Semiconductor Current Compensator for Voltage Stability
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Solution Overview
Problem
Semiconductor memory devices face instability in operation voltage due to excessive current consumption by peripheral circuits, leading to a higher demand for additional current, which complicates the design and area requirements of these devices.
Innovation Solution
Incorporating a current compensator circuit with an OP-amplifier and capacitor connected to the power output line, along with a control logic to enable compensation control signals during peak current generation, to stabilize the operation voltage and reduce area requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If additional current supply circuits are added to meet peak current demands, then the current supply capability is improved, but the device area increases
Solution Approach 1:
The patent introduces a current compensator as an intermediary component that includes an operational amplifier and a capacitor. This compensator is connected between the power output line and ground, and it actively compensates for voltage drops during peak current consumption by injecting compensating current. The compensator acts as a mediator that stabilizes the power supply voltage without requiring additional power supply circuits, thereby meeting peak current demands while avoiding area expansion.
Solution Approach 2:
The patent changes the operating parameters of the existing power output line by introducing a compensating current through the operational amplifier and capacitor combination. The compensator dynamically adjusts the effective impedance and current delivery capability of the power line by adding a reactive component (capacitor) that supplies leading current during peak demand periods. This parameter change enables the existing power line to deliver higher peak current without additional infrastructure.
2Power
If larger power output lines are used to handle peak current, then the current handling capability is improved, but the area and complexity increase
Solution Approach 1:
The current compensator serves as an intermediary that enhances the current handling capability of the existing power output line without requiring the line itself to be larger or more complex. The operational amplifier and capacitor combination actively manages current distribution, allowing the original power line to handle peak currents that would otherwise exceed its capacity. This approach maintains the simplicity of the power distribution network while achieving higher current handling capability.
3Stability of the object's composition
If compensation circuits are added to stabilize operation voltage during peak current, then the voltage stability is improved, but the device area increases
Solution Approach 1:
The patent introduces a compact current compensator as an intermediary stabilization mechanism. This compensator uses an operational amplifier configured with a capacitor to create a lead compensator network that proactively supplies current before voltage drops occur. The compensator is connected in parallel with the load and draws minimal area compared to traditional voltage regulation circuits. It stabilizes the operation voltage during peak current by injecting compensating current that counteracts voltage sags, achieving voltage stability without significant area penalty.
Solution Approach 2:
The lead compensator circuit performs preliminary action by anticipating and counteracting voltage drops before they significantly affect the operation voltage. The operational amplifier and capacitor combination is configured to provide leading current that preemptively compensates for the anticipated current demand spikes. This preliminary compensation action maintains voltage stability proactively rather than reactively, allowing for a more compact design compared to traditional feedback-based voltage regulation that requires larger components and more complex control circuits.
Data Source
AI summary
The present technology relates to an electronic device, and more particularly, to a semiconductor device. The semiconductor device includes a peripheral circuit, a power output line connected to the peripheral circuit and configured to transmit an operation voltage to the peripheral circuit, a current compensator including an OP-amplifier connected to the power output line, and a capacitor connected between an output terminal of the OP-amplifier and the power output line.