Intelligent and energy storage integrated led street light lamp aluminium 5 years warranty
 

In fact, for streetlights, greater efficiency and longer life are essential to keeping costs down. Switching power supplies designed to power LED lights must also be efficient and durable to ensure that they have the same maintenance-free life as LED lights. Resonant converters are one of the most popular power topologies here, as their performance leads to higher power efficiency and reduced EMI compared to previous power topologies. Soft switch is an important characteristic of resonant converter. But the use of parasitic bodydiodes in resonant converters can sometimes cause system failures. The charge stored in the parasitic diode must be completely removed to avoid large current and voltage surges, including high dV /dt and di/dt in the topology. Therefore, the key parameters of power MOSFET, such as Qrr and reverse recovery DV/DT, will directly affect the dynamic performance of resonant converter.