| 摘要 |
A Darlington pair having a high-voltage power transistor for a line deflection circuit and/or a switched-mode power supply. The drive circuit comprises two current paths, namely a switch-on path coupled to the base electrode of the high-voltage power transistor and which comprises a switched-mode current source, and a switch-off path which comprises an inductance, a substantially constant-voltage source and a switch and which is included between the base and emitter electrode of the high-voltage power transistor, the switched current flowing while the switch is cut-off and vice versa. |
