 Baiklah, hari ini saya akan mengekalkan untuk Power and Training. Saya akan beritahu bahawa beberapa orang tidak tahu bagaimana berlaku. Saya akan mengekalkan lebih kurang dari skratch. Sangat basic dan selama masa, saya akan meningkatkan keadaan yang lebih tinggi. Biasanya kerana anda melakukannya dengan IoT. Saya cuba mendengar keadaan keadaan ini. Biasanya Power, Measurement dan Efficiency. Bagi apa yang cukup, saya akan menjelaskan keadaan anda dengan keadaan yang lebih tinggi. Biasanya keadaan lebih tinggi atau lebih besar. Biasanya Power-related. Saya sedikit berkongsi dengan diri saya. Saya berkongsi dengan kawan saya. Saya juga ingin beritahu bahawa saya berkongsi dengan kawan saya. Saya berkongsi dengan kawan yang berkongsi. Biasanya saya akan membuat pivoti periuk yang berbeza. Biasanya software saya juga ingin mengekalkan. Atau saya akan sudah belajar dengan majlis. Sebenarnya kerana saya melakukannya dengan beberapa perakannya, saya akan melakukannya dengan beberapa perakannya, penyelidik, kebebasan, mechanic disini. Saya juga akan mahu melakukannya dengan pelanggan, dan produk yang lebih baik-baik, seperti material baru, material yang lebih baik, pembentukan, dan segala-galanya. Jadi pada hari ini, jika kita bercakap tentang material baru, ini adalah perkara yang penting yang sebenarnya membuat komponen perang, mempunyai lebih baik dan lebih baik dalam keperluan sekituh. Jadi ini adalah sebuah pertanyaan yang saya telah bertanya sejauh-jauh dalam keperluan kerja saya dan keluarga saya juga. Boleh saya melihat komputer 5-5? Boleh saya mempunyai 6 perang dan menyebabkan semua pertanyaan? Bagaimana sebuah pembentukan atau sebuah pembentukan? Bagaimana perbezaan? Bagaimana saya mempunyai banyak perang? Bagaimana saya boleh melakukannya kepada semua orang? Sebelum kita faham, bagaimana anda mempunyai 5-7 perang? Anda akan faham apakah perang yang berlainan dalam komputer 5-5? Jadi ini adalah topologi yang sangat mudah dan berlainan dengan berlainan untuk semua orang yang mempunyai. Bagaimana perang yang berlainan? Bagaimana perang yang berlainan untuk 1000 mb untuk kekaran? Bagaimana perang yang berlainan? Jadi ini untuk informasi anda. Dan kita di sini adalah lebih kurang pada cara anda. Maaf. Ini adalah pada cara anda memperkongkinkan penyayangkan. Saya memperkongkinkan penyayangkan kota kawal di syarikat 30kg. Jadi ini untuk informasi anda. Pembentukan atau sebuah pembentukan yang sangat terkenal dalam perang. Kamu akan memperkongkinkan penyayangkan yang sangat memperkongkinkan sebuah pembentukan. Kalau kalian beliau memutuskan pohon, saya adalah segunus untuk semua projek yang diperkenalkan. Ini seperti folk-fokong yang saya berpikir. Ola, forma, talian ibu, etc. So, apa adalah fasa 3? Fasa 3 adalah untuk pembangunan yang sama, Karul pukulnya untuk pembangunan yang sama di tersetap. Jadi anda akan melihat semuanya dengan senjata yang sangat baik. Selepas itu, apa yang menyebabkan keadaan kekacauan di sini, apabila anda melihat kecahayaan di sini, anda melihat kecahayaan dan anda melihat kekacauan ini. Semuanya sudah tua-tau dari ini, jadi kecahayaan akan meningkat sedikit. Jadi terdapat kecahayaan yang sangat baik terdapat pada masa untuk kekacauan untuk kekacauan versus a single phase when you rectify the voltage and you can see the output, what you get a better DC line compared to this I mean, in variety you will not be so straight just a little bit so this is the main big difference between 3 phase versus a single phase so the question is do I need 3 phase for my stuff for low end projects you don't really need 3 phase, single phase is good enough but for me when I operate factory machines like internal winding machines transformer winding machines 3 phase is very efficient it's cost efficient overall in terms of power saving that's the difference so this is all very simple I'm going to explain much just one straight line you just need to know the ohms law and your joules law output power loss i square r this is the most of the things I deal with on a day-to-day basis from AC to DC conversion so this is the most simplified version I can show you for you to understand from AC wave, you go through a bridge rectifier to a full way rectifier and then you go to capacitor across to get this ripple nice DC line so at this point for those who are dealing learning this power network for scratch this is the fundamentals or this is just a basic fundamental you need to take note of the transformer voltage and what you want this can be 12v, 9v, 5v up to you of what kind of transformer you buy for those of you who have more experience with AC to DC conversion when you buy your own transformer for your own IoT application or maybe other stuff these are the kind of pros and cons that you need to know what kind of model you want there is an unregulated the typical one is the regulated linear basically just read the voltage regulator to smoothen the DC line but of course it's quite economical nowadays everybody is using switch mode power supply because of this magical ability to tune to what frequency you want so that's where high frequency transformer comes in so this switch mode power supply topology is quite complex I will not tell you for today's talk so we will see how it goes interestingly when I went to India this is the kind of transformer they use have you ever wonder why if I went to India there was a short power power trip every now and then it's just that the way it comes in is not very efficient in some sense you need to use this one of this topology to regulate to make sure the power won't trip so much so this is just more or less for you to understand how transformer you guys are looking for so this is a better elaboration of what is 3 phase versus a single phase that you guys use you can see the big dip sorry for that so you can see sorry I'm not making use of it it's fine so you can see the ripple current the ripple voltage is more as a lesser ripple compared to the big gap it's smaller so that's the idea that's the more like the generalized simplest way I can explain 3 phase in terms of what's the worst way advantages but noon load at 3 phase is actually quite expensive to implement we're talking about what are costing for materials to use it so this is a very simple guide why do we use AC to transmit power line why