Device for guarding mispolarization of inductive loads
US6127745A · kind A · utility
5Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for switching inductive loads includes a series circuit which is connected between positive and negative poles of voltage source and has a load and a switch associated with the load. A free-running diode is connected parallel to the load. A guard circuit for guarding against mispolarization of the voltage source has an electronic switch connected in series with the free-running diode. The electronic switch is made conducting through a charge pump triggered by an oscillator, given correct polarization of the voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.