A power supply solution based on the EG1187 chip, with an input voltage range of 20V - 90V, outputting 12V, 500mA, using a non-isolated architecture to achieve constant voltage and constant current output, featuring output short-circuit protection, and adjustable output current limit peak value and output voltage by modifying external resistors.

A power supply solution based on the EG1192 chip, with an input voltage range of 15V - 85V, outputting 12V, 800mA, using a non-isolated architecture to achieve constant voltage and constant current output, featuring output short-circuit protection, and adjustable output voltage and current limit peak value by modifying specific resistors.

A 2.5A non-isolated DC-DC power supply solution based on the EG1192S chip, using a BUCK topology structure, with an input voltage range of 11V - 85V (outputting 5V) or 18V - 85V (outputting 12V), maximum efficiency of 93.8% (when outputting 12V), customizable enable control line, adjustable output voltage and peak current by modifying resistors, suitable for vehicle controllers, fast charging power supplies, inverters, and industrial control systems.

A QC3.0 fast charging solution based on the EG1192S chip, using a BUCK topology structure, with an input voltage range of 18V - 85V, output current of 2.4A, maximum efficiency of 93.8%, supports QC3.0 fast charging protocol, adjustable output voltage and peak current by modifying resistors, suitable for charging scenarios where high charging speed is required.

A 5V800mA non-isolated DC-DC power supply solution based on the EG1198 chip, using a BUCK topology structure, with an input voltage range of 12V - 120V, maximum efficiency of 81.5%, featuring output short-circuit protection and per-cycle current limiting, customizable enable control line, suitable for instruments, vehicle controllers, inverters, and industrial control systems.

A high-efficiency synchronous rectifier non-isolated DC-DC power supply solution based on the EG11731 chip, with an input voltage range of 20V - 90V (customizable for a wider range), maximum efficiency of 95%, featuring overcurrent, short-circuit, over-temperature protection, and customizable enable control line, using a synchronous rectifier BUCK topology, suitable for electric motorcycles, electric bicycles, portable mobile devices, industrial power equipment, LED displays, and other fields.