1. Use LTspice to simulate the circuit in part A to see how well it matches your calculations. Use 5 VDC for your supply, a 1N4148 for the diode (it's a good equivalent to the 1N4001, or you can find and import the 1N4001 model if you wish), and the actual resistor value you calculated in A3. Set the duration of your simulation to be 250 ms, with no initial condition on the capacitor. After running the simulation, probe the positive side of the electrolytic capacitor to plot its voltage. Paste an image of your simulation result below. 2. Now change the source to a square wave using the Pulse supply: Your Vinitial = 0; the Von is 5 V; Tdelay, Trise, and Tfall can be 1 ns (1 nanosecond, which is even faster than you typically get in reality); and Ton is the duration, which in this case would be 250 ms; Tperiod is double the on time for 50% duty cycle; and you want to show several periods so you can set the number of cycles to 10 (or even 100, doesn't matter since time limits it anyway). Then run an appropriate transient simulation to show all the periods. Paste an image of your simulation result below. 3. How well does your simulation match your calculated values? 4. Now remove the diode from the circuit (i.e., move power supply wire to resistor). Run the same transient simulation. Paste an image of your simulation result below. 5. Compare your simulation results of circuit with diode (B2) and without diode (B4). Why do they differ? 12:41 Back Lab 1.docx 2. Now change the source to a square wave using the Pulse supply: Your Vinitial = 0; the Von is 5 V; Tdelay, Trise, and Tfall can be 1 ns (1 nanosecond, which is even faster than you typically get in reality); and Ton is the duration, which in this case would be 250 ms; Tperiod is double the on time for 50% duty cycle; and you want to show several periods so you can set the number of cycles to 10 (or even 100, doesn't matter since time limits it anyway). Then run an appropriate transient simulation to show all the periods. Paste an image of your simulation result below. 3. How well does your simulation match your calculated values? 4. Now remove the diode from the circuit (i.e., move power supply wire to resistor). Run the same transient simulation. Paste an image of your simulation result below. 5. Compare your simulation results of circuit with diode (B2) and without diode (B4). Why do they differ? 6. Now reduce the Ton duration to 1/5th of the original which would be 50 ms; Tperiod is double the on time for 50% duty cycle. Run the transient simulation for the same time scale. Paste an image of your simulation result below. 7. What is the effect of changing the frequency of the input square wave? 000 ooo 5 LO Dashboard Calendar To Do Notifications Inbox