why the cut in voltage of the LED is higher then diode?
WHAt is the reason of not using the LED in the rectifier
circuit

Answer Posted / anil

cut in voltage of LED is higher bcoz LEDs are made up of
GaAs or GaAsP which has more threshold voltage.....

LEds are not used in rectifiers bcoz firstly they have more
cut in voltage so it creates a problem while rectifying low
voltages....and
secondly the PIV rating of LED is less than a typical Si
diode....so LED can get damaged during the negative portion
of the AC voltage....

Is This Answer Correct ?    19 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what are the basic courses can be done for ece branch?

1581


1 what is 5P00F METHOD IN 8085 MIC. PRO. 2 what is NEXT STATE FUNCTION SYNTHESIS 3 HOW THE MULTI LEVEL FAULT CAN BE DETECTED

1593


What is an eeprom?

709


In order to find out stack fault of a three input nand gate how many necessary input vectors are needed ?

4598


Name some of the current controlled (current driven) devices?

942






Why is transistor called a current controlled device ?

683


pls what type of questions asked in interview of appsc polytechnic govt lecturers mail to kram.thulasi@gmail.com

2830


What is the internal structure of op-amp and explain each block in brief?

697


What is meant by voltage regulation of a dc power supply?

700


Explain avalanche breakdown?

812


How is cad used with electronics? Give example.

651


what is an adder or summing amplifier?

700


how can i prepare for the apgenco can u send old qps to jeedipally@gmail.com

3073


What are different categories of antenna and give an example of each?

707


how do link aT1 from the 1st BTS to 2nd BTS4?

1742