Oscillator Driving Circuit With Feedback Enable Voltage Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional oscillators with poor quality may not be triggered to oscillate even when the enable signal is at a high voltage level, resulting in an undesired clock signal that disrupts the normal operation of dependent electronic components.
Innovation Solution
A driving circuit with a control unit that adjusts the voltage level of the enable signal based on the number of waves of the output signal within a predetermined period, ensuring the oscillator is triggered to oscillate and produce a required pulse signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the enable signal voltage level is raised to trigger the oscillator, then the oscillator should oscillate, but for poor quality oscillators the output signal is not a desired clock signal
Solution Approach 1:
The patent applies preliminary action by detecting the number of waves of the output signal before confirming successful oscillator triggering. The control unit counts the waves within a predetermined period, and only when the count exceeds a threshold does it determine the oscillator has been successfully triggered. This preliminary verification prevents false triggering and ensures output signal quality.
Solution Approach 2:
The patent implements feedback by using the output signal of the oscillator as a feedback input to the control unit. The control unit continuously monitors the output signal, counts the waves, and uses this information to determine whether the oscillator is properly triggered. This closed-loop feedback mechanism ensures both reliable triggering and high output signal quality.
2Device complexity
If a conventional oscillator is used without voltage adjustment, then the circuit is simple, but the oscillator may not be triggered to oscillate
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the voltage level of the enable signal based on the oscillator's triggering status. The control unit monitors the output signal and adjusts the enable signal voltage accordingly - increasing it when triggering fails and maintaining it when successful. This parameter adjustment ensures reliable oscillator triggering while keeping the circuit structure relatively simple.
3Reliability
If the enable signal voltage level is adjusted dynamically, then the oscillator can be certainly triggered, but the device complexity increases
Solution Approach 1:
The patent applies self-service by designing a system where the control unit automatically adjusts the enable signal voltage based on real-time monitoring of the output signal. The circuit self-regulates without external intervention - when the oscillator fails to trigger, the system automatically increases the enable signal voltage, and when successful, it maintains the voltage. This self-service mechanism ensures certain triggering while minimizing the need for complex external control circuits.
Data Source
AI summary
An oscillation circuit, a driving circuit thereof, and a driving method thereof are provided. The driving circuit generates a second enable signal according to an output signal of an oscillator and a first enable signal. The second enable signal is transmitted to the oscillator. When a number of waves of the output signal within a predetermined period is smaller than a predetermined value, the driving circuit adjusts a voltage level of the second enable signal. A voltage level of the first enable signal is equal to an enable voltage level. Through variations in voltage levels of the second enable signal, the oscillator is triggered to oscillate.