EECE 312L Lab Report, Fall 2011

American University of Beirut ECE312 Lab MyDAQ Assignment 3 Bilal Itani 20110**** Due on 23/12/2011 1. Description of the hardware setup: Figure A-1: One diode clipping circuit We use AO0 & AGND of the MyDAQ from which we can get the input voltage signal. We use AI0+ & AI0- of the MyDAQ in order to plot the output voltage signal on the scope & measure the values needed. Figure A-2: One Zener clipping circuit Figure A-3: Two diode clipping circuit Figure A-4: Two Zener clipping circuit Figure A-5: Diode clipping with DC source Figure B-1: Voltage regulator used as DC source 2. Description of the software setup: We will use the DMM to measure the resistance of the resistors that we will use in our circuits. We will also use the Function Generator to apply a sinusoidal input signal of specified frequency and pk-pk voltage (Vpp) We will also use the scope, where the output signal is plotted, in order to measure the pk-pk output voltage, maximum output voltage, and minimum output voltage. 3. Testing: Resistors Used: For one diode clipping circuit (Figure A-1), apply a 2 V peak-to-peak, 1 KHz sinusoidal wave as input. For one diode clipping circuit (Figure A-1), apply a 3 V peak-to-peak, 1 KHz sinusoidal wave as input. Vpk-pk = 2.0V Vmax = 0.5V Vmin = -1.5V Vpk-pk = 1.473V Vmax = 0.473V Vmin = -1.0V For one Zener clipping circuit (Figure A-2), apply a 3 V peak-to-peak, 1 KHz sinusoidal wave as input. For one Zener clipping circuit (Figure A-2), apply a 10 V peak-to-peak, 1 KHz sinusoidal wave as input. Vpk-pk = 3.36V Vmax = 2.56V Vmin = -0.8V Vpk-pk = 2.192V Vmax = 1.4V Vmin = -0.792V For two diode clipping circuit (Figure A-3), apply a 2 V peak-to-peak, 1 KHz sinusoidal wave as input. For two Zener clipping circuit (Figure A-4), apply a 10 V peak-to-peak, 1 KHz sinusoidal wave as input. Vpk-pk = 953.8mV Vmax = 476.9mV Vmin = -476.9mV Vpk-pk = 6.693V Vmax = 3.347V Vmin = -3.347V For diode clipping circuit with DC source (Figure A-5), apply a 10 V peak-to-peak, 1 KHz sinusoidal wave as input. Vpk-pk = 8.211V Vmax = 3.21V Vmin = -5.0V