China KP1274FCSPA Manufacturer, Supplier, Factory

We provide diversified integrated chip solutions such as AC-DC, DC-DC, LDO and current limiting switch for smart meter applications to meet the high reliability and high performance requirements of meter applications.

An AC-DC Constant Current Chip is an integrated circuit designed to provide a stable current output while converting alternating current (AC) input to direct current (DC). These are commonly used in LED drivers and low-power lighting systems.

This technological leap demonstrates its advantages in wide-voltage scenarios. When the input voltage jumps from 90V to 264V, Huqin's ACDC chip can dynamically adjust the internal electromagnetic structure to keep the noise attenuation rate consistently above 42dB. However, when the voltage of a certain competing product's DCDC solution undergoes a sudden change, the filtering effect will decline by 15dB. This is like teaching the chip "metamorphosis". Test engineer Xiao Zhang pointed at the spectrum analyzer and said, "Our chip can reconstruct the electromagnetic topology in real time based on the interference frequency. This kind of intelligent response is something that discrete solutions can never catch up with."

DC-DC constant current chips have been in high demand in recent times, owing to their numerous benefits. These embedded systems are well-equipped to handle a wide range of applications, such as automotive, IoT, medical devices, and telecommunications. In this article, we will discuss some of the significant advantages of DC-DC constant current chips.

The KP2591(A) is a resonant switching power controller based on half-bridge LLC resonant converter, which integrates half-bridge driver with 50% duty cycle, and the maximum operating frequency is up to 350kHz.

​For high power density, high power output fast charge needs, Sillij launched a high-performance PFC+LLC combination controller SY5055, which sealed the front BOOST PFC and the rear LLC controller, making the peripheral circuit more concise, saving costs and also conducive to improving the power density of the entire power solution.