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Basic Electronics Lab Exercise Lab Exercise # 01/02: Date: Current Voltage Relation of Diode Roll No.: 1. Calculate the forward voltage and current through diode at different supply voltage. Forward Bias Supply Voltage VS Forward Voltage VF Forward Current IF Reverse Bias Reverse Voltage VR Reverse Current IR 0.25 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 2. Obtain the characteristics graph based on measured data in 1, specify the type of diode and forward voltage. 3. Advantage of Silicon over Germanium diodes. 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 03: Half Wave Rectification Date: Roll No.: 1. Measure secondary voltage Vs (RMS), DC Voltage, RMS output voltage and fill table according to data. Input Voltage Turn Ratio Ns/Np 120, 60Hz 12:1 220, 50Hz 20:2 Secondary Volt. Vp(out) Voltage DC (Average) Voltage RMS 2. Show the input/output waveform of Halfwave Rectification obtained in class and also calculate RMS, DC voltage for rectified signal. Voltage DC (Average) = Voltage RMS = 3. Enlist three application of Rectifier. 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 04: Full Wave Bridge Rectification Date: Roll No.: 1. Measure secondary voltage Vs (RMS), DC Voltage, RMS output voltage and fill table according to data. Input Voltage Turn Ratio Ns/Np 120, 60Hz 12:1 220, 50Hz 20:2 Secondary Volt. Vp(out) Voltage DC (Average) Voltage RMS 2. Show the input/output waveform of Halfwave Rectification obtained in class and also calculate RMS, DC voltage for rectified signal. Voltage DC (Average) = Voltage RMS = 3. What happen if we directly connect the diode with 220V AC source if it has 24v PIV? 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 05: C-Tap Full Wave Rectification Date: Roll No.: 1. Measure secondary voltage Vs (RMS), DC Voltage, RMS output voltage and fill table according to data. Input Voltage Turn Ratio Ns/Np Secondary Volt. V1 Vp(out) Voltage DC (Average) Ripple V2 120v, 60Hz 220v, 50Hz 2. Show the input/output waveform of Halfwave Rectification obtained in class and also calculate RMS, DC voltage for rectified signal. Voltage DC (Average) = Voltage RMS = 3. Difference between Full Wave Bridge and Centre-Tap Rectifier. Consider if Vp (Maximum Secondary terminal Voltage) is 24V the calculate the output DC voltage of FWB and CTR. 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 06: Date: Characteristics of Zener Diode and Voltage Regulation Roll No.: 1. Calculate the forward voltage and current through Zener diode at different supply voltage. Forward Bias Supply Voltage VS Forward Voltage VF Forward Current IF Reverse Bias Reverse Voltage VR 0.5 1.5 3 4.5 6 2. What happen if Zener diode connect in forward bias? 3. Difference between Zener and avalanche breakdown? 16 Mechanical (Section A & B) Reverse Current IR Basic Electronics Lab Exercise Lab Exercise # 07: Design of DC Power Source Date: Roll No.: 1. Measure the following data: a. Input voltage, Vin (ac): b. Step down voltage, Vs (ac): c. Voltage capacitor, Vc (dc): d. Ripple voltage, Vp (ac): e. Output voltage, Vo (dc): f. Output Current, Io (dc): 2. What is frequency and time period of DC voltage? 3. Name the reactive/energy storage elements and why they are important in AC to DC conversion. 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 08: Date: Wave Shaping Using Diode Roll No.: 1. Submit a picture of your circuit and output waveform. 2. How a double diode clipper can be used to design a square wave. 3. Define series and parallel clippers? 16 Mechanical (Section A & B) Basic Electronics Lab Exercise Lab Exercise # 09/10: Date: Transistor Characteristics & Switching Roll No.: 1. Identitfy the terminals and type of transistor using data sheet. a. BD244A b. FJN13003 2. Find out the Maximum VCE (sat), VBE and IC from above models. 3. How many regions of operation does BJT have 4. Draw schematic symbol for PNP and NPN transistor. 5. List the commonly used biasing method of transistors. 16 Mechanical (Section A & B)