Integrated Motor Power Regulation With Multi-Output Isolation Transformer
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Solution Overview
Problem
The drive system of motor power source regulation circuits is complex and inefficient, with low reliability due to separate control of independent rectifier and drive modules, particularly in systems with multiple motor loads.
Innovation Solution
A motor power source regulation circuit integrating a power factor correction circuit, isolation circuit, and multiple power source conversion circuits, controlled by a single control circuit, which converts AC input signals to DC or AC signals for DC and AC motors, utilizing a multi-winding transformer for isolation and efficient energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If independent rectifier modules and drive modules are used separately for each motor load, then each module can be independently controlled, but the entire drive system becomes complex and low in efficiency and reliability
Solution Approach 1:
The patent merges multiple independent rectifier modules and drive modules into a single integrated power source regulation circuit. The circuit includes a unified rectifier module that converts AC input signals to DC, a DC-to-AC conversion module that generates multiple AC output signals, and a single control circuit that manages all motor loads. This integration maintains independent control capability through the control circuit's ability to regulate each output separately while eliminating the complexity of multiple separate modules.
Solution Approach 2:
The integrated power source regulation circuit serves multiple motor loads simultaneously with different power characteristics through a single multi-functional system. The control circuit can independently regulate each AC output signal to match the specific requirements of different motor loads, making the single circuit universal for driving multiple types of motors without requiring separate dedicated circuits for each load.
2Measurement precision
If multiple independent control circuits are used for each motor load, then each motor can be precisely controlled, but the system reliability decreases due to more components
Solution Approach 1:
The patent combines multiple control functions into a single control circuit that manages all motor loads. This unified control circuit maintains precise control over each motor by independently regulating the AC output signals based on the specific power characteristics of each load, while improving reliability by reducing the total number of control circuits and components in the system.
3Adaptability or versatility
If separate control circuits are used for each motor load, then each load can be optimized, but the overall system efficiency is reduced due to redundant components
Solution Approach 1:
The patent integrates multiple power conversion functions into a single efficient circuit architecture. The unified rectifier module converts AC to DC once, and the DC-to-AC conversion module generates multiple AC outputs, eliminating redundant conversion stages. The single control circuit optimizes each motor load by independently regulating output signals while operating within a unified efficient power conversion system, thereby improving overall system productivity.
Solution Approach 2:
The integrated power source regulation circuit provides multi-functional capability to handle different motor load requirements through a single efficient system. The control circuit can independently optimize each output channel for different power characteristics while sharing common power conversion resources, achieving both load-specific optimization and high overall system efficiency without redundant components.
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
This integration simplifies hardware circuits, enhances reliability and efficiency, ensures timely control, and meets electrical safety regulations by integrating power source conversion and isolation, optimizing motor drive conversion efficiency and safety.
Implementation Method 1
a power factor correction circuit for coupling with an AC power source to receive an AC input signal from the AC power source and convert the AC input signal to a first DC signal
Implementation Method 2
the primary winding receives the first AC signal from the first switch sub-circuit and converts the first AC signal to two or more second AC signals by utilizing two or more pieces of the secondary winding
Data Source
AI summary
A motor power source regulation circuit, a control method and an electronic device are provided. The motor power source regulation circuit includes a power factor correction circuit, an isolation circuit, a first power source conversion circuit, a second power source conversion circuit and a control circuit. The isolation circuit includes a first switch sub-circuit and an isolation transformer. The power factor correction circuit regulates an AC input signal to a first DC signal. The first switch sub-circuit converts the first DC signal to a first AC signal. The isolation transformer converts the first AC signal to two or more second AC signals. The first power source conversion circuit converts the second AC signal to a DC drive signal and outputs it to a DC motor. The second power source conversion circuit converts the second AC signal to an AC drive signal and outputs it to an AC motor.