🚀 go-pugleaf

omg grrr.id.au wrote:

>>"John Doe"
>>
>>>I have a 75332P MOSFET on a cordless drill controller heatsink. I
> 
> Fairchild datasheet says:
> PART NUMBER  PACKAGE  BRAND
> HUF75332P3   TO-220AB 75332P
> 
> 60A, 55V, 0.019 Ohm, N-Channel UltraFET Power MOSFETs

I had no trouble finding the data, by simply entering the distinct
"75332P" into a search engine. From the little I know about
electronics, I could not figure out anything from the data, except
that the device is a MOSFET. 

>>> guess it's part of a pulse width modulator. The drain (flange)
>>> connects directly to one of the battery terminals.
>>>
>>> Does the MOSFET drain go directly to the battery minus/ground
>>> terminal? Or does it go to the battery plus terminal?
> 
> Didn't you take a photo before disconnecting the thing?

No, but I can look inside of another drill.

>>** Not enough info.
>>
>>   Surely you can trace the wiring.
> 
> Yes, only one way will make any sense.  

And which way is that?

So... Somebody who is trying to do homework is chastised. But 
someone who needs an answer is treated as student who needs to 
learn. You don't like someone else is teaching him, you want to 
be the teacher. Sounds like some wannabe mentors aren't getting 
enough attention these days. I don't want to learn electronics 
right now, I'm too busy doing something else at the moment.
Knowing everything would be nice, but that's what UseNet is for.
Just like when one of you needs technical information out of your
field. 

-- 












> Other way current will flow through the MOSFET diode, out of
> control. 
> 
> Grant. 
>>
>>
>>....  Phil
>>
> 

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> From: omg grrr.id.au
> Newsgroups: sci.electronics.design
> Subject: Re: 75332P MOSFET drain connected to which battery terminal?
> Date: Sun, 08 Jan 2012 13:21:45 +1100
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