Linear Transformer Winding Switching for AC Brownout Prevention
Solution Overview
Problem
Conventional air conditioning systems are unable to dynamically adjust to varying voltage conditions, leading to brownout conditions that can damage components and render systems inoperable, necessitating costly preventative measures.
Innovation Solution
An air conditioning system with a linear transformer having multiple primary windings and a secondary winding, coupled with a switching circuit and a controller that monitors operational parameters to select an appropriate winding, thereby controlling output voltage to reduce brownout conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional air conditioning systems use fixed voltage output, then the system structure is simple, but brownout conditions occur during varying voltage conditions causing component damage and system failure
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between multiple primary windings of the transformer based on detected line voltage conditions. The controller dynamically selects which winding to use, changing the transformer's operating state in real-time to maintain stable output voltage and prevent brownout conditions, thus resolving the contradiction between reliability and fixed structure.
Solution Approach 2:
The patent changes the electrical parameter (voltage ratio) of the transformer by selecting different primary windings with different turns ratios. This allows the system to adapt to varying input voltage conditions by changing the transformer's effective parameters, maintaining reliable operation without requiring a completely complex voltage regulation system.
2Adaptability or versatility
If the system uses multiple primary windings with switching circuit, then voltage adaptability improves, but device complexity increases
Solution Approach 1:
The patent makes the existing transformer multi-functional by providing multiple primary windings that can serve different voltage adaptation purposes. The same transformer structure performs both standard transformation and voltage adaptation functions, reducing the need for separate voltage regulation equipment and minimizing the increase in overall device complexity.
Solution Approach 2:
The controller acts as an intermediary that manages the complexity of switching between multiple windings. It monitors line voltage conditions and automatically selects the appropriate winding configuration, shielding the user from the complexity while enabling voltage adaptability. The switching circuit serves as an intermediary mechanism that implements the controller's decisions with minimal additional complexity.
3Reliability
If preventative measures against brownout are implemented, then system reliability improves, but manufacturing cost increases
Solution Approach 1:
The system protects itself against brownout conditions by automatically detecting voltage problems and switching to an appropriate winding configuration. This self-protecting mechanism eliminates the need for external protective devices like voltage regulators or surge protectors, reducing manufacturing costs while maintaining reliability.
Solution Approach 2:
The patent combines the voltage adaptation function with the existing transformer structure by incorporating multiple primary windings into the same component. This merging of functions avoids the need for separate protective equipment, reducing overall system cost while providing reliable brownout prevention.
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 system dynamically adjusts to varying voltage conditions, reducing the occurrence of brownout damage and maintaining reliable operation while minimizing repair and maintenance costs.
Implementation Method 1
a linear transformer having a plurality of primary windings and at least one secondary winding
Data Source
AI summary
An air conditioning system is provided. The air conditioning system can include an air conditioner unit having a linear transformer and a switching circuit. The linear transformer can include a plurality of primary windings and at least one secondary winding, and the switching circuit can be coupled to the plurality of primary windings. The air conditioning system can include a remote user interface coupled to the at least one secondary winding and a controller operably coupled to the air conditioner unit and the remote user interface. The controller can be configured to control output voltage from the air conditioner unit to the remote user interface by monitoring one or more operational parameters of the air conditioning system, determining a selected winding of the plurality of primary windings based at least in part on the one or more operational parameters, and configuring the linear transformer to operate with the selected winding.