Internal-combustion engines – High tension ignition system – Using capacitive storage and discharge for spark energy
Patent
1979-09-18
1981-04-07
Myhre, Charles J.
Internal-combustion engines
High tension ignition system
Using capacitive storage and discharge for spark energy
307300, 307303, 315209T, F02P 306
Patent
active
042599393
ABSTRACT:
A monolithic Darlington in which the transistors forming the Darlington pair are formed on a substrate together with a fourth terminal in addition to the normal three terminals provided for a Darlington pair, the fourth terminal being connected to the base electrode of the second transistor and the emitter electrode of the first transistor. The addition of the fourth terminal enables a control circuit for controlling the rate of switch off to be connected between the fourth terminal and the command collector electrode, this removing the effect which the stored charge on the base electrode of the first transistor has on the switching rate of the Darlington pair, thus enabling a faster switching rate to be achieved.
REFERENCES:
patent: 4072981 (1978-02-01), Black et al.
patent: 4106462 (1978-08-01), Hildebrandt et al.
patent: 4122814 (1978-10-01), Ford
patent: 4140926 (1979-02-01), Price
patent: 4147145 (1979-04-01), Djinland et al.
patent: 4188929 (1980-02-01), Podrapsky et al.
patent: 4188930 (1980-02-01), Santi
Lumenition Limited
Myhre Charles J.
Nelli R. A.
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