321
Applications of Electrochemical Supercapacitors
FIGURE 8.2
DDR3 ArxCis-NV module combines supercapacitor DRAM and flash memory to deliver a persistent memory solution that saves critical data from power failure events. (Courtesy of Viking
Technology.)
crossover switch using the LTC4412 power path controller and an LTM4616
dual output μModule DC–DC converter.
Many electronic devices also include premature shutdown circuitry. These
devices will power down upon detection of low voltage to prevent loss of
data. A noisy supply voltage can sometimes trigger these shutdown circuits.
An ES will help prevent premature shutdowns by reducing the severity of
voltage transients [4].
8.4 Battery Enhancement
In today’s world, the number of portable and mobile devices is increasing exponentially. Driven by the increasing demands for computing, communications, and transportation, these devices continue to become more
advanced. All this progress requires batteries to deliver more performance
in terms of power and energy. Actually, the power requirements of computer
processors have increased steadily since 1986. Unfortunately battery manufacturers have not been able to catch up with the increasing needs of the new
devices. Batteries are still limited by the dynamics and characteristics of the
chemical reactions they create.
In battery-powered portable systems such as laptops and other mobile
applications, the span of time during which a device can operate before the
energy reserve is depleted is called the battery run-time. For example, current
battery technologies have typical energy densities of 200 W/kg, depending
Applications of Electrochemical Supercapacitors
FIGURE 8.2
DDR3 ArxCis-NV module combines supercapacitor DRAM and flash memory to deliver a persistent memory solution that saves critical data from power failure events. (Courtesy of Viking
Technology.)
crossover switch using the LTC4412 power path controller and an LTM4616
dual output μModule DC–DC converter.
Many electronic devices also include premature shutdown circuitry. These
devices will power down upon detection of low voltage to prevent loss of
data. A noisy supply voltage can sometimes trigger these shutdown circuits.
An ES will help prevent premature shutdowns by reducing the severity of
voltage transients [4].
8.4 Battery Enhancement
In today’s world, the number of portable and mobile devices is increasing exponentially. Driven by the increasing demands for computing, communications, and transportation, these devices continue to become more
advanced. All this progress requires batteries to deliver more performance
in terms of power and energy. Actually, the power requirements of computer
processors have increased steadily since 1986. Unfortunately battery manufacturers have not been able to catch up with the increasing needs of the new
devices. Batteries are still limited by the dynamics and characteristics of the
chemical reactions they create.
In battery-powered portable systems such as laptops and other mobile
applications, the span of time during which a device can operate before the
energy reserve is depleted is called the battery run-time. For example, current
battery technologies have typical energy densities of 200 W/kg, depending