Pulsed electric system for operating a gas discharge lamp专利检索-气体放电灯光源灯光专利检索查询-专利查询网

Pulsed electric system for operating a gas discharge lamp

阅读：512发布：2022-10-04

专利汇可以提供Pulsed electric system for operating a gas discharge lamp专利检索，专利查询，专利分析的服务。并且A continually pulsing electric system for operating a gas discharge lamp directly from an alternating current source is shown in which a gas discharge lamp is connected in series with solid state switching means directly across the terminals of an alternating current supply. Control means for the solid state switching means is included as is starting means for initially igniting the gas discharge lamp. Curves are included showing the increased efficiency under pulsed operation.，下面是Pulsed electric system for operating a gas discharge lamp专利的具体信息内容。

权利要求

1. A continuously pulsing electric system for operating a gas discharge lamp directly from an alternating current source normally ranging from one lower voltage to a higher voltage, the electric system comprising a gas discharge lamp having full wattage loading under full wave operation at said lower voltage, solid state switching means connected in series with said discharge lamp; circuit means connecting said series connected switching means and lamp substantially directly across said alternating current source, and utilizing solely the alternating current source impedance as ballast, for applying across said series connected switching means and discharge lamp substantially the full voltage and wave form of the source; adjustable control means for said solid state switching means operative responsive to the voltage of the source above the lower voltage for decreasing the phase angle of switching of said switching means so as to maintain the operating wattage of said lamp at a desired level, and triggering means for starting said lamp, said control means including resistor-capacitor means connected across said source and operative to switch said solid state switching means.

2. An electric system according to claim 1 in which said control means is operative between 30* and 150* of each half cycle of alternation of said source.

3. An electric system according to claim 1 in which said control means is operative between 40* and 120* of each half cycle of alternation of said source.

4. An electric system according to claim 1 in which starting means is provided for said lamp.

5. An electric system according to claim 4 in which said starting means includes current limiting means, a pulse transformer having primary and secondary windings, a triggering capacitor connected in series with said primary winding and said current limiting means across said source, solid state switching means connected across said triggering capacitor and said primary winding operative to discharge said capacitor through said primary winding, said secondary winding connected to said discharge lamp, and adjustable RC means connected across said source to said solid state switching means for the control thereof.

6. An electric system according to claim 1 in which a resistor is connected across said electronic switch so that said lamp after being started is supplied with ionizing current during the portions of the cycle when said electronic switch is nonconducting.

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