Tuesday, February 22, 2011

CrazyEngineers Forum - Electrical & Electronics Engineering

CrazyEngineers Forum - Electrical & Electronics Engineering


history of micro controller

Posted: 22 Feb 2011 02:09 AM PST

hey friends,
after the history of micro processor now i came with the history of micro controller
as i learned in my class today i known that history of micro controller is great thing and i am posting it here

the first micro controller is hitachi hmcs 40
it is 4 bit micro controller it is a basic controller and mostly used in small applications

next coming to 8 bit micro controller here occur's two generations or types
these two are designed by intel
these two controllers are 8048 and 8051
these two are also used in small applications and 8051 is mostly used in small applications like speed control of D.C machines

next intel given the 16 bit micro controller
it is intel 80c196
this is mostly used in pwm applications

next coming to the 32 bit micro controller
this is also designed by intel it is intel 80960
it is mostly used in sophisticated technology like air craft landing
and it is in avionics
i believe all the CEans know about avionics

this all about the micro controllers history
hope all understood this topic and please post any additional matter is there if i had missed

Series and Shunt diode Clipper Circuits

Posted: 21 Feb 2011 10:12 AM PST

why in a series clipper diode circuit,during the forward biasing half cycle the voltage across the diode rises according to the input sinosuidal supply whereas in shunt type clipper diode circuit,during the forward biasing half cycle it stuck only to its barrier voltage level????

No comments:

Post a Comment