LandOfFree - US Patents - Listing for Electric lamp and discharge devices: systems,Periodic switch in the supply circuit

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

Ballast having a resonant feedback circuit for linear diode oper

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...

Ballast having a selectively resonant circuit

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...

Ballast having starting current restraint circuitry for preventi

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out

Ballast IC with shut-down function

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

Ballast integrated circuit (IC)

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

Ballast method and apparatus and coupling therefor

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

Ballast scheme for operating multiple lamps

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

Ballast self oscillating inverter with phase controlled...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out

Ballast shutdown circuit for a gas discharge lamp

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

Ballast with active power factor correction

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

Ballast with circuit for detecting and eliminating an arc...

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

Ballast with inverter startup circuit

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

Ballast with output ground-fault protection

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

Ballast with protection circuit for preventing inverter...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out

Ballast with protection circuit for quickly responding to...

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

Ballast with zero voltage switching converter

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

Ballast with zero voltage switching converter

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition

Ballasting circuit for optimizing the current in the...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...

Ballasting network with integral trap