Questions tagged [function-generator]
A function generator usually refers to a piece of test equipment that generates a variety of waveforms over a range of frequencies. A typical unit may generate sine, square and triangle waves at a frequency up to around 20MHz, they tend to be less often used at higher RF frequencies.
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Amplification needed to power Helmholtz coils
I'm having trouble generating magnetic flux between these coils that are hooked up to a function generator. An oscilloscope is also used to monitor the waveform.
The issue that I'm having is that I ...
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Understanding voltage terms
i am using a voltage divider circuit and i provide input using a function generator. For example I give a 1 Vpp square wave. Now, I measure the voltage across the resistors using multimeter and ...
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Match function generator output phase to line phase
I am new here so my apologies if I am missing pertinent details. I am trying to cancel a 60Hz EM field by sending a small 60Hz AC current through a loop of wire that I am generating with a function ...
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Generating Double pulse using Tektronics Function generator AFG31000
I have Tektronics AFG 31000 function genertor with built in double pulse test app. I want to generate two pulses for my double pulse test but this so simple task is becoming a mountain to climb for me....
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Understanding connection of floating function generator to oscilloscope
I'm working with a function generator that has a floating output. At one point, I looked at the signal on both the center conductor of the BNC connector and on the shield of the BNC connector relative ...
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Calibrating the R&S FPL 1003 Spectrum Analyzer
I am setting up an EMC test bench and I have a spectrum analyzer(SA): The Rohde and Schwarz FPL 1003 Spectrum Analyzer. I am trying to conduct some preliminary tests to ensure that the results seen on ...
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What is the simplest way to boost the output of a waveform generator to drive a piezo mesh?
I am trying to generate a ~40vpp sine waveform with a Rigol DG1022Z. Its maximum is 20Vpp.
I want to test the device at frequency ranges of a piezo device from 40kHz to up to 200kHz. This is to drive ...
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Impedance matching a function generator and a laser source
I am using a function generator to generate a sine input to a modulated laser. The function generator has output settings of 50 Ω and High-Z, while the laser for some reason has a 1 kΩ input impedance....
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Basic capacitor in circuit
I’m new with electronics. I really don’t know how to search up this circuit. This circuit will make the LED turn on when it has microphone input. Could someone explain or suggest what should I search ...
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Function generator cannot generate differential voltage?
I am using the AD620 as instrumentation amplifier to amplify the body's ECG signal. An ECG is a differential signal (measured with two electrodes) and I want a differential gain of \$G_d = 1000\$.
The ...
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UTG900E output specification
The datasheet of UTG900E Waveform generator says it can output up to 10 Vpp on a 50 ohm load, but in chapter 3.3.1 is stated the load can be set between 1 and 999 ohm.
Nowhere in the datasheet I see ...
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Adapter for a function generator output
I want to order this adapter, but I can't find it on the web. Can anyone please confirm the exact name of this adapter for a function generator having a channel output and terminals for a DC power ...
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Do 50 Ω signal generators have a series resistor or not?
I am wondering about something really simple and silly.
If functions generators have an internal series 50 Ω termination, then they would produce only half the set amplitude over a matched load.
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What is wrong with this function generator simulation?
I was trying to make a function generator using op amps, and I am supposed to get square waveform as output of the second stage and a triangular waveform as the output of the first waveform. But when ...
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Using RC lowpass filter at the MCP4802 DAC output (Arduino Nano waveform generator) [duplicate]
I have code on Arduino Nano that has predefined array of 4 waveforms (square, sawtooth, triangle, sine).
The array has, for each of the waveforms, 256 values where each value is 8 bit.
The speed, at ...
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Reducing the peak to peak voltage of a sine wave
I have a function generator, and I am outputting 100 mV peak to peak sine wave.
By making a circuit of resistances, I am trying to reduce the peak to peak voltage to 2 mV.
But I am getting noise in ...
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Attaching Lower Impedance Part to a Function Generator
If a speaker with a hypothetical 3 ohm impedance is attached a signal generator with an output impedance of 50 ohms, will the speaker draw too much current, and overload the signal generator?
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Generate an arbitrary wave (cos60t + cos1000t) with an arbitrary wave generator
I want to generate a wave with the help of an arbitrary generator.
$$v(t) = \cos 60t + \cos 1000t$$
My school lab has an AFG-2125-E4 arbitrary generator.
I have tried to use arbitrary wave to generate ...
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Mux 2:1 with NAND gate and function generator
I want to simulate the operation of a 2:1 mux using only NAND gates. I want to insert two square wave signals and obtain the corresponding result depending on whether the selection is 0 or 1.
With the ...
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What cable is this, and what is attached to the end? [closed]
I have a question regarding the cable in a red square, namely that green thing.
This is a video from YouTube and I am trying to recreate the same. I want to connect the same type of transducer to the ...
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Why is the scope showing half the value of the function generator?
This is a follow up on this question: Oscilloscope voltage not matching function generator
When the function generator is set to 50 Ω (Rint), it automatically assumes that the external load Rout (...
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Modulating a high-frequency signal to get rid of an undesired low-frequency component
So when I ask my function generator for 2 MHz, it gives me that with a 19 Hz oscillation. For my application this low-frequency signal is very problematic. I've tried high passing it which does close ...
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Change the duty cycle of pulses
I'm trying to raise the duty cycle of short pulses (about 10%) through the range up to ideally 80% using a potentiometer. I've seen variable pulse generator designs using 555s, but my trigger is ...
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Signal generator, DC offset, impedance into an open load - workarounds?
Video: MHS5200A Function Generator Review and Teardown
I have the signal generator referenced in this video. As the video says, its output impedance is specified into an open load.
It has a floating ...
