Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply
Patent
1997-07-29
1999-02-09
Le, Hoanganh
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Condenser in shunt to the load device and the supply
315241R, 315241P, 315245, H05B 3700
Patent
active
058699368
ABSTRACT:
A strobe device according to the present invention includes: a main capacitor; and step-up means including at least one step-up capacitor, the at least one step-up capacitor being rapidly charged via a flash discharge tube in an ionization state, a charged voltage of the at least one step-up capacitor being superimposed on a charged voltage of the main capacitor and applied across the flash discharge tube at least via an insulated gate bipolar transistor and a restriction resistor coupled in series with the flash discharge tube. The resistance value of the restriction resistor is prescribed to satisfy both of the following two conditions:
REFERENCES:
patent: 4697906 (1987-10-01), Kobayashi et al.
patent: 5180953 (1993-01-01), Hirata et al.
patent: 5250977 (1993-10-01), Tanaka
Horinishi Katsumi
Kobayashi Takanaru
Le Hoang-anh
Philogene Haissa
West Electric Company Ltd.
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