High-frequency generator with harmonic-tuned resonant circuits
AssigneeSiemens Aktiengesellschaft
InventorsMichael Held, Jochen Stahl
Life of this patent
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Abstract
In order to improve the efficiency of a self-starting high-frequency generator, where for self-starting power is fed back from the anode circuit to the control grid of the grid-controlled electron tube used as amplifier element, the following measures are provided. An additional oscillating circuit (L.sub.A3, C.sub.A3) which is tuned to a multiple of the operating frequency (f.sub.1) is arranged in the anode circuit. An oscillating circuit (L.sub.G31, L.sub.G32, C.sub.G3) tuned to a multiple of the operating frequency (f.sub.1) is likewise arranged in the control-grid circuit. Components (L.sub.G31) belonging to the feedback circuit are at the same time components of the oscillating circuit arranged in the control-grid circuit.
Claims18
A self-starting high-frequency generator comprising:
- a) a grid-controlled electron tube having an anode circuit and a control-grid circuit;
- b) a first resonant circuit in the anode circuit tuned to an operating frequency;
- c) a second resonant circuit in the anode circuit tuned to a multiple of the operating frequency;
- d) a feedback circuit for feedback of power from the anode circuit to the control-grid circuit;
- and
- e) a resonant circuit in the control-grid circuit tuned to said multiple of the operating frequency, and including a component in common with the feedback circuit.
Dependencies are inferred from the claim text.