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Electronics Schematics - M

Math Functions: Cosine Circuits

Circuit forms efficient cosine calculator: 10/25/2001 EDN - Design Ideas / The circuit in Figure 1 converts a 10V analog voltage representing an angle between MIN and MAX and emits a voltage equal to 10 cos. This circuit can have an accuracy of better than 1% over 120 or better than 0.2% over 90.

Clock Tunable, Filter Based Sine Wave Generator - A feedback loop enclosed resonator can be made to oscillate. This circuit’s sine wave generator takes advantage of this and eliminates the need for an amplitude control loop. This circuit, a mildly modified form of the Regan resonant bandpass loop, is clock tunable and produces sine and cosine outputs.

 


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