Configurable Charge Pump Circuit for Dynamic Voltage Regulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Dickson charge pumps have a fixed number of stages and diodes, limiting their ability to regulate output voltage according to specific electronic product requirements, as they can only produce a single fixed operating voltage.
Innovation Solution
A charge pump circuit with N boost circuits, switch circuits, and a control circuit that selectively connects boost circuits to clock terminals or ground, allowing for dynamic regulation of output voltage by controlling current paths through switch circuits based on input signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Dickson charge pump uses a fixed number of diodes and capacitors, then the circuit structure is simple and reliable, but the output voltage cannot be regulated according to different product requirements
Solution Approach 1:
The patent applies the dynamics principle by making the charge pump circuit configurable through control signals. The circuit transitions from a fixed static structure to a dynamic one where the number of active stages can be adjusted by controlling the switching elements, allowing the output voltage to be regulated according to different product requirements while maintaining a relatively simple base circuit structure.
Solution Approach 2:
The patent implements parameter changes by allowing the effective number of stages in the charge pump to be varied through control signals. By changing the state of switching elements (on/off), the circuit effectively changes its operational parameters, enabling different output voltage levels from the same physical circuit structure, thus resolving the contradiction between adaptability and complexity.
2Adaptability or versatility
If Dickson charge pump uses a fixed number of stages, then the manufacturing process is simple, but the circuit cannot satisfy different operating voltage specifications
Solution Approach 1:
The patent applies universality by designing a charge pump circuit that can serve multiple voltage specification requirements using the same physical components. The circuit structure remains fixed and simple for manufacturing, but through control signals, it can be configured to output different voltage levels, making it universally applicable to different product specifications without requiring different hardware designs.
Solution Approach 2:
The patent uses dynamics to enable the same circuit to adapt to different manufacturing requirements. By incorporating controllable switching elements, the circuit can be dynamically configured during operation to meet different voltage specifications, eliminating the need for multiple fixed designs and simplifying the manufacturing process while maintaining versatility.
3Ease of operation
If Dickson charge pump outputs a fixed operating voltage, then the circuit operation is stable, but it cannot regulate voltage according to actual product requirements
Solution Approach 1:
The patent implements feedback mechanisms through control circuits that can sense the operational requirements and adjust the charge pump output accordingly. The control signals regulate the switching elements based on the actual product requirements, allowing the circuit to maintain stable operation while adapting to different voltage needs through closed-loop control.
Solution Approach 2:
The patent resolves the contradiction between operational stability and regulation flexibility by making the circuit dynamically adjustable. The base circuit structure remains stable and reliable, while the control system dynamically adjusts the active stages and switching states to provide the required voltage regulation, ensuring both stability and flexibility are achieved.
Data Source
AI summary
A charge pump circuit includes N boosting circuits, (N−2) switching circuits and a control circuit. A kth boosting circuit includes a unidirectional component and a capacitor. A positive terminal of the unidirectional component of the kth boosting circuit is electrically connected to a negative terminal of a unidirectional component of a (k−1)th boosting circuit. A first terminal of the capacitor of the kth boosting circuit is electrically connected to a negative terminal of the unidirectional component of the kth boosting circuit. A (2i−1)th switching circuit selectively conducts a current path from a (2i−1)th boosting circuit to a first clock terminal or to a ground terminal according to a control signal of the control circuit. A (2i)th switching circuit selectively conducts a current path from a (2i)th boosting circuit to a second clock terminal or to the ground terminal according to the control signal of the control circuit.