# Electronics Engineering

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Solution Library **

## Electronics Engineering

#### A Simple Design with Op Amps with Technical Report

Question Simple Design with Op Amps A simple design and build task using op amps. Write a short, properly structured technical report. Summary: This question belongs to electronic systems and discusses about a simple design and build task using op amps. Total word count: 330 and images ... Read More

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#### Digital to Analogue Converter Design with Technical Report

Question Digital to Analogue Converter A simple design exercise, in which you construct a 4-bit DAC. Write a short, properly structured technical report. Summary: This question belongs to electronic systems and discusses about a simple design exercise, in which to construct a 4-bit DAC. Total wo ... Read More

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#### Features of a Microcontroller in the ARM mbed

Question Programmable Electronic Systems A study of the features of a microcontroller, in this case the ARM mbed. Write a short, properly structured technical report. Summary: This question belongs to electronic systems and discusses about features of a microcontroller the ARM mbed. Total word c ... Read More

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#### Designing Logic Circuits in Field Programmable Gate Arrays

Question Using FPGAs to Implement Logic Circuits An introduction to designing logic circuits in FPGAs (Field Programmable Gate Arrays). Write a short, properly structured technical report. Summary: This question belongs to electronic systems and discusses about designing logic circuits in FPGAs ( ... Read More

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#### Expression for Cascaded Gain of a Circuit

Question Transistor parameters to use for this homework set. Cascaded Gain Problem Derive an expression for the cascaded gain of the circuit below. If all the transistors are designed to have gm=2 mA/V and ro=10 kΩ, calculate the value of the gain. Let R1=2 kΩ, R2=0.5 k&Omega ... Read More

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#### Maximum Value of Rload That Keeps Transistors in Saturation Region

Question Current Mirror Problem Find the maximum value for Rload which keeps all transistors in saturation region. Assume |Vt|=0.5 V and Veff=0.2 V for all transistors, with the gm and ro values as marked. λ = 0.1 V Calculate the value of Vout for this value of Rload. Summary This ... Read More

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#### Differential Mode Gain of a Circuit

Question Differential Amplifier Problem. Body effect can be neglected, but channel-length modulation should be included. Assume the current mirror is designed for a 1:1 mirroring ratio. Calculate the differential-mode gain of the circuit. Calculate the common-mode gain of the circuit. Calcula ... Read More

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#### Sensors in the Control Systems Applications

Question There are so many varieties of the sensors in the control systems applications. Choose two sensors and do your own research. Your research needs to include: 1. sketch (or drawing) for both sensors 2. a brief description of their construction and function for both sensors 3. basic ch ... Read More

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#### Determination of Open Loop Controller Output

Question The following input signal was applied to an open loop (PI) controller: A gain controller of the constant is 1, an integral setting (integral time constant) is 2 minutes. The nominal controller output is 50%. The set point is 50%. Determine the output of the controller Sketch ... Read More

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#### Sketch the Output of PD Controller

Question The following signal occurs at the input of an open loop PD controller: Sketch the general shapes (no numeral values) of the following outputs: P controller D controller PD controller (combined) Summary This question belongs to control systems and discusses open loop PD c ... Read More

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#### Determination of Transfer Function, Proportional Gain Constant and Integral Time Constant

Question For the following circuit with the operational amplifiers: Use the impedance approach to find an expression for a transfer function: E0(S) / Ei(S) Determine the transfer function when: R1 = R2 = R3 = 100kâ„¦ and R4 = 200kâ„¦, C = 20µF. Determine proportional gain ... Read More

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#### Determination of Proportional Band, Integral time constant and Controller bias

Question An analogue controller uses the following relationships: Where: e(t) is the error signal (a function of time), v is a controller output in %. All time units are in minutes. Find: Proportional Band (in %) Integral time constant (Ti) Derivative time constant (TD) Controller bias (i ... Read More

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