![]() Which circuit is equivalent to circuit number 3? Enter the number of the equivalent circuit in the box provided: Each circuit is equivalent, in that it computes the same logic function, as another circuit in the figure. In the figure above there are four two-input two-output logic circuits. What is the Thevenin equivalent resistance (in Ohms) of the power source as seen by the load resistance? What is the power (in Watts) that is delivered to this best load resistance? What is this optimum load resistance (in Ohms)? You are to determine the load resistance, RL, for which the maximum power is transferred to the load. So a crude model of a complete system might be the circuit shown below. There is some leakage current that we can model with a parallel resistor, and there is a voltage drop in the interconnect that we can model with series resistances connecting to the load resistor. A more accurate model includes a diode (a nonlinear element we will see later). Given that they are only guaranteed to have resistances within 10% of the nominal value, what is the largest and smallest value that Vout may have?Ī simple model of a photovoltaic solar cell is a current source, with the current proportional to the amount of sunlight falling on it. Of course, the resistances you chose are just nominal. Come up with resistors R1 and R2 such that the division ratio Vout/Vin is within 10% of the requirement. Assume first that the resistors have their nominal resistance. An additional requirement is that the Thevenin resistance as seen from the output terminals is between 10kΩ and 30kΩ. We are given an input voltage Vin=30.0V, and we need to provide an open-circuit output voltage of Vout≈10.5V. In this problem we need to choose 10% resistors to make a voltage divider that meets a given specification. The “tolerance” means that if you buy a 10% 390Ω resistor you can be sure that its resistance is between 351Ω and 429Ω. Thus, you can buy 10% resistors with a nominal resistance of 330Ω or 33kΩ, but not 350Ω. I have other solution to solve the problem.
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