Battery Pack MOSFET Circuit for Polarity-Independent Configuration
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Solution Overview
Problem
Existing battery packs require precise polarity alignment for error-free operation, which can be cumbersome and inefficient, especially in applications where quick battery replacement or mixed polarity configurations are needed.
Innovation Solution
An electronic circuit with multiple MOSFETs is integrated into a battery pack, allowing for independent detection and configuration of battery polarity across multiple compartments, enabling series, parallel, or series/parallel connections without direct electrical contact between batteries, ensuring consistent voltage and polarity output irrespective of battery orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If batteries are placed in a battery pack with direct electrical contact between compartments, then electrical connection is simplified, but polarity alignment becomes critical and error-prone
Solution Approach 1:
The battery pack is divided into multiple independent compartments, each containing its own battery and electronic circuit. This segmentation allows each battery to be handled independently without requiring precise polarity alignment between batteries, as each compartment's circuit independently manages its battery's polarity through MOSFET switching.
Solution Approach 2:
An electronic circuit with MOSFETs acts as an intermediary between the batteries and the load. This intermediary detects battery polarity and automatically switches connections to achieve the desired series, parallel, or series/parallel configuration, eliminating the need for manual polarity alignment by the user.
2Adaptability or versatility
If batteries are placed in independent compartments without direct electrical contact, then polarity independence is achieved, but circuit complexity increases
Solution Approach 1:
The electronic circuit is designed to perform multiple functions: detecting battery polarity, determining compartment configuration (series, parallel, or series/parallel), and automatically switching connections via MOSFETs. This multi-functionality allows a single circuit design to handle various battery configurations without requiring separate circuits for each configuration type.
Solution Approach 2:
The circuit dynamically adapts its configuration based on detected battery polarities and compartment arrangements. The MOSFETs are controlled in real-time to switch between series, parallel, and series/parallel connections, allowing the system to optimize its electrical configuration dynamically rather than being fixed to a single topology.
3Manufacturing precision
If manual polarity alignment is required for battery placement, then connection accuracy is high, but operation time and user effort increase
Solution Approach 1:
The electronic circuit performs automatic polarity detection and configuration determination without user intervention. When batteries are inserted into the independent compartments, the circuit automatically detects their polarities, determines the appropriate configuration, and switches the MOSFETs to achieve the correct series, parallel, or series/parallel connection, eliminating the need for users to manually align polarities.
Solution Approach 2:
The circuit incorporates feedback mechanisms that detect battery polarity and compartment configuration status, then use this information to automatically adjust MOSFET switching states. This closed-loop feedback system ensures accurate polarity connection while eliminating manual alignment steps, as the circuit continuously monitors and adjusts based on actual battery orientations.
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 allows for seamless battery replacement and configuration, extending battery life by optimizing voltage usage and reducing waste, while providing a compact, cost-effective, and safe solution for various applications, including portable devices and electric vehicles.
Implementation Method 1
An electronic circuits detects how each battery is placed and provides power according to a configuration that may be a series, a parallel or a series/parallel configuration
Implementation Method 2
operating an electronic circuit such that batteries in the multiple compartments are connected together according to a configuration irrespective of polarity orientations
Data Source
AI summary
Methods, systems and apparatus for providing power from a battery pack are described. One example method of connecting batteries in a battery pack include providing a battery pack comprising multiple independent compartments where each compartment is configured to hold at least one battery that has no direct electrical contact with batteries in other compartments of the multiple compartments, detecting, upon a placement of batteries in the multiple compartments, occurrence of the placement, and operating an electronic circuit such that batteries in the multiple compartments are connected together according to a configuration irrespective of polarity orientations by which the batteries were placed in the compartments.