Electronic flash device and power supply circuit

Details Electronic flash device and power supply circuit Electronic flash device and power supply circuit

1997-10-10

2000-05-23

Shingleton, Michael B

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315241S, 396206, 363 15, H05B 4114

Patent

active

060669268

ABSTRACT:
An electronic flash device in which a voltage of a power supply battery is boosted to be supplied to a load, includes a first oscillation portion of self-excited type, a second oscillation portion of separately-excited type, and a changeover portion which performs a changeover between causing the first oscillation portion to operate and causing the second oscillation portion to operate, according to a condition of the load.

REFERENCES:
patent: 4522479 (1985-06-01), Yamada et al.

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