Dynamic Voltage Regulation for Camera Motor Driving Accuracy
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Solution Overview
Problem
Existing camera modules in portable electronic devices face high power consumption and low energy efficiency due to constant driving voltage, and pulse width modulation introduces noise, reducing driving accuracy.
Innovation Solution
A driving apparatus with a control module, driving module, and voltage regulation unit that adjusts voltage based on displacement information to match the required driving current, reducing power consumption and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If pulse width modulation is used to change driving voltage and frequency to drive the motor, then power consumption is reduced and energy efficiency is improved, but large noises are introduced resulting in poor driving accuracy
Solution Approach 1:
The patent changes the voltage parameter dynamically based on displacement information without using PWM. The voltage regulation unit adjusts the driving voltage according to the magnitude of displacement, allowing smooth voltage variation that reduces power consumption while avoiding the noise introduction of PWM, thus maintaining driving accuracy.
2Ease of operation
If driving current is changed without changing driving voltage to achieve displacement, then the motor can be driven simply, but power consumption increases with low energy efficiency ratio
Solution Approach 1:
The patent makes the driving voltage dynamic rather than constant. The voltage regulation unit adjusts the driving voltage in coordination with the driving current based on displacement information, enabling the system to adapt to different operating conditions and reduce power consumption while maintaining simple control through unified voltage-current coordination.
3Reliability
If constant driving voltage is used to drive the motor, then the system is simple and reliable, but power consumption is high and energy efficiency is low
Solution Approach 1:
The patent introduces feedback based on displacement information. The control module receives displacement information and uses it to regulate the driving voltage through the voltage regulation unit. This feedback mechanism allows the system to adjust voltage according to actual motor needs, reducing power consumption while maintaining reliability through coordinated voltage-current control.
Data Source
AI summary
A driving apparatus, an image collection module, and a method for voltage regulation are provided. The driving apparatus includes: a control module, a driving module, and a voltage regulation unit. The control module is configured to acquire displacement information of an image collection apparatus, transmit a driving current instruction to the driving module based on the displacement information, and transmit a voltage regulation signal to the voltage regulation unit based on the displacement information; the driving module is configured to generate a driving current based on the driving current instruction; and the voltage regulation unit is configured to regulate a voltage inputted from a power supply to a driving voltage matching the driving current based on the voltage regulation signal, and transmit the driving voltage to the driving module, so that the driving module drives a motor of image collection apparatus through the driving current and the driving voltage.