Image courtesy of Thinkstock.
Image courtesy of Thinkstock.
Image courtesy of Thinkstock.
Image courtesy of Thinkstock.
Image courtesy of Thinkstock.

Controller Platform Mitigates Wasted Kilowatt-Hours

March 10, 2015
A controller platform aims for zero no-load power consumption and dynamic load regulation to decrease the wasted kilowatt-hours during device charging.

Coupled with the surge in mobile phones, tablets, and computers is the fact that more of these devices are being left plugged into the wall, wasting billions of kilowatt-hours per year. A new solution hopes to cut that wasted power to zero, which could save more than 200 million gallons of oil in a year. The energy-efficient platform is designed with a power-management architecture to achieve zero no-load power consumption and dynamic load regulation.

Designed in partnership with STMicroelectronics and Flextronics, the highly integrated platform—built on the STCH01 controller—suits high-power-density smartphone and tablet adapters. The STCH01 embeds a controller and two power FETs, and is used in conjunction with the STWK01 no-load wakeup controller.

The STCH01 leverages a power-conversion topology to maximize efficiency and shrink the size of the power transformer by 30% compared to previous flyback solutions. Low electromagnetic emissions are further reduced using the IC’s intelligent jitter function. It comes equipped with a full set of protections to ensure more reliable designs with minimal external components.

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