SNOAAA8 April   2025 LM74610-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 What is MLPE
    2. 1.2 Why, When, Where Needs MLPE
    3. 1.3 What is Solar Power Optimizer
    4. 1.4 Solar Power Optimizer Working Principle
    5. 1.5 Output Bypass Function of Solar Power Optimizer
  5. 2Traditional Designs of the Bypass Circuit
    1. 2.1 Design 1 - Using P-N Junction Diode or Schottky Diode
    2. 2.2 Design 2 - Using MOSFET
  6. 3New Design of the Bypass Circuit
    1. 3.1 Requirements on Bypass Circuit
    2. 3.2 Using Ideal Diode Controller LM746x0-Q1
    3. 3.3 Challenges of Using Ideal Diode Controller
    4. 3.4 Working Principle of LM746x0-Q1 Reverse Voltage Range Extension
  7. 4Bench Test and Result
  8. 5Summary
  9. 6References

1.3 What is Solar Power Optimizer

Figure 1-10 shows the PV system with solar power optimizer.

PV System with Solar Power Optimizer
A. Solar power systems deploy optimizers based on actual needs. Optimizers are not always required for each PV panel.
Figure 1-10 PV System with Solar Power Optimizer

The optional solar power optimizer can be added into a solar power system based on actual needs. The optional solar power optimizer is not a type of inverter. This helps max out the solar system by module-level MPPT, making this a compatible complement with the existing string inverters (global MPPT). So, a solar power system with optimizers can have a more efficient DC output than one without. This can be considered a compromise between micro-inverter and string inverter. The solar power optimizer can be installed on individual solar panels like the micro inverter but the function has nothing to do with converting DC to AC.