Dual-Path Charging Circuit for OTG Wired and Wireless Power
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Solution Overview
Problem
Existing electronic devices cannot simultaneously charge their batteries and supply power to external devices through the battery while performing on-the-go (OTG) functions, limiting their functionality in scenarios like data transfer and power supply.
Innovation Solution
The electronic device is designed with a circuit that connects the battery to both a conductive pattern for wireless power transmission and a connector for wired power transmission, allowing simultaneous or selective wireless and wired power transmission to external devices while charging the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device uses the charging circuit to supply power to external devices during OTG operations, then the device can perform data transfer and power supply functions, but the battery cannot be charged simultaneously and the device cannot provide power to wireless charging devices
Solution Approach 1:
The patent divides the power management functionality into separate circuits: a charging circuit for wired/wireless charging and a power supply circuit for OTG operations. This segmentation allows independent control of charging and power supply paths, enabling simultaneous operation of both functions without conflict.
Solution Approach 2:
The connector is designed to support multiple functions: it can receive power for charging, provide power for OTG operations, and enable wireless charging. The power supply circuit is configured to universally handle both power reception and power transmission modes, allowing the device to adapt to different operational requirements through a single interface.
2Adaptability or versatility
If the electronic device is configured to charge the battery through the charging circuit, then the battery can be charged from wired or wireless charging devices, but the device cannot supply power to external devices or perform OTG functions
Solution Approach 1:
The patent separates the charging circuit and power supply circuit into distinct functional units with independent control. The charging circuit handles power reception from external sources, while the power supply circuit manages power transmission to external devices. This segmentation resolves the contradiction by allowing both functions to operate independently or simultaneously based on circuit configuration.
Solution Approach 2:
The system dynamically switches between charging mode and power supply mode based on operational requirements. The controller can reconfigure the circuit connections in real-time, enabling the device to transition from battery charging to power supply to external devices, and vice versa, or to operate both functions simultaneously through proper circuit routing.
3Adaptability or versatility
If the electronic device provides power to external devices through the charging circuit, then OTG functions are enabled, but the device cannot receive power for charging or supply power wirelessly
Solution Approach 1:
The patent implements separate charging and power supply circuits that can be independently activated. When power supply to external devices is needed, the power supply circuit operates while the charging circuit remains inactive or operates in parallel. This segmentation eliminates the functional conflict present in conventional designs where a single circuit must handle both opposing functions.
Solution Approach 2:
The controller acts as an intermediary that manages power flow between the battery, charging circuit, power supply circuit, and external devices. It coordinates the operation of different circuits to ensure proper power distribution, enabling the device to receive power, supply power, or perform both functions simultaneously based on system state and external conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the electronic device to charge its battery and supply power to external devices wirelessly or wiredly, even during OTG operations, enhancing its versatility and functionality.
Implementation Method 1
a conductive pattern positioned in the housing, the conductive pattern electrically connected with the circuit and configured to wirelessly transmit power to an outside of the electronic device
Data Source
AI summary
An apparatus for wired and wireless charging of an electronic device are provided. The electronic device includes a housing, a display on a surface of the housing, a battery mounted in the housing, a circuit electrically connected with the battery, a conductive pattern positioned in the housing, electrically connected with the circuit, and configured to wirelessly transmit power to an external device, a connector on another surface of the housing and electrically connected with the circuit, a memory, and a processor electrically connected with the display, the battery, the circuit, the connector, and/or the memory. The circuit is configured to electrically connect the battery with the conductive pattern to wirelessly transmit power to the external device and electrically connect the battery with the connector to transmit power to the external device by wire, simultaneously or selectively, with wirelessly transmitting power to the external device.