Semiconductor vendors attack PV micro-converter

The Micro Converter has become a firefighter. After semiconductor manufacturers such as STMicroelectronics, On Semiconductor, and Infineon introduced microconverter reference designs, NXP has also Announced joining the war situation, and plans to publish the micro-converter reference design in the second half of the year, so that the market competition of existing solar micro-switches is becoming more intense.

According to Jin Yujie, chief marketing officer of NXP Semiconductors Greater China, NXP is a new supplier to the solar inverter market. The current layout is mainly targeted at DC-DC product lines such as MPPT chips and micro-converters.

According to Jin Yujie, marketing director of NXP Greater China, a Central Inverter with a micro-converter or Power Optimizer can immediately increase the amount of power generated by the solar system and is an indispensable component. As a result, many semiconductor companies have been eager to compete, and the company has also completed the reference design and development of its micro-converter, which is expected to come out in the second half of this year.

Since solar energy is a new industry, most of the small and medium-sized solar energy suppliers that are entering the market have no relevant development experience. Therefore, the demand for reference designs is very strong. In particular, China's mainland power supply manufacturers have the highest degree of dependence and become key indicators for procurement. Wafers also consider the reference design as an important product strategy.

Compared to STMicroelectronics, ON Semiconductor, and others, NXP started late in the solar micro-converter market and is a market for rapid card market. In addition to the micro-converter reference design, it also introduces innovative technologies to enhance product competitiveness. Its core technology “Delta conversion topology” can average the voltage difference between solar panels, and distributes the voltage difference between adjacent panels evenly through the principle of energy exchange to achieve a significant increase in output power.

In addition, NXP's upcoming micro-converters also have low energy consumption in the conversion process, and have monitoring capabilities that improve system reliability.

Jin Yujie expects that the solar inverter market will develop in three stages, namely, centralized inverters, micro-converters and micro-inverters. In the future, the centralized type will gradually replace the micro-inverters with higher power generation. However, due to the high cost of the micro-inverter architecture, the current centralized inverter can only be installed with micro-converters to quickly improve the power generation, which will stimulate the demand for micro-transformers. Therefore, it has become the main product line of NXP's layout in the solar inverter market.

In addition to deploying the microconverter product line, NXP is also developing a series of promising solar semiconductor products, such as Microcontrollers (MCUs) that perform Maximum Power Tracking (MPPT), wireless communication between solar panel communications, and Power Line Communication (PLC) Wafers, High Voltage Drivers for DC-to-AC Converters, DC-DC Converters, Gallium Nitride (GaN) Metal Oxide Semiconductor Field Effect Transistors (MOSFETs), etc. To strengthen the competitiveness in the field of solar semiconductors.

The investment in R&D of more emerging technologies in various wafer vendors to snatch the solar energy market is expected to make the competition in the solar semiconductor market more fierce.

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