光伏供电电路及其控制方法、电子设备
By introducing auxiliary power and control circuits into the photovoltaic power supply system and pre-setting the working time of the power test circuit, the system ensures that the load power of the solar panel meets the minimum tracking requirements of the MPPT circuit, thus solving the problem of repeated wake-up of the MPPT circuit under low light conditions and extending the system's service life and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ECOFLOW INC
- Filing Date
- 2023-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
Under low light conditions, the maximum power point tracking circuit (MPPT) of the photovoltaic power supply system is repeatedly activated, leading to reduced lifespan and unstable power supply to the load.
An auxiliary power supply circuit, a power testing circuit, a voltage sampling circuit, and a control circuit are employed. The working time of the power testing circuit is controlled by a preset rule to calculate the load power of the solar panel. When this power exceeds the minimum tracking power of the MPPT circuit, the MPPT circuit is activated to perform maximum power tracking.
This avoids repeated wake-ups of the MPPT circuit, reduces the number of state switching cycles in the photovoltaic power supply circuit, extends the lifespan of the photovoltaic power supply circuit and solar panels, and improves system stability.
Smart Images
Figure CN116418086B_ABST