I want to ask about a 30 Hz (decaying square wave) underdamped bipolar square wave.Also this is used for demagnetization. The photo of the output is shown as below. Could you help me to construct? Any recommendations?
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\$\begingroup\$ Is this an assignment? We help with those BUT not the same as for non assignment questions. || A decaying square wave would be unuseual. Damping usually implies a load removing energy from an oscillatory circuit and you'd usually expect a sinewave or similar. The shown waveform could come from eg an underdamped sine wave and a zero crossing detector and peak detector. THe relationship between input and output may be more complicated than expected. \$\endgroup\$– Russell McMahon ♦Aug 18, 2021 at 11:17
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\$\begingroup\$ THe term "underdamped square wave" is used in blood pressure monitoring but does not mean what you show here. \$\endgroup\$– Russell McMahon ♦Aug 18, 2021 at 11:20
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\$\begingroup\$ Once more :-) - you REALLY need to tell us the context and how that waveform was produced. \$\endgroup\$– Russell McMahon ♦Aug 18, 2021 at 11:21
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\$\begingroup\$ Why is the 2nd negative peak at -10 volts and not -9 volts? What's going on here? \$\endgroup\$– Andy akaAug 18, 2021 at 12:36
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\$\begingroup\$ If this circuit is underdamped sinusoid, how can I convert this circuit sinusoid to square wave? \$\endgroup\$– too6hortAug 18, 2021 at 12:59
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You could make this using a DAC with bipolar output, so you could make a breakout board using this IC.
Then you can program an Arduino to communicate with the DAC to tell it to output 12, then -12, then 10, then -10 and so on. That is the only solution I can immediately think of for making very square waves.