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Electrolytic capacitor and AC
I'm doing an experiment to investigate the relationship between frequency and capacitance. The experimental setup is to connect an aluminum electrolytic capacitor to a function generator and use an ...
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Function generator with an operational amplifier
I am solving a function generator whose frequency of each output is 5kHz. My question is, how can I find the parameters of C3, R5 and R6 to get an output of the same frequency?
In addition to the ...
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How can I generate this waveform?
I am trying to generate this waveform:
basically a ramped square wave with a maximum frequency of 1KHz.
My first thought was to use the DAC pin of a microcontroller, but are there any ICs that can do ...
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What kind of latch would be best to continuously store and feed in a series of inputs?
So I've got an assignment where I've two buttons and LED screen. One button inputs a '1' and the other a '0', and when four inputs are detected the screen displays the number eg. If I typed 0011 it ...
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What is the best video/textual source for learning circuit designing? I want to create a high amplitude, function generator? [closed]
I am a self taught software programmer, I have an electrical engineering project where I have to design a function generator of high voltage/amplitude using 555 timer. The function generator that I ...
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Half-wave rectifier with filter and clipped input signal in oscilloscope
When building a half-wave rectifier with a capacitor filter for my electronics lab, there was significant clipping at the peaks of the input signal. When looking at the .csv file pulled from the ...
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LHT00SU1 logic analyzer clock generator
I was using a LHT00SU1 logic analyzer and according to this it should have the capability to produce a variable frequency signal (i assume through the CLK pin).
Using pulseview with fx2lafw firmware I ...
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AD9833 Function Generator - Poor square waveform
I have built a function generator using an AD9833 board, using the schematics found here. The circuit seems to work well, but the square waveform that it outputs isn't great and there is some ...
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Is lead color a safety issue?
BNC to alligator clip connectors were made for a function generator in our lab. Whoever made them decided that the ground connector wire should be red and the signal connector wire should be white.
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Higher voltages between protective earth ground (mains) and function generator than expected
I uploaded a video to YouTube specifically to help me explain my question. Please watch it if you can.
Otherwise, here is my text-based description:
I have an oscilloscope, function generator and ...
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Inject tone into computer
I'm using the circuit at the bottom of this post to generate a triangular wave, which I'd like to inject into a computer's microphone jack.
My computer has a single audio jack. When I plug a TRRS ...
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Inductor voltage not decaying to 0V by t=5 TC
In a new lab I have the following circuit:
The inductor will change from 200 mH -> 400/600/800 mH. I am starting with 800 mH.
The function generator is a square wave at:
50 Hz, 20 ms period, and ...
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Why do I get 0 volt output when I have a voltage divider with a square wave input?
I would like to state the problem I am dealing with which I cannot explain.
The set up I have is as follows:
2 x resistors 1 kΩ,
1 x breadboard,
Wires,
1 x Voltcraft DSO-6202FM oscilloscope which has ...
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RC circuit waveforms not lining up on oscilloscope (capacitor starting negative)
I have a lab for a circuits class and in it we are building an RC series circuit with a square wave input. I am using a function generator to produce a square wave at 50Hz, period = 20ms, Amp = 500mV,...
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How to measure the frequency response of a waveform generator?
I was looking at the data sheet of an arbitrary waveform generator and found a plot of the frequency response of the instrument, then wondered how it was measured. I know how to measure the frequency ...
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How to generate a complex sinusoidal signal on a function generator?
I can't relate some of the equations or mathematical expressions commonly seen on circuit analysis textbooks to the real world.
For instance, if I'm given an input signal mathematically expressed as \$...
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Tuning Op-Amp Integrator for Triangle Wave Generation
I'm trying to simulate an op-amp integrator that can generate a triangle wave from a square wave. Unfortunately, my waveform is anything but triangular; if anything, it's another square wave with a ...
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How to understand a complex diode-resistor function generator circuit?
I'm reverse-engineering a CRT anti-pincushion circuit and it uses a complex diode-resistor circuit to approximate the function X-k×X×Y², where X and Y are the deflection voltages. My question is if ...
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How to amplify a signal from a function generator from 5V to 35V?
I have a function generator that has an output voltage of 10Vpp. I need to use it to drive a voice-coil-actuator (VCA) that operates on 35V and 11.7A.
I was searching for a solution to amplify the ...
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How can I generate an exponential signal in simulation software?
In Multisim, I can generate a few signals using the function generator like sine wave, triangular wave, square wave.
Can I generate a signal like \$i(t)= 2e^{50t}\$ in Multisim software or any other ...
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Circuits that can generate a square wave current
I was searching around for circuits that could generate a square wave and I noticed that they all have only one output and can't generate a current. For example:
Now, measuring across the positive ...
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Modern components to change old Soviet ones to make ion generator
I am trying to make the same scheme to get an ion generator. I found this one on the Internet and have difficulties finding the components in Europe as I cannot find their names in English. Can ...
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Square wave from comparator drifts and the integrated square wave doesn't yield a triangle wave
I am trying to make a function generator.
The generator runs on 16kHz, the rails are +12/-12V for test purposes.
I basically obtain a sine wave with an oscillator, drive a comparator (LM311) with the ...
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From sine wave to square wave
I want to make a square wave generator with an LM311.
I have a variable sine wave source from 1Hz to 16kHz. The amplitude can vary between 0.5V to 11.4V.
I tried to use the comparator circuit below ...
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TL071 does not integrate my sine wave
I want to make a homemade function generator.
I used a Wien-bridge oscillator with a UA741 to produce the sine wave, amplify it with another UA741 because it has quite low amplitude, then integrate it ...
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Function Generator to Audio Amplifier
I am looking to control a Helmholtz coil with a function generator but I need a waveform amplifier to increase the current and voltage from the function generator. The coil has to be run using low-...
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