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EG1164 High Power Synchronous Rectifier Boost Power Supply Module, Maximum Efficiency 97%, Input Voltage 8~50V, Output Voltage 8~60V Adjustable, Maximum Power 300W or more, Switching Frequency 219kHz. Because I have limited test equipment (power supply and load are maximum 300W), so I can not measure the higher power, this board should not be a problem with a maximum power of more than 400 or 500 watts. open-source URL：https://oshwlab.com/zeruns/eg1164-high-power-synchronous-rectifier-booster-module EG1164 Introduction The EG1164 is a high-voltage, high-current step-up synchronous rectifier DC-DC power management chip with an internal integrated reference power supply, oscillator, error amplifier, cycle-by-cycle current limiting control, half-bridge driver, etc. It is very suitable for high-voltage and high-current applications, and it can support up to 600V power supply voltage output with an external high-voltage MOS tube. Boost synchronous rectification solution, support high voltage and high current solutions An external capacitor can be used to set the operating frequency (0-300KHz). 2-pin EN external resistor for flexible adjustment of start-up and shutdown voltage. UVLO undervoltage lockout function: Vcc pin turn-on voltage 3.65V Vcc pin OFF voltage 3.6V Week-by-week current limit control Package: SOP16 actual picture Test Data test equipment： Toplia Adjustable Power Supply X08P3010：https://blog.zeruns.tech/archives/698.html Hantek DSO2D15 Benchtop Oscilloscope：https://blog.zeruns.tech/archives/652.html 炬为 Electronic Load：https://s.click.taobao.com/TPZCHAu VC86E Multimeter：https://s.click.taobao.com/9P9CHAu 输出带载测试(Output Load Test) Input 12V, output 36.6V, no-load current 0.11A, no-load power 1.32W. Input Voltage Input Current input power output voltage Output Current output power efficiency 11.59V 4.556A 52.8W 48.05V 1A 48.05W 91% 11.12V 9.57A 106.42W 47.93V 2A 95.86W 90.1% 23.43V 6.434A 150.75W 47.95V 3A 143.85W 95.4% 31.75V 3.155A 100.17W 47.95V 2A 95.9W 95.7% 31.32V 7.88A 246.8W 47.62V 5A 238.1W 96.5% 23.25V 8.59A 199.72W 47.66V 4A 190.64W 95.5% 23.29V 8.03A 187.02W 35.98V 5A 179.9W 96.2% 23.3V 8.14A 189.66W 59.67V 3A 179.01W 94.4% 31.25V 8.59A 268.44W 59.67V 4.3A 256.58W 95.6% 8.08V 6.52A 52.68W 23.87V 2A 47.74W 90.6% 7.6V 5.09A 38.68W 11.82V 3A 35.46W 91.7% 31.23V 9.46A 295.44W 35.93V 8A 287.44W 97.3% Different input and output voltage differences and different output currents affect efficiency. schematic PCB

The laptop that I’ve had for about 8 months emits a very electronic smell. The smell comes from the whole laptop but it is very noticable when I smell over the keyboard. It don’t think it’s a plastic like smell but very electronic like. I’m worried that kind of smell is dangerous for health and if I should buy a new laptop. The charger smells odd when it gets really warm as well. It’s a HP premium laptop so it’s odd it smells like that. The MacBook Pro I have doesn’t smell like that at all. Is it dangerous and should I get a new Laptop from another brand, or is it just my unit?

Hello! First time poster here. I need some help concerning my 5700xt project. I'm planning to remove the original shroud/fan assembly off of my Gigabyte 5700xt and replace it with two Actic P12s. Reason for that simply being noise. I don't want to run them using a motherboard fanheader, so I'm planning to connect them to my GPU fanheader and let them be controlled via that. Thing is, I can't find any diagram or something of that sort onling showing me what pin is responsible for what and in which orientation. Also I'm unsure on how the fans will behave. The original assebly is rated for 12V 0.35AMP while one arctic fan is 12V 0.08AMP. Will that be a problem? Thanks in advance and sorry for my english

