4. Electric resistance heating devices
  5. Heating devices
  6. Vaporizer

Timothy Chen

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Ballast circuit with lamp cathode protection and ballast...

Electric lamp and discharge devices: systems – Condenser in the supply circuit – Inductance in the condenser circuit
Reexamination Certificate

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Circuit with improved efficiency and crest factor for...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate

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Dimming ballast and method

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Reexamination Certificate

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Dimming ballast resonant feedback circuit

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate

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Discharge lamp lighting system for avoiding high in-rush current

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – With power factor control device
Patent

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Profile ID: LFUS-PAI-P-556559

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