Questions tagged [transfer]

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Which passive filter corresponds to this transfer function?

We've have been asked to find a passive circuit for the following function: With these coefficient values: Then, we've converted it to Laplace domain, so we have: Next, we should look for a filter ...
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1answer
44 views

Digital regulator for DCM Boost - How does it relate to duty cycle?

I really hope someone can help me here, I'm tearing my hair out trying to bridge the gap between control theory and electronics. My aim is to control a discontinuous conduction mode boost converter ...
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1answer
51 views

How can the maximum average power transfer be negative in a power delivery circuit?

It is possible that the Thevenin resistance \$R_{Th}\$ of a circuit is negative. This occurs in non-linear circuits. Likewise, in AC circuits, the real part of \$Z_{Th}\$ can be negative. For AC ...
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2answers
82 views

Why can't we operate at high frequencies (>0.5GHz) when having a resonant inductive coupling circuit?

I am currently trying to figure out if a high frequency (GHz) resonant inductive coupling circuit would be feasible and efficient when wirelessly transferring power. Through many research papers, ...
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2answers
107 views

Transfer function of electrical circuit

I have a question about this circuit. How do i get transfer function of a circuit with a diode? The current through diode is Id = e^(Ud/5) -1
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1answer
56 views

transfer function discrete

If f[n] is the input and g[n] is the output, how can I determine the transfer function of the diagram?
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40 views

Gain & Phase of a transfer function

can anyone help me calculate the gain and phase angle of the following transfer function for a low pass filter at a frequency of 130 rad s^-1: G=1/(1+jw/260)
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2answers
44 views

How to derive the transfer function for this Texas Instruments Application note narrowband pass filter

I've been trying to derive the transfer function for this filter but I'm absolutely stumped, and none of the functions I've come up with seem to reflect its actual response. Thanks! (It is taken from ...
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89 views

How do I convert poles and zeros of a transfer function into a circuit / required circuit components?

I have been given a bode plot of a low pass filter, and tasked with essentially reversing the effects by using a high pass filter. I have solved for the transfer function which is the first equation, ...
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1answer
90 views

How would you go about getting the small signal transfer function for this inverting circuit?

I am trying to get the small signal transfer function for a circuit that looks like this: It is an inverting amplifier connected to an output branch and a branch with a capacitor in series with an ...
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1answer
144 views

Transfer charge from a battery to another battery storage

I am conducting a feasibility study and one of the features of our innovation is that the "charge" that has been stored in our "Li-Po battery" can be transfer to another "battery storage" I would ...
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1answer
43 views

Automatic transfer switch or some such solution

I have only rudimentary knowledge of electronics. I live in South Africa, where we are now experiencing rolling blackouts. (Euphemistically called "Load Shedding" here.) During the day it's just a ...
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1answer
609 views

Constructing bode plot from experimental data and constructing a transfer function

I've been trying for a few days to convert an experimentally obtained (frequency against magnitude and frequency against phase) graphs to a bode plot and then construct a transfer function from the ...
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2answers
556 views

Obtain a Transfer Function from Bode Plot shown

I want to obtain a Transfer Function from the Bode Plots I already got the corner frequencies (approximates) and all the terms for my T.F. Then when I try to check my results in MATLAB my plot drops ...
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0answers
135 views

Sending data from Simulink Matlab to development board F28379D

I'm fairly new to Simulink programming so bear with me. My project is to measure some parameters with the ADC of the board and send them over serial (SCI_A) to a Simulink file I'm running on my PC ...
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1answer
254 views

Parallel RLC tank transfer function

I have seen the expression for the transfer function of an RLC tank given as the following. $$H(j\omega) = \frac{H_o}{1+j2Q\frac{\omega-\omega_o}{\omega_o}}$$ I am somewhat able to get this result, ...
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1answer
252 views

Bode plot of circuit with unknown values

I have the two following circuits with unknown values for R1, L and C, R2 is 1Kohm. I have attempted to find the transfer functions for these circuits and ultimately want to produce two bode plots ...
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2answers
124 views

