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Free download 2n305511/17/2023 ![]() ![]() Your personal data will be stored until you withdraw your consent to the processing of your personal data.Ħ. Providing data is voluntary, however, it is necessary to send an information bulletin.ĥ. Your data will be processed on the basis of point (a) of Article 6(1) of Regulation of the European Parliament and of the Council (EU) 2016/679 of 27 April 2016 on the protection of individuals with regard to the processing of personal data and on the free movement of such data and the repeal of Directive 95/46/EC (hereinafter referred to as: GDPR), in order to send to the provided e-mail address, an electronic news bulletin of TME.Ĥ. The personal data controller has appointed a data protection officer, who can be reached via email. Ustronna 41, 93-350 Łódź hereby informs you that it will be the controller of your personal data.Ģ. This is an adjustable high current regulator circuit that the output voltage can be adjusted using a 5K potentiometer.1. ![]() Current Boosting Using a PNP Power Transistor (MJ2955)įigure-1 shows the schematic diagram of the circuit. ![]() This problem can be solved using a pass power transistor. This information proves to us that this cheap 3-terminal device is suitable for many applications but it comes with a drawback for power applications and that is the limitation of the regulator’s output current handling (1.5A in the best conditions). Overload protection remains functional even if the ADJUST terminal is disconnected.” It includes current limiting, thermal overload protection, and safe operating area protection. The device features a typical line regulation of 0.01% and a typical load regulation of 0.1%. It requires only two external resistors to set the output voltage. In this article, I will discuss two methods of LM317 current boosting, using power PNP and NPN pass transistors.Īccording to the LM317 datasheet: “The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. However, the chip can deliver currents up to 1.5A which is not enough for some power applications. The output voltage of the regulator can be adjusted from 1.25V to 35V. LM317 is one of the most popular adjustable regulator chips. ![]()
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