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Microinverter

Overview

Solutions

HW Evaluation Tools

Documentation

Tools and Software

Key Products

Microinverters are often used as an alternative to string inverters to perform the DC to AC power conversion at solar panel level in residential photovoltaic systems. A solar micro inverter helps maximize energy yield and mitigate problems related to partial shading, dirt or single PV panel failures. A microinverter is composed of a DC-DC converter implementing Maximum Power Point Tracking (MPPT) and a DC-AC inverter to shape current and voltage for injection into the AC grid. Data – including voltage, current and power generated - from all microinverters in the installation are collected and logged by a concentrator and then dispatched to a local or remote monitoring and control access point. Read more

Auxiliary SMPS

Standard Serial EEPROM

STM32F0

N-channel STripFET > 30 V to 350 V

800V to 1200V Ultrafast Rectifiers

800V to 1200V Ultrafast Rectifiers

Standard Serial EEPROM

Auxiliary SMPS

Solar Inverters (String and Central)

Solar Inverters (String and Central)

Our products for efficient microinverters

Our solutions and ICs for your microinverter design include power MOSFETs, high-voltage, galvanically isolated gate drivers and high-voltage silicon-carbide (SiC) diodes. Combined with high-performance STM32 microcontrollers, ST can provide a set of dedicated peripherals to help implement complex power conversion control algorithms. Energy metering ICs, wireless and wired connectivity solutions including multi-standard Power Line Communication (PLC) modems complete this portfolio.

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	Resource title		Latest update

Application Notes (5 of 16)

Design Notes & Tips (1)

	Resource title		Latest update
PDF	DN0010 Adapting ST power line modem evaluation boards to communicate over a DC bus 1.2		19 Mar 2021	19 Mar 2021 DN0010 Adapting ST power line modem evaluation boards to communicate over a DC bus 1.2

Presentations (2)

	Resource title		Latest update
PDF	EEPROM 2 Mbit highest density memories 1.0		19 Mar 2021	19 Mar 2021 EEPROM 2 Mbit highest density memories 1.0
PDF	Microinverter_marketing_pres 2.2		15 Jun 2018	15 Jun 2018 Microinverter_marketing_pres 2.2

Flyers (3)

	Resource title	Latest update
PDF	10.2020	18 Mar 2021	18 Mar 2021 10.2020
PDF	60, 80 and 100 V STripFET™ F7 MOSFETs 1.0	26 Mar 2021	26 Mar 2021 60, 80 and 100 V STripFET™ F7 MOSFETs 1.0
PDF	ST Diodes Finder : the new app for Android and iOS 2.0	18 Mar 2021	18 Mar 2021 ST Diodes Finder : the new app for Android and iOS 2.0

Brochures (2)

	Resource title		Latest update
PDF	Products and solutions for solar energy 1.0		15 Jun 2018	15 Jun 2018 Products and solutions for solar energy 1.0
PDF	STM32F3 series - Mainstream 32-bit MCUs 17.09		05 Dec 2018	05 Dec 2018 STM32F3 series - Mainstream 32-bit MCUs 17.09

Magazine Articles (1)

	Resource title		Latest update
PDF	Innovative architectures for solar energy applications: st microinverter system solution 1.0		15 Jun 2018	15 Jun 2018 Innovative architectures for solar energy applications: st microinverter system solution 1.0

All tools & software

Finders Apps

Part number	Status	Description	Type	Supplier
ST Diode Finder	Active	Diode product finder application for Android and iOS	Finders Apps	ST	ST Diode Finder Description: Diode product finder application for Android and iOS
STPOWER MOSFET Finder	Active	STPOWER MOSFET finder mobile app for tablets and smartphones	Finders Apps	ST	STPOWER MOSFET Finder Description: STPOWER MOSFET finder mobile app for tablets and smartphones

Software Development Tools

Part number	Status	Description	Type	Supplier
ST MCU Finder	Active	STM32 and STM8 product finder for mobile devices and desktops	STM32 Utilities	ST	ST MCU Finder Description: STM32 and STM8 product finder for mobile devices and desktops

	Resource title	Latest update
PDF	AN4070 250 W grid connected microinverter 1.0	13 Sep 2018	13 Sep 2018 AN4070 250 W grid connected microinverter 1.0
PDF	AN604 Calculation of conduction losses in a power rectifier 3.2	24 Mar 2021	24 Mar 2021 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode 1.0	24 Mar 2021	24 Mar 2021 AN4021 Calculation of reverse losses in a power diode 1.0
PDF	AN4381 Current sharing in parallel diodes 1.0	24 Mar 2021	24 Mar 2021 AN4381 Current sharing in parallel diodes 1.0
PDF	AN4653 Cycling endurance and data retention of high density EEPROM based on CMOS F8H process 1.0	24 Mar 2021	24 Mar 2021 AN4653 Cycling endurance and data retention of high density EEPROM based on CMOS F8H process 1.0
PDF	AN3432 How to choose a bypass diode for silicon panel junction box 1.0	13 Sep 2018	13 Sep 2018 AN3432 How to choose a bypass diode for silicon panel junction box 1.0
PDF	AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1	24 Mar 2021	24 Mar 2021 AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
PDF	AN4242 New generation of 650 V SiC diodes 2.0	03 Apr 2020	03 Apr 2020 AN4242 New generation of 650 V SiC diodes 2.0
PDF	AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0	24 Mar 2021	24 Mar 2021 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0	24 Mar 2021	24 Mar 2021 AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
PDF	AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6	24 Mar 2021	24 Mar 2021 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1	24 Mar 2021	24 Mar 2021 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN4068 ST7580 power line communication system-on-chip design guide 2.0	19 Mar 2021	19 Mar 2021 AN4068 ST7580 power line communication system-on-chip design guide 2.0
PDF	AN4390 ST’s MOSFET technologies for uninterruptible power supplies 1.1	17 Mar 2021	17 Mar 2021 AN4390 ST’s MOSFET technologies for uninterruptible power supplies 1.1
PDF	AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1	13 Sep 2018	13 Sep 2018 AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1
PDF	AN869 Tj max limit of Schottky diodes 2.2	24 Mar 2021	24 Mar 2021 AN869 Tj max limit of Schottky diodes 2.2