Imagine a situation where your laptop is almost out of charge. To charge up your laptop,...

 

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Imagine a situation where your laptop is almost out of charge. To charge up your laptop, you have to use the wall socket, which provides a sinusoidal AC output of (ID+100) V (rms) and 50 Hz, but your laptop needs to receive a DC voltage of (ID ÷ 5) +15 V to be charged. However, the connection from the wall socket can be a bit unstable as sometimes it spikes to a much higher than the rated value. To address the above issue, illustrate a diode-based circuit that can be placed between the wall socket and your laptop to charge your laptop successfully and safely. Design Criteria: 1) The regular diodes (choose between Ge, Si, GaAs), zener diode, and resistors can be used to construct the circuit. 2) The PIV of the diode must exceed the peak value of the AC input. 3) An overcharge protection must be implemented to keep your laptop from being damaged from spikes in the voltage. Based on this criterion, demonstrate the following: i) Identify the name of the circuit and illustrate the designed circuit with appropriate connections and adequate labeling. Also, Explain the operation of the designed circuit. [5] ii) Show the appropriate label of the input and output voltage wave shapes of the designed circuit. [5] Imagine a situation where your laptop is almost out of charge. To charge up your laptop, you have to use the wall socket, which provides a sinusoidal AC output of (ID+100) V (rms) and 50 Hz, but your laptop needs to receive a DC voltage of (ID ÷ 5) +15 V to be charged. However, the connection from the wall socket can be a bit unstable as sometimes it spikes to a much higher than the rated value. To address the above issue, illustrate a diode-based circuit that can be placed between the wall socket and your laptop to charge your laptop successfully and safely. Design Criteria: 1) The regular diodes (choose between Ge, Si, GaAs), zener diode, and resistors can be used to construct the circuit. 2) The PIV of the diode must exceed the peak value of the AC input. 3) An overcharge protection must be implemented to keep your laptop from being damaged from spikes in the voltage. Based on this criterion, demonstrate the following: i) Identify the name of the circuit and illustrate the designed circuit with appropriate connections and adequate labeling. Also, Explain the operation of the designed circuit. [5] ii) Show the appropriate label of the input and output voltage wave shapes of the designed circuit. [5]

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