Guides & Informative Articles

Understanding Programmable Power Supply (PPS)

Posted on by R. Roz.

One of the significant enhancements introduced with USB Power Delivery (USB PD) is the Programmable Power Supply (PPS) feature. PPS allows devices to negotiate and dynamically adjust the power levels during charging. This adaptability is particularly beneficial for optimizing charging efficiency and enhancing the lifespan of the device’s battery.

How PPS Works

When a device connects to a PPS-enabled charger, both the charger and the device engage in a communication process through the USB PD protocol. This communication allows the device to request specific voltage and current levels that meet its immediate power requirements. For instance, if a smartphone is at 50% battery, it may request a lower voltage and current to avoid overheating, while a laptop that needs a quick charge can request higher levels.

Benefits of PPS

  1. Improved Efficiency: By adjusting the power output in real-time, PPS minimizes energy loss during the charging process. This leads to more efficient charging and helps in reducing heat generation.
  2. Battery Longevity: Managing power delivery according to the device’s needs reduces stress on the battery. By avoiding high voltages and currents when unnecessary, PPS helps prolong the overall lifespan of the battery.
  3. Versatile Charging: PPS makes it possible to charge a wide range of devices with varying power requirements using the same charger. This feature is particularly useful in scenarios where multiple devices are charged from a single power source, such as charging a smartphone and a laptop simultaneously.
  4. Smart Device Integration: As more devices become smart and IoT-enabled, the ability to dynamically adjust power settings becomes increasingly important. PPS ensures that devices communicate effectively, allowing for optimized charging solutions across different applications.

Reduced Heating Issues

Longer Battery Life

PPS Enabled USB Chargers

The introduction of Programmable Power Supply (PPS) within USB Power Delivery marks a significant advancement in charging technology. By allowing for dynamic adjustments in voltage and current, PPS not only enhances charging efficiency but also contributes to battery health and longevity. As USB PD continues to evolve, the adoption of PPS is expected to increase, making it a critical feature in future devices and charging solutions.

At Coolgear we offer multiple USB PD chargers featuring Programmable Power Supply integration, browse our options below.

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