Multiphased triangular wave oscillating circuit and...

Details Multiphased triangular wave oscillating circuit and... Multiphased triangular wave oscillating circuit and...

2005-08-05

2008-03-25

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Generating sawtooth or triangular output

C327S132000, C327S170000, C323S284000, C331S045000

Reexamination Certificate

active

07348812

ABSTRACT:
To oscillate and output multiphased triangular waves with a designed waveform shape, wave crest value, and phase relationship. This multiphased triangular wave oscillating circuit has two triangular wave generating circuits10A and10B for generating two phased triangular waves A and B with phases opposite each other, a middle point potential fixing element20that always fixes the middle point potential of the output voltage A and B of the two triangular wave generating circuits10A and10B at a fixed value, and a mode switching element30that instantly switches the output voltage generation mode (up-slope waveform mode/down-slope waveform mode) in the two triangular wave generating circuits10A and10B at a preset reference wave crest value level.

REFERENCES:
patent: 6121802 (2000-09-01), Luciano et al.
patent: 6587006 (2003-07-01), Kawajiri et al.
patent: 2005/0007167 (2005-01-01), Tange

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