Fan Motor Drive Voltage Switching for Multi-Voltage Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive voltage control systems struggle to simultaneously operate multiple drive devices with different drive voltages without increasing the number of components and costs, as they require separate voltage-dropping elements for each drive voltage, leading to prohibitive operation of devices with different drive voltages.
Innovation Solution
A drive voltage control device with a single voltage dropper and multiple switching circuits, including first to fourth switching elements, allows for simultaneous application of different drive voltages to multiple drive devices by controlling the switching elements in various ON and OFF patterns, reducing the need for multiple voltage-dropping elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a variable voltage DC power supply circuit is used to adjust drive voltage according to each drive device's rated voltage, then the drive voltage can be matched to each drive device, but multiple drive devices with different drive voltages cannot be operated simultaneously
Solution Approach 1:
The patent divides the power supply system into multiple independent power source channels (first drive power source and second drive power source) that can be selectively activated. Each power source can be independently controlled to supply different voltages to the drive devices, enabling simultaneous operation of devices with different voltage requirements without requiring a complex variable voltage power supply circuit.
2Adaptability or versatility
If separate voltage-dropping elements are installed for each drive voltage, then each drive device can receive appropriate voltage, but the number of voltage-dropping elements increases
Solution Approach 1:
The patent merges multiple voltage-dropping functions into a single voltage dropper by combining it with a multi-channel power source system. The voltage dropper works in conjunction with selectively activated power sources to provide different voltages to different drive devices, eliminating the need for separate voltage-dropping elements for each device and reducing overall system complexity.
3Adaptability or versatility
If voltage-dropping elements are used for each drive voltage, then drive devices with different voltages can be supported, but costs increase due to increased number of components
Solution Approach 1:
The patent implements a universal power supply architecture where a single voltage dropper and multi-channel power source system can serve multiple drive devices with different voltage requirements. This multi-functional design allows the same components to support various drive devices throughout their operational lifecycle, reducing the need for device-specific voltage control components and lowering overall system cost.
Data Source
AI summary
A drive voltage control device includes a first drive power source to supply a first drive voltage to a first driver and a second driver connected to the first driver in series; a second drive power source to supply a second drive voltage; a voltage dropper; a first switching circuit, a second switching circuit, a third switching circuit, a third switching circuit, and a fourth switching circuit. The first switching circuit includes a first switching element between the first drive power source and the voltage dropper on the drive voltage line, and first circuitry configured to switch the first switching element between ON and OFF. The second switching circuit includes a second switching element between the second drive power source and the voltage dropper on the drive voltage line; and second circuitry configured to switch the second switching element between ON and OFF.