USB Power Delivery… From Powering Your Mouse to Powering Your Computer

Literally Billions of USB connectors are shipped each year, and USB provides data connectivity and power input to electronic devices ranging from your computer mouse and keyboard to digital cameras, storage device, phones, and tablets.

Clearly USB has been a very successful technology. Partly this can be attributed to the thoughtful design of the original USB technology and the positive impact of standardization. By standardizing peripheral interconnections across different electronics manufacturers and platforms, USB became ubiquitous. But to a similar degree, the success of USB has been driven by the consistent efforts of developers to improve the specification and enhance the capabilities of the technology. And, although many of these enhancements have addressed only behind the scenes technical issues, the most visible of them have primarily come in two areas: Data Rates, and Power Delivery.

As USB technology has evolved, it has included an ability to supply increasing amounts of electrical power from one device to another. The earliest USB specification included the ability to supply power to simple peripheral devices like a mouse, keyboard, or small storage drive. Power always flowed from the host side to the device side, and the specification made allowances for powering complex configurations that included multiple cascaded hubs and dozens of peripheral devices.

In the early days, this Power Delivery specification was a secondary capability. It supplied only a very limited amount of power and this power was only supplied in conjunction with a data connection. Later USB specs made allowance for higher levels of simple downstream Power Delivery to accommodate power hungry devices and eliminated the need for common peripherals like portable storage devices to provide their own dedicated power sources.

Globtek designs and manufactures power supplies and battery chargers for diverse needs, from basic consumer applications to advanced medical and scientific applications. Globtek provides power supplies and cables that are designed to provide the USB power to support the highest levels of USB Power and USB Charging without risk of overloading older devices from excessive voltage and power levels.

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  • Continuing to pursue its commitment to quality products and service, GlobTek, a world-class leader in the design and manufacture of power supplies and rechargeable energy systems, now has Intertek ETL... USB AC Adapter/Power Supply Certified to ANSI/AAMI ES60601-1 for the United States and Canada and EN/IEC 60601-1, 3rd edition for Europe, Asia, and Africa and is rated up to 6W output with 5V output., Model Series WR9QA1000USBNMEDRVB GTM41078-06
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