Patent ID: 7582988
Filing Date: 2009-09-01
Classification: H03K,H05C

Abstract:
1. An electric fence energizer for use with an alternating current power source for continuously applying electrical energy pulses including at least lethal pulses to a fence without failing due to resistive loads contacting the fence comprising: a step-up transformer having a primary winding and a secondary winding, the secondary winding being adapted for connection to the fence; a storage capacitor sharing a connection with both the primary winding of the transformer and an input being adapted for connection to the power source; a switch connected to the primary winding of the transformer, the switch being operative to supply voltage stored in the storage capacitor across the primary winding when the switch is closed; and a timing circuit adapted to periodically trigger the switch so as to provide alternating on-periods and off-periods for the lethal pulses being delivered from the step-up transformer to the fence.