Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1987-02-24
1988-08-30
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333167, 333176, 333181, 363 47, H03H 701, H03H 709
Patent
active
047680024
ABSTRACT:
A power filter resonant frequency modulation network for coupling between a load and a variable voltage direct current power source which is subjected to superposition of alternating current thereon at various frequencies and at various voltage levels, the filter including first and second series inductor arrangements in the positive and negative buses between the power supply and the load, with capacitive elements in parallel between the two buses. Each series inductor arrangement includes a first inductor in series with a frequency and voltage responsive inductive load device, which is a second inductor having a tertiary winding loaded with a coil wound about the core of a saturable reactor. The firing angles of the reactors are directly proportional to voltage and inversely proportional to voltage to provide a phase staggered change of inductance in the network. At higher frequencies and lower voltages, the loading reactors are out of saturation and present a very high impedance to the circuit, the effect resulting in a broadening of the normal high Q peaking within a range of frequencies at resonance.
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Nussbaum Marvin L.
Triad Microsystems, Inc.
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