Flash circuit for low cost cameras

Details Flash circuit for low cost cameras Flash circuit for low cost cameras

1997-01-14

1998-09-29

Pascal, Robert J.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315241R, 315239, 315219, H05B 3700

Patent

active

058149481

ABSTRACT:
A flash circuit for a low cost camera in which a voltage dependent resistor is employed as a flash capacitor charge voltage sensing device to perform a control effect in the flash circuit, such as turning on a flash ready indicator light or activating a oscillation terminating device to arrest self oscillations in a flash charging circuit.

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Harris Semiconductor Transient Voltage Suppression, 1993, 2-8 thru 2-10 and 3-1 thru 3-5.

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