Boosting Circuit Voltage Control Feedback
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Solution Overview
Problem
Conventional boosting circuits face challenges in generating the desired high voltage efficiently, particularly at higher frequencies, where the charges may be transmitted to the output node before the boosting nodes are fully pre-charged, resulting in an insufficient output voltage.
Innovation Solution
The proposed boosting circuit incorporates a control circuit that manages the pre-charging of boost nodes based on the voltage level of the output node, using transmission and detection circuits to ensure that charges are transmitted only when the nodes are adequately pre-charged, thereby preventing insufficient voltage levels and achieving a stable boosting voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the boosting circuit operates at higher frequencies to speed up boosting, then productivity is improved, but the charges may be transmitted before boosting nodes are fully pre-charged, causing insufficient output voltage and reducing reliability
Solution Approach 1:
The patent implements a feedback mechanism where the transmission control signal is generated based on the detection of the output node voltage level. The detection circuit monitors whether the output node has reached the target voltage, and only when this condition is met does the control circuit enable the transmission circuit to transfer charges. This feedback loop ensures that even at high operating frequencies, charges are never transmitted before the boosting nodes are adequately pre-charged, thereby maintaining output voltage reliability while supporting high-speed operation.
Solution Approach 2:
The patent employs preliminary action by pre-charging the boosting nodes before enabling charge transmission. The control circuit is designed to activate the pre-charging phase first, and only after detecting that the output node voltage has reached the predetermined level does it permit the transmission phase to begin. This sequential arrangement ensures that the necessary voltage buildup occurs before charge transfer, preventing insufficient voltage conditions even when operating at elevated frequencies.
2Use of energy by moving object
If multiple boosting circuits are distributed to work simultaneously to match consumption timing, then use of energy is improved, but device complexity increases
Solution Approach 1:
The patent introduces dynamic control to a single boosting circuit, allowing it to adapt its operation to match the timing of voltage consumption. The control circuit dynamically adjusts the charging and transmission phases based on real-time detection of output node voltage levels, enabling the circuit to operate efficiently without requiring multiple parallel circuits. This dynamic adaptation achieves energy efficiency comparable to multiple circuits while maintaining simpler hardware architecture.
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 approach ensures that the boosting circuit generates the predetermined boost voltage reliably, avoiding the issue of insufficient voltage and maintaining the desired output even at higher frequencies.
Implementation Method 1
the negative electrode of the capacitor C1 is connected with the ground, the capacitor C1 accumulates the charges corresponding to the power supply VDD
Data Source
AI summary
A boosting circuit, includes an output circuit including a first transmission circuit, transmitting charges of a first boosting node to a first output node according to a first transmission control signal, a detection circuit, detecting the voltage level of the first output node, and a pre-charge circuit pre-charging the first boosting node according a detection signal of the detection circuit; a first pump circuit includes a second transmission circuit, transmitting charges to a second output node according to a second transmission control signal, and a first capacitance unit, coupled to the first boosting node, boosting the voltage level of the first boosting node according to charges transmitted in the second output node; and a control circuit, coupled to the output circuit and the first pump circuit, controls the second transmission control signal according to the voltage level of the first output node.