Unknown Part

[Alex123]

I've been disassembling a circuit to see how it works and have come across a part
that no-one in my uni is 100% sure about

Would be great if someone can identify it for me
Thanks

 

[davenn]

either a printed resistor or inductor

what did it come out of?
where in the device did it come from
make model and more photos

 

[Alex123]

It comes from an ignition circuit/spark generator. Has no model number on that part. But it would most likely be a inductor in that case since it's in the secondary side of the transformer where there will be no reason for a resistor to be there
Sorry if I'm being very vague. It's hard to explain :S

 

[davenn]

Sorry if I'm being very vague. It's hard to explain :S

no probs
The pic didn't really help unfortunately
have you used a multimeter in Ohms range and see if you can measure a resistance of the part ?


Dave

 

[cjdelphi]

My bet is it's a heating element. ..

 

[Alex123]

Just checked and the multi-meter is not able to measure any resistance in the part

 

[davenn]

Just checked and the multi-meter is not able to measure any resistance in the part

OK so it may be open circuit

any chance of a better pic of it ... it's small and far away in that first pic you posted
is there any text on it on either side ?


Dave

 

[ChosunOne]

Some transformers have fuses on the secondary side. That would explain the zero-resistance.

 

[davenn]

Some transformers have fuses on the secondary side. That would explain the zero-resistance.

this part isn't a transformer tho

 

[Alex123]

My camera is struggling to focus. These are the best I can get them close up.
There is no letters or numbers on it which seems a bit strange

 

[davenn]

Just checked and the multi-meter is not able to measure any resistance in the part

thinking this should be clarified ...
did the meter real OL or 0.0 or something else ?

My camera is struggling to focus. These are the best I can get them close up.
There is no letters or numbers on it which seems a bit strange

That's ok
still looks like a carbon track resistive element on a ceramic substrate rather than an inductor

What its purpose is, without seeing a diagram is almost impossible to tell ?
have you tried to google for a circuit diagram or anything else ?


Dave

 

[Alex123]

The multi meter showed 0.0 as if it's an open circuit.

Suppose it was a resistive element. Would it be used to limit the current on the secondary?

My task is to reverse engineer it for part of my project from what I can see, the primary side has a self oscillating MOSFET to control the switching. Secondary side has a few capacitors and diodes that look like they are arranged as a voltage multiplier and with that ceramic part connected in parallel to few of the capacitors.

I'm guessing this circuit follows a few concepts of what I'm looking at

And the product I have is something like this
http://m.ebay.com/itm/DC-6V-12V-to-...gh-voltage-Generator-/141812580611?nav=SEARCH

 

[davenn]

Sorry mate

thread closed
we do not discuss the building of weapons
please reread the forums rules that you agreed to when you joined the forum

cheers
Dave