Determine the voltage ripple at RL assuming the same conditions described in the first portion of this problem. NOTE: You will need to use rz and Vzo. Determine the minimum value for R₁ that still keeps the Zener Shunt Regulator in reverse-breakdown. According to the datasheet Iz must be ≥1mA for the Zener to stay in reverse-breakdown. Zener Diode Shunt Regulator In lab, we will be using the 3.3V 1N4728 Zener Diode in our shunt regulator circuit. Using the equivalent circuit for a Zener diode in Figure 16 and information pulled from the datasheet, solve for Vzo. Note: rz is listed as rdiff on the datasheet. We want to use the values from the datasheet for Iz and rz at the test conditions for Vz to be at 3.3V. Iz Vz Vzo N' Figure 16: Zener Diode Shunt Regulator Using Vzɑ and r² from above, solve for Rs and V₁(ripple) in Figure 17 to deliver 3.3V to a 4702 load RL. Use the values you calculated for VDC, V₁(ripple), Vp from the Full-Wave Rectifier with Filter C₁=100uF, RL=47092 problem above. Note: In order to deliver 3.3V to the load, you need to design your shunt regulator to deliver the appropriate current to the 1ks @ 3.3V and the 76mA necessary for the Zener to hold at 3.3V. From Wall Da Di Outlet 120Vrms (340Vpp) Dz D3 Transformer DO NOT Connect these two wires! GND R$ N Z₁ R₁ Figure 17: Full-Wave Rectifier with Filtering and Zener Shunt Regulation Probe Vous Probe GND
Determine the voltage ripple at RL assuming the same conditions described in the first portion of this problem. NOTE: You will need to use rz and Vzo. Determine the minimum value for R₁ that still keeps the Zener Shunt Regulator in reverse-breakdown. According to the datasheet Iz must be ≥1mA for the Zener to stay in reverse-breakdown. Zener Diode Shunt Regulator In lab, we will be using the 3.3V 1N4728 Zener Diode in our shunt regulator circuit. Using the equivalent circuit for a Zener diode in Figure 16 and information pulled from the datasheet, solve for Vzo. Note: rz is listed as rdiff on the datasheet. We want to use the values from the datasheet for Iz and rz at the test conditions for Vz to be at 3.3V. Iz Vz Vzo N' Figure 16: Zener Diode Shunt Regulator Using Vzɑ and r² from above, solve for Rs and V₁(ripple) in Figure 17 to deliver 3.3V to a 4702 load RL. Use the values you calculated for VDC, V₁(ripple), Vp from the Full-Wave Rectifier with Filter C₁=100uF, RL=47092 problem above. Note: In order to deliver 3.3V to the load, you need to design your shunt regulator to deliver the appropriate current to the 1ks @ 3.3V and the 76mA necessary for the Zener to hold at 3.3V. From Wall Da Di Outlet 120Vrms (340Vpp) Dz D3 Transformer DO NOT Connect these two wires! GND R$ N Z₁ R₁ Figure 17: Full-Wave Rectifier with Filtering and Zener Shunt Regulation Probe Vous Probe GND
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:Determine the voltage ripple at RL assuming the same conditions described in the first portion of this problem.
NOTE: You will need to use rz and Vzo.
Determine the minimum value for R₁ that still keeps the Zener Shunt Regulator in reverse-breakdown. According
to the datasheet Iz must be ≥1mA for the Zener to stay in reverse-breakdown.
Transcribed Image Text:Zener Diode Shunt Regulator
In lab, we will be using the 3.3V 1N4728 Zener Diode in our shunt regulator circuit. Using the equivalent circuit
for a Zener diode in Figure 16 and information pulled from the datasheet, solve for Vzo.
Note: rz is listed as rdiff on the datasheet. We want to use the values from the datasheet for Iz and rz at the test
conditions for Vz to be at 3.3V.
Iz
Vz
Vzo
N'
Figure 16: Zener Diode Shunt Regulator
Using Vzɑ and r² from above, solve for Rs and V₁(ripple) in Figure 17 to deliver 3.3V to a 4702 load RL. Use the
values you calculated for VDC, V₁(ripple), Vp from the Full-Wave Rectifier with Filter C₁=100uF, RL=47092
problem above.
Note: In order to deliver 3.3V to the load, you need to design your shunt regulator to deliver the appropriate
current to the 1ks @ 3.3V and the 76mA necessary for the Zener to hold at 3.3V.
From Wall
Da Di
Outlet
120Vrms
(340Vpp)
Dz
D3
Transformer
DO NOT Connect
these two wires!
GND
R$
N
Z₁
R₁
Figure 17: Full-Wave Rectifier with Filtering and Zener Shunt Regulation
Probe
Vous
Probe GND
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