Chad, sorry I had not seen your post until now.
I have seen this method of putting an inductance in series used very widely in smaller electronics like inverters for fluorescent lights etc. It is simple and cheap but maybe in larger things it might make sense to use other methods if the...
One simple way to deal with it is to put an inductance in series with the supply. The brief time during which both switches are on just results in a manageable current increase which stores energy in the inductor and this energy is immediately relased when one of the switches goes off. In many...
I do not understand this. All it takes is a capacitor at the switch input. Using a microcontroller seems much more complex than necessary. If you want low input and output ripple and minimal RFI then Cuk topology seems a good choice.
I disagree. I think a good engineer should try to learn and understand as much as possible and not just blindly follow some local code. I believe the thoughts of other engineers here would be interesting. I believe that codes often have requirements that make no sense and it is healthy to...
I ilike the polarised part. I also like the fact that those plugs can be used as a throwable weapon or even ship's anchor :)
Regarding the fuse, I have got more grief than safety. In the UK I bought an adapter for my laptop's power supply but the initial surge blew the fuse. I have since...
Another thing I do not quite like is that the European plugs are not polarised.
http://en.wikipedia.org/wiki/Europlug
http://en.wikipedia.org/wiki/Schuko
I believe there are definite advantages to polarised plugs and no significant disadvantages.
Look at the block diagram in tha page titled "Theory of Operation". The regulation works by PWM of three sets of SCRs and then a three-phase transformer and rectifier bridge. Those three phases share the load. If you try to run this on one phase what will happen is (1) ripple will be much...
Actually I should have said "230 V" since it was standardised at that some time ago but it used to be 220 and that's what you still hear even when we all know it's 230. Just the force of habit.
The more I think about the requirement for the breaker to break the neutral too the less reason I see...
Local (not really important where) electric code has introduced some changes for residential installations for which I would like to hear your opinions. We're talking 220V supplied between neutral and live (one phase of 3 phase system). We are talking about general residential low power...
VE1BLL, thanks. I did not receive a reply the first time around so I have tried again. Maybe they are just not interested in selling a single unit. Still, I have tried again.
I am repairing a SMPS which uses a Sanken STRT-G6153 IC for which I can find no replacement or datasheet. It is a SMPS control circuit which includes the switching FET and is TO220 with 5 pins. If possible I would like to find a replacement or equivalent but this is proving impossible so far...
As has been said, there are two aspects: (1) sensor and (2) computer interface. I won't get into the sensor except to say, as has been said, that sensors are always trickier than they seem.
Regarding the computer interface I do want to mention the Velleman K8055 USB interface board which is...
You might want to check thread237-153197 and specially the post by wiretwister dated 30 Apr 06 20:45 where he explains another method for determining polarity.
This is not my specialty but I'll give you my thoughts while someone more knowledgeable comes along. I think you can conduct some low voltage tests which will give you some indications.
If what you have in these six windings is really three half windings for three poles then it should be...
