Uninterruptible DC Power Supply with Programmable Output
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Solution Overview
Problem
Conventional power supplies with multiple output ports are bulky, costly, and fail to protect connected loads from sudden power interruptions, leading to potential hardware damage and data loss.
Innovation Solution
An uninterruptible power supply with DC output, featuring an AC-to-DC conversion circuit, a charging and discharging module, and user-operable power modules that allow for adjustable output voltage and current selection, ensuring continuous power delivery through either the AC or DC power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional power supplies are configured with multiple output ports to support various electronic devices, then the adaptability to different devices is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent implements a universal power supply design where a single output port can serve multiple different electronic devices through programmable voltage and current parameters. The power supply can be configured via communication interface (UART, USB, etc.) to adapt to different load requirements, eliminating the need for multiple physical output ports for different device types.
Solution Approach 2:
The power supply employs dynamic parameter adjustment capability where output voltage and current can be programmatically changed based on the connected device's requirements. This dynamic adaptability allows one output port to replace multiple static output ports designed for specific device types.
2Adaptability or versatility
If conventional power supplies add multiple output ports to support more devices, then the versatility is improved, but the size and portability deteriorate
Solution Approach 1:
By making the single output port universal through programmable control, the power supply maintains compact size while supporting multiple device types. The communication interface allows configuration of voltage and current parameters to match different device requirements without adding physical ports.
3Reliability
If conventional power supplies lack uninterruptible power function, then the device complexity is reduced, but the reliability of connected loads deteriorates
Solution Approach 1:
The power supply incorporates preliminary protective actions by detecting mains power abnormalities and automatically switching to battery power before complete power failure occurs. This preemptive response protects connected loads from sudden power interruption without requiring complex user intervention.
Solution Approach 2:
The control circuit acts as an intermediary between the mains power, battery, and connected loads. It monitors power status and manages the transition between power sources, providing reliable protection while maintaining a relatively simple overall structure.
4Adaptability or versatility
If conventional power supplies use fixed output parameters, then the manufacturing precision is improved, but the adaptability to different power requirements deteriorates
Solution Approach 1:
The power supply transitions from fixed output parameters to dynamically adjustable parameters controlled via communication interface. Users can program voltage and current values according to different device requirements, achieving high adaptability with relatively simple control logic.
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
The solution reduces the size and production cost of power supplies while preventing hardware damage and data loss by allowing users to adjust power settings and ensuring uninterrupted power to connected loads during mains disruptions.
Implementation Method 1
an AC-to-DC conversion circuit coupled to an AC power source for outputting a first DC power source
Implementation Method 2
a charging and discharging module for outputting a second DC power source
Data Source
AI summary
An uninterruptible power supply with DC output includes an AC-to-DC conversion circuit coupled to an AC power source for outputting a first DC power source, a charging and discharging module for outputting a second DC power source, at least one power module coupled to the AC-to-DC conversion circuit and the charging and discharging module, a user operation interface disposed between the at least one power module and at least one load, and the user operation interface includes at least one operation unit, the power required for each load is selected by each operation unit so that at least one power module uninterruptedly supplies power to each load.