Oscillation Circuit Terminal Switching Without Extra Components
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Solution Overview
Problem
Existing oscillator designs require additional switch components for terminal function assignment, which can complicate height reduction and increase manufacturing costs.
Innovation Solution
A circuit unit with a selection circuit that controls switches to dynamically assign power supply and ground terminals based on applied voltages, eliminating the need for additional switch components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a switch portion is added to perform switching operation for terminal function assignment, then terminal versatility is improved, but device complexity increases
Solution Approach 1:
The circuit automatically determines terminal functions by detecting voltage levels at the terminals. The determination circuit detects whether a terminal voltage is high or low, and based on this detection, the switching circuit automatically assigns functions to terminals without requiring external control signals or additional complexity.
Solution Approach 2:
The invention uses voltage level parameters (high or low) to determine terminal functions. By changing the voltage parameter at the terminals, the system can automatically identify and assign appropriate functions, eliminating the need for complex control logic or additional switching components.
2Adaptability or versatility
If additional switch components are provided for terminal switching, then terminal adaptability is improved, but manufacturing cost increases
Solution Approach 1:
The same terminal can serve multiple functions (power supply terminal or voltage input terminal) depending on the voltage level detected. The switching circuit and determination circuit work together to enable a single terminal structure to perform multiple functions, eliminating the need for separate hardware for each function.
Solution Approach 2:
The circuit self-configures by automatically detecting voltage levels and assigning terminal functions accordingly. This self-service mechanism eliminates the need for external configuration components or complex manufacturing processes, reducing overall manufacturing cost while maintaining versatility.
3Adaptability or versatility
If switch components are added for function switching, then terminal versatility is improved, but device height increases
Solution Approach 1:
The determination circuit and switching circuit are merged into an integrated structure where the terminal function determination and switching operations are performed in a unified circuit architecture. This merging eliminates the need for separate discrete switch components that would increase device height.
Solution Approach 2:
The switching circuit is designed to perform multiple switching operations based on terminal voltage detection, consolidating multiple potential switch components into a single multi-functional switching mechanism that maintains compact device dimensions.
Data Source
AI summary
A circuit unit includes a first terminal functioning as a power supply terminal or a voltage input terminal, to which a first voltage is applied, a second terminal to which a second voltage is applied, an oscillation circuit oscillating a vibrator, a first switch electrically coupling or decoupling the first terminal and the oscillation circuit, a second switch electrically coupling or decoupling the second terminal and the oscillation circuit, and a selection circuit controlling the first switch and the second switch based on the first voltage and supplying one of the first voltage and the second voltage as a power supply voltage to the oscillation circuit.