In: Electrical Engineering
MULTISIM
1. With the knowledge you’ve gained in basic electronics, design
and simulate a
circuit that comprises of a transformer, diode, capacitor, voltage
regulator, zener
diode, transistors and any other vital components needed to make
the circuit work. A. Explain how the circuit you’ve built
works
B. Describe the function of each of the components in the circuit.
2. As a electronic engineer, design a circuit where the transistor
as a switch and
another where the transistor is for amplification.
A. Here is the circuit of 5V DC regulated power supply. The transformer steps down the AC voltage, Rectifier converts it into pulsating DC and 7805 is a 5V voltage regulator that gives regulated DC voltage at the output
B. Here is the circuit for the transistor as a switch. Given below is the circuit when the transistor was operating in the cut-off region. In this case, the LED is not glowing
and here is the case when the transistor is operating in the saturation region. In this case, LED is glowing
Given below is the circuit where the transistor is used as an amplifier. This circuit is popularity known as Class B push-pull amplifier
Here are the waveforms in Oscilloscope
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