# Tagged Questions

Math or Mathematics is the abstract study of topics such as quantity (numbers), structure, space, and change.

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### How do I compute the average and RMS of a series of triangular pulses?

I'm trying to calculate the Average and RMS values of the current through a diode with the waveform image attached. I'm struggling to work out which equations to use. Any feedback would be appreciated....
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### Mathmatically analizing different voltages in a phase changing circuit

I am trying to understand a phase shift oscillator from a mathematical perspective, and to begin I simply took the phase-shifting part of the circuit and am now trying to analyze the voltages as a ...
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### Studying electronic filters

I'm studying this filter: And I want to know all the important points in this filter (the math way), can someone help me? What are the trivial points in this filter? My Work, transfer function: ...
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### FPGA Multiplication and Division

Background I am trying to estimate the speed of a quadrature encoder with the following equation v = Δx/Δt Δx is a 16 bit signed integer and Δt is a 16 bit ...
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### Park/Clarke Transform and Power

I'm looking to determine the electrical power input to a 3-phase BLDC motor, driven by TI's DRV8305 motor controller. I can't use the DC power flowing into the system because I'm trying to capture the ...
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### Performing FFT at low frequencies but high resolution?

To put this in context, I'm looking to achieve both high speed and high accuracy for measuring biosignals through the FFT. I'll describe a quick example to see if I understand this properly as well as ...
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### PID Control: Controller of the type $\dfrac{1}{s+k}$

In PID control an integrator action is represented by $\dfrac{1}{s}$ Does anyone know what would be the effect of using $\dfrac{1}{s+k}$ instead of $\dfrac{1}{s}$, where $k$ is a constant? ...
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### Accuracy calculation for SMD compass magnet-triangulation

I'm designing for an application where size is to be kept at a minimum (board space of a square inch or less; boards should be circular or square, not long in one axis, or they might break). I want to ...
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### converting watt values over time to kWh

This is probably an elementary question, but I wanted to be sure. I have a system that reads instantaneous watts values, and stores them as "events", with a power value and a time value. According ...
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### PV array project

I am working on a PV array on simulink and I just need help on a math question. On the article I'm basing the model on, the model voltage equation is Vm = VmT - (5- G/0.2) for the voltage to vary ...
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I read this PPT on page 146 we have this figure: as Better to have the same sum and carry delays (both contribute to critical path) in Carry save adder (CSA) and multiple operand addition. ...
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### SiC Schottky power diode MATLAB simulation issue

Hi Everyone (first time poster), I am modelling a 4H-SiC Schottky power diode in MATLAB and I have come into some issues with MATLAB when trying to make an I-V curve. I was reading this paper and I ...
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### SI derived units: Another name for the Volt [closed]

$V = \frac{Kg \cdot m^2}{s^2A}$ I know it's basic but I was having a hard time understanding the relationship between volts, ohms, watts, amps and ohms until I broke everything down into base ...
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### Fourier transform of $x(t) =t^2e^{-|t|}$

I have to find the Fourier transform of this function. (- sign exists BEFORE modulus). I thought of using this standard result. If I split this fourier transform into this will it be correct ...
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### How to properly describe a Math Equation in Verilog to be synthesizable?

I have not been able to find a book or information in internet, about the correct way to describe a Math Equation in Verilog. With the correct way I mean for example, how to analyze the equation and ...
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### Find dBm and watts of the attenuator?

The question says "A signal of 40 dBm is passed through the first attenuator. The first attenuator has a gain of 1. The second attenuator has 20 dB output. Find the dBm and watts This is what I tried ...
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### Half Adder and Two Function, A Contest Questions?

I ran into a 2013 contest question on computer-science filed. What is the following True about F and G function. (The output ...
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### Required math for setting up a laser diode

I'm new to electronics and come from a software background. Recently I got a laser diode that I would like to use with my arduino. The manufacturer says it is 5mW and draws 2.8-5.2V. I'd like to ...
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### adding two 64-bits number with m-bit carry ripple adder and multiplexer, a questions?

I ran into a question from computer architecture class. The professor says that for adding two 64-bit numbers A and B we use m-bit carry ripple adders and multiplexers such as following: and that ...
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### Understanding use of accelerometers to measure angular (rotational?) accelerataion

Imagine this: A rod is attached at one end to a rotating shaft. So, as the shaft rotates from 0 to 90 degrees back-and-forth (in the xy plane), so does the rod. My goal is to measure the instantaneous ...