[Lowfer] Epson Question

[Ed Phillips]

"Hi

the fundamental frequency component of a square wave
has an amplitude of:

Vsine_rms = Vsq_wave_peak_to_peak * square_root (2) / pi

which means 

Vsine_rms = Vsq_wave_peak_to_peak * 0.4502

or

Vsine_peak_to_peak = Vsq_wave_peak_peak * 1.2732

(Assuming 50/50 % square wave duty cycle)

Although it may appear surprising, the Vpp of the fundamental
frequency component is larger than the Vpp of the square wave itself
:-)"

	1.2732(39545) = 4/pi

Ed