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CIRCUIT ARRANGEMENT FOR ELECTRODE PRE-HEATING OFA FLUORESCENT LAMP BACKGROUND OF THE INVENTION 1. Field of the Invention
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kinkead, Allen K. |
| Copyright Year | 2017 |
| Abstract | A circuit arrangement used with electronic ballast equipment has an inverter which Supplies a high-frequency half-bridge Voltage to at least one load circuit having a lamp throttle, a fluorescent lamp, an ignition capacitor, and a half-bridge capacitor. In order to pre-heat the coils of the fluorescent lamp in a short period of time, a Switchable Voltage Source is activated. This Voltage Source is connected to the output of the inverter. The outputs of the Voltage Source are constructed as a pair, to which the electrodes and the fluorescent lamp are connected in parallel. This Voltage Source includes a transformer having a primary winding coupled to the inverter and is Switched between non conducting and conducting (energized) States by a Switching Stage. The Secondary windings of the transformer are con nected in parallel to the electrodes of the fluorescent lamp. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/ce/a8/d3/f83219cf9fa93d/US5854538.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
