Strobo system used for camera

Details Strobo system used for camera Strobo system used for camera

1998-09-08

2000-12-12

Wong, Don

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

H05B 3900

Patent

active

061603562

ABSTRACT:
When the charging voltage across a main capacitor 29, as detected by a charging voltage detector 36, is below a predetermined level, the "on" period pulse duration of the strobo pulse signal from a strobo signal generator 35 for driving an oscillating transformer 13, is reduced compared to the case when the detected charging voltage is above the predetermined level. When a high current load is applied to a power supply 1 in such case as when driving a zoom motor, the CPU 101 tentatively stops the charging of the main capacitor by reducing the "on" period pulse duration of the strobo pulse signal from the strobo pulse signal generator 35 for driving the oscillating transformer 13 or extend the pulse cycle of the strobo pulse signal, or controlling a charging signal generator 34.

REFERENCES:
patent: Re36239 (1999-06-01), Kobayashi et al.
patent: 4005337 (1977-01-01), Rabe
patent: 4591762 (1986-05-01), Nakamura
patent: 4949017 (1990-08-01), Sikora
patent: 5714847 (1998-02-01), Lindauer et al.

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