(It doesn't need to be you specifically. If you know someone else, like a family member, who work in this type of field, you could ask them these questions over facebook or something and just copy//paste their answers here. I'm sure it would be interesting to you as well to know a bit more about this stuff) Preface Hi there, as part of a class at college(Mechanical assembly), I need to ask a few questions to someone who currently work in an industrial setting and whose job is to work on/with panel like these; (It doesn't absolutely need to be the jobs I mentioned, as long as your workplace has a similar panel somewhere and it is your job to work on it... A plain Circuit Breaker panel is... not enough, sorry) If there’s any such person here, would it be possible to answer a few questions and ideally post a picture of such panel at your work place with or without yourself/coworker on it? You can send it over DM if you'd prefer it not be public, doesn't need to show the face, back of head is fine. It's also not an absolute requirement for there to be someone in the picture. This little "survey" is not for posting on the internet, it's for the teacher's eyes and to "share with the class" in a few weeks. Honestly I’ve tried LinkedIn, thinking that would be THE place to find people in that field of work... Turns out nobody reads their messages on there and it’s been a few weeks. I don’t have a FB account with my real name to contact random people with either, so... Yeah... Really hoping at least one or two people here work in that field, otherwise I might need to go to Reddit *shivers*. Onto the subject I have a minimum of 5 questions and 1 task I need to ask of you. If you can, the more info the better. The MUST HAVE answers are as seen below and the "optional" one in the spoiler are similar to the must have, but a bit more specifics. As such, I would need to ask the following of you : Your full job title and type of company you work at (related to the field of electromechanics/electricity/etc.) Summary of your work function and of your workplace (at least a couple lines You can look at the Optional question if you're lacking in inspiration in what to write here). (OPTIONAL, Can be obtained on Google if needs be) A picture of your immediate work environment. Like the one I posted above. You can choose to not be present on the pic. If you'd rather it not be public, you can send it over DM. The competences, the type of education and knowledge needed to occupy that job (basically what was demanded of you on the job resume//at the interview and what you've had to do after landing the job) A brief history of your education (related to this field of work, the programs you’ve attended at College/University, if you attended any vocational schools or other courses outside of your program but related to it, etc.) The diploma you’ve received at the end of your education (College, university, vocational studies, etc...) Optional : To anyone who can answer, I thank you. I would be eternally grateful to anyone who takes the time to answer. The more answer the better. (And mods... No, this is not an AMA.)

so my friend is going to german and looking for a washing machine. i think is better if u guys suggest both washing machine and washing machine with Dryer. Budget : 300euro for washing machine only can stretch budget with dryer

Hi everyone I am looking for thous part for asus gl502vs motherboard R22 636 RHH R36 626 CMI I could not find any matching part either it have other name , or I suck at searching

Hello I am new here. I was wondering what the best website was for shopping online for computer parts. I was thinking maybe Newegg or Amazon, but I am planning to do a computer build this summer and I wanna know where to look for parts. Thank you!

I want to go to an electronic show such as CES, but I think that going to California (when I live on the East Coast) during the winter is a waste. Are there any in USA during the summer?

There's a new "hybrid" 3d printing process that is allowing researchers at the University of Sheffield to print materials like copper, fiber optic, steel and nitinol (nickel titanium) all at once in one build. I think this is super exciting to not just tech companies but home inventors who want to make their own gadgets in a small form factor but don't necessarily have the huge array of machines to do it themselves. 3d printing was a huge leap to allowing people to create at home, but when this technology hits consumers it'll change the game entirely. Now you won't even have to wire your circuit, you can just design it in CAD and print it. Solder in your components and you're done. There's also applications for education, as in teaching kids how electronics work and letting them make their own circuits. Basically I'm hyped about this. hbu? Source: https://all3dp.com/uk-engineers-thread-hybrid-3d-printing/?utm_source=wpn&utm_medium=wpn&utm_campaign=wpn

Hi guys, What options can you give me for cases with this build? PCPartPicker Part List Type Item Price CPU AMD Ryzen 5 2400G 3.6 GHz Quad-Core Processor $118.96 @ OutletPC Motherboard ASRock B450M PRO4 Micro ATX AM4 Motherboard $69.99 @ Newegg Memory Team Vulcan 8 GB (2 x 4 GB) DDR4-3000 Memory $41.99 @ Newegg Storage ADATA Ultimate SU800 512 GB 2.5" Solid State Drive $57.99 @ Amazon Case Cougar MG110 MicroATX Mini Tower Case Power Supply EVGA GD (2019) 500 W 80+ Gold Certified ATX Power Supply $55.98 @ Newegg Prices include shipping, taxes, rebates, and discounts Total (before mail-in rebates) $354.91 Mail-in rebates -$10.00 Total $344.91 Generated by PCPartPicker 2019-09-08 11:21 EDT-0400 Hopefully not so expensive because i have a low budget : (probably around $100) PD: I want to upgrade my build later on when i throw a GPU on it. Thanks!

