Electric lamp and discharge devices: systems – Condenser in the supply circuit – Condenser in shunt to the load device and the supply
Patent
1979-03-28
1981-03-24
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Condenser in shunt to the load device and the supply
315136, 315151, 354127, H05B 4132
Patent
active
042582970
ABSTRACT:
A voltage indicator for a stroboscope, having a high voltage generator (10), discharge capacitor (12), flash tube (20) and trigger circuit (22), which further comprises a light-emission diode (LED) (16) connected in series to a current path for charging the discharge capacitor (12) with electric energy; switch means (14) for selectively operating the LED (16) and a comparator (18) for selectively actuating the switch means (14). The LED (16) is not lighted when electric energy is not sufficiently stored in the discharge capacitor (12) to cause the flash tube (20) to give off flashes. When the comparator (18) detects a sufficient charge of electric energy in the discharge capacitor (12) for the light emission of the flash tube (20), then the LED (16) can be lighted.
REFERENCES:
patent: 3777212 (1973-12-01), Mashimo
patent: 3831079 (1974-08-01), Iwata
patent: 4068150 (1978-01-01), Iwata et al.
patent: 4163924 (1979-08-01), Hasegawa et al.
LaRoche Eugene R.
Olympus Optical Co,. Ltd.
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