Pulse generator, particularly to provide ignition pulses for int

Details Pulse generator, particularly to provide ignition pulses for int Pulse generator, particularly to provide ignition pulses for int

1981-02-17

1982-06-22

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Having engine component position sensor

123414, 310 70R, F02P 706

Patent

active

043357008

ABSTRACT:
To simplify a Wiegand wire type pulse source, a Wiegand wire (4) has a coil (3) wound thereon. A permanent magnet (5) is positioned with a gap from the coil, and a magnetically permeable masking element, for example a sector-shaped disk, is movable between the magnet and the coil. The coil (3) is connected to a source of direct current (B) which so magnetizes the Wiegand wire (4) that, when a gap of the masking element occurs between the magnet (5) and the coil (3), the Wiegand wire is reversely magnetized until, again, a solid portion of the masking element is interposed in the gap between magnet (5) and coil (3) to restore the magnetic direction due to the battery (B). Re-magnetization pulses are picked off the coil (3) by a suitable pulse coupling element such as a capacitor (C).

REFERENCES:
patent: 4223249 (1980-09-01), Eshelman
patent: 4237844 (1980-12-01), Lathlaen
.revreaction.Wiegand Effect Getting Practical", by G. M. Walker, from Electronics, Apr. 28, 1977.

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