Electricity: measuring and testing – Internal-combustion engine ignition system or device – Apparatus for coupling a measuring instrument to an ignition...
Patent
1989-04-03
1990-07-17
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Internal-combustion engine ignition system or device
Apparatus for coupling a measuring instrument to an ignition...
324391, 324390, 324 96, F02P 1700
Patent
active
049423622
ABSTRACT:
An analyzation apparatus for ignition systems that has a pulse detector circuit that generates and converts an AC signal into a DC signal, filters unwanted signals and allows the user to adjust the amplitude of the signal to accommodate differing ignition systems. A pulse stretching circuit is included to increase the duration of the signal and an analog driver circuit is included to convert the signal received by it to a linear voltage suitable for driving two LED display circuits. The LED circuits are connected in parallel with the driver circuit and the visual display of the LED circuits show a display proportional to the amplitude of the signal received from the driver circuit. The LED displays show the amplitude of the signal. The LED circuits have diodes the prevent current flow between adjacent LED's of the adjacent LED circuits. The apparatus includes a function switch to select the LED circuit desired and to interrupt power to the apparatus. A portion of the elements are enclosed in a case. There are power leads to provide power to the apparatus. The apparatus may include a timing light circuit, a triggering switch and a strobe.
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Baker David L.
Eisenzopf Reinhard J.
Group Andsel
Harvey Jack B.
Massie Lewis
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