Voltage Supply Circuit Rising Time Control
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Solution Overview
Problem
Integrated circuits face challenges in accurately controlling the rising time of output voltage, which is crucial for efficient operation, as existing voltage supply circuits often require complex and time-consuming corrections due to inaccurate modeling, leading to potential operational failures.
Innovation Solution
A voltage supply circuit with a pump voltage generator, clock generator, regulator, and rising time controller that adjusts the input voltage level and clock signals to optimize the rising time of the output voltage, allowing flexible control based on environmental conditions and specific requirements of the integrated circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the pump circuit is designed according to a fixed load model, then the rising time of output voltage can be set, but the design requires accurate modeling which is complicated and time-consuming, and may not operate normally if modeling is inaccurate
Solution Approach 1:
The patent implements dynamic adjustment of the pump circuit operation by varying the number of active pump units based on detected load conditions. The control circuit dynamically switches between different pump configurations (e.g., 1-4 pump units) to match the actual load requirements, replacing static modeling with real-time adaptive control. This resolves the contradiction by achieving precise rising time control without requiring complex predetermined modeling.
Solution Approach 2:
The patent incorporates a feedback mechanism where the control circuit detects the actual load on the output node and adjusts the pump circuit operation accordingly. By monitoring output voltage conditions and adjusting pump unit activation in response, the system achieves accurate rising time control adaptively, eliminating the need for complex preliminary modeling while maintaining precision.
2Adaptability or versatility
If the pump circuit uses a fixed configuration, then the design is simpler, but the rising time of output voltage cannot be flexibly adjusted according to different load conditions
Solution Approach 1:
The patent divides the pump circuit into multiple independent pump units (first through fourth pump units) that can be selectively activated. Each pump unit can operate independently or in combination with others, allowing the system to adjust the effective pump capacity in discrete steps. This segmentation enables flexible adaptation to different load conditions while keeping each individual pump unit relatively simple in design.
Solution Approach 2:
The patent implements dynamic reconfiguration of the pump circuit by controlling which pump units are active based on detected load conditions. The control circuit dynamically adjusts the number of operating pump units (from 1 to 4 units) to match the required output voltage rising time, providing adaptability without requiring a completely complex redesign for each scenario.
3Reliability
If the integrated circuit uses high voltage for internal operations, then the operational capability is improved, but the time to generate and supply high voltage from low input power source increases program operation time
Solution Approach 1:
The patent prepares the pump circuit for rapid voltage generation by pre-configuring multiple pump units in standby positions. When high voltage is needed, the control circuit can immediately activate the appropriate number of pump units without delay for reconfiguration. This preliminary preparation of the pump architecture enables rapid voltage generation while maintaining the reliability needed for internal circuit operations.
Solution Approach 2:
The patent uses dynamic control of pump unit activation to optimize the voltage generation time. By detecting the specific voltage requirement and load conditions, the control circuit activates only the necessary number of pump units (from 1 to 4), generating the required high voltage in the minimum time needed while ensuring reliable supply to internal circuits.
Data Source
AI summary
A voltage supply circuit includes a pump voltage generator for generating an input voltage by changing a power source voltage to a desired level and changing a level of the input voltage according to a rising time of an operating voltage.