Basically , rectifier is used to convert a.c into d.c . The bridge rectifier is used in all power supply section of all device which are operated on D.C supplly.
For example in TV the circuit board is operated at 12 V D.C. so we need dc supply which is provided by rectifier. All SMPS ( Switched Mode Power Supplies) uses Bridge rectifier.
Efficiency is double in case of full wave rectifier.
"What is the functioning procedure of full wave rectifier by using SCRs?" "What is the functioning procedure of full wave rectifier by using SCRs?"
You use a half-wave rectifier where the system design does not require a full-wave approach. Half wave rectifier output is used for running ac motors.
It depends on whether or not it is a half wave or full wave rectifier. For a single phase 60 Hz rectifier, a half wave rectifier will be 60 Hz while a full wave rectifier will be 120 Hz. A three phase full wave rectifier will be 360 Hz.
An open diode will result in no output from a half wave rectifier, and an open diode will cut the output of a full wave rectifier in half.
full wave rectifier, because in half wave rectifier only one p-n junction diode Ans 2. In full wave rectifier both negative & positive cycles are rectified , but , in half wave rectifier only the positive or the negative cycle is rectified . That's why full wave rectifier provides more power .
Half wave rectifier makes the the sinusoidal wave uni-direction only in one half cycle and leave the other but in full wave rectifier both the cycles are made uni-directional.
The Ripple factor for full-wave rectifier is given by: r= Iac/Idc = 0.482
Use a full wave bridge rectifier.
A half wave rectifier is not as effective as a full wave rectifier. With a 1/2 wave, you are throwing away one hump of the sine wave...either positive or negative portion. With a full wave rectifier you get both humps...either positive or negative. The resultant effective voltage is much greater with a full wave rectifier, because there is very little time when the voltage is zero. The half wave is zero for 1/2 of the cycle.
Bridge Rectifier DiodesIn a "bridge" rectifier there is 4 diodes In a "full wave" there are 2 diodes.In a "half wave" rectifier there is 1 diode.
1N 4007