| 摘要 |
<p>The control circuit (3) has a preliminary stage (15) and a main stage (17). The preliminary stage is formed as pre-amplifier with a control signal input (9) and a preliminary stage output (31) for release of a pre-amplified control signal, and the main stage as low setting plate circuit. The low setting plate circuit has a main stage transistor (19) as switch, whose control inlet is connected with the pre-amplifier outlet.</p> |
