Peripheral Power Delivery Control Across AC and Battery Modes
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Solution Overview
Problem
Electronic devices face challenges in managing power distribution to peripheral devices when the available power changes, leading to potential performance issues and connection drops, especially when transitioning from AC to DC power modes.
Innovation Solution
The electronic device includes a controller system that dynamically adjusts power supply to peripheral devices based on available power, ensuring a lower threshold level is maintained for data communication while reducing surplus power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device provides power to peripheral devices at a high power level to support additional functionality such as battery charging, then the peripheral device can perform more functions, but when the electronic device transitions to DC power mode, the available power decreases and cannot sustain the high power level, leading to connection drops or performance degradation
Solution Approach 1:
The patent implements dynamic power adjustment by continuously monitoring the power mode (AC or DC) and available power levels, then dynamically changing the power delivery to the peripheral device accordingly. The controller switches between different power levels based on real-time conditions, ensuring the peripheral device receives appropriate power without causing connection drops or performance issues.
2Productivity
If the electronic device allocates surplus power to peripheral devices when available, then the peripheral device charging speed increases, but when power availability is limited in DC mode, this surplus power cannot be provided, causing the peripheral device to lose functionality
Solution Approach 1:
The patent changes the power delivery parameter based on the detected power mode. When AC power is detected, the system allocates surplus power to the peripheral device for fast charging. When DC power mode is detected, the system adjusts the power parameter to a lower level that sustains basic functionality without exceeding available power, preventing performance degradation while maintaining operational capability.
3Adaptability or versatility
If the electronic device maintains a fixed power delivery level to peripheral devices, then the peripheral device can consistently access additional functionality, but this consumes excessive power from the electronic device's battery in DC mode, reducing overall device performance and battery life
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors the power mode (AC or DC) and the current power delivery level. Based on this feedback, the controller automatically adjusts the power delivery to the peripheral device. When DC mode is detected, the feedback loop reduces power delivery to prevent excessive battery consumption, while still maintaining sufficient power for basic peripheral device operation.
Data Source
AI summary
In one example in accordance with the present disclosure, an electronic device is described. An example electronic device includes a processor, a port to receive a connector of a peripheral device, and a power supply. An example power supply is to supply power to the processor and the peripheral device when connected to the electronic device. The example electronic device also includes an electronic device controller. The electronic device controller is to alter an amount of power from a first value to a second value to supply to the peripheral device based on an amount of power available from the power supply and a lower threshold power level that enables data communication from the peripheral device. The example electronic device also includes a power delivery controller. The power delivery controller is to provide the amount of power having the second value to the peripheral device based on an output from the electronic device controller.