At frequency phase shifting circuit for use in a quadrature cloc

Details At frequency phase shifting circuit for use in a quadrature cloc At frequency phase shifting circuit for use in a quadrature cloc

1997-07-10

1998-09-15

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Phase shift by less than period of input

327238, 327254, 327344, H03H 1116

Patent

active

058084983

ABSTRACT:
A phase shifting circuit that may be used as part of a quadrature clock generator. The phase shifting circuit comprises a triangle wave generator coupled to receive an input reference signal. The triangle wave generator outputs a pair of complementary triangle wave signals in response to the input reference signal. A comparator having a pair of inputs is coupled to receive the pair of complementary triangle wave signals. The comparator outputs an output signal having a predetermined phase relationship with the input reference signal in response to a comparison between the pair of complementary triangle wave signals.

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