Development of Liqualloy Power Inductor Enabling Mobile Devices to Run for an Extended Time
Alps Green Devices has developed power inductor helping the mobile devices to run for a long period of time by lowering the power consumption not only the CPU and the various devices but also the DC/DC converter which are used to supply power after converting voltage. The newly developed Liqualloy power inductor is a new GLMH series from the company. The liqualloy is the inductor’s core material which is a magnetic amorphous alloy created through joint research between Alps Electric and Tohoku University. The use of liqualloy provides ability for minimizing the power loss during conversion, thereby enabling high efficiency especially during low-load operation.
The new series of power inductor employs and integrated coil-terminal structure, where by coil wire doubling as the terminal, DC resistance is reduced by 10 to 20 percent in comparison to types with same level of inductance. The new structure keeps the DC resistance to a narrow +/-5% and reduces heat generation during high load operation. Its main applications include DC/DC converters for notebook PCs, tablets and servers, as well as POL (Point-of-load) power supplies to name a few.