US 12,702,128 B2

摘要

Electrical apparatus to kill a plant or at least attenuate plant growth, the apparatus comprising: an electrical energy supply unit; an applicator unit comprising an applicator electrode; a return unit comprising a return electrode; electrical circuitry; the electrical energy supply unit arranged to apply electrical energy through a transmission circuit comprising the applicator electrode, and the return electrode, wherein the electrical circuitry arranged to control an electrical impedance of the electrical energy supply unit to control a property of the electrical energy to the electrodes.

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