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LM317 with heat sink. The LM317 is an adjustable positive linear voltage regulator.It was designed by Bob Dobkin in 1976 while he worked at National Semiconductor. [1]The LM337 is the negative complement to the LM317, which regulates voltages below a reference.
A voltage regulator module (VRM), sometimes called processor power module (PPM), is a buck converter that provides the microprocessor and chipset the appropriate supply voltage, converting +3.3 V, +5 V or +12 V to lower voltages required by the devices, allowing devices with different supply voltages be mounted on the same motherboard.
Series regulators are the more common form; they are more efficient than shunt designs. The series regulator works by providing a path from the supply voltage to the load through a variable resistance, usually a transistor (in this role it is usually termed the series pass transistor); it is in the "top half" of the voltage divider - the bottom half being the load.
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Low-dropout (LDO) regulators operate similarly to all linear voltage regulators.The main difference between LDO and non-LDO regulators is their schematic topology.Instead of an emitter follower topology, low-dropout regulators consist of an open collector or open drain topology, where the transistor may be easily driven into saturation with the voltages available to the regulator.
The Energy Regulators Association of East Africa (EREA) is a non-profit organisation mandated to spearhead harmonisation of energy regulatory frameworks, sustainable capacity building and information sharing among the regulators in the East African Community. The key objective is to promote the independence of national regulators and support ...
An Introduction to the IBM 3270 Information Systems Display System (PDF). IBM. May 1971. GA27-2739-1. IBM 3270 Information Display System: Maintenance Handbook (PDF). IBM. September 1980. S229-7037-4. 3174 Establishment Controller — Introduction (PDF). IBM. April 1989. GA27-3850-0. IBM 3270 Information Display System — Color and Programmed ...