Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Phase shift by less than period of input
Patent
1997-08-19
1999-03-02
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Phase shift by less than period of input
327252, 327359, H03K 300
Patent
active
058776435
ABSTRACT:
Phase shift amplifier formed by a differential pair of input transistors each collector of which transistors is connected to a respective phase shift resistor and to a phase shift capacitor, whereas the other ends of each phase shift resistor form nodes A and B respectively, while the other ends of the phase shift capacitors are connected in a cross-coupling. According to the invention, the nodes A and B are connected to the input of amplifiers of the transimpedance type at the output of which amplifiers a differential signal is available which is phase shifted relative to the differential input signal.
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patent: 4663594 (1987-05-01), Perkins
patent: 4866397 (1989-09-01), Kimyacioglu
patent: 5148062 (1992-09-01), Goldfarb
patent: 5345346 (1994-09-01), Brannon et al.
U.S. Philips Corporation
Wells Kenneth B.
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