Micro Converter System

Micro converters are used in lower power applications and installed on each PV panel. This approach provides the advantage of an individual optimized MPPT (hence this configuration is also called DC-optimizers). The DC-DC converter converts the PV panel output DC voltage up or down and it is then fed to a "central" DC-AC inverter stage.


Distributed Maximum Power Point Tracking System (D-MPPT)


In low power (190W~500W) distributed-MPPT systems, such as the micro inverter and micro converter architectures, the MPPT is performed at each PV module. These low power systems can be integrated into the frame of the PV module. The micro inverter is often called an "AC-module" and the micro converter is often called a "DC-Optimizer."

Design Advantages

  • IGBTs and MOSFETs featuring high current handling capability and low conduction and switching loss.
  • Optically isolated gate drivers with wide operating voltage range and high common-mode transient immunity.
  • High-voltage gate drivers with excellent noise immunity, high dv/dt and low power consumption.
  • Optimized for Solar Inverter, UPS, Welder and SMPS (Switch Mode Power Supply) applications, Fairchild broad family of IGBTs offer low VSAT and EOFF, and enable systems to achieve high efficiency with less EMI and better control.
  • Our mWattSaver fly back controllers provide auxiliary bias power supplies with industry-lowest standby power consumption.
Application NoteDescription
AN-6206Primary-Side Synchronous Rectifier (SR) Trigger Solution for Dual-Forward Converter
AN-6208Secondary-Side Synchronous Rectifier (SR) for LLC Resonant Converter Using FAN6208
AN-4150Design Guidelines for Flyback Converters Using FSQ-Series Fairchild Power Switch (FPS™)
AN-9034Power MOSFET Avalanche Guideline
AN-6067Design and Application of Primary-Side Regulation (PSR) PWM Controller
AN-8022TinyCalc™ Users Guide
AN-6069Application Review and Comparative Evaluation of Low-Side Gate Driver
AN-400ALow-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
AN-7019Limiting Cross-Conduction Current in Synchronous Buck Converter Designs
AN-6083Highly Integrated, Dual-PWM Combination Controller
AN-6076Design and Application Guide of Bootstrap Circuit for High-Voltage Gate-Drive IC
AN-6086Design Consideration for Interleaved Boundary Conduction Mode PFC Using FAN9611 / FAN9612
AN-4151Half-Bridge LLC Resonant Converter Design Using FSFR-Series Fairchild Power Switch (FPS™)
AN-9725Robust Body Diode Characteristics of the Latest Power MOSFETs, UniFET™ II for Resonant Converters
AN-7536FCS Fast Body Diode MOSFET for Phase-Shifted ZVS PWM Full Bridge DC/DC Converter
AN-7017Reducing Power Losses in MOSFETs by Controlling Gate Parameters
AN-8024Applying Fairchild Power Switch (FPS™) FSBH-series to Standby Auxiliary Power Supply
AN-4153Designing Asymmetric PWM Half-Bridge Converters with a Current Doubler and Synchronous Rectifier using FSFA-Series Fairchild Power Switches (FPS™)
AN-9017Manufacturing Technology of a Small Capacity Inverter Using a Fairchild IGBT
AN-7517Practical Aspects of Using PowerMOS Transistors to Drive Inductive Loads
AN-6003"Shoot-through" in Synchronous Buck Converters
AN-7531Implementing A Primary Side Peak-Current-Mode Half-Bridge Converter
AN-7505Improved IGBTs with Fast Switching Speed And High-Current Capability
AN-7512Parallel Operation Of Insulated Gate Transistors
AN-6753Highly Integrated Green-Mode PWM Controller