With cellular phones an essential part of modern life, many people become annoyed when their phone batteries die. Part of the reason behind why a phone's energy runs down so quickly involves inefficient power amplifiers. This technology converts electricity into radio signals and continues running even while the phone is in stand-by mode. Moreover, it cannot be shut off and harms the battery.
However, Eta Devices, a spinout of the Massachusetts Institute of Technology, is developing a way to solve this problem. Its co-founder, Joel Dawson, has designed a power amplifier that works to select the most efficient voltage for the battery. This device changes voltage depending on how the phone is being used, and it selects a new frequency 20 million times per second. While the technology currently is designed for large operations, the hope is that engineers can scale down the technology for use in a smartphone. If so, a phone’s battery charge could double. Eta Devices plans to unveil the piece at the Mobile World Congress in February.
About the Author:
As the Chief Executive Officer of Total NutriCare, LLC, Mohsen Motamedian oversees the Irvine, California, firm that sells vitamins and nutritional supplements. While a student at California State University, Long Beach, Motamedian concentrated on electrical and electronics engineering, and he maintains an interest in cellular technology.
Chief Executive Officer of Bashari Inc.