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Power Anything using Type C

posted Jan 2, 2018, 12:26 PM by Cohberg Ng   [ updated Mar 6, 2018, 11:30 AM ]
Using a polling chip like the ZY12PD you can get 5V, 9V, 14V and 20V from capable type C PD bricks.


The led color to voltage equivalances:
Red 5V, Yellow 8-10V, Green 11-13V, Cyan 14-16V, Blue 18-20V, Purple selects the highest voltage, White polls all supported voltage in sequence automatically.
Note that depending on what USB pd modes your charger supports, all profiles / voltages listed might not be available.

On mode locking:
Hold down the surface mount button, apply type c power, release the button
Select the voltage that you want (denoted by the led color)
Hold the button until the led light turns off.
Next time you insert power the ZY12PD will recall the saved voltage. If successful, instead of the default red led, the led will be green. Make sure to verify voltage by power cycling the pd chip (removing then reintroducing type c power) and check that selected voltage is recalled correctly between power cycles.

Here is an example powering a Lenovo X250 via the "rectangle" plug




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