Multiple element capacitor

Details Multiple element capacitor Multiple element capacitor

1997-09-05

1999-10-26

Sough, Hyung-Sub

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361328, H01G 4228, H01G 438

Patent

active

059739070

ABSTRACT:
Multielement capacitors have at least one metal capacitor and at least one ceramic capacitor with common terminals in a common case. The preferred metal capacitance elements have an effective series capacitance of at least 1 microfarad at frequencies of up to 100 kHz. The individual metallic capacitance elements exhibit an ESR of less than 100 milliohms at 100 kHz and a dissipation factor (DF) of less than about 6% at 120 Hz. The ceramic capacitance elements useful in the invention have an equivalent series capacitance of at least about 0.1 microfarads at frequencies of up to about 100 MHz. The individual ceramic capacitance elements have an ESR of less than 20 milliohms at 1 MHz and a dissipation factor of less than 10% at 1 kHz.

REFERENCES:
patent: 3686535 (1972-08-01), Piper
patent: 5010443 (1991-04-01), Piper
patent: 5198968 (1993-03-01), Galvagni
patent: 5561587 (1996-10-01), Sanada
patent: 5599757 (1997-02-01), Wilson et al.
patent: 5600533 (1997-02-01), Sano et al.
patent: 5734545 (1998-03-01), Sano et al.

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