Circuit for protecting electrically operated lighting elements,

Details Circuit for protecting electrically operated lighting elements, Circuit for protecting electrically operated lighting elements,

1997-12-01

1999-08-17

Wong, Don

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315119, H05B 3700

Patent

active

059398396

ABSTRACT:
A circuit for protecting electrically operated lighting elements used for illumination or signaling has at least one PTC resistor connected serially upstream of the lighting element. In another embodiment, the circuit has a self-regulating current supply connected serially upstream of the lighting element. In yet another embodiment, the circuit has a down convertor connected serially upstream of the lighting element.

REFERENCES:
patent: 4164145 (1979-08-01), Aron
patent: 5008613 (1991-04-01), Steinel et al.

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