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A D.C. Controlled Magnetic Oscillator

IP.com Disclosure Number: IPCOM000098448D
Original Publication Date: 1960-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Kuntzleman, HC: AUTHOR [+2]

Abstract

The magnetic oscillator comprises two ferrite pieces 10 and 11 bearing the windings A... F. Windings A and B form the inductive elements of a tuned circuit that includes the capacitor C1. The tuned circuit is connected with a transistorized drive circuit that includes the drive winding C. Winding D is an output winding. Windings E and F are control windings.

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A D.C. Controlled Magnetic Oscillator

The magnetic oscillator comprises two ferrite pieces 10 and 11 bearing the windings A... F. Windings A and B form the inductive elements of a tuned circuit that includes the capacitor C1. The tuned circuit is connected with a transistorized drive circuit that includes the drive winding C. Winding D is an output winding. Windings E and F are control windings.

When D.C. current is applied to windings E and F, a blocking action occurs with respect to winding D due to the magnetic saturation of cores 10 and 11. Additionally, the frequency of the oscillator is changed due to the change in the inductance of windings A and B. Because of the blocking action created by the D.
C. excitation of windings E and F, it is possible to gate bursts of the oscillator frequency occurring on output D. Optionally, by a controlled application of the D.C. pulse to windings E and F, it is possible to generate a D.C. level shift of the output A.C. occurring on D. Alternatively, an A.C. signal may be applied to windings E and F to modulate the output at D.

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