{"title":"Inductive Charging Set - 3.3V @ 500mA max","handle":"inductive-charging-set-3-3v-500ma-max","url":"/products/inductive-charging-set-3-3v-500ma-max","description":"This inductive charging set provides wireless power transfer using a split-transformer design. The transmitter coil is powered with 9–12 V DC, and the receiver coil outputs 3.3 V DC — no direct wire connection between the two halves is needed. Any non-ferrous, non-conductive material (air, wood, plastic, glass, leather, paper) can be placed between the coils.\n\nKey Features\n\n\nWireless Power Transfer – Inductive coupling via air-core transformer\n\n3.3 V DC Output – Regulated output from the receiver board\n\nUp to 500 mA – At 2–3 mm coil separation\n\nTwo-Board Set – Separate transmitter and receiver modules\n\nAdjustable Output – Feedback resistor divider on the receiver can be modified for different output voltages (advanced users)\n\n\nSpecifications\n\n\nInput Voltage – 9–12 V DC (transmitter)\n\nOutput Voltage – 3.3 V DC (receiver)\n\nMax Output Current – 500 mA (at 2–3 mm separation)\n\nQuiescent Current – ~70 mA (transmitter, with no receiver present)\n\nEfficiency – ~40%\n\n\nDistance vs Current\n\n\n2–3 mm – Up to 500 mA\n\n~7 mm – Up to 100–200 mA\n\n~12.5 mm – Up to 10 mA\n\n\n\nTip: Align the coils as parallel and co-axial as possible for best power transfer efficiency.\n\n\nPackage Contents\n\n1× Transmitter board (input, 9–12 V DC)\n1× Receiver board (output, 3.3 V DC)\n\n\nIdeal For\n\nWireless charging projects\nSealed enclosure power delivery\nWearable electronics\nPrototyping contactless power systems\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":8044,"title":"Default Title","sku":"AF-1459","price":20.76,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":54,"option1":"Default Title"}]}