Question

Embedded System

Design an AC/DC power supply to meet a set of specifications given below:

Design Approach: The circuit configuration to be designed followed was discussed in class.A diode bridge circuit with an RC filter and a Zener diode will be in parallel with the output load are used.

Specifications: The output load current is 100 mA while the output voltage is to remain V out =12 V and produce an output with a ripple of not more than 3%. Use cut-in voltage for VD1,VD2, VD3, VD4 as 0.7 V.

Choices: An AC input voltage with an rms value of Vin = 110 V at 60 Hz is available. A Zener diode with a Zener voltage of Vzo= 12 V and a Zener resistance of r 2 that can operate over a current range of 10 <Iz< 100 mA is available.Also, chose your own transformer (you should specify the number if turns in the primary and secondary coils of the transformer).

a) Show the complete circuit of the AC/DC converter and label all components

b) Calculate all relevant parameters in the AC/DC power supply. Show all calculations of the relevant parameters (R, C, Np, Ns, Vs, Rin, VDI, VD2, VD3, VD4, Iz, IL, Vr, IDavg, IDpeak, PIV...)  Verified ### Question 26890  Embedded System

A Design a 1 mH toroidal inductor on a Carbonyl W core size T30.Determine the maximum wire size that could be used to realize a single layer winding.

### Question 26889  Embedded System

In ADS, select a chip inductor from the Coil Craft library with an inductance value of 80nH. Determine the maximum Q factor of the

### Question 26888  Embedded System

0. Using the inductor from Problem 8, determine the self resonant frequency of the inductor and comment on the maximum frequency in which the inductor may be used in a tuned circuit application.

### Question 26887  Embedded System

Design an air core inductor with an inductance value of 84 nH. Use a copper wire of 0.050 inch diameter wound on a core diameter or0.100 inch. Determine the number of turns required assuming a tight spaced winding.

### Question 26886  Embedded System

Model a chip resistor (size 0603) with a resistance of 50S in ADS.Consider an application in which 502 impedance must be maintained with +10%. Create a linear analysis and determine the maximum usable frequency of the chip resistor.

### Question 26885  Embedded System

) Calculate the inductance of a 5 inch length of copper flat ribbon conductor. The dimensions of the ribbon are 0.100 inches in width and 0.002 inches thick.

### Question 26884  Embedded System

Calculate the reactance of the wire from Problem 2 at 10 Hz, 10MHz, and 10 GHz. Create a Linear analysis in ADS and display the wire impedance vs. frequency

### Question 26883  Embedded System

Calculate the wavelength of an electromagnetic wave operating at a frequency of 428MHZ.

### Question 26685  Embedded System

. The MRF911D transistor with common-emitter S-Parameters for VCE=8V and IC=10 mA
! MRF911D.S2P
! MRF911
! VCE=5V; IC=20mA
# GHz S MA R 50
! S-PARAMETER DATA
\text { So for } 0.5 \mathrm{GHz}, \mathrm{S} 11=0.54 \angle-180, \mathrm{~S} 21=6.4 \angle 85, \mathrm{~S} 12=0.06 \angle 60 \text { , and } \mathrm{S} 22=0.19 \angle-70
Design 1GHZ narrowband amplifier. Use a matching circuit with L's and C's for input andoutput matching to 50 2. (33%)

### Question 26684  Embedded System

Impedance match a complex load of ZL = 25+ j15 Q to a 50 Q source impedance using a three element L-C matching pi-type network with one series inductor. Remember to perform conjugate matching for maximum power transfer. Determine the component values for operation at 300 MHz. Simulate using ADS and include results of Sl1 and S21plots up to 1 GHz. Place a marker at 500 MHz. (33 pts)

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