Circuit arrangement for starting and operating a gas- and/or vap

Details Circuit arrangement for starting and operating a gas- and/or vap Circuit arrangement for starting and operating a gas- and/or vap

1980-05-05

1982-11-09

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Discharge control discharge device in the supply circuit

315104, 315309, 315DIG7, H05B 4136

Patent

active

043587119

ABSTRACT:
A circuit arrangement for starting and operating a discharge lamp by means of an electronic ballast includes a series arrangement of a PTC resistor and an ohmic resistor connected in parallel with an electronic switch of the ballast, with only the PTC resistor being in parallel with a control circuit of the electronic switch. The value of the ohmic resistor is 8 to 12 times the cold resistance of the PTC resistor.

REFERENCES:
patent: 4253043 (1981-02-01), Chermin et al.

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