Hardwired Type-C Charger Power Management Circuit
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Solution Overview
Problem
Existing USB Type-C chargers often struggle to provide sufficient power to charge multiple devices simultaneously, risking power supply collapse when attempting to charge multiple devices at the same time.
Innovation Solution
A USB Type-C input charger with a control logic circuit that prioritizes power allocation to connected devices using hardwired circuitry, ensuring that power is managed efficiently across multiple output ports without the need for an electronic processor, allowing for effective charging of multiple devices by allocating power based on device connection and available supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is supplied to multiple output ports simultaneously, then multiple devices can be charged at the same time, but the power supply may collapse due to insufficient power
Solution Approach 1:
The control logic circuit dynamically adjusts power allocation to output ports based on the priority status of connected devices. When a high-priority device is detected, the circuit dynamically redirects power from lower-priority ports to ensure the high-priority device receives sufficient power, preventing power supply collapse while maintaining efficient charging of critical devices
Solution Approach 2:
The system changes power distribution parameters by allocating different power levels to different output ports based on device priority. The control logic circuit modifies power delivery parameters in real-time, adjusting voltage and current allocation to match the priority requirements of connected devices, thereby maintaining power supply stability during multi-device charging
2Reliability
If power is prioritized to one device over others, then critical devices receive sufficient power, but other devices receive reduced power allocation
Solution Approach 1:
The control logic circuit applies local quality by providing different power allocation strategies to different output ports based on the specific needs of connected devices. Each output port receives customized power management tailored to its connected device's priority status, ensuring critical devices get premium power allocation while non-critical devices receive standard allocation
Solution Approach 2:
The system implements partial action by allocating power selectively to only those output ports connected to high-priority devices when power is limited. Rather than distributing power uniformly across all ports, the control logic circuit concentrates power allocation on critical devices, accepting that non-critical devices may experience reduced or delayed charging
3Adaptability or versatility
If an electronic processor is used for power management, then flexible power allocation can be implemented, but the device complexity increases
Solution Approach 1:
The control logic circuit implements self-service by automatically detecting device connections, determining priority status, and allocating power without requiring external processing or user intervention. The hardwired circuit autonomously manages power distribution based on built-in detection capabilities, eliminating the need for complex electronic processors while maintaining adaptive power allocation
Solution Approach 2:
The patent replaces the mechanical/electronic processing system with a hardwired control logic circuit that uses electrical signals and circuit logic to perform power management functions. This substitution eliminates the need for software-based processing while achieving the same power allocation flexibility through purely electrical control mechanisms
Data Source
AI summary
A charger including a USB type-C input port configured to receive power from a power supply, a plurality of output ports each configured to couple to one of a plurality of devices to be charged, and a control logic circuit operatively coupled to the plurality of output ports and configured to manage power to the plurality of output ports. The control logic circuit is hardwired to prioritize power to a first output port of the plurality of output ports when the output port is coupled to a device such that an amount of the received power is allocated to the output port instead of at least one of the plurality of output ports that is coupled to a second device and the control logic circuit does not include an electronic processor.