Sine wave ring generator

Details Sine wave ring generator Sine wave ring generator

1984-06-13

1986-09-09

Dwyer, James L.

Electric power conversion systems

Phase conversion without intermediate conversion to d.c.

By dynamoelectric machine converter

179 84VF, 363 97, 307261, H04M 500, H03K 5156

Patent

active

046110976

ABSTRACT:
This invention depicts a novel sine wave ring generator for use with a telephone circuit and an input voltage having a predetermined range, the generator comprising a switching power supply for providing a pre-determined DC output voltage from the input voltage range, an oscillator for providing a pseudo-sine wave output with a predetermined frequency, and an amplifier for amplifying the pseudo-sine wave and for receiving the predetermined DC voltage having a low output impedance thereby maintaining regulation of a circuit output voltage in a predetermined range and supplying a circuit output current.

REFERENCES:
patent: 3982189 (1976-09-01), Brooks et al.
patent: 4220826 (1980-09-01), Kiss
patent: 4239935 (1980-12-01), Bosik et al.
patent: 4239941 (1980-12-01), Gauthier et al.
patent: 4456949 (1984-06-01), Incledon
patent: 4459651 (1984-07-01), Fenter

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