Electrical and electronics questions

k7elp60

Joined Nov 4, 2008
562
It is to insure the output terminal voltage is never greater than about 1V of the input terminal. If that happens the regulator could fail. With the way the diode is connected, if the input is higher than the output the diode will not conduct. If the output is higher the diode conducts and brings the voltages near equal.
 

jegues

Joined Sep 13, 2010
733
What is the purpose of the diode(D5) in the circuit :confused:
These are known as protection diodes, they are put in place to prevent external capacitors from discharging through any low current points into the regulator, which could potentially damage the IC.

D5 will protect your circuit from any discharge coming from the capacitors C4 & C5.

You can read more about it on the data sheet of the IC.
 

Thread Starter

Kanniyappan

Joined Oct 1, 2010
8
bu how you all can judge the purpose of the diode with this circuit diagram while i can't pls tell me also the uses of every electronic components and their response for the different output
 
Top