Apparently, as beginner, i want to do something like Drone with a camera but ive met some trouble quadcopter with camera 1. is All ESC are same? if it's same then i just need to plug the connector to propeller - ESC - Flight platform, right? just plugin? iim using brushless motor. 2. regarding about the Flight control a.k.a MOBO. its there any recommendation for it? i kinda looking for a budget. 3. can i use a DVI camera? if its not, then what kind of camera? 720p/1080p. and how the camera transmit image or video to laptop or phone? 4. and i dont know what remote to use.

I have a Ducky DKON1508F keyboard. On the bottom of my keyboard are 4 switches but I don't know what they exactly do. I have lost the user guide and I cannot found it online. does anyone know what these switches do? Thanks Pieter

I have an old VCR with a blown power mosfet (STP3NA60FI). It seems that this mosfet isn't avible anymore due to its age. Is there an newer comparable mosfet? STP3NA60FI.pdf

Hey guys so I was wondering if this idea could work: so as almost everyone knows you can make electricity with lemons. I've been researching and found out that a lemon emits 0.7v. I was thinking: if i put 128 lemons in a parallel circuit then the output will be ~80v. If you short circuit the lemons tho, then the amperes should go up. There should be around 300k amperes if you let the short circuit work for a while. What if you cool the wires in which the high current goes trough and use the vapor to make a turbine spin to make more current??? (Like a nuckear reactor thing) Is it possible that it could work or only a stupid idea?

Hello all, So I'm building a custom desk pc. I plan on using the following power switch to power the pc. Just need advice on whether it will work properly. Unlike pc power switches, this one has a latching mechanism. I haven't done this before so I don't know whether this would make a difference or not. Yosoo16mm 12V LED Latching ON/OFF Power Push Button Switch,Power Symbol+Ring LED Stainless Steel Waterproof (Blue) https://www.amazon.ca/dp/B01EL9TKGA/ref=cm_sw_r_cp_apa_NRurBbK3R6V8Y Any tips and advice are welcome. It's a first time diy project for me, I could really use the help. Thanks in advance

So a week ago my pc started acting weird, I set it to sleep mode the night before and the next day it wouldn't boot. When pressing the power switch it turned on a couple minutes later but now it's doing nothing at all. I tried a different psu but that didn't work. The weird thing is, when I jumpstart the psu while plugged in the mobo, the fans start spinning up normal MOBO: Msi 970 Gaming CPU: AMD FX 8320

Hi, My friends and I want to make tesla coil as a physics project. We can't decide about the size of coil. We can have 7.5cm, 5.5cm, 11cm and 12cm (diameter) pvc tube for winding copper wire. We would like to have bigger and taller tesla coil but we can't have more than 12 volt with psu, or maybe 24 with larger car battery but we are not sure will 12 volts be enough for tesla of that size and we want tesla and spark to be strong enough. So give me advices or do you have experiences with that. We saw a lot of videos but we can't see how much volts they use for larger size teslas. Tnx guys and sorry for my bad english

I have a usbpre2 pre amp from sound Devices and when I try to play music randomly in the song you can hear some sort of decoding sound. It’s sounds like a electronic gargle and it won’t go away. I also have iTunes set at 44.1k the pre amp set at 44.1k and the computer set at44.1k. Any suggestions to fix this issue

I want to power an amplifier using a battery pack I made from 2 battery x6 slot holders wired in series with a DC power cable coming off it into the amp. However I also want to be able to charge the battery pack whilst also powering the amp with the battery pack. What's the easiest/cheapest option to do this? I Know you can charge these battery packs I made I just don't know how Any ideas on how I would wire this?

I am making a little recording light so that when i flip a switch attatched to an arduino in my room, it will send a signal to an rf transmitter, which will transmit that signal to the receiver which will be above my door. then that receiver will send a signal to a transistor which will connect a red led to a battery to turn it on. I have most of the design done, but I am stuck with the part that will be above my door, the receiver transister and led. I don't want to have to plug it in and have an ugly wire running down my door. So i thought to use a solar panel that works with indoor lighting, but I want it to work when the lights are off so the solar panel will charge a battery. I don't know what kind of battery i should use. it will only be powering a receiver and led. I am not great with ohms law and figuring out how much voltage or amperage i need, so does anybody know how I can find out what kind of battery I need, and if there are any solar panel recommendations you can make that would be great. Thanks

Can u help me with a project: Share with me some ideas I want to build a robot (a simple one) I thought in a mobile basket with two motors attached to two different wheels and one in the back free (it could rotate). Obviously for turning one motor will stop. But also I want to put some sensors and when the robot touches the wall it can avoid it. Please share your ideas with me.

