Hey guys! My name is Kyle. I strive to take advanced topics, boil them down to key concepts, and show how to implement them into real-world products. My full-time job consists of designing and assembling embedded electronics, through my company, MicroType Engineering.
MicroType Engineering is a full service electronics and product design firm. For any business inquiries please email: info@microtype.io.
It´s the first time I understand somebody talking about electronics (at least, electronics on this level). Very well explained...!!! I was such an idiot all those months trying to learn electronics: At very high frequencies, the turn-on/off-time really gets out of controll, proportionally, I was so blind and totally overlooked it...!!!
Nah, if the charger reduces charge current as the battery fills, the charger won't end up over charging the battery... The charger will just power the device once the charge current is reduced to the device load.
You wont ever "finish charging" unless your decice load is less than the charge current cutoff - but it doesnt just ignore battery resistance and overcharge the battery on trickle if the load is using the juice.
Fantastic Video, thank you! On a side note, it may be helpful to provide us with the libraries you are using. I had a hard time finding the voltage regulator symbol on the web, or maybe let us know we can use alternatives in case we cannot find the symbol online to add to our libraries
Professor please help!! When I was looking for MJE13005 datasheet I found there are two parameters named as VceO(sus)=400VDc and other is Vce=700VDC, so what does these two means?? Now which one is to consider as max withstand voltage rating when choosing this bjt to switch inductive load like smps ?? Please help
Its a great video. Your content has more information as compared to others. I saw lot of videos on EMI/EMC from well know youtubers. Everyone is talking about , How to reduce EMI/EMC from PCB , so that it can pass a TEST. But NO ONE is discussing about : How to resolve PCB , which is not working properly due to 1. EMI/EMC from PCB. 2. due to power supply 3. EMI/EMC due to inductive load.
Seven 22uf ... Each input pin has two capacitor and close to pin ? or noise is first filtered through seven 22uf capacitor and then given to input pins????
I saw your video first time and you sound me quite knowledgeable. I have two questions: 1. 5V is given to microcontroller from external SMPS. Can TVS diode be used as filter to clean 5V DC ? Is it possible that 5V DC have disturbance or spike during switching of 220V AC inductive load ? 2. What other filter can be used to clean 5V DC going to microcontroller? 3. I mean TVS + reverse polarity protection diode + filter ???? to suppress side effects of inductive load switching.
I know this is a year old now, but just came across this today. With USB you always want the resistors to be placed close to the chip. Yes it is bi-directional and as a general rule, for bidirectional lines, you can place them in the middle. But on a long transmission line you actually what them at both ends of the line at each of the transmitter/receivers. Your typical USB link is a long transmission line, in fact you likely only have one end of the link on the board. The USB spec has taken this into account and specifies the resistors at both ends. Some chips integrate them, so you don't need to include them on-board in that case.
This is a great set of insights. It parallels what I've learned vicariously through a guy who does our boards on a Manncorp line. Lots and lots of tribal knowledge.
One user case you didnt cover: we have a need for rapid prototype iteration. I can get pcb fab and stencil from china in 6 days for cheap. Assembling that thing by hand with 300-600 placements is hell. All the CN benchtop machines are a mess. The hobbiest OpenPnP machines are scary and low quality feeder'd. Where are the other options?
Wow.. you make things so much easier to understand. You dont assume we know anything at all and its great. Everything you say if it isnt obvious, you breifly explain what you meant in laymans terms. Thank you!
Nice video...i have a issue with 210khz failing CE...but that's on AC power line which carries like 80A AC current and has power line communication on it...
So my application has a p type mosfet because i am controlling it from a current sinking device. I suppose i still need to worry about the max voltage between the drain and the source and the gate and the source? That sorta sucks
Thanks for this, it's exactly the level of detail I needed, and from your explanation I can appreciate when and why there are cases where far more detailed selection/calculations would be required. i suspect that for my purposes I'll probably never need more than these basic selection considerations and quick safe limit proximity checks.
A concise, to the point explanation in a language the 'mortal' being can understand without the 'gobbledygook' and 'dreaded' calculus. Great stuff, keep it up!
This is an absolutely superb presentation. This mechanical engineer is now in with a fighting chance of building a simple dc switch which demands effectively zero gate current once energised. Thank you for improving my education with no pain.
Good video. I have to relearn a bunch of stuff. I had a bad heart attack causing hypoxia (lack of blood flow to the brain). My memory is like Swiss cheese. One thing I remember is that I used MosFETs to power 36 V motors at 36 A. I used a Flyback/Free Wheel diode across the motors but was burning holes in the MosFETs. I was operating at about 20,000 to 22,000 cycles per second adjusting the duty cycle for speed control. What I had to do is use Shottky fast acting diodes. Would a capacitor paralleled with the motor help prevent holes being burned in the MosFETs? I also have MosFETs rated at 120 A. I can't find the video again, but someone said I can push 120 A continuous through the MosFET in a TO-220 package. I have difficulty wrapping my brain around 120 A through a TO-220 package. Is 12 to 15 A more realistic, using 3 MosFETs paralleled for each motor. Or with 4 motors, can I just parallel 12 MosFETs to drive all four motors?? I am using a PWM to drive the gates.
