초록 ▼

An ignition device for an internal combustion engine has a DC power source, first and second switching elements, a control signal generator for the switching elements, an ignition coil, and spark gaps. A first part of a primary coil of the ignition coil, a capacitor, the DC power source, and the fir

An ignition device for an internal combustion engine has a DC power source, first and second switching elements, a control signal generator for the switching elements, an ignition coil, and spark gaps. A first part of a primary coil of the ignition coil, a capacitor, the DC power source, and the first switching element form a closed circuit. A second part of the primary coil and the second switching element form another closed circuit. The signal generator generates ON signals for alternately turning on the first and second switching signals at predetermined timings based on an ignition command signal. The ignition performance of this ignition device for an internal combustion engine is improved.

대표청구항 ▼

An ignition device for an internal combustion engine, comprising: a DC power source for generating a DC voltage; an ignition coil having a primary coil and a secondary coil, at least said primary coil being divided into first and second parts by an intermediate tap; a spark gap connected to said sec

An ignition device for an internal combustion engine, comprising: a DC power source for generating a DC voltage; an ignition coil having a primary coil and a secondary coil, at least said primary coil being divided into first and second parts by an intermediate tap; a spark gap connected to said secondary coil; a capacitor connected to said intermediate tap of said primary coil; a first switching element for forming a first closed circuit together with the first part of said primary coil, said capacitor and said DC poser source, said capacitor charging through said primary coil first part and a high voltage for ignition being generated across said secondary coil when said first switching element conducts; a second switching element for forming a second closed circuit together with said second part of said primary coil and said capacitor, said capacitor discharging through said primary coil second part and a high voltage for ignition being generated across said secondary coil when said second switching element conduts; and a signal generating circuit, responsive to an ignition command signal, for generating a plurality of ON signals during a predetermined period of ignition timing so as to alternately turn on said first and second switching elements at predetermined timings during said predetermined period.