Double frequency signal generator

Details Double frequency signal generator Double frequency signal generator

2007-05-01

2007-05-01

Callahan, Timothy P (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S119000, C327S131000, C327S134000, C327S135000, C327S136000, C327S172000, C327S175000

Reexamination Certificate

active

11187874

ABSTRACT:
A double frequency signal generator to which a synchronization signal having a duty cycle of 1% to 999% is inputted. The synchronization signal is used for triggering of a switching component at positive and negative edges to generate a triangular-wave signal. An average of voltages of the triangular-wave signal is acquired and compared with the triangular-wave signal at a comparator to generate a square-wave having a duty cycle of 50%. Then, the square-wave signal is used for triggering at positive and negative edges to generate a double frequency signal. As such, the high cost issue and the limitation of a square-wave input signal occurred in the prior art may be efficiently overcome.

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patent: 6834255 (2004-12-01), Abrosimov et al.
patent: 2003/0071586 (2003-04-01), Lin et al.

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