High Frequency Oscillator Matching Circuit Switching
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Solution Overview
Problem
High frequency oscillators and wireless power supply devices face inefficiencies due to the use of mechanical switches, which lead to abrasion and power loss, and semiconductor switches cause distortion, necessitating the need for high-frequency operation that increases costs.
Innovation Solution
A high frequency oscillator design incorporating a matching unit with rectification element parts and switch parts that switch the state of matching circuits using direct current or a frequency lower than the high frequency power, allowing for the use of low-performance switch parts at a lower cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical switches such as relays are used for switching matching circuits, then the matching circuits can be switched on/off, but abrasion of contact parts and operation parts occurs due to long use
Solution Approach 1:
The patent replaces mechanical switches with semiconductor switching elements to eliminate mechanical contact and abrasion. The semiconductor elements perform the switching function electronically, removing moving parts that would otherwise wear down through repeated mechanical contact.
Solution Approach 2:
The patent introduces rectification element parts as intermediaries between the high frequency power and the switching elements. These rectification elements convert high frequency power to direct current, allowing standard semiconductor switches to control the matching circuits without requiring high-frequency operation, thus avoiding distortion while maintaining reliability.
2Reliability
If contactless switching elements composed of semiconductor devices are used, then mechanical abrasion is avoided, but distortion of high frequency power and power loss occur
Solution Approach 1:
The patent introduces rectification element parts as intermediaries between the high frequency power and the switching elements. These rectification elements convert high frequency power to direct current, allowing standard semiconductor switches to control the matching circuits without requiring high-frequency operation, thus avoiding distortion while maintaining reliability.
Solution Approach 2:
The patent changes the operating frequency parameter of the switching elements from high frequency to low frequency (or DC) by using rectification element parts. This parameter change allows the use of standard semiconductor switches that do not cause high frequency distortion, while still achieving the required switching function through the rectified current.
3Loss of energy
If semiconductor switching elements operating at high frequency are used to avoid distortion, then switching performance improves, but device complexity and cost increase
Solution Approach 1:
The patent introduces rectification element parts as intermediaries between the high frequency power and the switching elements. These rectification elements convert high frequency power to direct current, allowing standard semiconductor switches to control the matching circuits without requiring high-frequency operation, thus avoiding distortion while maintaining reliability.
Solution Approach 2:
The patent changes the operating frequency parameter of the switching elements from high frequency to low frequency (or DC) by using rectification element parts. This parameter change allows the use of standard semiconductor switches that do not cause high frequency distortion, while still achieving the required switching function through the rectified current.
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 design enables efficient switching of matching circuits without the need for high-frequency operation, reducing power loss and distortion, and allows for the use of low-cost, low-performance switch parts, simplifying the structure and reducing manufacturing costs.
Implementation Method 1
The rectification element parts rectify the high frequency power supplied from the high frequency generation part to the oscillation part
Data Source
AI summary
A high frequency oscillator has a high frequency generation part, an oscillation part, a matching unit, rectification element parts and switch parts. The oscillation part oscillates high frequency power generated by the high frequency generation part. The matching unit is arranged between the high frequency generation part and the oscillation part, and has one or more capacitors and matching circuits having difference characteristics so as to perform matching between the high frequency generation part and the oscillation part. The rectification element parts and the matching circuits are arranged in one-to-one correspondence. The rectification element parts rectify high frequency power supplied from the high frequency generation part to the oscillation part. The switch part is connected to the corresponding rectification element part to switch the corresponding capacitor connected to the corresponding matching circuit through the corresponding rectification element part.