Electronics - Diodes and Applications - Discussion
Discussion Forum : Diodes and Applications - General Questions (Q.No. 10)
10.
The characteristic curve for the complex model of a silicon diode shows that
Discussion:
14 comments Page 1 of 2.
Ashish dhyani said:
1 decade ago
@Anub.
Lets say we have a P.N junction diode,
Lets connect it in forward bias. ok.!
It means + of battery is connected to "P"(majority holes)
- of battery is connected to "N"(majority electrons).
So when when v increase the incoming current, electrons(-ve charge)in P gets attracted towards the positive terminal(+)of battery and holes(+ve charge)get attracted to Negative terminal(-ve). So the width of barrier increases.
Lets say we have a P.N junction diode,
Lets connect it in forward bias. ok.!
It means + of battery is connected to "P"(majority holes)
- of battery is connected to "N"(majority electrons).
So when when v increase the incoming current, electrons(-ve charge)in P gets attracted towards the positive terminal(+)of battery and holes(+ve charge)get attracted to Negative terminal(-ve). So the width of barrier increases.
ARJUN said:
9 years ago
In forward biasing, when 'p' terminal is connected with 'p' side of the battery and 'n' terminal is connected with 'n' side of the battery, then the potential barrier is increasing with increase in voltage because holes are attracted by positive charge and electrons is attracted by the negative charge.
Savan Kalal said:
1 decade ago
What does it mean by complex model of a diode?
If it is reverse biased then by increasing reverse saturation current we have slight increment in the barrier potential of a diode else in case of forward bias its not possible.
If it is reverse biased then by increasing reverse saturation current we have slight increment in the barrier potential of a diode else in case of forward bias its not possible.
Jitendra prajapat said:
1 decade ago
I think @ANUB is right. Because:
The barrier potential is varies with heat and temp. Also with the increase in temp. Number of charge carrier increases hence current is increases and barrier potential decrease.
The barrier potential is varies with heat and temp. Also with the increase in temp. Number of charge carrier increases hence current is increases and barrier potential decrease.
Sunil said:
1 decade ago
P type majority charge carriers are holes. So in forward bias holes are repelled by the positive terminal of the power supply. So the barrier potential decreases with increase in input voltage in forward bias.
Aryan said:
9 years ago
In forward bias potential barrier decreases and therefore current increases ---> this simply implies that with the increase in current, potential barrier decreases.
Neelaji said:
1 decade ago
When we increase supply voltage the conductivity also increases so mobility of charge carriers also increases then barrier potential decreases
Anub said:
1 decade ago
Kindly explain, how can barrier potential get increases with increase in current when both are inversly proportional to each other.
Vamsi said:
1 decade ago
During forward biasing the depletion width will be reduced and causes for reduce in the barrier potential but not to increase.
Gideon wills said:
10 years ago
I also think the answer lies in the meaning of complex model silicon. Else what @Savan said is right.
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