Power Supply Switching for Native Voltage Transfer
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Solution Overview
Problem
Existing electronic devices face limitations in efficiently powering other devices through external battery packs, as the process of boosting or reducing voltage generates heat and noise, and requires complex circuitry.
Innovation Solution
An electronic device with a connection terminal, battery, power regulator, and control circuit that authenticates with an external battery device via USB type-C or USB communication to provide power directly without voltage boosting or reducing, using a switch to manage power flow based on authentication conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voltage boosting or reducing circuit is used to provide power from battery device to external electronic device, then power can be supplied at different voltage levels, but heat and noise are generated and device complexity increases
Solution Approach 1:
The patent extracts and removes the voltage boosting/reducing circuit from the battery device. Instead of using a power regulator to convert voltage levels, the system directly transmits power at the battery's native voltage level through the connection terminal, eliminating the source of heat and noise generation while maintaining power supply capability
Solution Approach 2:
The patent changes the voltage parameter transmission approach from converted voltage (through power regulator) to native voltage (direct transmission). By authentication-based direct power transmission at the battery's original voltage level, the system avoids the harmful effects of voltage conversion while maintaining adaptability through selective activation
2Adaptability or versatility
If voltage boosting or reducing circuit is used to provide power from battery device to external electronic device, then power can be supplied at different voltage levels, but device complexity and power consumption increase
Solution Approach 1:
The patent removes the power regulator circuit from the battery device structure. By eliminating this complex voltage conversion component, the device becomes simpler while still providing adaptability through authentication-based direct power transmission at native voltage levels
Solution Approach 2:
Instead of converting voltage to match the external device's requirements, the system inverts the approach by having the external device adapt to or authenticate with the battery's native voltage level, thereby eliminating the need for complex voltage conversion circuitry
3Loss of energy
If authentication is performed between battery device and external electronic device, then direct power transmission without voltage conversion is enabled, but additional communication overhead is introduced
Solution Approach 1:
The patent performs authentication as a preliminary action before power transmission. By verifying the external device's identity and compatibility through USB type-C or USB communication in advance, the system ensures safe direct power transmission without voltage conversion, optimizing energy efficiency while managing complexity through standardized protocols
Data Source
AI summary
An electronic device includes: a connection terminal, a battery, a power regulator configured to supply power regulated using power supplied from the battery to an external electronic device connected through the connection terminal, a switch configured to open or connect a path between the battery and the external electronic device connected through the connection terminal, and a control circuit configured to detect a connection with the external electronic device through the connection terminal, acquire identification information from the external electronic device, when the identification information meets a first predetermined condition, provide power regulated using the power regulator to the external electronic device through the connection terminal in a state in which the switch is open, and when the identification information meets a second predetermined condition, provide power supplied from the battery to the external electronic device through the connection terminal in a state in which the switch is connected.