| 摘要 |
The invention relates to a circuit arrangement for energy-saving operation o f a fluorescent tube (1) whereby two respective connections (2a, 2b; 3a, 3b) a re arranged on the end caps (1a, 1b) of said tube. The fluorescent tube is mechanically and electrically linked to brackets (8, 9) via said connections (2a, 2b; 3a, 3b) and can be connected to an alternating current supply (6) v ia a reactance coil (4) and a starter (5). The objective of the invention is to allow the fluorescent tube to be retrofitted in a simple manner. This is achieved by means of a quadrupole (4) circuit arrangement, whereby the input terminals (7a, 7b) of said quadrupole form a series connection with the two connections (2a, 2b; 3a, 3b) on one end cap (1a, 1b) and the reactance coil (4), whereby said circuit is connected in parallel to the alternating curren t source (6), and the output terminals (7c, 7d) of said quadrupole are electrically connected to the two connections (3a, 3b,2a, 2b) on the other e nd cap (1b, 1a).
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