Product-Sum Operation Device Current Detection Transient Response
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Solution Overview
Problem
In product-sum operation devices, capacitors can become saturated due to transient responses, preventing the execution of product-sum operations.
Innovation Solution
A product-sum operation device with product operation units, current detection, and sum operation units that detect and calculate currents within specific time intervals to avoid capacitor saturation, utilizing magnetoresistive effect elements and optimizing input signal timing to ensure accurate operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a capacitor is used to store electric charge from transient responses in product-sum operation devices, then the device can perform product-sum operations, but the capacitor becomes saturated and the operation cannot be executed
Solution Approach 1:
The patent applies preliminary action by detecting currents at specific time intervals before the capacitor becomes saturated. The current detection unit samples currents during the transient response phase, allowing the sum operation unit to calculate results before the capacitor reaches saturation, thus enabling product-sum operations to complete successfully
Solution Approach 2:
The patent skips the problematic saturation region by rapidly detecting and processing currents during the transient response phase. By rushing through the detection process before saturation occurs, the system avoids the harmful effect of capacitor saturation while still achieving the required product-sum operation
2Device complexity
If transient responses are allowed to occur in product operation units, then the circuit can operate with simple components, but the transient responses cause capacitor saturation and prevent operation
Solution Approach 1:
The patent introduces an intermediary approach by adding a current detection unit that acts as a mediator between the product operation units and the sum operation unit. This intermediary component enables the system to monitor and process currents during transient responses, allowing the circuit to maintain simplicity while preventing capacitor saturation through controlled current detection and processing
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
Enables the execution of product-sum operations without capacitor saturation, reducing circuit complexity and costs by managing transient responses effectively.
Implementation Method 1
each of the plurality of product operation units includes a magnetoresistive effect element exhibiting a magnetoresistive effect
Data Source
AI summary
A product-sum operation device including: product operation units generating output signals by multiplying input signals corresponding to input values; a current detection unit executing a current detecting process in which a current output from the product operation units with a predetermined time delay from input of the input signal and a current output from the product operation units at an interval thereafter are detected in a time span from a first transient response to before occurrence of a second transient response, the first transient response due to charging to a parasitic capacitance of the product operation units by input of the input signal and the second transient response being due to discharging from the parasitic capacitance of the product operation units by input of the input signal; and a sum operation unit calculating a value relating to a total sum of the output signals based on currents detected.