H - Electricity – 03 – K
Patent
H - Electricity
03
K
H03K 3/30 (2006.01) H05B 41/282 (2006.01) H02M 7/5383 (2006.01)
Patent
CA 2294741
By adding a base bridging capacitor (C6, C6') between the base connections of a bipolar transistor bridge oscillator, in particular of an electronic ballast for a low-pressure gas discharge lamp, the collector initial current peak is avoided, while ensuring that the switching transistors (T1, T2) are switched on, without any voltage, at the right time.
En insérant un condensateur à pont de base (C6, C6') entre les connexions de base d'un oscillateur à pont transistor bipolaire, en particulier d'un dispositif de protection électronique pour une lampe à décharge gazeuse basse pression, les pics de courant de polarisation au collecteur sont évités et une mise en circuit sans tension, à un moment précis, des transistors de commutation (T1, T2) est garantie.
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
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