Questions tagged [signal-generator]

A signal generator is an electronic device that generates repeating or non-repeating electronic signals in either the analog or the digital domain.

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79 views

Bio-impedance circuit inputs

Recently, I wanted to build a replica of a bio-impedance circuit that I found in one of the NIH.gov papers. As obvious, bio-impedance circuits are usually used to measure body composition. They are ...
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1answer
38 views

TimerBlox LTC6992 PWM variable clock generator at 2.3MHz… out of tolerance or used incorrectly?

The TimerBlox LTC6992 (https://www.analog.com/media/en/technical-documentation/data-sheets/LTC6992-1-6992-2-6992-3-6992-4.pdf) is a PWM chip specified to have a master output frequency maximum of 1MHz,...
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69 views

Device RF input calibration setup

A device requires RF input calibration. The input signal specification is: CW, 60MHz, 0.0 dBm. The user manual recommends setup 1 (fig below). Provided that the Signal Generator is capable of ...
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1answer
45 views

JDS6600 signal generator - broken or normal?

I recently treated myself to a JDS6600-60M signal generator. It's a (very) cheap one but that's because electronics is just a hobby and not something I make money with or anything. The other day I ...
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1answer
103 views

Negative terminal of a sine generator

simulate this circuit – Schematic created using CircuitLab I had this problem where the anode of a diode was connected to the negative terminal of a sine generator. I wondered how it functions ...
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1answer
55 views

How to use same low pass filter for square and sine wave

I'm trying to desing simple DDS waveform generator using DDS IC, but I'm a bit lost about designing output filter for it. My requirements are 1 Hz - 25 MHz sine, square and triangle/ramp wave. Using ...
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1answer
62 views

Decoupling channels on an oscilloscope?

I have 2 x AD9833s programmable waveform generators running off the same SPI bus. Generator A is on channel 1 (yellow in the picture below) and is a sine wave set at 1 kHz. Generator B is on channel ...
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1answer
53 views

Obtaining frequency of 550 Hz from Simple Triangle and Square Waveform Generator Circuit

First time asking a question so sorry if I miss some things. I'll try to be thorough and straightforward. I'm trying to design a square wave from a triangle wave-square wave generator circuit. The ...
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49 views

What is the practical difference in this DC offset remover?

I am working on audio signal oscillators. My oscillator generates 0V to +5V triangle wave. Then I'm removing DC bias to get -5V to +5V signal. I have found two examples on how to do this: What is the ...
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3answers
1k views

One transistor square wave amplifier: why doesn't it work?

I want to amplify a square wave coming from my signal generator using a single transistor and a 100V DC power supply. This is the circuit I created: https://everycircuit.com/circuit/4628349765550080 (...
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4answers
149 views

Designing a high voltage AC signal generator

I'm trying to design a high voltage AC signal generator for some lab experiments. This schematic is as far as I've got and I wanted to sanity check the basic approach before I continue as I'm used to ...
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5answers
488 views

High Frequency Square Wave Generator

I want to generate square wave but there are some challenges. Rise time should be less than 2ns as well as fall time (for 0V to 5V). Duty cycle is not so important it should stay high like 40 ns. I am ...
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1answer
56 views

How does a “pulse dialer” (e.g. IN9151) internally work?

I'm wondering how a so called "pulse dialer" like the IN9151 (https://www.digchip.com/datasheets/parts/datasheet/237/IL9151-3N-pdf.php) internally works, meaning how it is achieved to ...
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48 views

What electrical attributes determine if signals from a signal generator can penetrate objects?

Lately, I've been reading about all kinds of signal generators (pulse generator, arbitrary function generators, arbitrary waveform generator, waveform generator, frequency sweep generator, PEMF signal ...
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70 views

Amplify square wave signal generator output to high voltage?

Let’s say I use a signal generator to create a square wave and then want to transform it into a high voltage of, say, 5 kV. How can that be done? Are there transistors that can handle that kind of ...
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3answers
275 views

Noise at peak of triangle wave

I'm building a signal generator for my electronics project, and to generate the triangle wave, we're required to use a relaxation oscillator (we can add other circuits around it to improve the quality,...
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1answer
240 views

Test transformer with signal generator and oscilliscope

I would like to see how well a sine wave would pass thru a transformer. (from primary side to secondary) Is it possible/practical to test small transformers which you might find in small low powered ...
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247 views

How to measure a signal generator with an oscilloscope probe?

I have a signal generator and an oscilloscope. When I connect a plain BNC cable between them, and I generate a square wave, I see the square wave on the oscilloscope with the correct voltage. ...
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222 views

Flat line on output of single supply sawtooth generator

I have built the following sawtooth generator using LM358 opamps: In simulation everything works fine, however in reality I get only flat line on output. Anyone got any idea what's going on?