NCT7491RQR2G

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NCT7491RQR2G Application Field and Working Principle

The NCT7491RQR2G is a high-performance, low-power and small size component engineered for thermal management. It’s a system that uses an analog processor to provide temperature measurements and regular thermal control. This system was developed with an aim to monitor and regulate the temperature in the environment thereby providing a better user experience and improved comfort in the interior of the equipment. The main components in the NCT7491RQR2G system are a thermistor, temperature sensor and an embedded controller.

Applications

The NCT7491RQR2G is mainly used in various applications, such as air conditioners, refrigerators and other equipment related to home appliances. It is widely utilized in the automotive and industrial market. In the aviation, space and military fields, it plays an important role due to its ability to handle high-reliability activities.

It is also used in industrial fans, ventilation systems, infrared heaters, clothes dryers and heat pumps. The performance of these systems is improved by the temperature measurements and regular thermal control provided by the NCT7491RQR2G. Additionally, the system can provide voltage regulators and relay control.

Working Principle

The NCT7491RQR2G system operates in two modes: the direct alarm and the temperature regulation mode. In direct alarm mode, the thermistor’s temperature output is read directly, and if it reaches a preset maximum temperature, an alarm will be triggered. In temperature regulation mode, the temperature is set by the temperature sensor, and the relevant relay control is triggered if the temperature is more than the preset value.

It has two on-board temperature sensors, one thermistor and one ADC. The thermistor is used to measure ambient temperature, and its output is converted digitally via the ADC. The values obtained from the ADC are sent to the processor for further calculation. The processor then compares this value with the threshold temperature and triggers the relevant relay control accordingly. The system has built-in timers, which can be enabled or disabled based on the type of application.

The NCT7491RQR2G can be used for programmable temperature control, direct or analogue reading temperature control, direct alarm or over temperature alarm, temperature sensing and regulation, and relay control. It is a compact and efficient device equipped with a variety of features and an intuitive user interface, making it a great choice for thermal management in a variety of applications.

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