Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-12-13
1987-03-31
Clawson, Jr., Joseph E.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307305, 357 38, 357 51, H03K 1760
Patent
active
046545433
ABSTRACT:
A thyristor is preferably fabricated as a single thyristor device in an integrated circuit. The thyristor is made conductive by applying an ordinary gating voltage to the gate thereof. However, the thyristor can be kept in a conductive state, even though a current flowing through the anode and cathode thereof is stopped, if the current is restored to flow through it again within a predetermined short time after has stopped. The thyristor is composed of a first transistor and a second transistor (both of which are also used in a typical thyristor component) a third transistor which forms a Darlington connection with the second transistor, a resistor which is connected between the base and the emitter of the third transistor, and a capacitor which is connected between the base of the second transistor and the emitter of the third transistor.
REFERENCES:
patent: 3549909 (1970-12-01), Adelson et al.
patent: 3846648 (1974-11-01), Scott
patent: 4015143 (1977-03-01), Tokunaga et al.
patent: 4112315 (1978-09-01), Ohhinata
patent: 4125787 (1978-11-01), Ohhinata et al.
Clawson Jr. Joseph E.
Fujitsu Limited
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