We can't have one person determine which brand is the best. What we have to do is which part is good from your view & explain why. Be clear on what part you are posting. Don't just say it is good. Explain how it is good. Benchmarks are not required, but they are recommended. I am very strict on benchmarks. Don't use 3DMark for benchmarks. I suggest FPS benchmarks & timing benchmarks. I HIGHLY recommend that you also post a link to the reviews of the part you recommended. Right: I recommend the Intel Core i7 4790K because even though it has a successor, the i7 6700K, it is still a solid CPU for gaming & content creation. You can see the benchmarks for gaming with the GTX 980 here & Adobe Photoshop & Premiere CC here. Click here to learn more about this part. I recommend this Samsung SSD because there are a lot of positive reviews, has a good capacity for storing your important applications, & is a really good bang for your buck because it's $90 for 250GB. Click here to see it on PCPP. I recommend the BitFenix Pandora MATX because it doesn't take much space, has good airflow, & it looks beautiful. Click here to see it on PCPP. I recommend this GTX 980 because it can do solid 1080P gaming & if you SLI can play games at 1440P & 4K. There are a lot of positive reviews. Click here for review, here for benchmarks, & here for the parts. Wrong: Intel Core i7 4690K GTX 980 because it is amazing for video editing. AMD FX 9590 because it is awesome/really fast/has 8 cores. I recommend the 1X8 Crucial case. BitFenix Please don't try to shoot people's comments down & start flamewars. I accept constructive criticism if you disagree.

Just answer the poll!

Original article with some pretty pictures. This is part one that focuses mostly on signatures. Part 2 will include actual hacking and will follow later. Signatures Infrared: All ship systems generate heat that can be found by infrared cameras. Parts that are heated up (like thrusters) will only cool down over time, so beware. Electromagnetic: If it consumes or generates power it generates an EM signature that can be found. Cross-Section: Or radar signature. The larger the ship the easier it is to locate. Also active scanning makes it easier to get located, even for passive scanners. Unique Ship Signature: Or transponder. Enforced by law it will send out your ships identifier number. Every component component sends out at least one of these signals. You'll be able to use components with a lower signature but there is always a trade off. Low emission shield are overall weaker, radar scattering armor is not good at taking damage, passive scanners might miss that Freelancer you were hoping to catch and the UEE is not forgiving about transponder that send out wrong or no information at all. Speaking of UEE, they require a certain amount of signature while in regulated space. The fancy little radar bubble in front of you is the representation of the combined data your ship has gathered over all its sensors. Depending on the fitted equipment you'll be able to change its behavior to perform a passive, active omnidirectional or active directional scan. Passive scans require next to no power and therefore generate very little signature, perfect for hiding but you may not be able to see @CommanderFett in his cutlass hiding behind the next asteroid. Active omnidirectional scans will warn you about most surprises but will also give out your position to everyone else who might be listening passively. Active directional scans gives you more information on an unidentified contact or may reveal contacts you didn't see before but does not provide any information outside its scanning angle. While we're at it, contact states: Undetectable: your ship is not able to pick up a signal. Uncertain: May or may not be something. Unscanned: position confirmed but not yet scanned. Scanned: all possible information gathered. Offensive electronic warfare EMP: overloading your enemy's power grid to force some components to reboot. Data-Spike missiles: once anchored to your targets ship it establishes a data connection so you can hack into its systems. Distortion: Sucking power right out of the power grid to disable components for a short period of time. Signal-Intercept: intercepting, rerouting, faking or scrambling enemy communication or scanners Special equipment: storing data, decrypting or encrypting transmissions Defensive electronic warfare EM flare: Instead of heat emits a strong EM signature that will confuse EM based missiles. Heat Chaff: Not as hot as IR flare but with greater coverage. Data Chaff: Introduces noise to communication so it gets harder to maintain a data connection. Decoy missile: Mimics the signatures of your ship, however radar signature can not be reproduced. Scan shielding Different armor plates, shields with additional scan scattering, specialty cargo containers or specialty modules can be used to hide whatever you're transporting. I don't ask

What is the worst computer brand you know or experienced with? Explain why! WRONG: "Alienware" RIGHT: "Alienware because they don't use reliable parts for their desktops, don't specify what parts they are using for their desktops, & their laptops are always using lower end and/or older CPUs while their competitors such as MSI & Asus use higher end CPUs for their laptops. They provide the worst bang for your buck because there are better valued gaming laptops such as those from MSI & Asus for a little more or even less. The Graphics Amplifier is a pathetic joke because overtime your system will bottleneck & the GA undermines mobility." Because this topic is so successful, I made a "happier" version of this topic, titled Best Computer Brand Ever. If you want to comment the best computer brand you know or experienced with, click here.