{"product_id":"dc-electronic-load-1a-max44251","title":"DC Electronic Load – 1A, MAX44251","description":"\u003cp\u003eThis is a very precise\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eElectronic Load\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eproject built using the ultra-Precision, Low-Noise OPAMP\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMAX44251\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efrom Analog Devices. The project can sink current from a power source. It can be used as test gear for power supplies, chargers, solar panels, batteries, and DC-DC converters. The resistor R11 acts as a shunt, OPAMPs convert current into voltage, 2\u003csup\u003end\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eop-amp, and Q1 MOSFET are used to control the load current. A Multi-turn potentiometer helps to adjust the load current in the range of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0 to 1A.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe supply voltage is up to 60V DC. The board works with dual supply\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+\/-15V DC\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eand draws a few milli amps.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLM317\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eregulator provides 12V DC top op-amp and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLM337\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides regulated -7V supply to op-amp. At full load, MOSFET Q1 produces lots of heat, and a fan and large heatsink on MOSFET will help cool it down. Users may use a current meter in series to load to display the current. Optional onboard Trimmer potentiometer provided in case external potentiometer is not required.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Power Supply Dual 15V DC (+\/-15V DC)\u003c\/li\u003e\n\u003cli\u003eLoad Current 1Amp, Power Supply Up to 60V DC\u003c\/li\u003e\n\u003cli\u003eHighly Efficient and Ultra-Precision Current Control\u003c\/li\u003e\n\u003cli\u003eOn-Board Power LED\u003c\/li\u003e\n\u003cli\u003eBarrier Block Connector for Load connection\u003c\/li\u003e\n\u003cli\u003eExternal Or On-Board Trimmer Potentiometer Option for Current Control\u003c\/li\u003e\n\u003cli\u003ePCB dimensions: 66.52 x 33.66 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46909514973356,"sku":"G120","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G120.jpg?v=1786361267","url":"https:\/\/dotfry.com\/products\/dc-electronic-load-1a-max44251","provider":"dotfry","version":"1.0","type":"link"}