Question

Power Supply with Zener Voltage regulator D4 131 12 Vpk Vs 60 Hz 0° D2 D3 2. Simulate the bridge rectifier with three different filter capacitors(1uf, 5μF and 10μF) and observe output waveforms. Compare ripple voltages, estimation vs. simulation values Plot v, and vout waveforms.

Answer 1

C for capacitor C=DF Average DC output UoHage vdc = 6-7492 V dc61482

XSC1 Ext Trig D2 D1 V1 +12Vpk 60Hz 0° R1 D4 D3 C1

Ripple voltage= 10.6193-6.3448=4.2745

Design1 978m 964m 974m 968m 986m -982m 960m-956m 15.0 15.0 2 2 10.0 10.0 5.0 S U5.0 0.0 C t0.0 -5.0 5.0O O -10.0 2 10.0 2 15.0 15.0 -5m Om 5m10m 15m20m 25m 30m 35m 40m45m 50m T ime (S Input VoltageOutput Voltage Cursor Input Voltage Output Voltage Selected Trace:Output Voltage | 4.0331m 4.0331m 11.9426 10.6193 yl 10.0795m 10.0795m 6.3448 -7.3240 y2

For Capacitor C-SAF maximum output uoltaoa) iCmax)-2Up Vo(mar) = ' 2-(2x0.7) Auerage Dc output uoltage vac 2XIO.6 Nac Ripple uotta 2fcR Vy i 1-1247U

XSC1 Ext Trig D2 D1 V1 R1 0° D4 D3 C1

Design1 1.0506 1.05021.0500 1.0498 -1.0496 -1.0494 -1.0492 -1.0488 15 15.000 10.714 6.429 5 2.143 I 0.000 -2.143 -6.429 -10 2 10.714 -15 15.000 -5m 0m 5m 25m 35m 45m 15m 55m Time (s) mputVoltlageOutput Voltage Cursor Input Voltage Output Voltage Trace: Output Voltage 4.120Om 4.120Om yl 11.9483 10.6078 11.0000m -10.1142 11.0000m 9.3827 y2

Ripple voltage= 10.6078-9.3827= 1.2251

For capacitor c=rou F o(max i(max) ~ Ripple voltaqe ur-ac 2fCR VY 0.5623

XSC1 Ext Trig D1 D2 V1 +12Vpk 0° D4 D3 R1 C1

Ripple voltage= 10.6573-10.1479= 0.5094

Design1 1.01345554 -1.013455461.01345542 1.01345538 -1.01345530 15 15.000 10.714 6.4295 2.143I 0.000 2.143 O -6.429 -10 2 10.714 -15 15.000 -5m Om 5m 10m 15m 20m 25m 30m 35m 40m 45m 50m55m 60m T ime (S Input VoltageOutput Voltage Cursor Input Voltage Output Voltage Selected Trace:Input Voltage | Select 12.4200m 12.4200m -11.9480 10.6573 yl 2 20.0467m 20.0467m 11.4248 10.1479 y2

Observations:

When capacitor value increases the ripples in the output waveform decreases.

capacitor in Farads	Ripple voltage in voltage
	Estimation	Simulation
1u	5.623	4.2745
5u	1.1247	1.2251
10u	0.5623	0.5094