Battery Series-Parallel Switching Circuit for Voltage Compatibility
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Solution Overview
Problem
High-voltage cameras require a voltage range that conventional low-voltage batteries cannot meet, leading to potential damage when high-voltage batteries are incorrectly used with low-voltage cameras or chargers, and there is a lack of compatibility between battery types and charging systems.
Innovation Solution
A battery with a microcontroller, series-parallel switching circuit, and charging and discharging management chip that automatically adjusts its configuration to be compatible with both high-voltage and low-voltage systems by connecting battery packs in series or parallel, using contactless or contact-based connectors for identification and control, and an on/off protection circuit for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a high-voltage battery structure is used to meet the power requirements of high-voltage cameras, then the power output is improved, but the risk of damage to low-voltage cameras and chargers increases due to incorrect usage
Solution Approach 1:
The battery performs self-identification of the connected device type (high-voltage or low-voltage) through the connector recognition mechanism, and automatically configures its internal circuit topology without requiring manual intervention from the user, thereby eliminating human error in voltage matching
Solution Approach 2:
The battery proactively prevents potential damage by detecting the connected device type before power delivery begins, and pre-configures the appropriate voltage output mode (high-voltage or low-voltage) to avoid incompatible power delivery that could damage low-voltage devices
2Power
If high-voltage batteries are designed to support only high-voltage charging and discharging, then the power performance is improved, but the adaptability to different voltage systems deteriorates
Solution Approach 1:
The battery dynamically reconfigures its internal circuit topology between series connection mode (for high-voltage output) and parallel connection mode (for low-voltage output) based on the detected connected device type, allowing a single battery to adaptively serve multiple voltage requirements
Solution Approach 2:
The battery is designed with dual functionality to support both high-voltage camera/charger systems and low-voltage camera/charger systems through automatic voltage mode switching, making a single battery model universally compatible across different voltage platforms
3Device complexity
If users manually determine voltage type matching between batteries and charging systems, then the device complexity is reduced, but the risk of human error and incompatible usage increases
Solution Approach 1:
The battery autonomously performs voltage type identification and mode selection through connector recognition, eliminating the need for users to manually determine compatibility, thereby removing human error while maintaining simple device operation
Solution Approach 2:
The battery uses the connector connection state as feedback to automatically determine the connected device type and adjust its output voltage mode accordingly, creating a closed-loop system that ensures correct voltage matching without user intervention
Data Source
AI summary
The present invention discloses a battery and an external component, which belong to the field of power supply technologies for a movie and television shooting apparatus. The battery of the present invention is used in cooperation with an external component, including at least two battery packs, a microcontroller, and a series-parallel switching circuit, and further including a connector in cooperation with the external component, the microcontroller controlling the series-parallel switching circuit according to a cooperation state of the connector and the external component, so that the battery packs are connected in series or in parallel. The present invention can be compatible with a high/low voltage camera and a high/low voltage charger automatically.