Constant temperature source chip (IC) (patented product)

A constant temperature source chip (IC) consists of a chip, a heat transfer guide plate, three leads, and an external package. The chip is connected to three leads, placed on a heat transfer guide plate, and packaged externally to hold the chipThe three leads connected to the heat transfer guide plate and the chip have two output terminals connected to the power supply, and the other output terminal connected to an external temperature preset resistor. The other end of the resistor is also connected to the power supply. The external temperature preset resistor is a variable resistor. The chip consists of a temperature deviation measurement bridge, an operational amplifier, a voltage regulator circuit, and a heat regulation circuit. The temperature deviation measurement bridge is connected to the operational amplifier, the operational amplifier is connected to the heat regulation circuit, and the voltage regulator circuit is connected to the temperature deviation measurement bridge and the heat regulation circuit.

When in use, the utility model is installed on a reference device or a sensing device that requires constant temperature conditions, or in the same isothermal body, and any constant temperature value in the range of about 45 ℃~125 ℃ can be obtained by adjusting the external temperature preset resistance 4. When supplemented with semiconductor refrigerators and other means, the low constant temperature can reach below 0 ℃.

Due to the integration of temperature measurement, deviation amplification, heating, feedback, etc. of chip 2 into the same chip, the thermal response speed is fast, and the error caused by the temperature coefficient of the components inside chip 2 is not significant.

Network optimization materials:

shouldtemperature controlThe instrument converts the controlled temperature change into a change in indoor space pressure or capacity based on the temperature packet and capillaries of the sealed internal temperature probe steam parameters, achieving the preset temperature value,Professional temperature controller manufacturerAccording to the elastic element and fast instantaneous mechanism, the circuit breaker is automatically turned off to achieve the goal of intelligent control system temperature. It consists of three parts: a temperature probe, a temperature setting main body, and a toggle switch or automatic air door for opening and closing. The working pressure type temperature controller is more suitable for refrigeration machinery (such as electric household refrigerators, etc.) and heating facilities. The application scope of temperature controllers is very diverse, according toBrand temperature controller manufacturerDifferent types of temperature controllers are used in various products such as electrical appliances, motors, refrigerators, or heating systems