| ??? 02/11/09 09:45 Read: times |
#162273 - Basic electronics Responding to: ???'s previous message |
Dave Brooks said:
Here is a nice website that describes the differences between both types of transistors:
http://www.kpsec.freeuk.com/trancirc.htm Not only that, it also tells you the basics of how transistors work, and how to use them - including connecting to an IC. You would do well to study it thoroughly, and do some basic experiments with simple transistor circuits. Once you have the basics of how transistors work, then you can move on to connecting them to microcontrollers... Remember that the standard 8051 port output pin is basically Open-Drain - so it can sink current, but not source current. Further details in the so-called "bible" for the 8051: http://www.8052.com/faqs/120112 |
