Power Supply Reconnection Timing for Low No-Load Detection Power
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Solution Overview
Problem
Conventional power supply systems consume excess energy due to continuous detection for connection status with power-receiving devices and fail to provide immediate power resumption when devices are quickly reconnected.
Innovation Solution
A power supply system with a controller that counts connection duration and resets the count value to conserve energy and ensure immediate power resumption when devices are temporarily disconnected and reconnected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power supply device periodically detects connection status at regular intervals, then it can detect whether a power-receiving device is connected, but it increases power consumption in no-load condition
Solution Approach 1:
The patent applies periodic action by implementing connection status detection at regular intervals rather than continuously. The controller is configured to detect connection status periodically, which reduces power consumption compared to continuous detection while still maintaining reliable connection monitoring. This resolves the contradiction by transforming continuous operation into periodic operation.
2Speed
If the power supply device stops providing power immediately upon detecting disconnection, then it responds quickly to connection changes, but it fails to resume power immediately when the device is quickly reconnected
Solution Approach 1:
The patent applies preliminary action by implementing a preliminary detection phase before stopping power supply. When disconnection is detected, the controller first performs additional connection detections at predetermined intervals to confirm the disconnection status before actually stopping power supply. This preliminary confirmation prevents premature power interruption and ensures immediate resumption if the device was temporarily disconnected and reconnected, thus maintaining power supply continuity while still responding to genuine disconnections.
Data Source
AI summary
A power supply system includes a power supply device and a controller that is electrically connected to the power supply device. The controller is configured to allow the power supply device to detect whether a power-receiving device is electrically connected to the power supply device. The controller is further configured to, in response to determining that the power supply device is electrically connected to the power-receiving device, start to count a count value. The controller is further configured to, in response to determining that the count value is less than a threshold value, reset the count value, where the count value is for confirming whether the power-receiving device is still being electrically connected to the power supply device.