Questions tagged [waveform]
The shape of a value (usually voltage) when graphed over time.
401 questions
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Why would the RCO be 9 on a binary counter? 74HC161
I am currently doing a question in a textbook and am supposed to be creating the WF’s for a 74HC161 and its Q outputs as well as the RCO. The RCO is going high at 9 which is also the LOAD, but ...
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Clipping waveform before the full bridge rectifier: What could be the reason?
I have a small audio mixing console which is supplied by ±19 V AC from an external transformer. The transformer started making a buzz sound, so I opened it up (because it was also much easier to start ...
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Relaxation oscillator giving distorted square wave
The relaxation oscillator I built using two TL071CP op amps gives a distorted square wave for frequencies above 10Hz. For frequencies up to 10 Hz the square wave is solid after which the top peaks ...
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How do I achieve my required amplification in this circuit?
My circuit is a sensing device. The input is a Vs= 50mV r.m.s (70mV peak 1000Hz supply), The required voltage amplification is given by V0=( 1+ Cs/C0)*Vs. but my output is not amplified
The yellow ...
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Trapezoidal wave with controlled rise/fall time
I am trying to design a small trapezoidal wave generator.
I need to control rise/fall time in range of ~500ns to ~20us. Amplitude around 1-2V (not critical).
Slopes need to be linear, so I tried to ...
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Weird clipping behavior in hybrid tube/solid-state preamp buffer stage (NE5532)
I'm designing a hybrid audio preamp circuit that combines a dual-triode vacuum tube (12AU7A) gain stage with a solid-state op-amp (NE5532) stage. The idea is to have a blend control (a 100k ...
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When zoomed in, why does a triangular wave form actually consist of up-down fluctuations?
I currently have an Arduino Nano Every connected to an Analog Discover 2 oscilloscope (1+ channel to pin 5 (one of the PWM pins) and 1- channel to GND). I'm trying to end up with a triangular wave ...
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Dual Active Bridge SPS and DPS Current Vertices Equations
I am trying to understand how current vertices for SPS and DPS modulation techniques can be calculated.
For SPS current vertices are il0 and il1 are given but I do not understand what the initial ...
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How does this circuit transform the output of the Hall IC?
I found this circuit schematic in the workshop manual of a car, and can't wrap my head around what this circuit does with the Hall IC output. My original guess is it transforms the signal into a ...
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20 Vrms 60 Hz Test Signal
I'm looking to generate a 20 Vrms 60 Hz test signal for the CMRR test of IEC 60601-2-27.
I haven't been able to identify a waveform generator beefy enough to output 20 Vrms. Would there be ...
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Generating triangle wave oscillator at variable frequencies
I would like to build an array of 8 triangle waves between 50Hz to 4000Hz. The frequency of each triangle wave should be tuned by a trim potentiometer.
power supply should be a +12V wall wart supply.
...
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sine wave variable frequency oscillator
I found this schematics from a youtube channel (The Audio Phool) that shows how to make sine wave oscillator using one opamp. (I'm looking at the right hand circuit) :
https://drive.google.com/file/d/...
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Basic Inductor Simulation on LTspice
I am simulating a basic inductor circuit 120V AC of 60Hz Voltage source with 2.65H inductor it has default of 1mOhms of series resistance.
reactance should be (2 pie F L) = 999 Ohms or 1K
the current ...
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First Verilog code for I2C for university project, but it seems wrong
I somehow managed to write the Verilog code for I2C. I know its not the perfect code, but it seems to work. My major doubts are:
Is the waveform correct?
During ACK_BIT, is the transfer of SDA ...
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SSD1306 logic analyzer results
I am sending the following signal from an FPGA to the SSD1306 via an I2C interface:
START, 0x78, ACK, 0x00, ACK, 0x3F, ACK, STOP.
The full bus on sigrok looks like ...
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