Apparatus and method for control of electric fence
US5790023A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Jul 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05C1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric fence controller and method of controlling the energization of an electric fence. The controller includes a digital timing circuit which generates a digital signal to control the activation of a switching circuit for applying energy from an external power source across the primary winding of a transformer. The power source may be an alternating current source, the cycles of which are located by the timing circuit which activates the switching circuit after a selected number of cycles are counted driving an off-time period. Alternatively, the power source may be a direct current source and the timing circuit may include an oscillator and a counter for counting the number of oscillations and generating a digital signal which activates the switching circuit during an on-time period corresponding to a first selected number of oscillations, the switching circuit being inactive during an off-time period corresponding to a second selected number of oscillations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.