"Electric heater temperature regulator PCBA" refers to the electric heater temperature regulator printed circuit board assembly. The following will introduce it from the dimensions of its composition, working principle, function, application, etc.:

　　Basic composition

　　Main control chip: It is the core of PCBA, responsible for processing various signals and instructions, coordinating the work of various components, such as judging the current temperature state according to the signal from the temperature sensor, and deciding whether to control the work of the heating element.

　　Temperature sensor: It is used to monitor the temperature of the electric heater in real time, convert the temperature signal into an electrical signal and feed it back to the main control chip. Common ones include thermistors, thermocouples, etc.

　　Heating element control circuit: According to the instructions of the main control chip, the heating element is controlled to be on and off or its power is adjusted, so as to control the temperature of the electric heater, such as controlling the current of the heating wire through components such as relays and thyristors.

　　Power supply circuit: Provides a stable power supply for the entire PCBA, converts the input AC power into DC power suitable for the work of each chip and circuit.

　　Display circuit: It is usually composed of digital tubes, LCD screens, etc., used to display information such as current temperature, set temperature, working status, etc., which is convenient for users to understand and operate.

　　Operation buttons or knobs: used by users to input commands such as setting temperature and selecting working mode, and are interfaces for human-computer interaction.

　　Working principle

　　Temperature acquisition: The temperature sensor senses the temperature change of the electric heater in real time, and converts the temperature information into an electrical signal and transmits it to the main control chip.

　　Comparison and judgment: The main control chip compares the actual temperature signal received with the temperature value set by the user and calculates the temperature difference.

　　Control output: According to the temperature difference, the main control chip sends instructions to the heating element control circuit. If the actual temperature is lower than the set temperature, the control circuit will energize the heating element to increase the heat output; conversely, if the actual temperature is higher than the set temperature, the control circuit will reduce the power of the heating element or cut off the power supply, stop heating, and gradually reduce the temperature, so that the temperature of the electric heater remains near the set value.

　　Main functions

　　Accurate temperature control: Through the coordinated work of the temperature sensor and the main control chip, the temperature of the electric heater can be accurately controlled to meet the temperature accuracy requirements of different application scenarios.

　　Temperature setting: The user can easily set the required temperature value by operating the button or knob, and the PCBA will adjust the temperature according to the set value.

　　Overheat protection: When the temperature of the electric heater exceeds the safety threshold, the PCBA will automatically cut off the heating power supply to prevent safety accidents such as fire and protect the safety of equipment and personnel.

　　Temperature display: Real-time display of the current temperature and set temperature of the electric heater, allowing users to intuitively understand the temperature status.

　　Multiple working modes: Some electric heater temperature regulators PCBA also have multiple working modes, such as constant temperature mode, timing mode, energy-saving mode, etc., to meet the different needs of users.

　　Application areas

　　Home heating equipment: such as electric heaters, electric blankets, wall-mounted boilers, etc., provide a comfortable heating environment for the family through precise temperature control.

　　Industrial heating equipment: In industrial production, it is used for temperature control of various heating furnaces, drying equipment, hot presses and other equipment to ensure the stability of the industrial production process and product quality.

　　Commercial places: such as central air-conditioning systems and floor heating systems in shopping malls, hotels, offices, etc., control the temperature through PCBA to create a comfortable indoor environment.

　　Laboratory instruments: In the laboratory, it is used to control the temperature of various heating equipment and experimental instruments, such as constant temperature incubators, heating plates, muffle furnaces, etc., to ensure the accuracy of experimental results.