Zeruns's Blog - English Site
Built a Small Solar Power Station: 3 Solar Panels Generate 4 kWh Daily
Casual Notes on Life

Built a Small Solar Power Station: 3 Solar Panels Generate 4 kWh Daily

A home-built rooftop solar array uses three 350 W panels (two monocrystalline, one polycrystalline) wired in parallel with an MPPT controller, grid-tied inverter, and lead-acid battery storage. The inverter outputs a fixed 400 W to offset the home network cabinet's load. Sunny days generate about 4 kWh daily; cloudy days about 2 kWh. No anti-backflow protection was installed due to wiring complexity.

发布于 2025-05-13
LADS D1500 UPS Teardown Analysis
Reviews & Teardown

LADS D1500 UPS Teardown Analysis

This teardown of a LADS D1500 UPS reveals a line-frequency inverter design with an H-bridge MOSFET circuit, transformer, and two 12V/9Ah batteries. Testing showed rapid battery degradation beyond warranty, ~77% conversion efficiency at 104W input, and ~18W no-load power draw. Readers gain insight into internal components, circuit topology, and real-world performance.

发布于 2025-02-04

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