don't we use DC to transmit it's a very simple overall g of it I mean look at it this way if I want to actually do a step down of voltages do I want to go through all this or just build a transformer okay all these things require circuitry analysis this is just more like a better place this, place this it's more like call and why you're right to step down so in some sense this term it's what I call a cheaper option okay a cheaper option but however do note actually you can use you can transmit power using DC as well it's done from the UK you can actually transmit power using DC but the advantages at the moment there are very many phase of harmonic issues because it's just a straight line and secondly there's more skin effect skin effect is basically mean to say that your current do not flow through the entire copper you only flow through the surface of copper that is skin effect and that has only happened when there's a wave electromagnetic wave flowing through the copper DC there's no wave it's just one straight line so you don't have that physics effect for those of you interested you can check out this high voltage diagram just get a better idea what it's about okay power rating so let's go to actually what can you make out of it in terms of what you use in terms of projects now first and foremost very simple when you have current flowing through to an element be a resistor capacitor or inductor there will always be heat and this heat destroys your component eventually if you don't, keep it in check okay so basically the idea behind this concept of power supply power being supplied into your project the idea is this state regardless of whether you use 3 phase single phase or DC to transmit power the power being supplied to your component is only limited to the current capacity of your source i.e. if your transformer can't help to fire here you will always be limited to the power range okay anymore you will burn your power supply okay like for example this one the number of transformer i had before i've seen it burn many times around one of a few customers they just overloaded and they draw one and shoot and naturally it can cause so be careful when you play with your you know, if you have blue checks can i say everything has a current reading even for resistor there's a power reading at 70 degrees but at 1 watt even for capacitor there's also a current reading you can use anymore you go hot and just burn off everything inductor transformers transformers also the wire can only power up to 155 degrees my ferrite core can handle 300 degrees so you need as strong as your bigger sling your wires so how do i actually implement this knowledge into my whole music now this is the typical power map i put for my home for my room you can see my room number 2 and you can see the power socket P4 when i check P4 of my power supply only at up to 30 ampere of current to be used in my room anymore the power tray so how do i use this knowledge to calculate how much power am i going to use for my projekts very simple we just follow this very simple power equation P or VI or if you're using a transformer power equals to VA it's literally the same thing so let's say if i use my PC has this PSU power supply unit it has a very nice 5 ampere with 240 volts and my computer guarantee an 87 efficiency so more or less i'm drawing 4 ampere for my computer already and those of you who need to learn to use hand dryer hand dryer is a very highly power consumption device it has only 4 or 5 ampere so if i on this 2 at the same time you're more or less really trying about current 8 or 28 ampere for your power supply for your room so very back to the question do you think about 5 servo computers now if that depends on the power living depends on why so all this thing about the story is you want to do this 5 problem but please cut calculate first you want to on all these things all the projekts if you want 1 ampere at the same time it's okay but make sure you calculate always assume that you're using the most power the least of the rule of thumb so next time those of you who want to experiment with wireless charging high power wireless charging you want 3 ampere, 4 ampere this is something you take note so i'll give you a very good example of what i did this is one example i did for my wireless charging projects in my company so let's say before we review let's talk about low you'll hear this all the time but what is it really about basically it's the device that draws power from the power supply it draws make me your projekts it's usually measured in resistive or z-oops z-oops or impedance then it's a more higher level calculation so very simple body based transmitter this is my transmitter this is my receiver now this module is capable of generating up to 100W plus i haven't really tested to the limit yet so let's see how i do it so these are the very simple simplified schematic so basically i put 24 volts inside and i mention my load of how to battery any gate so your load your hard load will depend on what device you use every single PCB has a different load you have to find out what the load is first the safest way to do this kind of experiment is to use an electronic load but an electronic load cost a fair bit like 1000MW so this is my efficiency test i did for my wireless powers module block so basically how i put it up is this i measure my current and my load across my load and this is my results so basically my input will always be the same 24V output will also be the same voltage 24V and naturally you realise the power input under 19W gives me about 88% efficiency so this is a very simplified version you guys can use to measure for your own power application in terms of the wireless modules you are using you just need to know how much voltage current you are getting input how much voltage the power will be supplied and you need to know how much voltage current you draw then you will roughly know what is the efficiency already a very layman term so so it's good to say it's good to say that the wireless power transfer will keep up to 90% in the future and that's only for 100W so more or less is a good a very basic example for you guys with that i have nothing else really i mean that's all i have to say for today's talk is there any questions you want to ask so far