{"product_id":"programmable-power-supply-using-opa548","title":"Programmable Power Supply Using OPA548","description":"\u003cp\u003eProject provides 1.2 to 20V DC output with current limiter adjustable to 0-5A. I have tested the circuit with 250mA output without a heat sink. Project is capable to drive 3A continues load and 5A peak, large size heat sink required for full load. The tiny power supply based on low cost\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOPA548\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh-voltage and high-current operational amplifier is ideal for driving a wide variety of loads. The project provides excellent low-level signal accuracy and high-output voltage and current. The circuits operate with single supply 24V DC and logic supply 5V DC. The IC is internally protected against over-temperature condition and current overload. Trimmer potentiometer PR1 sets the output voltages, PR2 helps to set the current limit 0 to 5Amps.\u003c\/p\u003e\n\u003cp\u003eNote:  Higher Out voltage 1.2V to 25V possible with input supplies 30V DC, replace capacitor C3, C4 for higher voltage.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Input 24V DC\u003c\/li\u003e\n\u003cli\u003eLogic Supply 5V\u003c\/li\u003e\n\u003cli\u003eOutput 1.2V to 20V\u003c\/li\u003e\n\u003cli\u003eCurrent 3A (Heat sink required)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47221606318252,"sku":"G170","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G170A.jpg?v=1789547609","url":"https:\/\/dotfry.com\/products\/programmable-power-supply-using-opa548","provider":"dotfry","version":"1.0","type":"link"}