Apple inc. (20240204658). SWITCHED CAPACITOR CONVERTER WITH TAP-CHANGE CAPABILITY simplified abstract
Contents
SWITCHED CAPACITOR CONVERTER WITH TAP-CHANGE CAPABILITY
Organization Name
Inventor(s)
Vijay G Phadke of San Jose CA (US)
SWITCHED CAPACITOR CONVERTER WITH TAP-CHANGE CAPABILITY - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240204658 titled 'SWITCHED CAPACITOR CONVERTER WITH TAP-CHANGE CAPABILITY
The abstract describes a patent application for a switched capacitor converter battery charging circuit that can deliver an integer multiple of the input current to a battery by selectively enabling or disabling flying capacitor stages based on the input voltage.
- The circuit includes a plurality of flying capacitor stages between the input and output, controlled by a controller to achieve the desired multiple of the input current.
- The flying capacitor stages are divided into first and second phases, which operate in an interleaved manner to reduce current or voltage ripple.
- The converter can provide integer multiples of 4x, 3x, 2x, or 1x of the input current to charge the battery efficiently.
Potential Applications: - Electric vehicle charging systems - Portable electronic devices - Renewable energy storage systems
Problems Solved: - Efficient battery charging - Reduced current or voltage ripple - Improved power conversion efficiency
Benefits: - Faster charging times - Enhanced battery life - Reduced energy waste
Commercial Applications: Title: Efficient Battery Charging Circuit for Various Applications This technology can be utilized in electric vehicle charging stations, portable electronic devices, and renewable energy storage systems, offering faster charging times and improved energy efficiency.
Prior Art: Readers can explore prior patents related to switched capacitor converters, battery charging circuits, and power electronics to understand the evolution of this technology.
Frequently Updated Research: Researchers are constantly exploring ways to enhance the efficiency and performance of switched capacitor converter circuits for various applications.
Questions about Switched Capacitor Converter Battery Charging Circuit: 1. How does the interleaved operation of the flying capacitor stages reduce current or voltage ripple? 2. What are the key factors influencing the selection of integer multiples of the input current in the converter design?
Original Abstract Submitted
a switched capacitor converter battery charging circuit can include an input that receives an input current, an output that delivers an integer multiple of the input current to a battery, a plurality of flying capacitor stages disposed between the input and output, and controller circuitry coupled to the flying capacitor stages that selectively enables or disables one or more of the flying capacitor stages to select the integer multiple responsive to a voltage supplied at the input. the flying capacitor stages can include a first plurality of flying capacitor stages forming a first phase of the converter and a second plurality of flying capacitor stages forming a second phase of the converter. the first and second phases can be operated in an interleaved manner to reduce current or voltage ripple. the converter can include three flying capacitor stages, providing for selection of integer multiples of 4�, 3�, 2�, or 1�.
