Circuit for inhibiting the supply of power to a discharge lamp

Details Circuit for inhibiting the supply of power to a discharge lamp Circuit for inhibiting the supply of power to a discharge lamp

1997-04-03

1999-07-20

Wong, Don

Electric lamp and discharge devices: systems

With automatic shunt and/or cutout

315127, 315225, H05B 3700

Patent

active

059259833

ABSTRACT:
A lighting circuit for a discharge lamp includes lighting control circuit for controlling the lighting of a discharge lamp, ignition means for supplying a trigger pulse to the discharge lamp and a socket. Power is supplied to the discharge lamp via terminals of the socket and terminals of a connector section of the discharge lamp. The socket and the connector section are respectively provided with connection terminals which are to be connected together while the discharge lamp is connected to the connecting member. When those connection terminals are not connected together, the supply of power and the supply of the trigger pulse to the discharge lamp are inhibited. This prevents problems (damaging insulation, an electric shock and the like) from arising when the lighting circuit is activated while the discharge lamp is not connected to the lighting circuit.

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