Whats it called when a waveform starts BELOW the zero crossing point?
example: triangle waveform
starts from -6 goes up to +4
or starts -10 goes up to +2
Mostly DC offset Raises the Waveform up ABOVE the zero crossing point what makes the waveform go Below the zero crossing point? what would cause the circuit to do this?
Superimposed is taking a DC voltage and having AC waveforms riding on top
making the AC waveform go "Above the Zero crossing point
Is there anything else like a network or circuit that would make the AC waveform go 'Above" or "Below the zero crossing point?
DC offset in your cicuit is negetive.
if you use positive DC offset your wave increase as you say.
if DC offset = 0 then integral of your wave form for one period will be zerro. this means upper area with lower area of wave are equal.
in your example it will -5V, +5V.
if my reference is Zero voltage how do i start the Swing at -12 or -10 or -8
i want to start to the swing negative how do i do this?
If my op amps at +12 and ground and my transistors are +12 and ground how would my triangle or square waves get to start "Below" Zero voltage like -12 or
-10 or -8 and then it starts to swing but it starts on a Negative voltage and then swings from that point