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Derive an expression for efficiency of full and half wave rectifier?
The efficiency(n) of fullwave rectifier is defined as: n=DC output Power/AC input power But Power=V*I n=Vdc*Idc/Vrms*Irms But Vdc=2Vm/pi,Idc=2Im/pi ,Irms=Im/root(2),Vrms=Vm/root(2) (Im:Peak Curent) n=(4Vm*Im/pi^2)/(Vm*Im/2)=8/pi^2=0.812=81.2%. So efficiency of full wave rectifier is 81.2%
What happens if a DC motor is powered by a rectifier?
When a DC motor is powered by a rectifier, the rectifier converts alternating current (AC) from the power source into direct current (DC), allowing the motor to operate. The rectified output provides a unidirectional current that energizes the motor's windings, enabling it to generate torque and rotate. However, the performance may vary depending on the rectifier type and the quality of the DC output, potentially affecting the motor's speed and efficiency. Additionally, if the rectifier produces a pulsating DC, it may introduce vibrations and noise into the motor operation.
Why do we use rectifier kit?
Working the rectifier
What is the role of center trapped transformer in full wave rectifier?
centre tap transform convert ac into full wave rectifeir dc .It needs only two diodes but efficiency is less.
What is use of rectifier?
Rectifier is used to convert alternating current to direct current.
Why full wave rectifier is preffered over half wave rectifier?
Efficiency is double in case of full wave rectifier.
Define the efficiency of a rectifier?
The conversion efficiency n of a rectifier ckt is generally defined as Na= dc power delivered to the load/ ac power input to the rectifier ckt. Or n = Pdc/Pac
What is the rectification efficiency of a half wave rectifier?
40.56%
What was the major factor for developing the full wave rectifier?
1. Efficiency of full wave rectifier is better than other rectifiers i.e, Efficiency()=81.2%. 2.It's Peak Inverse voltage (P I V)=2Vm.
Transformer or rectifier is found in a computer?
Most computer power supplies contain both. The transformers are usually toroidal transformers for high efficiency and compactness.
What is the formula for rectification efficiency for full wave bridge rectifier?
It is defined as dc power delivered to the load to the ac input power from secondary transformer
Derive an expression for efficiency of full and half wave rectifier?
The efficiency(n) of fullwave rectifier is defined as: n=DC output Power/AC input power But Power=V*I n=Vdc*Idc/Vrms*Irms But Vdc=2Vm/pi,Idc=2Im/pi ,Irms=Im/root(2),Vrms=Vm/root(2) (Im:Peak Curent) n=(4Vm*Im/pi^2)/(Vm*Im/2)=8/pi^2=0.812=81.2%. So efficiency of full wave rectifier is 81.2%
Why do we use rectifier kit?
Working the rectifier
What is single phase Controlled rectifier?
such a control rectifier that control or rectifier single phase. for that purpose we used SCR that is called single phase controlled rectifier.
How many diodes in a bridge rectifier?
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.
What happens when one of the diodes is removed from the bridge rectifier?
Nothing will happen to the diode but that rectifier effectively becomes a half-wave rectifier.
How can capacitor smooth or reduce the ripple of the voltage produced by the rectifier?
when rectifier is on, the capacitor is almost transparent (it charges to the voltage provided from the rectifier) when rectifier is off, capacitor holds the peak voltage since it stored a charge during rectifier on time.