Transfer Function of Op Amp Circuit

How can I obtain the transfer function graph of this circuit, assuming the zener diodes voltage are 4.3V and silicon diodes 0.7V.
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1answer
221 views

Implication of s -> infinity in a transfer function

For a strictly proper transfer function with no poles/zeros at infinity, I understand that it gives G(inf) = 0. What does it for a proper TF?
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1answer
99 views

Wireless power transfer [closed]

In wireless power transfer using electromagnetic field or resonance method,does the devices which are charged at the receiver end needs to be fitted with secondary coil?please explain?
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1answer
182 views

Spartan 6 and flash memory data transferring

I have an spartan 6 board. I need a flash memory with USB interface(like transcend, Silicon power,... ) to save some data to my board user. I haven't any idea about transfer speed. I need about 13 ...
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1answer
943 views

Transfer function of RLC circuit

I'm trying to find the transfer function but I'm a little bit confused about how to solve this. I can't solve for the two Ls in parallel How I can know what type of filter is this? I think it's a ...
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2answers
164 views

A situation regarding AVR and bad power grid voltage [closed]

I have a question regarding the following situation: Some poultry farm has taken some serious losses when their diesel generator died, only being able to provide backup for 45 minutes and killing ...
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1answer
72 views

Transfer power through wooden table

I have a set of battery powered candle lamps on a dining table, in a display cage. I converted the candles to run through a DC transfers and battery eliminator (due to the amount of AAA batteries we ...
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2answers
1k views

Transfer function of three cascaded RC filters?

I am looking for the transfer function of three cascaded RC filters: I have found the solution for two RC cascades (components differently labeled): I need an analytical expression like this one for ...
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0answers
114 views

Transfer function and gain at Fo in unusual op amp bandpass filter

The circuit diagram looks like this: simulate this circuit – Schematic created using CircuitLab It is simplified equalizer diagram. How to find the gain at w0 in symbolic form Where: $$...
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0answers
219 views

2nd Order transfer function to difference equations

I'm wondering if someone could check to see if my conversion of a standard second order transfer function to a difference equation is correct, and maybe also help with doing a computer implementation. ...
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1answer
530 views

Simple maximum power transfer question

I am asked to determine what the unknown component (Zs) is. I know that the maximum power theorem states (after derivation) that the $$P_{\text{load}}=\frac{V_{\text{th}^2}}{4R_{\text{th}}}$$ I ...
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2answers
560 views

Positive feedback with constant transfer functions

If I have a control loop with positive feedback, the closed loop transfer function expression is: $$\frac{Y(s)}{X(s)} = \frac{P(s)}{1-P(s)H(s)} $$ where \$P(s)\$ is the direct loop transfer function ...
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1answer
71 views

Is it possible to induce few volts IMPULS over 10 m distance?

I'm currently learning about electromagnetism at college, so this question is on mine mind for a few weeks. If we have on one side: 9 V battery, DC-DC converter to few kilovolts, capacitor, button, ...
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2answers
5k views

Can I use an AC motor to generate electricity which is mounted to a bicycle by a belt or I need it to be a DC motor?

I am trying to build a generator connected to a heater (250 Watts = 0.335HP). The energy goes to the motor from a bicycle. So the question is: should I use an AC motor or a DC one?
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1answer
143 views

Step voltage down via voltage divider, then grab original voltage output

I have a pressure sensor that takes 5v and outputs a voltage based on pressure, however the input that I read cannot exceed 1.8V due to limitations of the board that I am using. Thus I was wondering ...
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1answer
50 views

transfer function confusion

It has been said that Vout = Va/2 I'm not sure why this would be. Could someone please tell me why?
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1answer
213 views

Impedances to simplify RC circuit?

