Motor Starting PTC Thermistor Application Principle 2

For a specific electronic ballast or energy-saving lamp, the larger the PTC resistance value, the smaller the volume, and the lower the Curie temperature selected, the lower the power consumption and the shorter the preheating time; On the contrary, the higher the power consumption, the longer the preheating time.diode

Electronic energy-saving lamp preheating soft start circuit diagram

Usage Notes

1. The company has a wide variety of products, with products with Curie temperatures of 75 ℃, 85 ℃, and 105 ℃ currently being the most commonly used

2. In addition to the specifications and models listed in the table above, PTC thermistors of different sizes, switch temperatures, resistance values, and withstand voltages can be designed according to user requirements

PTC thermistor has obtained SGS test reports on the content of six toxic and harmful substances restricted by ROHS

Guidelines for Selecting PTC Thermistors for Electronic ballasts and Energy saving Lamp Soft Start Applications

Based on increasing the delay time, it can be achieved by increasing the Curie temperature and volume, reducing the resistance value, etc. The following basic principles are determined:

When energy-saving lamps are working, the temperature inside the lamp is relatively high. The Curie temperature of PTC thermistor cannot be too low, otherwise the delay time is too short and it cannot achieve preheating effect. The Curie temperature should be above 100 ℃;diode