PocketPD is a compact USB Type-C powered desktop power supply that can be held in one hand and even fits in a pocket for easy portability. Despite its small size, it is packed with features, capable of providing a wide voltage range while ensuring safety. On top of its basic functions, PocketPD is equipped with an OLED display, a current sensor, and a banana plug output, allowing it to be used with standard devices like modern USB-C chargers or power banks. Additionally, PocketPD includes an extra feature, serving as a Power Delivery 3.0 profile tester.
PocketPD utilizes the Programmable Power Supply (PPS) mode in USB Power Delivery 3.0 and later versions, allowing users to directly obtain voltage and current from the charger.
The designer aimed to create an open-source solution that meets user needs, is easy to use, and portable. The device features physical buttons and a clear display, allowing users to start using it simply by plugging in a compatible charger or power bank, without the need for complex operations. With its multifunctional features, simple usability, and compact size, PocketPD is undoubtedly an ideal choice for adding power to the toolkit of both professionals and beginners.
The core of PocketPD is built on the Programmable Power Supply (PPS) mode, which was introduced in 2015. Therefore, it is important to confirm that the user's charger or power bank is compatible with this mode. PPS was originally designed to improve battery charging for smartphones, allowing devices to set precise voltage and current levels, making it an ideal choice for desktop power supply applications. Many modern chargers and power banks, including well-known brands such as Anker, Ugreen, Baseus, and CUKTECH, now support PPS. If users are unsure about compatibility, they should be sure to check the relevant device's documentation.
Please note: The maximum voltage and current output of PocketPD depends on the USB Type-C charger and cable: The power output specification will be limited by the lowest current rating of the charger and cable. For example, if the charger supports 5A, but a 3A cable is used, the maximum current output will be 3A. Similarly, the voltage range of the charger will determine the available voltage range of PocketPD's output. Common voltage ranges include 3.3V to 11V and 3.3V to 21V.
This project is going to crowdfund on CrowdSupply, check PocketPD for more info, and welcome to support it when you are interested.
