Title:
A DEVICE FOR MONITORING OPERATION OF A SOLENOID VALVE AND A METHOD FOR MONITORING OPERATION OF A SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2023/281057
Kind Code:
A3
Abstract:
A device for monitoring operation of a solenoid valve, the device comprising: a circuit for supplying power to a coil (10) of a solenoid valve, comprising terminals (100A, 100B) connected in series with a power source, the terminals (100A, 100B) configured to be connected to the coil (10), a power supply switching transistor (101) and a measurement resistor (102); a microprocessor-based measurement (110) system configured to monitor supply current consumed by the coil (10) while the coil (10) is switched on, by measuring voltage at the measurement resistor (102), and to control the power supply switching transistor (101). The microprocessor-based measurement system (110) comprises an analogue-to-digital converter (111) comprising a consumed current measurement channel (CH2) connected to the measurement resistor (102) and a consumed current amplified measurement channel (CH3) connected to the consumed current measurement channel (CH2) via an adjustable amplifier (109); and is configured to: switch off the power supply switching transistor (101) when a voltage having a value higher than a threshold value is detected on the consumed current measurement channel (CH2); and control the gain (GAIN) of the adjustable amplifier (109) so that the signal at the input of the consumed current amplified measurement channel (CH3) is lower than the measurement range of this channel (CH3).
Inventors:
ZOLYNSKI JAROSLAW (PL)
CHCIUK MARCIN (PL)
ZYCIAK MARIUSZ (PL)
CHCIUK MARCIN (PL)
ZYCIAK MARIUSZ (PL)
Application Number:
PCT/EP2022/069069
Publication Date:
February 09, 2023
Filing Date:
July 08, 2022
Export Citation:
Assignee:
DTP SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA (PL)
International Classes:
H01F7/18; F16K37/00; G01R31/72; G05B19/042
Domestic Patent References:
| WO2017027792A1 | 2017-02-16 | |||
| WO2019043572A1 | 2019-03-07 |
Foreign References:
| US7746620B2 | 2010-06-29 |
Other References:
WEILER ALEXANDER ET AL: "Smart Solenoid Driver With Predictive Maintenance Reference Design", TI DESIGNS, 1 January 2017 (2017-01-01), pages 1 - 28, XP093005336, Retrieved from the Internet
Attorney, Agent or Firm:
KANCELARIA EUPATENT.PL SP. Z O.O. (PL)
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