Sunday, July 22, 2012

basics of diode...@ ujs,@

diode is A very basic element of all electronics equipment we used in daily life....@..so lets see some basic but useful info about it..@>.i am not going to explain its characteristics and something else i only write some basic short intro which can be more useful  compare to  . heavy books@

lets start 

diode is 2 terminal device.which main function is  to block the current in one direction, and allow current to flow in the other direction. Current flowing through the diode is called forward current. 

there are many type of diode like -Rectifier diodes
                                                -Detector diodes
                                                - Zener diodes
                                                - Capacitance diodes
                                                - Tunnel diodes


Rectifier diodes -- these are the most common, with its function described above. 

Detector diodes -- these are more sensitive than normal rectifier diodes. They are used in radios and televisions to convert radio signals to audio or television signals. 

Zener diodes -- These diodes are the opposites of the normal diodes, because they are designed to conduct current in the backwards (reverse) direction BUT only at a very precise voltage. Zener diodes are used to regulate voltages (to behave sort-of like a battery). 

Capacitance diodes act as tunable capacitors and are also used in radios and TVs to allow electronic automatic tuning. 

Tunnel diodes are used in oscillator circuits

now you can easily understand that  heavy book .>>.@..so enjoy..@...... i provide u some basic info..@..it mAY be helpful to u..@..

see the application of diode -http://people.seas.harvard.edu/~jones/es154/lectures/lecture_2/diode_circuits/diode_appl.html

by -ujash .g .patel