Abstract: Electric fence energizers used with fencing systems are provided. The energizers can be used to provide an unsafe electric shock, as defined by safety agencies such as UL, where the electric fence energizers are capable of operating continuously regardless of the fence load. Alternately, the energizers can be equipped so as to be selectively set in one of a plurality of modes of operation, for example, “unsafe mode”, “lethal mode”, and “safe mode”.

Abstract: A lightning protection circuit for electric fence energizers used with electric fencing systems is provided. The circuit includes a protective combination having at least two electrical components connected in series. The protective combination allows induced voltage from lightning strikes to be effectively spread across a first of the electrical components and a switch of the fence energizer, so as to limit peak levels of current drawn to a second of the electrical components.

Abstract: Electric fence energizers used with fencing systems are provided. The energizers can be used to provide an unsafe electric shock, as defined by safety agencies such as UL, where the electric fence energizers are capable of operating continuously regardless of the fence load. Alternately, the energizers can be equipped so as to be selectively set in one of a plurality of modes of operation, for example, “unsafe mode”, “lethal mode”, and “safe mode”.

Abstract: The present invention provides a low duty cycle, high current DC pulse type transformer with increased coupling coefficient between the primary and secondary windings by changing the proximity of the primary windings to the secondary windings through a plurality of primary windings separated by layers of secondary windings thus reducing the average distance between the primary windings and secondary windings. In addition to the increased coupling coefficient, the invention provides a reduction in electrical potential between primary windings and secondary windings through an electrical connection between the primary winding and a tap within the secondary winding.

Abstract: A stock prod having a circuit that may be operated by a micro-controller, allows the prod to deliver a consistent voltage level to discharge electrodes, even though the power sources may vary. An improved transformer and the use of polypropylene increase the safe operation of the prod. The voltage to the discharge electrodes of the prod can be adjusted within a predetermined range of voltages, energies, and/or pulse rates to allow the prod to be effectively used on subjects having different physical parameters. The prod may be provided with a single or multi-function actuator, and a trigger that may be selectively disabled by a lock. The prod may also include a variety of indicators with which an operator may assess the operational characteristics of the prod. The prod may include a removable, rechargeable power supply that may be combined with a charging station to form a stock prod system.

Abstract: The present invention provides a high voltage pulse generator used for deterring animals where the high voltage pulses are delivered to the animal through an electrical conductor that lays directly on the ground and is not insulated from the underlying ground system. The invention's high voltage pulse generator has a predetermined output impedance that is significantly lower than the impedance of an animal that may contact either the device's output or a conductor laying on the ground that is connected to the devices output. The invention's high voltage pulse generator also has a predetermined output impedance that is lower than the impedance of extremely long conductors in contact with the underlying ground system. This significantly low output impedance allows the device to deliver maximum output energy to the conductor in contact with the underlying ground system while maintaining high voltage and adequate energy levels to deliver an effective shock for deterring animals.

Abstract: The present invention provides a high voltage pulse generator used for deterring animals where the high voltage pulses are delivered to the animal through an electrical conductor that lays directly on the ground and is not insulated from the underlying ground system. The invention's high voltage pulse generator has a predetermined output impedance that is significantly lower than the impedance of an animal that may contact either the device's output or a conductor laying on the ground that is connected to the devices output. The invention's high voltage pulse generator also has a predetermined output impedance that is lower than the impedance of the conductor in contact with the underlying ground system. This significantly low output impedance allows the device to deliver maximum output energy to the conductor in contact with the underlying ground system while maintaining high voltage and adequate energy levels to deliver an effective shock for deterring animals.