Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi everyone,
I have noticed that with modern consumer electronics, the switching mode power supply is almost always the weakest part regarding realiability. However, the laws and regulations are continously pushing designers from linear power supplies to SMPS because of energy effeciency. This...
Thanks for a quick reply!
My regulator's datasheet only says that the junction-to-air thermal resistance is 160 C/W. Other thermal resistances are not told. But it's a normal SOIC8 case, and the calculated power dissipation is about 0.35 W.
The 55 Celcius reading was taken at full load, and I...
Hi, I thought about upping this old thread.
Did you ever finish testing?
I have been in a same kind of situation myself. I have a SOIC8 cased regulator and measured the surface temperature with a ir meter at 55 celcius. Do you think this is too hot? The system is working, but how much am I...
Hi everyone,
I am designing a two layer board for standard 0.063 inch FR4, which will have both 230VAC high voltage components and a low voltage SELV rated area after a safety transformer. I have investigated that for my purposes (according to IEC 60335-1) the creepage distance between 230VAC...
Re: I need some help selecting a transformer for old hardwar
So the old tranformer is an external wall-pluggable power supply? Just pick it up and look at the specifications written on it. If you need help, report the specs here. There is not much we can do otherwise. If the synth needs dual...
Hi,
If 30 Amps is enough, let me recommend Allegro's ACS712, which goes for about 2 EUR/pcs at 100+ quantities. I have used it in a couple of projects and it really is a good performer for the price, which is less than the price of similar ready-to-use current tranformers that I have found...
Hi all,
I have a simpe but very tricky problem/question regarding power measurement that I would like to share with you. I have been thinking about this for a while, and cannot achieve a solution, or even a statement that is this possible or not.
The case is, that I would need to measure a...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
