| 摘要 |
In the circuit arrangement for high-frequency operation of a low-]pressure discharge lamp (LP), having a mains rectifier (2) and a push-pull frequency generator (3) with a series-resonant circuit and a switch-off device, the electrode (E2) connected to the positive or negative terminal of the mains rectifier (2) is connected between the mains rectifier (2) and the push-pull frequency generator (3). As a result of this connection of the electrode (E2), when the low-pressure discharge lamp (LP) is replaced, the circuit is interrupted and the switch-off circuit is inhibited. On insertion of a new lamp, the circuit is closed again so that the low-pressure discharge lamp (LP) can be started automatically again by means of the push-pull frequency generator (3). <IMAGE> |
