Imaging apparatus, strobe device, and charging-control method

Details Imaging apparatus, strobe device, and charging-control method Imaging apparatus, strobe device, and charging-control method

2011-03-29

2011-03-29

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

C315S24100S, C315S219000, C315S24100S, C315S224000, C315S307000, C320S140000, C320S149000, C320S166000

Reexamination Certificate

active

07915835

ABSTRACT:
An imaging apparatus including a strobe device having a charging circuit of a separately excited oscillation type is provided. The apparatus includes a main capacitor in which charge is accumulated to supply power to a strobe-light-flashing unit, a step-up transformer including at least primary and secondary coils, a switching element that performs a switching operation to control a current supplied to the primary coil, a rectifier diode that rectifies a flyback pulse generated in the secondary coil to supply a charging voltage to the main capacitor, a power-supply-interrupting circuit that selectively interrupts power supplied from the power supply, a full-charge detection unit that detects whether the main capacitor reaches a fully charged state, and a power-supply-control unit that controls the power-supply-interrupting circuit so as to set the power-supply-interrupting circuit to be in an interrupting state.

REFERENCES:
patent: 3917975 (1975-11-01), Birkner
patent: 4295717 (1981-10-01), Kitagawa
patent: 5780976 (1998-07-01), Matsuo
patent: 6291974 (2001-09-01), Matsuo
patent: 6892029 (2005-05-01), Tsuchida et al.
patent: 2000-275706 (2000-10-01), None
patent: 2007-48702 (2007-02-01), None

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