Voltage Output Circuit Power Efficiency in Memory Systems
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Solution Overview
Problem
Conventional voltage generation circuits for memory systems consume substantial power when converting high output voltages into operational voltage levels, particularly problematic for battery-powered devices.
Innovation Solution
A voltage generation circuit that generates a regulated base output voltage and disables voltage output circuits when operational voltages are stabilized, reducing power consumption by allowing output voltages to float until refreshed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage output circuits continuously generate operational voltages from high output voltage, then stable voltage supply is maintained, but power consumption increases substantially
Solution Approach 1:
The voltage output circuits are disabled periodically and re-enabled only when voltage refresh is needed, rather than operating continuously. The controller monitors voltage levels and re-enables circuits only when voltages fall below threshold levels, creating a periodic on-demand operation pattern that reduces power consumption while maintaining stability.
Solution Approach 2:
The system uses the inherent capacitance of output circuits to maintain voltages without active generation. When voltage output circuits are disabled, the output voltages float and are maintained by stored charge in parasitic capacitances, allowing the system to serve itself without continuous power input.
2Use of energy by moving object
If voltage output circuits are disabled to reduce power consumption, then power efficiency improves, but voltage stability may be compromised
Solution Approach 1:
The controller monitors output voltage levels and uses feedback to determine when to re-enable voltage output circuits. When voltages fall below predetermined threshold levels, the controller re-enables the circuits to refresh voltages, ensuring stability is maintained only when necessary while maximizing power efficiency during normal operation.
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 enhances power efficiency by minimizing continuous power consumption in voltage output circuits while maintaining stable operational voltages in memory systems.
Implementation Method 1
The charge pump circuit 102 operates to boost a lower input voltage (VIN) to produce a higher output voltage (VOUT)
Implementation Method 2
The output voltage is coupled to a decoupling capacitor (CD) 104
Data Source
AI summary
Unified voltage generation techniques for efficiently generating a plurality of operational voltages for use within an electronic device, such as a memory system (e.g., memory product) providing data storage, are disclosed. A voltage generation circuit can generate a regulated base output voltage. The voltage generation circuit can include one or more voltage output circuits that produce different operational voltages from the regulated base output voltage. According to one aspect of the invention, the voltage output circuits can be disabled when the different operational voltages are at their appropriate voltage potentials, thereby reducing power consumption by the voltage output circuits. The voltage generation circuit is therefore able to operate with improved power efficiency.