ODP: what is a thru zero VCO??

[Roman Sowa]

According to my knowledge...
it is an oscillator, which can be driven in two directions.
Or in human language, imagine VCO controlled in linear FM
manner. when CV goes to 0V, frequency drops virtually to 0.
CV falls below 0 and frequency rises again, but output is reversed
by 180degrees.
In another way:
Take paper circle, make a big dot on the edge, and glue it to
motor shaft. Motor supply is your CV, vertical position of the dot
is your sinusoidal output of thru-zero VCO.

Roman

-----Oryginalna wiadomooeæ-----
Od: Paul Maddox [mailto:Paul.Maddox at unilever.com]
Wys³ano: 10 wrzeoenia 1999 10:35
Do: synthdiy
Temat: what is a thru zero VCO??


Dear all, 

   am I missing something here? what is meant by thru zero?
is it that the input voltage can go from say -10v to +10v
and the vco will produce an output, or does it invert the output
when fed with a -ve CV?

  Confused
  Paul,


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