The L6562 is a current mode PFC controller operating in transition mode (TM). Pin to pin compatible with the predecessor L6561, which offers better performance. All functions 1% (@tJ =25˚C) internal reference voltage To disable the feature DIP - 8 / SO - 8 packaging ECOPACK ® -600/+800mA totem grid driver with UVLO pull-down and …
L6382D5 is suitable for embedded PFC and half-bridge microcontrolled electronic ballasts. The L6382D5 includes four MOSFET driver stages (for PFC, half-bridge, and preheated MOSFET) and a power management unit (PMU), which also has a reference that can power the microcontroller in any situation. In addition to improving application efficiency, the L6382D5 also reduces material costs …
Troubleshooting logic of motor abnormal heating: 1. Check whether the motor generation setting is correct. 2. Check whether the motor is learning parameters. 3. Whether the frequency converter always runs at low speed, 4. Whether the motor is a inverter motor, 5. Whether the load is too large, 6. Is the three-phase motor balanced? 7. …
Frequency converter common fault analysis -- abnormal heating of the motor Read More »
Wireless lapel microphone, a type of wireless microphone, has become popular recently. It is a small, small and portable microphone, usually worn in the location of the user's clothing lapel. It can be freed from the cable, and the user can do whatever he or she wants without worrying about the sound. It is generally …
4. Fixed resistance detection The actual resistance value can be measured by connecting the two gauges (regardless of positive or negative) with the pins at both ends of the resistance. In order to improve the measurement accuracy, the appropriate range should be selected according to the size of the nominal value of the resistance to …
What is the role of inductance Many people do not know the main three functions of inductance, the following small series to specific. 1, block traffic straight For dc, inductance is equivalent to a short circuit, while for AC, inductance is a hindrance, the higher the ac frequency, the greater the inductance hindrance. 2. Transformer …
What is the function of inductance? How to convert inductance units Read More »
Working principle of semiconductor refrigeration sheet In principle, the semiconductor chip is a heat transfer tool. When an electric current flows through a thermocouple formed by an N-type semiconductor material and a P-type semiconductor material, heat transfer occurs between the two ends. Heat is transferred from one end to the other, resulting in a temperature …
1. Factors affecting resistivity Resistivity is a physical quantity used to express the electrical resistance of various substances. The ratio of the product of the resistance and cross-sectional area of the component made of a substance (20°C at room temperature) to its length is called the resistivity of the substance. The unit of electrical resistivity …
What are the factors that affect resistivity and how to calculate resistivity Read More »
