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Posts posted by ante
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Here is some constructive thinking:
What is there to discuss in a thread if not things like adapting a circuit (a project) to some specific needs and how to improve it in different ways? I believe that even though a circuit might work there is always room for improvements. Improvements can be many things like reliability, the choice of parts (the author might have had bipolars in his junkbox and MOSFETS are a better option if available) or just a change of a layout to save space. All these and more mods do not mean that the circuit is unusable as is just that it could be improved! So, if this kind of Q&A doesn’t belong in Projects Q&A I don’t know the proper place for them!
Problem nr2.
At this stage I am not prepared to name the two whom have threatened me since the magnitude of the threats are serious. All I can tell you is right now is that the background is that some of the links I have posted leads to pages where sometimes other links might reveal pictures of women/girls without covered heads/faces! One example of this attitude is that Logan was told to remove his avatar some time ago; though this was in the open (not PM or Mail) there was no serious threat (much to smart for that) and Logan refused and still has the avatar!
I resent this kind of things even though I don’t want to take any unnecessary risks. A place like this should at all times be free from all kinds of religious fanatics and those who do not believe in equal rights for man and woman! -
I’d say it’s 99.99% sure they are capacitors!
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MP, I am very disappointed!
What’s the point of deleting a working project?? Just because it’s one of Audiogurus projects? Don’t use the power as a moderator for some personal vendetta! I think that’s plain dumb and you are only making a fool of yourself this way! And why the hell are you deleting my posts? What was wrong with them? Show me the rule I have broken!!! I know AG is sometimes a little too much but all actions against him should be objective and aimed at the things he does wrong and absolutely not against any working project.
So, give him credit for what he’s good at and whack his head only for the things he does wrong!
This place used to be fun to contribute to but now I am not so sure anymore. I was already fed up with being threatened by some members so I’m considering quitting anyway unless some things change. And now this.
I guess I have played out my role here anyway! -
OK, so this is no longer an open forum?! You fix it through the mail so no one else can learn from it?! Fine!
I am not sure I want to participate in a dictatorship!
Thank you! -
Hi henry,
A picture would help significantly! -
As I mentioned before; I believe it’s a capacitor too! Yes it makes sense. ;)
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OK guys, thanks for the tip! ;D
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This might be a stupid question but; how do I get here (Moderator’s board) without going through (feedback/Comments) board and Moderators only topic every time?
Thanks! -
Hi Victor,
I don’t want to rain on your parade here but I can see a few problems with this design. The fans are not suitable for this job for a number of reasons, torque, rpm and the loss of balance and the disturbance of the electronic commutating the magnets would create. -
Oh the Immobilizer, well I’m not sure how it’s done on a bike but if it’s anything like many cars got you really need good knowledge about the circuit to override it! As mentioned before someone on the inside would help. Usually they put the code part inside the same chip (not only the same circuit) that has the control of the fuel pump and/or injector nozzles. This will then require microsurgery to override! ;D
However some manufacturers can supply you with a new set of keys if you give the frame number and also can verify that you are the legal owner of the bike. -
I believe it’s a good idea to put a MOV on the primary side of the transformer (which I presume you’ve got for the 24VAC). For 230VAC I usually put a 275V MOV as a protection, it has worked fine so far. ;)
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Hi ska boss,
Welcome to our forum.
Are you looking for the relationship or the actual current capability here? -
Sounds like cheap low grade quality!
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Hi roger,
Welcome to our forum.
These things can be very tricky to get your hands on, unless you know somebody on the inside.
May I ask what the purpose is; a mod, repair, tuning or just curiosity? -
An assignment no doubt! At least you did not put this in the wrong place like your class mate did! 8)
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Hi, Ante. Sorry to be late.
The original project is to feed an ac induction motor using voltage
source inverter(VSI).So this first needs dc input from one of the
following: battery(solar power),diode bridge rectifier or chopper.Using
this as an input the inverter gives an output of AC.But this AC is variable
in voltage and frequancy magnitude so that the torque and speed of the
motor can be controlled.
An induction motor is not easy to regulate. -
Hi,
Some of these meters has a working voltage of 5.0V, have you checked its datasheet? You might have killed it! :o -
I agree, that’s good advise!
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I suppose you don’t have any circuit diagram or a picture to show where this part is located relative other things in the circuit?! That might give some ideas of what this part is doing in its environment.
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Hi hangwaiter,
Welcome to our forum.
Is this an assignment? 8)
Well, if you got DC from your “electronic transformer” you can use a PWM circuit to produce any light intensity between 0 an 100%. This can be a fixed pulse width selected by a switch, as you required. There is really not much choice here if you don’t want heat losses or are unable to regulate the primary of the transformer. -
Hi explorador,
Don’t forget to put a fuse in there somewhere to protect from disaster! ;) -
A small RC servo can be run from a simple 555 circuit.
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Hi Niksun,
The PSU is not any good for charging alkalines! The DC is much too good! You should use only a half wave rectifier and no smoothing cap for best results! -
Hi Guys,
Maybe ignoring is the medicine here! I know very well how hard it can sometimes be to keep the hatchet on :-X but it might work or it might not. I hate to make him think he won though! ;D Some people don’t give an inch even though you are standing on their throat. I have seen lately that “indulis” (a big bragger) is giving AG a hard time in some topics which makes me kind of happy! ;D
Bottom line we are all different, thank good for that and sometimes we can have bad day which makes us even more different! ;)
I haven’t had my hands in any speakers from Leslie but I think I have handled some reverb or echo devices, not sure though?
protecting 24vac motor controller - zener, MOV or both?
in Electronics chit chat
Posted
I suggest a fuse (in series) and a 32V MOV (in parallel) on the power input of the board.