Multi-Voltage Monitoring Circuit for Storage Power-On Validation
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Solution Overview
Problem
Storage systems face issues with accurate read/write operations due to voltage domains not meeting requirements, affecting normal power-on states, which the monitoring circuit and storage system aim to address by ensuring that multiple voltage domains are properly powered on.
Innovation Solution
A monitoring circuit with a voltage detection module and logic circuit module to detect and validate whether first, second, and third voltage domains meet preset values, generating a monitoring signal indicating a valid state for correct operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voltage domains are monitored to ensure proper power-on state, then read/write operation accuracy is improved, but device complexity increases due to additional monitoring circuitry
Solution Approach 1:
The patent combines multiple voltage domain monitoring functions into a single integrated monitoring circuit. The circuit uses shared detection units and logic circuits to monitor multiple voltage domains (VDD1, VDD2H, VDD2L) simultaneously, reducing overall circuit complexity while maintaining comprehensive monitoring capability. The detection units can be configured to monitor different voltage thresholds for each domain using the same hardware resources.
Solution Approach 2:
The monitoring circuit is designed with universal detection units that can monitor multiple voltage domains through configuration. The same detection unit structure can be applied to monitor VDD1, VDD2H, and VDD2L domains by adjusting detection thresholds, making the circuit multi-functional rather than requiring separate dedicated circuits for each voltage domain.
2Reliability
If multiple voltage domains are monitored simultaneously, then system reliability is improved, but measurement precision deteriorates due to signal interference
Solution Approach 1:
The monitoring circuit divides the monitoring function into separate detection units for each voltage domain (VDD1 detection unit, VDD2H detection unit, VDD2L detection unit). Each detection unit independently monitors its assigned voltage domain with dedicated comparison logic, preventing signal interference between domains while maintaining simultaneous monitoring capability. This segmentation allows each unit to achieve high measurement precision for its specific domain.
Solution Approach 2:
The patent introduces separate detection units as intermediary components between the voltage domains and the central logic circuit. Each detection unit acts as a mediator that converts analog voltage signals into standardized detection signals, isolating the voltage domains from direct interaction and preventing signal interference while enabling reliable simultaneous monitoring.
Data Source
AI summary
The embodiment the disclosure provides a monitoring circuit and a storage system. The monitoring circuit includes a voltage detection module and a logic circuit module. The voltage detection module is configured to output a first detection signal, a second detection signal and a third detection signal through a first node, a second node and a third node, respectively. The logic circuit module is configured to output a monitoring signal through a fourth node; determine whether the first detection signal has a first preset level, whether the second detection signal has a second preset level, and whether the third detection signal has a third preset level, respectively; determine the monitoring signal to be in a valid state in response to the first detection signal having the first preset level, the second detection signal having the second preset level and the third detection signal having the third preset level.