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8.7 The Reverse function
Finally, we have the reverse function. It's a kind of soft sync where by a 0 V ->
+5 V transition at jack (13) the triangle direction will be reversed as shown in
Fig. 8.
+4 V
0 V
-4 V
+5 V
0 V
8.8 Little maths
By corresponding weighting and following addition or subtraction, resp. of the
sine and cosine outputs of one oscillator, any phase angle between 0° and
360° can be achieved, namely like this:
Thereby ω (Omega) is the circular frequency of the LFO and t is the time.
sin(ωt) stands for the sine output and cos(ωt) for the cosine output. Let ϕ (Phi)
be the wished phase shift relative to the sine output. cosϕ and sinϕ are now
the weightings (multipliers) of the corresponding outputs sine and cosine.
Triangle
output
Reverse
transition
input
Fig. 8 Reverse function
CS-8 Series DLFO Rev1.3, March 2021
-22-
time
time
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