{"product_id":"300w-20a-dc-dc-buck-converter-step-down-module-constant-current-led-driver-power-step-down-voltage-module-electrolytic-capacitor","title":"300W 20A DC-DC Buck Converter Step Down Module Constant Current LED","description":"\u003cp\u003eDiscover the 300W 20A DC-DC Buck Converter Step Down Module Constant Current LED — a standout decor pick featuring adjustable design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eCurrent Type: DC\u003c\/p\u003e\u003cp\u003eEU LVD Voltage: Low voltage: Below 50Vac or 75Vdc\u003c\/p\u003e\u003cp\u003eType: Other\u003c\/p\u003e\u003cp\u003eis_customized: No\u003c\/p\u003e\u003cp\u003eProduct Selling Points:\u003c\/p\u003e\u003cp\u003e1. Guaranteed product quality\u003c\/p\u003e\u003cp\u003e2. User-friendly operation\u003c\/p\u003e\u003cp\u003e3. Stable performance\u003c\/p\u003e\u003cp\u003e4. Exquisite appearance\u003c\/p\u003e\u003cp\u003e5. Wide range of applications\u003c\/p\u003e\u003cp\u003eIntroduction to Synchronous Rectification Technology:\u003c\/p\u003e\u003cp\u003eSynchronous rectification is an innovative technique that replaces rectifier diodes with specialized power MOSFETs featuring extremely low on-state resistance to reduce rectification losses. It significantly enhances the efficiency of DC\/DC converters and eliminates the dead-time voltage caused by the Schottky barrier voltage. Power MOSFETs are voltage-controlled devices exhibiting linear voltage-current characteristics during conduction. When used as rectifiers, the gate voltage must synchronize with the phase of the rectified voltage to complete rectification, hence the term “synchronous rectification.” Synchronous rectification technology substantially reduces rectification losses at the output stage of switching power supplies, thereby improving conversion efficiency and lowering the power supply's self-heating.\u003c\/p\u003e\u003cp\u003eModule Parameters:\u003c\/p\u003e\u003cp\u003eModule Type: Synchronous Rectification Non-Isolated Buck Constant Current Constant Voltage Module CC CV Charging Module\u003c\/p\u003e\u003cp\u003eInput Voltage: DC 6-40V\u003c\/p\u003e\u003cp\u003eOutput Voltage: Continuously adjustable (1.2-35VDC), sustained operation below 32V (suitable for applications where input voltage exceeds output voltage; cannot boost voltage)\u003c\/p\u003e\u003cp\u003eOutput Current: Max 20A, continuous 15A (Add fan cooling if power transistor temperature exceeds 65°C; derate for high-voltage outputs)\u003c\/p\u003e\u003cp\u003eCurrent Limit Range: 0.2-20A (adjustable). Add fan if module exceeds 65°C.\u003c\/p\u003e\u003cp\u003eMinimum Dropout Voltage: 3V\u003c\/p\u003e\u003cp\u003eOperating Frequency: 150kHz\u003c\/p\u003e\u003cp\u003eConversion Efficiency: Up to ~96% (efficiency depends on voltage drop and operating environment)\u003c\/p\u003e\u003cp\u003eOutput Ripple: Approx. 50mV ripple (excluding noise) at 20MHz bandwidth (for reference only). Measured at 24V input.\u003c\/p\u003e\u003cp\u003eOperating Temperature: -10°C to +75°C (Monitor power transistor temperature during actual use. Enhance cooling or derate if temperatures are excessively high).\u003c\/p\u003e\u003cp\u003ePotentiometer Adjustment Direction: Clockwise (increase), counterclockwise (decrease).\u003c\/p\u003e\u003cp\u003eOutput Short-Circuit Protection: Yes (instantaneous protection). Constant current (currently set constant current value cannot be short-circuited for extended periods).\u003c\/p\u003e\u003cp\u003eInput Reverse Polarity Protection: No.\u003c\/p\u003e\u003cp\u003eOutput Reverse Current Protection: No. For loads with built-in capacitance or inductive loads, an external diode is required!\u003c\/p\u003e\u003cp\u003eWiring Method: Terminal blocks\u003c\/p\u003e\u003cp\u003eOutput Current Adjustment Method:\u003c\/p\u003e\u003cp\u003e1. Adjust the CV potentiometer to set the output voltage to your required voltage value based on your load requirements.\u003c\/p\u003e\u003cp\u003e2. Turn the CC potentiometer counterclockwise approximately 30 turns (setting output current to minimum). Connect an LED and adjust the CC potentiometer to your desired current. For battery charging: fully discharge the battery before connecting it to the output. Adjust the CC potentiometer to your desired charging current. (For charging accuracy, always calibrate with a fully discharged battery, as remaining charge reduces required charging current.)\u003c\/p\u003e\u003cp\u003ePackage Contents:\u003c\/p\u003e\u003cp\u003eStep-Down Converter Module*1\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the 300W 20A DC-DC Buck Converter Step Down Module Constant?\u003c\/h4\u003e\u003cp\u003eA: The 300W 20A DC-DC Buck Converter Step Down Module Constant is a quality decor pick. Guaranteed product quality 2.\u003c\/p\u003e\u003ch4\u003eQ: How do I use the 300W 20A DC-DC Buck Converter Step Down Module Constant?\u003c\/h4\u003e\u003cp\u003eA: The 300W 20A DC-DC Buck Converter Step Down Module Constant is ready to use right out of the box and makes an easy addition to your decor lineup.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the 300W 20A DC-DC Buck Converter Step Down Module Constant?\u003c\/h4\u003e\u003cp\u003eA: The 300W 20A DC-DC Buck Converter Step Down Module Constant stands out in our decor range — User-friendly operation 3.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the 300W 20A DC-DC Buck Converter Step Down Module Constant?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 300W 20A DC-DC Buck Converter Step Down Module Constant is a quality decor pick. Guaranteed product quality 2.\"}}, {\"@type\": \"Question\", \"name\": \"How do I use the 300W 20A DC-DC Buck Converter Step Down Module Constant?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 300W 20A DC-DC Buck Converter Step Down Module Constant is ready to use right out of the box and makes an easy addition to your decor lineup.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose the 300W 20A DC-DC Buck Converter Step Down Module Constant?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 300W 20A DC-DC Buck Converter Step Down Module Constant stands out in our decor range — User-friendly operation 3.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Default Title","offer_id":47766270247017,"sku":"\u003cnone\u003e","price":15.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/S451e577e36c34bb4b1469654d42be124T.webp?v=1783444254","url":"https:\/\/oasis-select.com\/products\/300w-20a-dc-dc-buck-converter-step-down-module-constant-current-led-driver-power-step-down-voltage-module-electrolytic-capacitor","provider":"Oasis Select","version":"1.0","type":"link"}