Fluorescent tube power supply

Details Fluorescent tube power supply Fluorescent tube power supply

1988-09-09

1990-07-31

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315244, 315DIG2, 315DIG5, H05B 4124, H05B 4129

Patent

active

049452789

ABSTRACT:
The inventive power supply converts the low-frequency alternating current source into high-voltage direct current. An induction windings network series connected to the fluorescent tube provides a feedback signal to a pair of bridging transistors which then respectively alternates to be on or off to output a high-frequency, high-voltage signal for the tube to use. The network is connected so that the inductors provide the feedback signal, the signal having a resonant frequency suitable for activating the tube. The light emitted in accordance with this invention is continuous, due to the inventive feedback, in comparison to the light emitted by a fluorescent tube utilizing a transformer and a starter.

REFERENCES:
patent: 4775822 (1988-10-01), Statnic et al.
patent: 4782268 (1988-11-01), Fahnrich et al.

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