{"product_id":"electronic-dc-load-using-tle2141","title":"Electronic DC Load using TLE2141","description":"\u003cp\u003e\u003cspan\u003eThe circuit shown here is a low-cost electronic DC load designed to sink current from a power source. This test equipment can be used to test power devices such as power supplies, chargers, solar panels, and batteries. The board is built using op-amp \u003c\/span\u003e\u003cstrong\u003eTLE2141, LM385\u003c\/strong\u003e\u003cspan\u003e provides the reference voltage. Resistor R11 acts as a shunt resistor and provides load current feedback to the op-amp, potentiometer P1 is provided to adjust the load current, and D1 is the power LED. A 10-turn Potentiometer is provided for fine current adjustment. The user may use a single-turn PR1 trimmer potentiometer. The load current range is up to \u003c\/span\u003e\u003cstrong\u003e2.5A\u003c\/strong\u003e\u003cspan\u003e, and the project can handle higher currents with large-size heat-sink and forced air using a Fan. You may use a \u003c\/span\u003e\u003cstrong\u003e0 to 5A Current Meter\u003c\/strong\u003e\u003cspan\u003e in series to measure the load current.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDC Power Supply 12V DC @ 20mA\u003c\/li\u003e\n\u003cli\u003eLoad Up-to 2.5A and Up-to 24V\u003c\/li\u003e\n\u003cli\u003eOn Board Power LED\u003c\/li\u003e\n\u003cli\u003e10 Turn Potentiometer for fine Load current Adjustment\u003c\/li\u003e\n\u003cli\u003eBarrier Terminals for Load Connections\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 49.53 x 46.36 mm\u003c\/li\u003e\n\u003cli\u003e4 x 3 mm Mounting Holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConnections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCN1: Pin 1,2 = VCC 12V DC, Pin 2,3=GND\u003c\/li\u003e\n\u003cli\u003eCN2: Pin 1 = Optional\/External Ref In, PIN 2 = GND\u003c\/li\u003e\n\u003cli\u003eCN3: Pin 1 = +Load, PIN 2 = GND\u003c\/li\u003e\n\u003cli\u003eCN4: 10 Turn Potentiometer (Don’t Install PR1 if P1 is used)\u003c\/li\u003e\n\u003cli\u003ePR1: Optional Single Turn Trimmer Potentiometer.\u003c\/li\u003e\n\u003cli\u003eD1: Power LED\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47221862105260,"sku":"G171","price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G171A.jpg?v=1789549868","url":"https:\/\/dotfry.com\/products\/electronic-dc-load-using-tle2141","provider":"dotfry","version":"1.0","type":"link"}