A small, open, affordable USB-C power adapter tester

View all updates Sep 11, 2017

Tiny-PAT as a Variable Power Supply

Though the primary function of the USBCEE Tiny-PAT is to test USB-C power adapters, it can also be used as variable power supply.

Using Tiny-PAT in manual mode, you can select any one of the voltages supplied by the USB-C power adapter. The selected output is then available through the GND and VBUS contacts. As USB-C power adapters can support up to seven different output voltages, there’s a good amount of flexibility.

For example:

An 87 W USB-C power adapter from Apple (https://www.apple.com/shop/product/MNF82LL/A/87w-usb-c-power-adapter) can be used along with USBCEE Tiny-PAT to generate 5 V/3 A, 9 V/3 A, 15 V/3 A or 20 V/4.35 A (87 W) outputs.

Verizon’s USB-C charger (https://www.verizonwireless.com/accessories/verizon-usb-type-c-wall-charger-with-fast-charge-technology/) can be used to generate 5 V/3 A, 7 V/3 A, 8 V/3 A, 9 V/2.7 A, or 12 V/2 A (24 W) outputs.

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Prajith Cheerakkoda has been working in the USB semiconductor and medical electronics industries for the past seven years. He has a B Tech in electronics and communication from Cochin University of Science and Technology. He began his career at Cypress Semiconductor Bangalore as an Application Engineer for USB controllers. He has a wide range of experience in the USB controllers/ USB system development involving Hardware/ Firmware development and Silicon validation.

Manu M

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