Offset reduction in a zero-detect circuit

Details Offset reduction in a zero-detect circuit Offset reduction in a zero-detect circuit

1994-09-13

1997-04-22

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 65, 327 76, H03K 5153

Patent

active

056232209

ABSTRACT:
A zero-crossing circuit and method, in which the sign of inputs to a comparator is reversed after each zero crossing of the input signal. This means that delay introduced by the comparator does not affect the duty cycle of the output signal, so precision synchronization remains possible.

REFERENCES:
patent: Re34428 (1993-11-01), George et al.
patent: 3593166 (1971-07-01), Martin
patent: 3727079 (1973-04-01), Garrett
patent: 3755747 (1973-08-01), Letosky
patent: 3768024 (1973-10-01), Letosky
patent: 3955102 (1976-05-01), Chi
patent: 4079327 (1978-03-01), Van Uffelen
patent: 4080574 (1978-03-01), Loosemore et al.
patent: 4090144 (1978-05-01), Jenik et al.
patent: 4135161 (1979-01-01), Torrieri
patent: 4137504 (1979-01-01), Simmons
patent: 4138649 (1979-02-01), Schaffer
patent: 4272690 (1981-06-01), Riney et al.
patent: 4297642 (1981-10-01), Baldwin et al.
patent: 4345169 (1982-08-01), Saleh
patent: 4352999 (1982-10-01), Galpin
patent: 4406988 (1983-09-01), Scholz
patent: 4450368 (1984-05-01), Spence
patent: 4480200 (1984-10-01), Tan et al.
patent: 4636656 (1987-01-01), Snowden et al.
patent: 4697098 (1987-09-01), Cloke
patent: 4749879 (1988-06-01), Peterson et al.
patent: 4764752 (1988-08-01), Ormond
patent: 4882740 (1989-11-01), Abe et al.
patent: 5182476 (1993-01-01), Hanna et al.
patent: 5278462 (1994-01-01), Wilson
patent: 5359652 (1994-10-01), Mulder et al.
Electronics Int., Apr. 13, 1978, pp. 135-137, A. Kaniel "Subtractor eliminates op--amp offset, common--mode errors".

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