Regulated forward converter for generating repeating spark disch

Details Regulated forward converter for generating repeating spark disch Regulated forward converter for generating repeating spark disch

1989-09-25

1990-04-17

Beha, Jr., William H.

Electricity: electrical systems and devices

Igniting systems

For electric spark ignition

123605, 123650, 123652, 315219, 363131, F23Q 300

Patent

active

049185691

ABSTRACT:
A discharge load driving circuit has a transformer with a low voltage coil and a high voltage coil wound around a magnetic core. The high voltage coil has a transformation ratio for setting a high self-resonance frequency value for the transformer to thereby output high voltage at a short rise time period. The discharge load driving circuit further includes a switching element connected to the transformer for switching on and off a d-c input supplied thereto through the low voltage coil of the transformer. The discharge load driving circuit further includes a driver circuit for driving a switching element driving pulse, a control circuit for controlling the driver circuit, a discharge load connected to the high voltage coil for discharging load by a high voltage output generated in the high voltage coil when the switching element is turned on, and a detector for detecting a flow of discharge current in the discharge load. The switching element repeats its on-off action in a predetermined. For supplying a required amount of discharge energy to the discharged load until self-propagation of a flame subsequent to generation of a flame nucleus by a spark discharge of the discharge load.

REFERENCES:
patent: 3034018 (1962-05-01), Rosenberg
patent: 3319618 (1967-05-01), Sohner
patent: 4355263 (1982-10-01), Buhrlein
patent: 4418375 (1983-11-01), Ober
patent: 4495446 (1985-01-01), Brown et al.

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