Hydraulic valve control circuit and method for checking the function of a hydraulic valve control circuit
US8189316B2 · kind B2 · utility
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2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 2009 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Apr 15, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B20/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic valve control circuit of a hydraulic valve comprises an external voltage supply, an output stage having a voltage supply input and at least one output configured to actuate an actuator of the hydraulic valve, an overcurrent protective device disposed in a path between the external voltage supply and the voltage supply input, an enable input configured to activate and deactivate the output stage, and a switch configured to connect the at least one output to a fixed potential when the output stage is deactivated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.