Bipolar waveforms - are not summed but are mixed with DC offset i guess
Dual waveforms- Are two seperate waveforms
AC waveforms- are alternating in polarity from positive to negative
In video electronics they use Bipolar waveforms
On the RED color channel they sum the RED color with the vertical sync, so when you look at the RED channel on the oscilloscope you will see a "bipolar waveform" it will be a red channel video waveform + the vertical sync riding ontop or DC offset to superimpose the vertical sync
They do the same with the BLUe color channel but they sum the hortizonal sync, so when you look at the Blue channel on the oscilloscope you will see a "bipolar waveform" its the blue channel video waveform + the hortizontal sync
Another Bipolar waveform example is
The sum/bipolar the RED color channel with the LEFT audio channel and the BLUE channel they sum/bipolar RIGHT audio channel
Bipolar waveforms VS summing waveforms are difference because Summing would take 2 different waveforms and merge them together into One.
Bipolar waveforms examples:
1.) analog video signal + digital vertical or horizontal sync waveforms on ONE channel or single ended channel
2.) Analog Video signals + audio left or right channels onto a single ended channel or ONE channel
THey use differential Op-amps in differential MODE to Input pin#1 will be the analog video signal RED and Input pin#2 will be the vertical sync signal
They use these Video driver op-amp chips that do this so you can mix video signals with digital vertical and horizontal sync signals
**DOn't ever SUMM or Bipolar audio with Digital signals this will create buzzing and noises**
Why is it a "bipolar" waveform and not a summed waveform#1::
is because on the oscilloscope display on ONE channel you can see 2 difference waveforms, you can see the RED channel + the vertical sync seperated by DC offset it seems, even when the oscillscope is on the AC coupled the bipolar signals are still riding/superimposed or seperated from one another
Why is it a "Bipolar" waveform and not a summed waveform#2::
is because the op-amp is in differential mode using the input pin positive (+) and input pin negative (-)
Bipolar waveform#1 example:
Video RED channel is on input pin (+)
Vertical sync is on input pin ( - )
Output is Bipolar = Video red channel with the Vertical sync
Bipolar waveform#2 example:
Video RED channel is on input pin ( + )
Audio LEFT channel is on input pin ( - )
Output is Bipolar = Video Red channel with the Audio Left channel
Bipolar waveform#3 example:
Video BLUE channel is on input pin ( + )
*Digital logic* , clocks signals , data lines , control lines on input pin (-)
Output is Bipolar= Video Blue channel with digital signals etc.
Summing would need summing resistors and its a single ended input and single ended output
I think with summing you can't SUM or mix analog signals with digital signals
I'm not sure with summing you can sum/mix video signals with digital signals
Dual waveforms- Are two seperate waveforms
AC waveforms- are alternating in polarity from positive to negative
In video electronics they use Bipolar waveforms
On the RED color channel they sum the RED color with the vertical sync, so when you look at the RED channel on the oscilloscope you will see a "bipolar waveform" it will be a red channel video waveform + the vertical sync riding ontop or DC offset to superimpose the vertical sync
They do the same with the BLUe color channel but they sum the hortizonal sync, so when you look at the Blue channel on the oscilloscope you will see a "bipolar waveform" its the blue channel video waveform + the hortizontal sync
Another Bipolar waveform example is
The sum/bipolar the RED color channel with the LEFT audio channel and the BLUE channel they sum/bipolar RIGHT audio channel
Bipolar waveforms VS summing waveforms are difference because Summing would take 2 different waveforms and merge them together into One.
Bipolar waveforms examples:
1.) analog video signal + digital vertical or horizontal sync waveforms on ONE channel or single ended channel
2.) Analog Video signals + audio left or right channels onto a single ended channel or ONE channel
THey use differential Op-amps in differential MODE to Input pin#1 will be the analog video signal RED and Input pin#2 will be the vertical sync signal
They use these Video driver op-amp chips that do this so you can mix video signals with digital vertical and horizontal sync signals
**DOn't ever SUMM or Bipolar audio with Digital signals this will create buzzing and noises**
Why is it a "bipolar" waveform and not a summed waveform#1::
is because on the oscilloscope display on ONE channel you can see 2 difference waveforms, you can see the RED channel + the vertical sync seperated by DC offset it seems, even when the oscillscope is on the AC coupled the bipolar signals are still riding/superimposed or seperated from one another
Why is it a "Bipolar" waveform and not a summed waveform#2::
is because the op-amp is in differential mode using the input pin positive (+) and input pin negative (-)
Bipolar waveform#1 example:
Video RED channel is on input pin (+)
Vertical sync is on input pin ( - )
Output is Bipolar = Video red channel with the Vertical sync
Bipolar waveform#2 example:
Video RED channel is on input pin ( + )
Audio LEFT channel is on input pin ( - )
Output is Bipolar = Video Red channel with the Audio Left channel
Bipolar waveform#3 example:
Video BLUE channel is on input pin ( + )
*Digital logic* , clocks signals , data lines , control lines on input pin (-)
Output is Bipolar= Video Blue channel with digital signals etc.
Summing would need summing resistors and its a single ended input and single ended output
I think with summing you can't SUM or mix analog signals with digital signals
I'm not sure with summing you can sum/mix video signals with digital signals