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National Semiconductor Solar Bill Mazotti chip business unit director, said: "National Semiconductor particularly for the production of micro-inverter manufacturers provide a range of variety of different types of analog and mixed-signal chips, so that they can use to meet renewable energy certificates Standard high-performance chip development life cycle extremely long micro-inverter. National Semiconductor continues to expand solar system solutions for applications, the new series of chips that can support power optimizers, micro-inverters and inverters and so on. "
The series new SolarMagicIC chip is the industry's first meet photovoltaic renewable energy certification standards. Where each product is carefully designed to ensure that it can be very different on the roof contour cold harsh environment to work, and each chip have passed a rigorous stability testing to ensure that their performance is more reliable, thus meet the operational requirements of the solar system.
In addition, the chips extremely long life cycle, for up to 25 years life expectancy of PV modules. Built within the solar system SolarMagic chip can improve system generating capacity, reduce unit cost of power generation and ensure that junction box and the other sealing devices more secure. When used independently, the chips can be sure that micro grid tie inverter or power optimizer can provide high gate drive voltage and current.
MPPT controller: National Semiconductor offers two models were SM72441 and SM72442 programmable maximum power conversion tracking (MPPT) controller, allowing PV systems distributed power optimizers can add maximum power conversion tracking feature. Both chips have a variety of different functions, including voltage and current diagnostics, four built-in switch boost / buck converter control, overvoltage / overcurrent protection and I2C interface functions.
Gate drive: National Semiconductor's SM72295 full-bridge gate driver and SM72482 dual 5A compound gate driver can support power optimizers, micro-inverters and charge controllers within the power processing circuitry. In addition, both drivers can drive four full-bridge configuration using discrete MOSFET, while each product is built-in overcurrent detection of high-end amplifiers, these amplifiers have a higher current source / sink.
Regulators: National Semiconductor specifically for drive power optimizers, modified sine wave inverter and charge controllers for various bias supply system provides constant on-time SM72485 switching regulator, which is characterized by a high operating voltage 100V, and power conversion efficiency is very high. National Semiconductor also offers to reduce system power consumption SM72238 5V low dropout regulator.
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