Connectors & cables
ANSWERING ALL YOUR CONNECTIVITY AND POWER DELIVERY REQUIREMENTS
USB: T
he USB interface is ubiquitous. We find it everywhere from our laptops, our smartphones, in our cars, and on our smart TV. Initially designed to advance peripheral connectivity beyond legacy serial and parallel methods, the power delivery capability for operation and charging have grown considerably. Like plugging an appliance plug into the AC mains, USB is a utility service; it is often taken for granted, whether for charging one of our many consumer tech devices or transferring a file. USB works! Today, the USB-C connector is far more than for connectivity and charging; it is a popular method of connecting many different peripherals, for example, an external monitor to a laptop. This article will uncover how pervasive the USB interface has become, how the standard has evolved, and the changes in the USB connector type.
USB EVERYWHERE
It is easy to underestimate the profound impact of the USB interface on our adoption and daily interaction with technology. From its early beginnings over two decades ago, we have become as familiar with USB connectors as a door key. Many USB plugs are plugged in and forgotten, such as a keyboard for a desktop computer. Others may be plugged in several times a day, a smartphone into a car's infotainment system. At night, many of us plug our smartphones, fitness trackers, and tablets into a USB-equipped AC line socket to charge overnight, ready for the next day. USB sockets are now increasingly more likely used for the power delivery capabilities than purely for data transfer; such is the dependence we have on USB.
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By Mark Patrick, Mouser Electronics
Figure 1 - USB connector by USB specification (Source: Wikipedia) September 2023 Instrumentation Monthly
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