Full Moving Ridge Rectifier
We know that, converting a.c alternating voltage into d.c pulsating voltage is called rectification. The rectifier which converts both the one-half cycles of the a.c input voltage into the d.c output voltage is called every bit amount moving ridge rectifier.
TYPES:
There are ii types of amount moving ridge rectifier they are:
CONSTRUCTION:
The pump tapped transformer every bit the refer says it has pump tapped secondary coil.
Hence it got the refer every bit pump tapped rectifier. All the other parts are the same, it has ii pn junction diodes, a charge resistor, a capacitor for filtering the output, in addition to a fuse if necessary.
CIRCUIT DIAGRAM:
WORKING:
As seen from the circuit diagram the transformer has a pump tapped construction inward the secondary coil. The usage of the footstep downward transformer is that the diode plant entirely at the lower voltage atmospheric condition therefore at that spot is a necessary to convert the high voltage input to lower voltage output. The usage of diode is that it acts every bit a switch therefore it rectifies the oscillating input signal.
But the amount moving ridge rectifier plant inward ii unlike cycles, viz
(i) during positive one-half cycle(ie from angle 0 to 90degrees)
(ii)during the negative one-half cycle(ie from angle xc to 180 degrees)
(i) during positive one-half cycle:
During the positive one-half bicycle the diode at the upper business office of the circuit ie (diode 2) popular off forwards biased whereas the diode at the lower business office of the circuit (ie diode 1) is contrary biased resulting inward no output from the diode i exactly diode 2 entirely conducts which results inward the output. In this illustration for a ideal diode (resistance is zero) Vin=Vo across the load.
(ii)during negative one-half cycle:
During the negative one-half bicycle the diode at the lower business office of the circuit ie(diode 1) popular off forwards biased whereas the diode at the upper business office of the circuit(ie diode 2) popular off contrary resulting inward no output from the diode 2 whereas the diode i entirely conducts which results inward the output. For a ideal diode Vin=Vo across the load.
INPUT AND OUTPUT WAVEFORM OF THE FULL WAVE RECTIFIER:
note: the upper waveform is input in addition to the lower waveform is the output.
AVERAGE OUTPUT VALUE OR Vdc:
Vdc=(1/π)∫Vm sinwt dwt
=(Vm/π)[-coswt]lim 0-π
Vdc=2Vm/π
Idc=2Im/π
RMS OUTPUT VOLTAGE:
Vrms=(1/π)√[∫Vm^2 sin^2(wt) dwt]
=(Vm/√2√π)√[∫1-cos2wt dwt]
=(Vm/√2√π)√[wt-(sin2wt/2)]
Vrms =Vm/√2
Irms=Im/√2
RIPPLE FACTOR:
τ=√((Vrms-Vdc)-1)
=√((π/2√2)^2-1)
τ = 0.483
EFFICIENCY:
Effiency is given every bit the amount ability output to the amount ability input.
η=Vdc^2/Vrms^2
=8/π^2
η=81.2%
Tuf of amount moving ridge rectifier:
Tuf=power output /power rating of the transformer
=pac/Vrms.Irms
=8/√π^2
Tuf=0.8105
MATLAB SIMULATION CIRCUIT DIAGRAM:
TYPES:
There are ii types of amount moving ridge rectifier they are:
(i)center tapped transformer based rectifier
(ii)bridge rectifier
(i)CENTER TAPPED TRANSFORMER BASED RECTIFIER:CONSTRUCTION:
The pump tapped transformer every bit the refer says it has pump tapped secondary coil.
Hence it got the refer every bit pump tapped rectifier. All the other parts are the same, it has ii pn junction diodes, a charge resistor, a capacitor for filtering the output, in addition to a fuse if necessary.
CIRCUIT DIAGRAM:
As seen from the circuit diagram the transformer has a pump tapped construction inward the secondary coil. The usage of the footstep downward transformer is that the diode plant entirely at the lower voltage atmospheric condition therefore at that spot is a necessary to convert the high voltage input to lower voltage output. The usage of diode is that it acts every bit a switch therefore it rectifies the oscillating input signal.
But the amount moving ridge rectifier plant inward ii unlike cycles, viz
(i) during positive one-half cycle(ie from angle 0 to 90degrees)
(ii)during the negative one-half cycle(ie from angle xc to 180 degrees)
(i) during positive one-half cycle:
During the positive one-half bicycle the diode at the upper business office of the circuit ie (diode 2) popular off forwards biased whereas the diode at the lower business office of the circuit (ie diode 1) is contrary biased resulting inward no output from the diode i exactly diode 2 entirely conducts which results inward the output. In this illustration for a ideal diode (resistance is zero) Vin=Vo across the load.
(ii)during negative one-half cycle:
During the negative one-half bicycle the diode at the lower business office of the circuit ie(diode 1) popular off forwards biased whereas the diode at the upper business office of the circuit(ie diode 2) popular off contrary resulting inward no output from the diode 2 whereas the diode i entirely conducts which results inward the output. For a ideal diode Vin=Vo across the load.
INPUT AND OUTPUT WAVEFORM OF THE FULL WAVE RECTIFIER:
note: the upper waveform is input in addition to the lower waveform is the output.
AVERAGE OUTPUT VALUE OR Vdc:
Vdc=(1/π)∫Vm sinwt dwt
=(Vm/π)[-coswt]lim 0-π
Vdc=2Vm/π
Idc=2Im/π
RMS OUTPUT VOLTAGE:
Vrms=(1/π)√[∫Vm^2 sin^2(wt) dwt]
=(Vm/√2√π)√[∫1-cos2wt dwt]
=(Vm/√2√π)√[wt-(sin2wt/2)]
Vrms =Vm/√2
Irms=Im/√2
RIPPLE FACTOR:
τ=√((Vrms-Vdc)-1)
=√((π/2√2)^2-1)
τ = 0.483
EFFICIENCY:
Effiency is given every bit the amount ability output to the amount ability input.
η=Vdc^2/Vrms^2
=8/π^2
η=81.2%
Tuf of amount moving ridge rectifier:
Tuf=power output /power rating of the transformer
=pac/Vrms.Irms
=8/√π^2
Tuf=0.8105
MATLAB SIMULATION CIRCUIT DIAGRAM:
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