Suppose I am trying to solve the following circuit, where \$V_i\$ is the potential seen from the top branch to the bottom branch (which is 'grounded') and \$V_o\$ is the potential across \$C_2\$: If ...
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1answer
89 views

Cannot figure out resonance of an LRC circuit

this is my first time here, nice to meet you all. In one of my classes we are studying the resonance of an LRC Circuit where the C branch is in parallel with an RL branch. This circuit is driven by ...
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3answers
407 views

SPI between MCUs

As a newcomer to PIC programming, I am looking for some thoughts on how to implement SPI between a master and slave MCU the most efficient way. The purpose of this system is to provide an extremely ...
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2answers
67 views

Transfer function high order filter

Hi I have tried to extract the transfer function of the filter above, as you see it a high order filter. I have combined the c1 in parallel with R & C2 then make a voltage divider in order to ...
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2answers
447 views

Identify DC motor parameters using Least Squares Estimator

I'm not new to the concept of Least Squares, however, I find it difficult to figure out how to make it identify the transfer function for my motor. I will have my input voltage and an optical encoder ...
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1answer
253 views

Explanation of how to create circuit from transfer function

So I'm in this lab course that must be taken concurrently with the main upper div circuits class, but we were assigned a lab that our professor did not explain and that the lab manual does not explain....
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2answers
1k views

Wireless power transmission circuit component functions description

I came across this circuit diagram above and I want to implement it but I really need an explanation on the function of the components used in the circuit diagram especially RFC and the diodes (D1 and ...
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1answer
3k views

STM32: Saving 50Mbit/s data in sdram or sd card

Could STM32f429 save image data to sdram or sd card? Camera module outputs its data at a data rate of 50Mbit/s via 8 parallel ports. What I want to do is to save this data into the SDRAM or SD card as ...
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2answers
128 views

Why am I getting an error in my transfer function?

I'm trying to solve part b here, and my transfer function is coming out as -1.25s/(s^2 + 2.05s + 1 instead of the given -1.25s/(s^2 + 1.6s + 1). Since there were no initial conditions, I just ...
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2answers
941 views

How to transfer electrical power from stationary to rotational part.that can be used for POV display?

I have been researching how to transfer electrical power from stationary to rotational part. Some of them showed the means by using slip spring rings like in this website http://www.luberth.com/...
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3answers
205 views

Why interfaces and buses gets faster with every version if they are physically the same?

An interface or computer expansion bus gets faster with every version eg. PCI express 1.0 is 4GB/sm, PCI express 2.0 is 8GB/s, PCI express 3.0 is 16GB/s. I understand that things like microprocessors ...
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4answers
80k views

Baud rate calculation [closed]

I have an exam tomorrow and I'm confused on the following question, that may be asked in the exam: One byte data with parity bit by using asynchronous serial transmission with two stop bits. For 2K-...
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1answer
254 views

Calculate the transfer function [duplicate]

I have a question about this circuit.What is the transfer function for this circuit?
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1answer
939 views

Transferring arbitrary data via Bluetooth Smart (BLE) with nRF51

I was wondering if it was possible to send arbitrary packets of data over a Bluetooth Smart (Low Energy, 4.0) link from a nRF51 (Nordic Semi, BLE compliant SoC) to a phone? Also if you don't know the ...
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3answers
4k views

Low Voltage DC Automatic Transfer Switch

I am new to circuits and have a very basic knowledge, and am currently interested in building a simple circuit that would take 2 DC inputs each of 12V 1.5A and output 1 x 12V 1.5A input even if 1 of ...
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2answers
299 views

Wireless transmission of energy through a layer of non-conductive material

Is it possible to effectively transmit energy by electromagnetical induction? I have a plate of nonconductive material (5-10 mm) and I would like to transfer electrical energy from circuit on one side ...
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1answer
913 views

spidev_test.c analysis [closed]

I'm trying to connect a Raspberry Pi with a PIC32 through SPI. For RPi I'm using the spidev_test.c code (I'm modifying it to suit my needs) but... because I'm a novice in programming hardware, I'm ...