Electrical weeding device

Abstract

The invention relates to an electrical weeding device, comprising at least two electrodes, whereby the at least one electrode is directed to the weed. The weed activation device is used as a physical herbicide apparatus. The invention relates to a weed inactivation device, comprising at least two electrodes, whereby the at least one electrode is directed to the weed. Object of the current invention is to provide for a use of small, cheap, high-power factor efficient and effective electronic converter to control for constant power output with minimal voltage parasitic fluctuations. In order to achieve this objective, the present invention proposes a weed inactivation device comprising an electrical power source, at least one electronic converter, which comprises a power inverter, a transformer coupled to the inverter and a voltage multiplier coupled to the transformer. The device further comprises a plurality of electrodes coupled to the at least one electronic converter, wherein at least one electrode is pointed at one or more loads (or weed system), and a control unit. The control unit comprising a PWM module and at least one sensor, wherein the PWM module is coupled to the at least one electronic converter and the at least one sensor is coupled to the plurality of electrodes. The control unit controls the power output of the at least one electronic converter to supply, within a determined load range, substantially constant power to the plurality of electrodes by adjusting the duty cycle of the PWM module according to the load and limiting parasitic voltage peaks to 1 kV.

Dependencies are inferred from the claim text.