Charge Pump Circuit Segmentation for Power Efficiency
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Solution Overview
Problem
Existing power supplies with charge pump circuits operate at limited efficiency.
Innovation Solution
A power supply design featuring two parallel channels with charge pump circuits, each operating in alternate clock states and synchronously clocked, allowing for efficient operation by charging capacitors in series with the voltage source to generate an output voltage up to three times the supply voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a charge pump circuit is used to generate output voltage, then output voltage can be generated, but efficiency is limited
Solution Approach 1:
The power supply is divided into two parallel channels, each with its own charge pump circuit. This segmentation allows the system to operate more efficiently by distributing the power generation load across multiple independent circuits that can be alternately activated.
Solution Approach 2:
The two channels are operated in alternating periodic fashion, with each channel active during different time intervals. This periodic operation allows capacitors to be charged and discharged in an optimized sequence, improving overall efficiency while maintaining continuous output power delivery.
2Power
If charge pump capacitors are connected in series with voltage source, then output voltage increases up to three times supply voltage, but circuit complexity increases
Solution Approach 1:
The charge pump circuit is segmented into multiple capacitors (first charge pump capacitor and second charge pump capacitor) that can be independently controlled and connected in different configurations. This allows the circuit to achieve triple the supply voltage through series connection during output phase while maintaining separate charging paths that simplify control logic.
Solution Approach 2:
The circuit dynamically reconfigures the connections of charge pump capacitors between series and parallel configurations based on operational phase. During charging, capacitors are connected in parallel to the voltage source; during output, they are connected in series to achieve voltage multiplication, optimizing performance while managing complexity through controlled dynamic switching.
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 configuration significantly enhances output power generation while maintaining a compact size, achieving efficient and economical power supply with stable output voltage.
Implementation Method 1
the charge pump circuit can be configured to charge a first charge pump capacitor from a voltage source and charging a second charge pump capacitor from a series connection of the first charge pump capacitor and the voltage source
Data Source
AI summary
Exemplary embodiments of a power supply can be provided. The exemplary power supply can include a voltage source which supplies a supply voltage; and a charge pump circuit supplied by the voltage source and configured to generate an output voltage at an output. The charge pump can include alternating first and second clock states. In the first clock state, a first charge pump capacitor can be disposed between the supply voltage and ground and can be charged to the supply voltage by the voltage source, and a second charge pump capacitor can be coupled in series between the voltage source and the output. In the second clock state, the first charge pump capacitor and the second charge pump capacitor can be connected in series such that the charged connection of the first charge pump capacitor the first clock state can be grounded and the second charge pump capacitor can be charged by the voltage source.