Motor Starting PTC Thermistor Application Principle 3

When the starting circuit is a single capacitor, PTC thermistor has a high voltage resistance requirement, usually above 800V;

PTC thermistors with high resistivity can greatly improve reliability, and should be prioritized for use while meeting the starting characteristics;diode

4. It is necessary to consider the situation when starting at low temperatures. At low temperatures, the thermal balance resistance of PTC thermistor is correspondingly low, which may cause the lamp to not start;

5. The switching life of PTC thermistor should be greater than 100000 times;

6. The preheating time cannot be less than 0.4 seconds;

After startup, the power consumption of PTC thermistor should comply with relevant regulations.  diode