Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 1 (Q.No. 37)
37.
A bridge rectifier circuit has input of 50 Hz frequency. The load resistance is RL and filter capacitance is C. For good output wave shape, the time constant RLC should be at least equal to
Answer: Option
Explanation:
Time constant RLC must be about 5 x 20 ms.
Discussion:
5 comments Page 1 of 1.
Raj said:
1 decade ago
Why 5*20 ms tell me?
MEENU said:
10 years ago
Time = 1/frequency = 1/50 = 20 msec.
Capacitor fully charge time = 5xTime.
Rc = 5x20 ms = 100 msec.
Capacitor fully charge time = 5xTime.
Rc = 5x20 ms = 100 msec.
(1)
Chunilal said:
10 years ago
Why 5 and not any other number?
Mahesh kumar said:
9 years ago
In bridge rectifier, to get good output it must have 5-time constants i.e 5 RLC.
Jom said:
6 years ago
t=5T max time for rc.
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