AC noise spike suppression circuit with parallel back-to-back fa

Details AC noise spike suppression circuit with parallel back-to-back fa AC noise spike suppression circuit with parallel back-to-back fa

1996-01-23

1998-04-14

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333181, 361118, H03H 706

Patent

active

057397325

ABSTRACT:
An alternating current (AC) spike absorption circuit employs a pair of back-to back parallel high-speed ultra-soft recovery diodes with unique RFI prevention characteristics. Further high frequency noise suppression is achieved by using a high voltage parallel-connected capacitor and a plurality of series-connected parallel ceramic-type resistors which are formed by resistors having coil windings providing an equivalent circuit of parallel resistance and inductance. The inductance provides ultra high frequency rejection and the resistance provides damping of any ringing oscillation. A surrounding ceramic material casing of the ceramic-type resistors resists the transmission of radio frequency energy.

REFERENCES:
patent: 3305801 (1967-02-01), Hartenstein
patent: 4543554 (1985-09-01), Muellenheim et al.
patent: 5343381 (1994-08-01), Boldoc et al.
Williams, Power Electronics: Devices, Drivers, Applications and Passive Components, 1987, pp. 60-64.

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