| 摘要 |
An apparatus for lighting a fluorescent lamp, by which energy saving and quick-starting are possible, and also, lighting the fluorescent lamp is easy even with a low frequency electric power. The apparatus comprises current limiting means and preheating means. The current limiting means is made up of diodes, etc. which so operate as to make an AC correspond alternately, current amplifying circuits for amplifiying the currents transferred via the diodes, etc., limiting transistors for suppressing the amplifying circuit from amplifying the currents excessively, bias resistors for setting the reference values of the currents which flow through the amplifying circuits and the limiting transistors, and the like. The current limiting means limits the currents, which are made to correspond alternately, to predetermined levels. The preheating means preheats the filaments at both the ends of the fluorescent lamp by supplying to them the AC power outputted by the current limiting means and stops its own operation after the discharge starts and the lamp lights. |
