once used some water when I had a transformer caught fire. Although, I unplugged it first.

[@klave8511]

👍👏👏👏👏

[@nikiamz6501]

yey

[@nelsonpalomo2688]

Hello mi frends, sos. I quiero hacer un circuito de inducción pero se me queman los igbt, como pudieras orientarme please . I Wasapp +58 thank you

[@ElIsraelJijijiji]

JAJAJAJAJJAJAJAJAJAJAJJAJA

[@deltab9768]

The crack in the aluminum foil was almost surreal.

[@peterlents983]

Is it possible to make high power (5 kW), high frequency and high AC voltage (1000 V) power source? I have three irgp4063d IGBT transistors.

[@rushb9388]

@Heads Mess there is no point to this wall of text advantage of igbt is power loss (v•i instead of i2r) but disadvantage is speed these "2 devices in one package" is just equivalent model of igbt. edit: wow he deleted it

[@rushb9388]

Is possible. If you can find or buy 4th such transistor you can make full bridge inverter. You will have to use single phase as these igbt will not handle rectified 400V on input.

[@rushb9388]

@Heads Mess Discrete PNP BJTs are worse than even NPN BJT or IGBT in availability, cost, and parameters. Power BJTs in general are not common and comparatively expensive at typical IGBT voltages and currents.

[@Broken_Yugo]

@@rushb9388 The guy is all over the comments on these videos, I assume he's just not yet learned he doesn't know everything.

[@rushb9388]

@@Broken_Yugo It's probably a troll or nutter

[@mostlymotorcycles.]

Had to hold my breath while you reached over the circuit board to adjust the potentiometer. I thought, if this thing goes bang!

[@nowheremanjk8624]

Odsuń konstrukcję od podłogi i od góry daj wentylator. Będziesz spokojniejszy. :)

[@uxmuu204]

WHEN new video?

[@DiodeGoneWild]

I'm already editing it. It's delayed because I was travelling a bit.

[@uxmuu204]

Good i thought you HAVE died or something 😅

[@RavenLuni]

Good to know - was starting to wonder if the mains test went horribly wrong and you got fried or something. Glad you're ok :)

[@alberti.2334]

For the resistors, use those with aluminum casing, usually 25w. There are the ones that can be screwed into the aluminium heatsink with a little thermal paste

[@Basement-Science]

those are wirewound as well

[@voitano73]

Danyku, měl bys do videa přidat upozornění, že když šaháš na součástky, je to vypnuté, vypadá to, jakože to děláš za plného provozu

[@The_Hanter]

Taky že jo 4:38 kabel má v zásuvce a žárovka svítí

[@FurryCuddler]

Extreme Slayer Exciter maybe? (Very powerful Slayer Exciter with hard circuit)

[@drobotk]

Those aren't very efficient for large coils because they use pulsed DC instead of AC on the primary coil. They work fine for small coils, and are the easiest way to get a high resonant frequency coil working though.

[@FurryCuddler]

@@drobotk I just see Russian video with big slayer exciter and it makes 25 cm arcs Sorry for bad English

[@drobotk]

@@FurryCuddler I'm not saying that it's impossible, I meant that a half bridge is more efficient and better suited for large coils.

[@kapegede]

The most durable solutions are temporary solutions.

[@TheFreak111]

5:44 I see some smoke at the left part of the circuit

[@drobotk]

It's the burning resistors in the snubber networks :)

[@attilarivera]

I think these devices require a big amount of energy

[@Debraj1978]

Today, I have completed my induction cooktop experiment with mains voltage, here is the video: - kzbin.info/www/bejne/i4bMZJeGrt-CgpI

[@matej_stepan]

So you basically built a 5g cellular tower 😀

[@nowayjerk8064]

hello tail

[@sstapp1]

a new soulotion to desolder components...

[@ncot_tech]

Takes at least three minutes before the solder starts melting... 😂 said as if solder melting is a common and normal mode of operation. 😁

[@DiodeGoneWild]

It was the very first test. This will be fixed, no worries ;).

[@simontay4851]

It definitely is not good. That means the temperature of the resistors is over 190C. A lot of energy is being wasted as heat.

[@eDoc2020]

IIRC the circuit was drawing around 0.2A from 240v. Almost 50 watts! I'd guess at least 10w in each snubber resistor. Crazy.

[@inductivelycoupledplasma6207]

@@simontay4851 the snubber networks are meant to dissipate a lot of heat, to avoid the excess energy from damaging/heating the transistors

[@Magneticitist]

@@inductivelycoupledplasma6207 This angers the late John Bedini

[@superdau]

"Now it takes at least three minutes before the solder starts melting." So... I guess... it's fine? ;)

[@drobotk]

@Heads Mess I'm sure he has seen your comments but he has been ignoring you ;D

[@Chuckiele]

@Heads Mess I mean, it works, doesnt it?

[@Electronic_For_You]

Where is your cat????? 😊😀😁😂

[@Magneticitist]

3, 2, 1, click

[@FurryCuddler]

Hah now connect flyback transformer to it!

[@drobotk]

I have done that, got 5cm arcs from just 24V input to the half bridge and 4 turns primary on the flyback :)

[@TunioMir]

Where is that accent from?

[@drobotk]

He is Czech

[@manipulativer]

"energy wireless transfer" - a pretty unconventional name for a transformer

[@mernok2001]

You input current measurements are wrong :/ Even a true RMS meter doesn't measure half cycle sine wave voltages and currents accurately,no matter if its a multimeter or clamp meter.

[@jakubladman5113]

To tune the snubber networks is necessary to estimate (or measure) the parasitic inductance, then calculate the impedance of it at the ringing frequency. The resistors should be 0.5 to 2 times this impedance depending of the damping factor needed. Then the capacitors are set to have impedance less or equal to the resistor at the ringing frequency. The power dissipation is then fsw x V² x C (switching freq.; Supply voltage; snubber cap). See the famous unitrode application note on snubber design (for the case I messed something up, while writing it only from memory).

[@trr3576]

Do not measure temperature by your fingers 😂😂i burned my fingers

[@DiodeGoneWild]

No worries, I do my best not to exceed the temperature range of my finger thermometer ;).

[@juntendo6104]

and also turn off and unplug the device before touching as well

[@shabbirahammed4596]

i want to buy your cat.............

[@wolfgangboettcher3126]

Ich habe es bemerkt wellen controler

[@GRBtutorials]

I cringed at 3:20... it’s not a good idea to poke into a circuit with capacitors using your fingers! Even with discharge resistors, it’s not a good idea. After all, you’re not ElectroBOOM!

[@ayyadew]

He sill don't have enough money to buy a thermometer

[@dl8cy]

no, it's not his style .... he is used to perform out of nothing available, like in former communist times of Czechoslovakia, where he still lives

[@mister_Iks]

Why Russia speak like Asian?)

[@dl8cy]

first video i watched years ago from Didesgonewild i thought he is a Hindi native speaker, but now i know he is good Czech guy

[@mister_Iks]

@@dl8cy good guy true))

[@zyga5441]

sometimes you have interesting videos but the commentator and accent can not be heard