gnupic: Adapters (slightly off-topic)
Subject:
Re: Adapters (slightly off-topic)
From:
Ralf Forsberg ####@####.####
Date:
9 Feb 2002 13:23:35 -0000
Message-Id: <20020209131921.GA10931@home.se>
On Sat, Feb 09, 2002 at 12:26:22PM +0000, Tim ODriscoll wrote:
>
> Hi everyone,
>
> Apologies for the off-topic nature of this one..
>
> I'm just starting out in the exciting world of pic's, and after much
> deliberation I've decided to go with the JDM serial port programmer
> (mainly because it doesn't need an external power supply).
>
> The trouble I'm having (that numerous Google searches don't help) is that
> the transistor in the circuit is a BC547B, with a body type of TO92c. I've
> discovered that this body type has pins called Gate, Source and Drain.
Gate Source and Drain are the names used for FET's (field effect transistor).
Bipolar transistors, which BC547B is, have these names:
> When I was at school, the pins were Base, Collector and Emitter, and you
You can see a data sheet at:
http://www-us2.semiconductors.philips.com/acrobat/datasheets/BC546_547_3.pdf
FET's and bipolars are very different...
Here's an explanation:
http://whatis.techtarget.com/definition/0,,sid9_gci211668,00.html
/ Ralf
