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--- university:courses:electronics:electronics-lab-26 [29 Oct 2012 18:43] – created Doug Mercer
+++ university:courses:electronics:electronics-lab-26 [05 Mar 2019 10:57] – [Questions:] Antoniu Miclaus
@@ Line 6: / Line 6: @@
 ===== Materials: =====
-Analog Discovery Instrument\\
+ADALM2000 Active Learning Module\\
 Solder-less Breadboard\\
-- 1KΩ Resistor (R<sub>S</sub>)\\
+- 1KΩ Resistor (R<sub>S</sub>)\\
-- 5KΩ Variable resistor, potentiometer (R<sub>L</sub>)\\
+- 5KΩ Variable resistor, potentiometer (R<sub>L</sub>)\\
 - Zener diode (1N4735 or similar)\\
 ===== Directions: =====
-Build the circuit shown in figure 1 on your solder-less breadboard using the 1N4735 6.1 volt zener diode. Use AWG1 and the -5V Vn user supply to establish the DC supply V<sub>IN</sub>. Use various fixed and variable resistors for R<sub>L</sub>.
+Build the circuit shown in figure 1 on your solder-less breadboard using the 1N4735 6.1 volt zener diode. Use AWG1 (5V constant) and the -5V Vn user supply to establish the DC supply V<sub>IN</sub>. Use various fixed and variable resistors for R<sub>L</sub>.
 {{ :university:courses:electronics:a26_f1.png?600 |}}
@@ Line 20: / Line 20: @@
 <WRAP centeralign> Figure 1 Zener Diode regulator </WRAP>
-===== Measurements: =====
+Hardware Setup:
-. Monitor and report the load voltage V<sub>L</sub> by using the Waveforms Voltmeter instrument to measure V<sub>L</sub> for R<sub>L</sub> equal to:\\
+{{ :university:courses:electronics:zener_reg-bb.png |}}
-(a) Open circuit\\
-(b) 10 kΩ\\
+<WRAP centeralign> Figure 2 Zener Diode regulator Breadboard Circuit </WRAP>
-(c) 1 kΩ\\
-(d) 100Ω\\
+===== Procedure: =====
-. Replace the load R<sub>L</sub> with a 5K? potentiometer, and adjust the potentiometer to determine the minimum value of R<sub>L</sub> for which V<sub>L</sub> remains within 10% of the zener voltage V<sub>Z</sub>. Measure and report the resistance you set the potentiometer to. How does this resistance relate to the value of R<sub>S</sub>?
+. Monitor and report the load voltage V<sub>L</sub> by using the Scopy Voltmeter instrument to measure V<sub>L</sub> for R<sub>L</sub> equal to:\\
+  * Open circuit\\
+{{ :university:courses:electronics:zener_reg-wav1.png |}}
+<WRAP centeralign> Figure 3 R<sub>L</sub> = Open Circuit Zener Diode regulator waveform </WRAP>
+  * 10 kΩ\\
+{{ :university:courses:electronics:zener_reg-wav2.png |}}
+<WRAP centeralign> Figure 4 R<sub>L</sub> = 10kΩ Zener Diode regulator waveform </WRAP>
+  * 1 kΩ\\
+{{ :university:courses:electronics:zener_reg-wav3.png |}}
+<WRAP centeralign> Figure 5 R<sub>L</sub> = 1kΩ Zener Diode regulator waveform </WRAP>
+  * 100 Ω\\
+{{ :university:courses:electronics:zener_reg-wav4.png |}}
+<WRAP centeralign> Figure 6 R<sub>L</sub> = 100Ω Zener Diode regulator waveform </WRAP>
+. Replace the load R<sub>L</sub> with a 5KΩ potentiometer, and adjust the potentiometer to determine the minimum value of R<sub>L</sub> for which V<sub>L</sub> remains within 10% of the zener voltage V<sub>Z</sub>. Measure and report the resistance you set the potentiometer to. How does this resistance relate to the value of R<sub>S</sub>?
 ===== Questions: =====
@@ Line 59: / Line 74: @@
 Add questions here:
+<WRAP round download>
+** Resources: **
+  * Fritzing files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/fritzing/zener_reg_bb | zener_reg_bb]]
+  * LTSpice files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/ltspice/zener_reg_ltspice | zener_reg_ltspice]]
+</WRAP>
+===== For Further Reading =====
+Zener Diodes http://en.wikipedia.org/wiki/Zener_diode
+**Return to Lab Activity [[university:courses:electronics:labs|Table of Contents]]**

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