A circuit for judging abnormal load conditions of a solenoid valve
CN224433594UActive Publication Date: 2026-06-30河南省保时安科技股份有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河南省保时安科技股份有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
Smart Images
Figure CN224433594U_ABST
Abstract
This utility model discloses a solenoid valve load abnormality judgment circuit, including a solenoid valve pulse circuit, a current signal acquisition circuit, and a solenoid valve drive circuit. The solenoid valve drive circuit is connected to the solenoid valve pulse circuit and the current signal acquisition circuit, respectively. The solenoid valve drive circuit includes a motor drive chip. The VM pin of the motor drive chip is connected to the solenoid valve pulse circuit, the GND pin of the motor drive chip is connected to the current signal acquisition circuit, the INB pin of the motor drive chip is connected to one end of resistor R25, the other end of resistor R25 is connected to the microcontroller as the control signal RB terminal, and the INA pin of the motor drive chip is connected to one end of resistor R37, the other end of resistor R37 is connected to the microcontroller as the control chip RA terminal.
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Citation Information
Patent Citations
Electromagnetic valve state detection method and device and electromagnetic valve
CN112361067A