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Reply to "Exceeding current draw of adaptors: does it damage them?"

USB C type power supplies for laptops have outputs for 20 VDC, 15 VDC, 9VDC, 5VDC, between 2 and 3 amps each depending on the manufacturer.

P5202234P5202233

They have short circuit protection and Female USB Type C breakout boards are available. Another way to go.

USB C breakout

Update:   Further research has found that the only the standard USB voltage ( 5 VDC ) is available from USB Type C power supplies by adding 5.1K ohm resistors ( marked green, brown, red, gold or silver ) between the CC1 and CC2 terminals and ground to enable the power supply.

There are 4 VBUS connections and 4 grounds. Each VBUS to GND connection can handle 1/4 of the 3 amp supply.

If you need all 3 amps to power one circuit, you''ll need to connect the four VBUS terminals together and the four GND terminals together so as not to overload the powersupply to breakout board USB-C connector. Similarly, for 1.5 AMPS you'd connect two sets together.

SAM_0597 edit



5 VDC between VBUS and Ground

SAM_0596 edit

A configuration controller on the CC1 and CC2 connections is needed to get the other listed voltages.

https://www.arrow.com/en/resea...-for-the-power-brick

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  • P5202234
  • P5202233
  • USB C breakout
  • SAM_0596 edit
  • SAM_0597 edit
Last edited by JET

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