| 摘要 |
<p>A circuit arrangement for generating high voltage pulses from DC voltage comprising a transformer, a secondary winding and at least two primary windings of said transformer, said primary windings at least one diode and a switching circuit are serial connected; said series circuit is connected to a voltage source, a capacitor is connected to the common terminal of said voltage source and of said primary windings, further said switching circuit is formed from the emitter-collector-section of a switching transistor, on the base of said switching transistor the output of a transistor amplifier is connected and the input of said transistor amplifier is coupled with the output of the control circuit. According to the invention the input (18) of said transistor amplifier (15) is formed from the base of a second transistor (30), between said input (18) and the output of said control circuit (16) two serial connected resistors (17a and 17b) are inserted, to the common terminal of both said resistors (17a and 17b) the emitter-collector-section of a first transistor (24) is connected, to the base of said first transistor (24) a voltage divider is connected, the branch (25) of which standing on the collector side is divided and connected to said voltage source (7), between the dividing point of said branch (25) and the common terminal of said primary winding (3) of said transformer (1) and of said switching transistor (14) a capacitor (26) is inserted, the resistor (27) of said voltage divider inserted on the emitter side is connected to a current control resistor (28), which is in series with the emitter-collector-circuit of said switching transistor (14).</p> |
