Ignition coil durability testing apparatus and method

Details Ignition coil durability testing apparatus and method Ignition coil durability testing apparatus and method

2005-01-11

2005-01-11

Patidar, Jay (Department: 2858)

Electricity: measuring and testing

Internal-combustion engine ignition system or device

C324S546000

Reexamination Certificate

active

06842007

ABSTRACT:
An ignition coil durability testing apparatus and method utilizing an electronic spark timing circuit, a plurality of SCRs, a plurality of LEDs, and a voltage detection circuit. The electronic spark timing circuit activates an ignition switching transistor which applies a time varying voltage to a primary winding of an ignition coil. The plurality of SCRs are connected in series. A sustaining voltage device in the form of a spark gap or zener box is connected in series with the plurality of SCRs. The secondary winding of the ignition coil is connected to one end of the spark gap or an input of the zener box and to one input of a comparator through a voltage divider and a voltage reference is also connected to the other input of the comparator. When the output voltage of the secondary winding exceeds a preset breakdown voltage, the comparator turns on the plurality of LEDs which activate the plurality of SCRs. The high voltage of the secondary is then applied across the plurality of SCRs and the sustaining voltage device.

REFERENCES:
patent: 3806796 (1974-04-01), Goldstein
patent: 3887866 (1975-06-01), Safer et al.
patent: 4993395 (1991-02-01), Vogel et al.
patent: 5044349 (1991-09-01), Benedikt et al.
patent: 5195496 (1993-03-01), Gokhale
patent: 6035838 (2000-03-01), Tozzi et al.
patent: 6556116 (2003-04-01), Skinner et al.
“Ignition System Measurements Procedure”SAE J973, Society of Automotive Engineers, Inc. dated 1999.

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