2. Mohsen Motamedian
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.
3. Mohsen Motamedian
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.
4. Mohsen Motamedian
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.
