ZKSJ20 300W Synchronous Rectification 20A Automatic Voltage Boosting Power Supply Module Solar Charging MPPT (Without display) Overview A compact MPPT power module designed to convert and regulate DC power efficiently for solar charging and DC power supply applications. Combines synchronous rectification and automatic voltage boosting to deliver stable output up to 300W and continuous output current up to 20A. This version does not include a display. Key benefits Higher conversion efficiency: Synchronous rectification reduces switching losses, improving energy conversion and reducing heat compared to standard diode rectifiers. Stable voltage boosting: Automatic boost functionality maintains required output voltage when input is lower, enabling reliable charging and powering of downstream systems. Precise solar charging control: MPPT tracking optimizes power extraction from solar panels under changing irradiance and load conditions. Compact and installer friendly: PCBmounted module format fits into custom enclosures and integrates with existing systems without a bulky controller head. power capacity: Supports up to 300W and 20A continuous current for mediumpower offgrid and mobile applications. Main functions and performance MPPT solar charging: Continuously tracks maximum power point to maximize energy harvested from solar panels. Synchronous rectification: Uses MOSFETbased rectification to lower conduction and switching losses for better efficiency and thermal performance. Automatic voltage boost: Automatically raises output voltage as needed to meet load or battery charging requirements when input voltage is insufficient. Power and current capability: Rated for 300W maximum output and up to 20A continuous output current. No builtin display: Designed for use with external monitoring or system integration where a separate display is not required. Compatibility and connections Designed for integration with solar panels, battery banks, and DC loads within the module input and output limits. Standard terminal and connector layout for wiring into custom systems or existing installations. Suitable for use as a charge controller or DCDC converter in systems that require MPPT tracking and boosting. Physical attributes and build Compact PCB module format for spaceefficient installation. Constructed with quality power components and thermal design to handle sustained 300W operation. Intended for enclosure mounting and external monitoring; no display or onboard user interface is included. Practical use scenarios 1) Offgrid battery charging: Harvest solar panel output more efficiently and boost voltage when panel voltage falls below battery charge requirements, enabling consistent charging throughout the day. 2) RV and marine power systems: Integrate the module into onboard DC power systems to optimize solar charging and provide stable boosted output for 12V and 24V loads. 3) Remote telecom or sensor installations: Provide reliable MPPT charging and voltage boosting for remote equipment where a compact, display module can be hidden inside a weatherproof enclosure. What makes it stand out Combines MPPT tracking with synchronous rectification and automatic boost in a single compact module, delivering efficient, stable power conversion without a display. Designed for integrators and installers who need a efficiency, current DC power module that can be embedded into custom systems. Note This description reflects the module model ZKSJ20, rated at 300W and 20A, with synchronous rectification, automatic voltage boosting, and MPPT solar charging functionality. This version does not include a display.