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-as of [1 JULY 2024]–
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*USB-A*
(1996)
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*’USB2 TYPE-A’ IS ‘WHITE’*
*’USB3 TYPE-A’ IS ‘BLUE’*
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(2014)
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*LINX*
*IDENTIFYING TYPE/VERSION OF ‘USB CABLE’*
*CMD-LTD LINK*
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*”universal serial bus”*
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‘male’ –> ‘connector’
‘female’ –> ‘port’
(think ‘vaginal intercourse’)
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*USB HUBS ARE ‘BACKWARDS COMPATIBLE’*
(meaning a ‘USB3 HUB’ will work on ‘USB2 PORT’)
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*USB PORTS* –>
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*MINI A*
(hexagon)
(6 sides)
(portable charger 1)
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*USB* (1.1 – 2.0) MICRO B*
(2 pins)
(inverted rectangle)
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(peel off black cover on wireless headpones)
(plug into ‘USB socket’ for ‘electric charge’)
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*USB PORTS*
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[‘USB’ is an ‘industry standard’ that establishes specifications for…]
‘cables’
‘connectors’
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(as well as ‘protocols’ for…)
‘connection’
‘communication’
‘power supply’
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*BETWEEN*
‘computers’
‘peripheral devices’
‘other computers’
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(released in ‘1996’, the ‘USB standard’ is currently maintained by the ‘USB implementers forum’ (‘USB-IF’))
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(there have been 4 ‘generations’ of ‘USB specifications’…)
*USB 1.x*
*USB 2.0*
*USB 3.x*
*USB 4*
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‘A’ – computer
‘B’ – ‘peripherals’
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*3 CONNECTOR TYPES*
“STANDARD”
“MINI”
“MICRO”
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*5 SPEEDS*
“LOW SPEED”
“FULL SPEED”
“HIGH SPEED”
“SUPER SPEED”
“SUPER SPEED +”
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USB connectors were originally developed to deliver dc power and digital signals.
The wide acceptance of the USB power voltage level and connectors has also made them popular for power only applications.
The Type-A connector is perhaps the most popular USB connector at the present time and can be found in applications requiring 5 Vdc with load current levels of less than about 2 A.
Variations of the USB Type-A connector (mini, micro, etc.) are also used in similar power delivery applications.
One limitation of the Type-A connector and the variants is there is only one orientation of the connectors in which they will properly connect
This limitation requires the user to determine the correct orientation of the plug and jack either by visual identification or by attempted insertions.
The USB Type-C connector is more compact and can be inserted in either of two obvious orientations.
The Type-C connectors can pass higher power levels than previous versions of the USB connectors and are rated to deliver a maximum of 20 V at 5 A.
Please look at the CUI article USB Type-C, Power Delivery and Programmable Power Supply to get a better understanding of the USB Power Delivery (PD) and Programmable Power Supply (PPS) specifications used to deliver the higher voltages and currents.
Although product designers can choose any connector for the dc power plug, many electronic products use USB input power jacks to receive 5 Vdc.
Because of this common practice, it is prudent to use USB plugs only on power supplies with a 5 Vdc output voltage rating to not damage the many products using USB power jacks which are expecting 5 V from the plug.
The exception to this recommendation is if a USB Type C connector is used, then the USB PD and PPS specifications allow for the supply and load to negotiate for a voltage between 5 V and 20 V.
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*👨🔬🕵️♀️🙇♀️*SKETCHES*🙇♂️👩🔬🕵️♂️*
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