Charge Pump System Dynamic Boosting Unit Control
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Solution Overview
Problem
Conventional charge pump systems are inflexible and cannot be easily adapted to various operating voltages, limiting their application in integrated circuits with different voltage requirements.
Innovation Solution
A charge pump system that dynamically adjusts the number of boosting units based on the relationship between the operating voltage and the desired output voltage, using a clock generator, boosting unit determination device, and voltage regulator to generate the required output voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of boosting units is fixed in conventional charge pump systems, then the circuit structure is simple, but the system cannot be adapted to various operating voltages
Solution Approach 1:
The charge pump system dynamically adjusts the number of active boosting units based on the operating voltage detected. The boosting unit determination device controls which boosting units are activated, allowing the system to adapt to different voltage requirements (e.g., 1.8V, 2.5V, 3.3V) without changing the physical circuit structure. This dynamic configuration resolves the contradiction by making the system adaptable while maintaining a fixed, manageable circuit design.
Solution Approach 2:
The system changes the operational parameter of the charge pump by adjusting the number of active boosting units rather than changing the physical circuit. The boosting unit determination device modifies which units are activated based on the operating voltage, allowing the same circuit to produce different output voltages (e.g., 10V, 12V, 15V) depending on the input voltage conditions, thus achieving adaptability without increasing circuit complexity.
2Productivity
If the charge pump system uses a fixed number of boosting units, then the device complexity is low, but the efficiency varies significantly across different operating voltages
Solution Approach 1:
The operating voltage detector continuously monitors the input voltage and provides feedback to the boosting unit determination device. Based on this feedback, the system determines the optimal number of boosting units to activate, ensuring efficient operation across different voltage conditions. This feedback mechanism allows the system to maintain high charging efficiency whether the operating voltage is 1.8V, 2.5V, or 3.3V, without requiring complex manual intervention.
Solution Approach 2:
The system dynamically configures the number of active boosting units based on real-time voltage conditions. When the operating voltage is lower (e.g., 1.8V), more boosting units are activated to achieve the required output voltage efficiently. When the operating voltage is higher (e.g., 3.3V), fewer boosting units are needed. This dynamic adjustment optimizes charging efficiency across different voltage scenarios while keeping the control mechanism relatively simple.
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
Enables the charge pump system to be applied to various circuit systems at different operating voltages, improving flexibility and efficiency by dynamically determining the number of boosting units needed.
Implementation Method 1
each of the four boosting stages 102, 104, 106 and 108 comprises a single boosting circuit. For example, the boosting circuit of the second boosting stage 104 comprises a precharge transistor Tp, a main transistor Tm, and two capacitors Cp, Cm
Data Source
AI summary
The charge pump system includes a clock generator, a boosting unit determination device, a charge pump circuit, and a voltage regulator. The clock generator is used for generating a clock group. The boosting unit determination device is used for generating a number control signal. The charge pump circuit is used for receiving an operating voltage, the number control signal and the clock group, and generating an output voltage. The charge pump circuit includes plural boosting units. A first portion of the plural boosting units are controlled by the clock group according to the number control signal. The operating voltage is converted into an output voltage by the first portion of the plural boosting units. The voltage regulator is used for receiving the output voltage and converting the output voltage into a specified regulated voltage.