Semiconductor Voltage Detection and Selective Power Switching
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Solution Overview
Problem
Semiconductor devices experience unnecessary power consumption due to the supply of external supply power and ground voltage to both 1.8V and 2.5V dedicated blocks, even when only one block is selected for operation.
Innovation Solution
A semiconductor device with an external power detector and switches that selectively apply driving voltages to signal receivers based on detected external supply voltage levels, ensuring only the necessary voltage is applied to the active block, thereby preventing power consumption in the inactive block.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both 1.8V and 2.5V dedicated blocks are supplied with power simultaneously, then the device can support multiple voltage options, but unnecessary power consumption occurs in the inactive block
Solution Approach 1:
The patent extracts and removes power supply from the inactive block by using switching elements to disconnect the power source from either the 1.8V dedicated block or the 2.5V dedicated block based on which block is currently selected for operation. This ensures that only the active block consumes power while the inactive block is completely powered down.
Solution Approach 2:
The patent implements dynamic power supply control by detecting the selected voltage level and dynamically adjusting which block receives power. The power supply configuration changes based on the operational state, switching between supplying power to the 1.8V block or the 2.5V block as needed, rather than maintaining a static power supply configuration.
2Use of energy by moving object
If voltage level detection and switching control circuits are added, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent implements multi-functional circuits that can operate at different voltage levels. The signal receivers and processing circuits are designed to be universally compatible with both 1.8V and 2.5V operation, allowing the same hardware to serve multiple voltage requirements without requiring completely separate circuit implementations for each voltage level.
Data Source
AI summary
Disclosed is a semiconductor device capable of detecting levels of an external supply voltage, which includes a plurality of signal receivers for simultaneously receiving external input signals, wherein a driving voltage is applied to only one of the signal receivers according to the levels of the external supply voltage.