Circuit configuration for the joint pulse width modulation of valves with quenching
US8559153B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2007 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1888
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit configuration is provided for switching valves with joint pulse width modulation and quenching, having a first switch to which a pulse width modulation is applied for controlling magnetic fields of a plurality of valve inductors connected to the circuit configuration; a plurality of second switches by which the circuit configuration is able to be switched between a slow and a rapid quenching of the magnetic fields of the inductors; and a diode which is in the conducting state when the second switches are in a switching state for a slow quenching of the magnetic fields of the inductors, and which is no longer parallel to the inductors when the second switches are in a switching state for a rapid quenching of the magnetic fields of the inductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.