Voltage Generation Circuit Dynamic Driving Voltage Control
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Solution Overview
Problem
Existing semiconductor integrated circuits face challenges in maintaining stable voltage levels for internal voltages, as current voltage generation circuits are not efficient in dynamically adjusting voltage levels in response to changes in power supply voltages.
Innovation Solution
A voltage generation circuit comprising a voltage detection unit, a first voltage control unit, a voltage generation unit, and a second voltage control unit, which work together to detect voltage levels, generate control signals, and adjust driving voltages to maintain predetermined voltage levels by enabling or disabling signals to incrementally raise internal voltages based on detection signals and enable/disable voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the voltage generation circuit uses a fixed driving voltage, then the circuit structure is simple, but the internal voltage level cannot be maintained at a predetermined level when power supply conditions change
Solution Approach 1:
The patent applies dynamics by making the driving voltage adjustable rather than fixed. The second voltage control unit dynamically changes the driving voltage level based on the state of the detection signal, enabling the voltage generation unit to adapt to different power supply conditions and maintain stable internal voltage levels.
Solution Approach 2:
The patent implements feedback through the voltage detection unit that continuously monitors the internal voltage level and generates a detection signal. This feedback mechanism allows the system to detect when the internal voltage drops below a threshold and trigger appropriate corrective actions by controlling the voltage generation unit.
2Reliability
If the voltage generation circuit dynamically adjusts driving voltage, then the internal voltage stability is improved, but the control mechanism becomes more complex
Solution Approach 1:
The patent segments the voltage control function into two distinct units: the first voltage control unit that generates the voltage control signal based on the detection signal, and the second voltage control unit that adjusts the driving voltage level. This segmentation allows each unit to perform a specific function, simplifying the overall control mechanism while maintaining effective voltage stability.
Solution Approach 2:
The patent changes the voltage level parameter of the driving voltage dynamically based on the detection signal state. When the detection signal is enabled, the driving voltage is set to a first level; when disabled, it switches to a second level. This parameter change approach enables adaptive voltage control without requiring complex continuous adjustment mechanisms.
3Reliability
If the voltage generation unit operates continuously at high voltage, then the internal voltage can be maintained, but energy consumption increases
Solution Approach 1:
The patent employs periodic action by using the oscillating voltage control signal from the oscillator to periodically drive the voltage generation unit. This allows the internal voltage to be maintained through periodic charging cycles rather than continuous high-power operation, reducing overall energy consumption while ensuring voltage stability.
Solution Approach 2:
The patent dynamically adjusts the driving voltage level based on actual needs. The second voltage control unit switches between a first voltage level (when detection signal is enabled) and a second voltage level (when disabled), allowing the system to use higher voltage only when necessary to maintain the internal voltage, thereby reducing unnecessary energy consumption.
Data Source
AI summary
A voltage generation circuit includes a voltage detection unit configured to detect a voltage level of an internal voltage and generate a detection signal, a first voltage control unit configured to be applied with a driving voltage and generate a voltage control signal in response to the detection signal, a voltage generation unit configured to generate the internal voltage in response to the voltage control signal, and a second voltage control unit configured to change a voltage level of the driving voltage in response to a voltage generation enable signal and the detection signal.