Electronic Control Device Power Supply Activation Circuit Segmentation
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Solution Overview
Problem
Existing electronic control devices with integrated holding circuits consume power continuously due to dual functions as power-supply activation and maintenance devices, leading to increased power consumption and inability to reset based on external factors.
Innovation Solution
An electronic control device configuration featuring a power-supply activation device, a power supply device, a signal line for maintaining power supply drive, and a reset signal line to separate and manage power supply activation and maintenance functions, allowing for reduced power consumption by resetting the activation device independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a holding circuit is used to maintain power supply activation, then the power supply device can be kept activated, but the holding circuit continuously consumes current increasing power consumption
Solution Approach 1:
The patent divides the power supply control into two separate circuits: a power supply activation device (first circuit) and a power supply maintaining device (second circuit). The activation device receives external triggers and generates activation signals, while the maintaining device uses feedback signals to sustain power supply. This segmentation allows the activation device to be reset without continuously consuming current, as it only operates during activation events rather than continuously maintaining power.
2Device complexity
If a holding circuit integrates both activation and maintenance functions, then device complexity is reduced, but the ability to reset based on external factors is lost
Solution Approach 1:
By separating the activation and maintenance functions into distinct circuits, the patent enables the activation device to respond to external triggers independently. The first circuit (activation device) can be reset by external factors without affecting the second circuit (maintaining device), providing adaptability while maintaining reasonable structural complexity through functional separation.
3Reliability
If the holding circuit is continuously operated to maintain power supply, then power supply stability is ensured, but power consumption increases
Solution Approach 1:
The patent ensures power supply stability through the maintaining device that continuously monitors feedback signals and sustains power supply when needed. However, the activation device is designed to be resettable and only actively consumes current during activation events, not continuously. This segmentation maintains reliability while reducing overall current consumption compared to a single continuously-operating holding circuit.
Solution Approach 2:
The activation device operates periodically or event-driven based on external triggers rather than continuously. It is reset after activation events, creating a periodic or intermittent operation pattern that reduces average current consumption while the maintaining device ensures continuous stability when power supply is active.
Data Source
AI summary
Provided is an electronic control device configured to reduce power consumption of a power-supply activation device while maintaining driving of a power supply device. A control unit 18 (the electronic control device) includes an arithmetic device 8, a power supply device 5 which supplies power to the arithmetic device 8, a power-supply activation device 2 which activates the power supply device 5, a power supply maintaining signal line 9 (first signal line), and a reset signal line 11 (second signal line). The power supply maintaining signal line 9 (first signal line) transmits a power supply maintaining signal (power supply drive maintaining signal) for maintaining drive of the power supply device 5, from the arithmetic device 8 to the power supply device 5. The reset signal line 11 (second signal line) transmits a reset signal for resetting the power-supply activation device 2, from the arithmetic device 8 to the power-supply activation device 2.