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 199 V (rms) and 50 Hz, but your laptop needs to receive a DC voltage of 33 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:
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.
ii) Show the appropriate label of the input and output voltage wave shapes of the designed circuit.
Answers
Answer:
the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.
measurement of the focusing characteristics of an eye or eyes.
140.714 V, Full-wave rectifier
Explanation:
Several processes including a device called a rectifier are involved in physically converting alternating current (AC) power to direct current (DC) power. Fortunately, calculating the mathematical conversion is straightforward.
In general, DC voltage is expressed as AC RMS voltage. The square root of the average (arithmetic mean) of the squares of all the values in the collection is referred to as RMS. The RMS of a typical sinusoidal AC waveform is equal to the RMS of one period of the wave overall time. This is achievable because we assume the wave is the same in each period.