Circuit Theory 2. Topics Impedance matching, Impedance transformation, Bandwidth and Noise. How you will use these topics Understanding the rangefinder circuits, Optimizing rangefinder performance, Understanding transducer models. Impedance matching. What is impedance matching?
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* (Admittance is the complex reciprocal of impedance)
(blue = real, olive = imaginary)
Find the load impedance that accepts the maximum deliverable power from a 5 [V] sinusoidal source Vg at 40 [kHz], having a source impedance due to an internal series resistance of 50 [Ohms] and inductance 500 [uH]. What components, values, and topology will implement this load?
Suppose you were given a sealed box 0.05[m] x 0.05[m] x 0.02[m], weighing 0.1[kg] with two electrical terminals. It is totally opaque, even to x-rays and ultrasound and cannot be disassembled for inspection. When open circuited, the voltage across the terminals is 1 [V]. When short circuited, the current between the terminals is 1 [A]. You are told this is either a Thevenin source or a Norton source. How would you determine which? You may make any measurements you like on the unit.