answer fastly please 57. Discuss the concept of metastability in digital circuits.

2) Design a Regulated DC Power supply circuit in multisim of 5V for charging a mobilephone? Note: use bridge rectifier, ac voltage source 120 Vrms or 230 Vrms for the design and appropriate capacitors and voltage regulators to get output exactly at 5V.

AC VMAX VRMS Ov DC VoCEO Rectified Output Waveform V MAX =D 0.318V MAX =0.45V RMS d.c. calculate the (a) average dc output voltage and (b) RMS output voltage using the equation for converting the peak output of a half-wave rectifier to direct current.

A 20-bit dual-ramp converter is to have an integration time T1 = 0.2 s. How rapidly must the unknown and reference voltage switches change stateif this timing uncertainty is to be equivalent to less than 0.1 LSB?

A. A voltage regulator circuit provides a constant voltage of (6 V) across a load resistance of (2 k2) using (12v) source voltage. Assume the maximum and the minimum current required for the Zener operation is (5 mA and 15 mA) respectively. 1. Design and draw the schematic diagram of the circuit. 2. What is the maximum values of the source voltage? 3. At maximum source voltage, what is the minimum load resistance to maintain the circuit operates normally?

Discuss the importance of integrated circuits (ICs) in the design and development of microchips. How do ICs enhance the performance and functionality of microchips?

Explain the concept of mixed-signal microchips and their importance in interfacing between analog and digital components in electronic systems.

determine the voltage of load regulation for the circuit.

Discuss in detail about the evolution of electrical/ non-electrical Communication methods and technologies Note: Please do not handwriting

2 Q.3) The input voltage to a Full-wave rectifier employing a center - tapped step-down transformer and two silicon diodes is 220V rms, and the transformer has turns ratio (n =0.125 ). Draw the rectifier circuit diagram when it is connected to a (1002) load and find 1- the average value of the voltage across the load