Loading
Log in to myMicrochip to access tools and benefits. Sign up in just one minute.
Maximize Your Experience: Reap the Personalized Advantages by Completing Your Profile to Its Fullest! Update Here
Stay in the loop with the latest from Microchip! Update your profile while you are at it. Update Here
Complete your profile to access more resources.Update Here!
Grid-Connected Solar Microinverters
Renewable resources, especially solar power and Photovoltaic (PV) systems, have gained great visibility during the past few years as convenient and promising renewable energy sources. Solar power systems offer several benefits, such as:
- Clean and renewable energy that replaces power produced by coal, oil and nuclear power
- Reduction/elimination of electric bills
- Ample resources since silicon for manufacturing PV panels is the second most abundant element on Earth
- The ability to provide power to remote locations
Our grid-connected solar microinverter reference design, featuring a dsPIC® Digital Signal Controller (DSC), has a maximum power output of 215W and provides a high efficiency of ~94% at nominal conditions (230V AC). We also offer a portable solar charging reference design based on an 8-bit PIC16F microcontroller (MCU) that can charge a 24V battery system from a 130W/12V solar panel. This design can provide 1.3 kWh of energy in 10 hours of charging time.
Solar Microinverter Block Diagram
Our Grid-Connected Solar Microinverter Reference Design demonstrates the flexibility and power of SMPS dsPIC DCS in grid-connected solar microinverter systems. This reference design has a maximum output power of 215W and ensures maximum power point tracking for PV panel voltages between 20V to 45V DC. Its high efficiency was achieved by implementing a novel interleaved active-clamp flyback topology with Zero Voltage Switching (ZVS).
Solar MPPT Battery Charger for the Rural Electrification System (AN2321)
This application note describes how to develop a portable solar charging system for use in a rural area.
Would you like to learn more about the advantages of switching to digital power supplies? Download our Features, Value and Benefits of Digital Control for Power Supplies white paper.
- dsPIC33A DSCs - 200 MHz
- dsPIC33C DSCs - 100 MHz
Similar Devices
Loading
Similar Devices
Legend:
IC = Input Capture, OC = Output Compare, MCCP = Multiple Capture/Compare/PWM, SCCP = Single Capture/Compare/PWM, SMPS PWM = Power Supply Pulse Width Modulation
Voltage Regulators
Operational Amplifier
- MCP6022 – 10 MHz, 1 mA, low-power dual op amp
Temperature Sensor
- MCP9700A – Low-power linear active thermistor IC, analog output
MOSFET Driver
- MCP14E4 – 4.0A dual high-speed power MOSFET driver with enable function for each output