Browse Prior Art Database

Phase Converting System

IP.com Disclosure Number: IPCOM000097458D
Original Publication Date: 1962-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Volochine, A: AUTHOR

Abstract

The double RC bridge arrangement allows application between M and M1 of a voltage which is in phase or in phase opposition with the voltage between A and B, without reaching the system distortion limits.

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Phase Converting System

The double RC bridge arrangement allows application between M and M1 of a voltage which is in phase or in phase opposition with the voltage between A and B, without reaching the system distortion limits.

The voltage phases at the various points of the circuit A are represented on the diagram B. The voltage at 0 is the origin voltage.

Resistor R and capacitor C are adjusted so that the is equal to 90 degrees for point M. On the other hand, the voltage phase shift between O and M1 depends upon the relative values of R1 and C1. The limits of the variation of R1 are selected so that the phase shift varies between two values represented on the graphic by vectors OM0 and OM2. Under these conditions, the phase shift of the voltage between M and M1 with respect to the voltage between A and B varies according to R1 between MMO ( phi = 180o) and MM2 ( phi = 0). It is possible to adjust values R and R0 or the voltage in C or D so that in MM0 and MM2 the voltage is arithmetically equal to that between A and B.

It is therefore possible, by varying R1 between not too large limits, to realize, for MM1, a the varying between 0 degree and 180 degrees

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