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Micro inverter

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Block diagram

Micro inverter

Block diagram

Overview

Our integrated circuits and reference designs help you accelerate development of solar micro inverters, improving power density and efficiency while providing real-time communication and monitoring.

Design requirements

    Micro inverters require design expertise to achieve:

  • High-power conversion efficiency to reduce self-heating.
  • High-power density to ensure a small form-factor.
  • Real-time communication and monitoring.
  • Safe operation of high-voltage outputs.
Explore applications similar in function and design

Block diagram

Find products and reference designs for your system.

Micro inverter

DC/DC power stage DC/DC power stage Temp sensor Temp sensor Gate drivers Gate drivers Boost converter Boost converter PWM PWM Flyback, Push Pull or LLC Flyback, Push Pull or LLC GaN GaN Grid connection Grid connection PV input 20-60 V PV input20-60 V Digital processing Digital processing MCU MCU SVS SVS RTC RTC IO voltages IO voltages Internal rail Internal rail Non-isolated DC/DC power supply Non-isolated DC/DC power supply DC/DC DC/DC LDO LDO Grid-side isolated AC/DC power supply Grid-side isolated AC/DC power supply Isolated AC/DC Isolated AC/DC PV-side DC/DC power supply PV-side DC/DC power supply DC/DC DC/DC Isolated DC/DC power supply Isolated DC/DC power supply Isolated DC/DC Isolated DC/DC Isolated power (for Isolated gate drivers) Isolated power(for Isolated gate drivers) OR OR Wireless interface Wireless interface Wi-Fi Wi-Fi ZigBee ZigBee Sub-1 GHz Sub-1 GHz Bluetooth Bluetooth PV input 20-60 V PV input20-60 V Grid connection Grid connection Input current & voltage sense Input current & voltage sense Amp Amp Amp Amp Current sensor Current sensor Current Current Voltage Voltage Bus current & voltage sense Bus current & voltage sense Amp Amp Amp Amp Current sensor Current sensor Current Current Voltage Voltage Output current & voltage sense Output current & voltage sense Amp Amp Amp Amp Isolatedcurrent sensor Isolatedcurrent sensor Current Current Voltage Voltage 4 4 Relay control power stage Relay control power stage Relay driver Relay driver Relay Relay Signal isolation Signal isolation Data isolation Data isolation Optional Optional Wired interface Wired interface PLC PLC RS-232 RS-232 RS-485 RS-485 DC/AC power stage DC/AC power stage Temp sensor(s) Temp sensor(s) Gate drivers Gate drivers Gate drivers Gate drivers Gate drivers Gate drivers Gate drivers Gate drivers Totem pole or Full-bridge inverter Totem pole or Full-bridge inverter PWM PWM PWM PWM PWM PWM PWM PWM GaN GaN GaN GaN GaN GaN GaN GaN

Wireless interface

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Most modern residential solar inverters include a communication option to enable remote monitoring and control of the owner's system. In order to simplify installation, Wi-Fi is a popular option. Modern wireless SoC can enable quick development and deployment of compliant 802.11 stacks, and offer multiple paths to FCC certification.

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Wireless connectivity (6)
Sub-1 GHz wireless MCUs
  • CC1352P7—SimpleLink™ Arm® Cortex®-M4F multiprotocol sub-1 GHz and 2.4-GHz wireless MCU integrated power amp
    Data sheet: PDF | HTML
Wi-Fi products
  • CC3200—SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 2 TLS/SSL and 256kB RAM
    Data sheet: PDF | HTML
  • CC3100—SimpleLink™ 32-bit Arm Cortex-M3 Wi-Fi® wireless network processor
    Data sheet: PDF | HTML
  • CC3200MOD—SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® and Internet-of-Things wireless module
    Data sheet: PDF | HTML
Low-power 2.4-GHz products
  • CC2652P7—SimpleLink™ Arm® Cortex®-M4F multiprotocol 2.4-GHz wireless MCU, 704-kB Flash, integrated power amp
    Data sheet: PDF | HTML
  • CC2651R3—SimpleLink™ 32-bit Arm® Cortex®-M4 single-protocol 2.4-GHz wireless MCU with 352-kB flash
    Data sheet: PDF | HTML
Software development
Software development kit (SDK)
Hardware development
Development kit
  • LP-EM-CC1354P10 — CC1354P10 LaunchPad™ development kit for SimpleLink™ Sub-1 GHz and 2.4GHz wireless microcontroller
  • LP-CC1311P3 — CC1311P3 LaunchPad™ development kit for SimpleLink™ sub-1-GHz wireless MCU
  • LAUNCHXL-CC1312R1 — CC1312R LaunchPad™ development kit for sub-1-GHz SimpleLink™ wireless MCU
Evaluation board
  • LP-CC1352P7 — CC1352P7 LaunchPad™ development kit for SimpleLink™ multi-band wireless MCU

Technical documentation

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Type Title Date
Technical article Stay ahead of the energy storage and solar game with bidirectional PFC and hybrid PDF | HTML 02 Aug 2023

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