Views: 23 Author: Site Editor Publish Time: 2022-11-22 Origin: Site
Thermistors can control current. With the development of technology, the types of thermistors continue to increase, which are suitable for the needs of various industries. They can monitor the degree of temperature and control the temperature of the equipment to operate in a reasonable range to ensure people's safety.
What are the current time characteristics of glass encapsulated NTC thermistors?
What is the use method of glass encapsulated NTC thermistor?
What effect does temperature compensation have on glass encapsulated NTC thermistors?
According to the current time characteristics, it can be applied to: time delay, surge current limit, surge suppression, etc. This is related to the heat capacity and dissipation constant of the NTC thermistor used. When the current passes, the circuit usually relies on the glass encapsulated NTC thermistor to heat. At some point, it will trigger a certain change in the circuit, depending on the application in which it is used.
Divide the voltage by connecting a fixed resistor and an NTC thermistor in series, and then connect the middle node of the two resistors to the AD sensing port of a microcomputer with a chip. The ADC port is connected to the AD sampling port of the single-chip microcomputer. Through the AD sampling function, the sampled voltage value is read, and then the voltage value, resistance value, and temperature value are correlated so that the temperature change can be reflected by the voltage value change. The ADC port in the schematic is connected to the PD6 port of the microchip of a chip, i.e. the analog input port is 6 and the PD5 port is used as the serial port output port for the sample output. The circuit on the hardware is relatively simple, only a minimum system is needed, and then an external 5K fixed resistor and NTC thermistor will do. Let's take a look at the implementation of the code: First, set the PD6 port as ADC function, and read the ADC sampling value through an interrupt. While during the glass encapsulated NTC thermistor will in a loop until the sending is completed. The serial port only uses the send function, so the serial port only needs to prepare the send port and set the baud rate.
The temperature compensation of the glass encapsulated NTC thermistor refers to the compensation of electronic components and electronic circuits whose characteristics change with temperature. For example, the operation of electronic circuits that use transistors or crystal oscillators will be slightly unstable due to temperature changes. At this time, by embedding a glass encapsulated NTC thermistor whose resistance value decreases as the temperature rises into the circuit, the stable operation of the circuit can be maintained.
Glass encapsulated NTC thermistors are glass-encapsulated, which can be used in harsh environments such as high temperatures and humidity. They are small in size, light in weight, and sturdy in structure. They are easy to install automatically and are suitable for office automation equipment. Our company produces glass encapsulated NTC thermistor chips. And glass encapsulated NTC thermistor components. Our company has professional technical personnel to provide customers with professional technical services. At the same time, we have a complete logistics system that can quickly deliver products to your hands. If you want to know more information, please click on our company website: https://www.cnjept.com/.
