The square tag has no usage guidance.
1
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2answers
37 views
Square wave filtering with d-flip flop
I have a square wave (1st line), I want to skip every odd impulse, and output every even one without change, as shown in the second line.
Is this different from frequency division? What is the ...
0
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2answers
70 views
Anyway to avoid the startup delay on square wave generator (e.g. 555 astable) circuit?
In the classic 555 astable circuit the external capacitor charges to 2/3 of the Vcc (through R1 and R2) and then is discharged to 1/3 of Vcc (through R2) and then it continues to oscillate between 1/3 ...
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3answers
122 views
Peak and RMS voltage for a sine wave
I only need help with part C). What I've done for part B) is square the wave, which makes Vpeak->V^2peak and the waveform in the negative region(under the period axis) become positive AND ...
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3answers
117 views
Square wave at line frequency. How does it work?
I found the following circuit next to a switching power supply in an electrophysiology amplifier (AXOPATCH 200A, an instrument for a technique called "patch clamp").
References to power outlet:
...
1
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6answers
553 views
What is the best way to get a sine wave from a square wave?
I have square waves of different frequencies (1KHz to 20KHz), and I need to convert them to a sine wave of the corresponding fundamental frequency.
A RC ladder Low-pass filter was the first thing ...
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0answers
37 views
Relation between frequency and inductor current
I have a question regarding frequency and inductance. What is the relation between frequency of an applied voltage that is square wave, over an inductor, and the average current that would flow ...
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4answers
91 views
Variable Resistance
simulate this circuit – Schematic created using CircuitLab
This is a pulse generator, outputting square pulses with about 8% duty cycle. Tuning R2 down to 120k will result in the same ...
2
votes
2answers
152 views
Bipolar Square Wave Generator
The design requirement is to generate a +/-12V square wave from a 0-3.3V square wave at 1kHz.
Here is what I came up with:
PILOT_CTL is the 0-3.3V square wave and the end of R6 should be the ...
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2answers
107 views
creating a bcd squarer using verilog
Basically, I am using a lookup table to output in bcd the square of a single digit bcd.
The problem that I have is that it is not outputting the correct answer.
For example: the result I get for the ...
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votes
1answer
102 views
Fourier transform of a rectangular pulse
I'm interested in knowing:
1. Why the frequency content has a larger magnitude at low frequencies
2. Why the magnitude is zero at frequencies which are composed of multiples of the rectangular ...
1
vote
1answer
73 views
Crosstalk Question
Could somebody explain me how could I predict the crosstalk between tracks.From what I know about this are two types of crosstalk: inductive and capacitive.Inductive from what I read is the worst.For ...
1
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1answer
80 views
Convert PWM to 3-level voltage
I want to convert a generated PWM by a microcontroller to a 3-level voltage.
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the maximum output voltage range is between -5 to 5 or -10 to 10 volts. Another point that may well be considered is ...
2
votes
1answer
261 views
Square generator 1KHz to 1MHz with 1KHz precision
I would like to make a square wave generator which will output a signal with amplitude X voltages and frequency between 1KHz to 1MHz, with the precision of 1KHz (for example: 785kHz, 926kHz, 999kHz, ...
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2answers
329 views
How do you convert a changing input (square wave) into a single high signal?
I am designing a circuit which will output a square waveform for a specific duration of time (t) but I need to be able to read the square waveform using a processor so would like to turn the changing ...
0
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2answers
138 views
+5 to 0v square wave from a 12vdc supply
I need to build a simple 0 to +5v square wave from a 13vdc (automobile) supply. The frequency of the output needs to be based on a 1vac input signal. I believe it can be done with a handful of ...
2
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5answers
8k views
Sine wave to square wave - Schmitt trigger
I need to transform a bipolar sine wave (varies from -5 V to 5 V, 1 kHz) to a square wave for further digital processing (0 to 3.3 V), as in this image:
The important thing is ...
