Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply
Patent
1993-03-10
1995-01-31
Pascal, Robert J.
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Condenser in shunt to the load device and the supply
315151, H05B 3702
Patent
active
053861809
ABSTRACT:
In this strobo apparatus, in a strobo controlling circuit in which such self-arc extinction-type gate-controlling type switching device as an IGBT is connected in series with a flash discharge tube to control the flash of the discharge tube, a bias voltage controlling the on/off operation of the above-mentioned gate-controlling type switching device is obtained from a biasing condenser charged with an exciting current of the flashing discharge tube or directly from a power source voltage boosting circuit through a resistance or sub-condenser.
REFERENCES:
patent: 3789503 (1974-02-01), Nishida et al.
patent: 4258290 (1981-03-01), Nakajima
patent: 4258297 (1981-03-01), Nakajima
patent: 4274724 (1981-06-01), Nakajima
patent: 4363542 (1982-12-01), Kondo et al.
patent: 4444483 (1984-04-01), Nakajima
patent: 4847538 (1989-07-01), Iwata et al.
Kawakami Satoshi
Nakajima Yukio
Yamada Hiroshi
Yoshida Muneaki
Olympus Optical Co,. Ltd.
Pascal Robert J.
Shingleton Michael B.
Weinstein Louis
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