Motor Control Voltage Divider for Noise-Resistant ADC Decoding
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Solution Overview
Problem
Traditional motor units in high-voltage configurations suffer from insufficient adjustable function and resolution, and generate switching noise that affects accuracy, particularly when used in high-voltage settings.
Innovation Solution
A motor unit comprising a motor controller with a resistive voltage divider, a driving circuit, a control unit, an analog-to-digital converter, a switching circuit, and a counting unit, which includes a prevention mechanism to mitigate noise interference, allowing for improved parameter setting and decoding accuracy by generating multiple voltage levels and controlling the analog-to-digital converter's operation based on an enable signal and time interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional integrated circuit pin setting method is used, then the motor unit can operate, but the adjustable function and resolution are insufficient
Solution Approach 1:
The patent changes the parameter representation from simple high/low pin levels to multi-level voltage divisions. By introducing a voltage divider that generates multiple voltage levels (first voltage, second voltage, third voltage) from a single power supply voltage, the system achieves higher resolution and more adjustable functions without increasing pin count. The control unit interprets these different voltage levels as distinct parameter values, enabling fine-grained control.
2Power
If motor operates in high-voltage configuration, then power supply capability is improved, but switching noise increases and affects decoding accuracy
Solution Approach 1:
The patent introduces an intermediary mechanism - the voltage divider - that converts the high power supply voltage into multiple lower voltage levels for parameter encoding. This intermediary structure allows the system to maintain high power supply capability while using lower voltage levels for sensitive decoding operations, thereby reducing noise interference and improving measurement precision.
Solution Approach 2:
The voltage divider performs preliminary voltage division before the parameter encoding process. By pre-generating the multiple voltage levels needed for high-resolution parameter setting, the system avoids the need for high-voltage switching during decoding operations, thus preventing noise generation at critical moments.
3Adaptability or versatility
If voltage divider generates multiple voltage levels, then function and resolution are enhanced, but device complexity increases
Solution Approach 1:
The voltage divider circuit serves multiple functions: it provides power supply voltage division for parameter encoding, generates reference volt for analog-to-digital conversion, and enables multiple adjustable functions through different voltage level combinations. By making this single circuit multi-functional, the patent achieves high parameter resolution without proportionally increasing overall device complexity.
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 motor unit provides enhanced function and resolution for each parameter, effectively reducing decoding errors and increasing accuracy by managing noise interference, enabling reliable operation in high-voltage configurations.
Implementation Method 1
The voltage divider may comprise a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor. The first resistor is coupled to the second resistor and receives the input voltage for generating the first voltage to the switching circuit.
Data Source
AI summary
A motor unit comprises a driving circuit, a control unit, an analog-to-digital converter, a voltage divider, and a voltage converter. The driving circuit is coupled to a motor for driving the motor. The control unit is configured to generate a plurality of control signals to control the driving circuit. The analog-to-digital converter receives an output voltage for generating a digital signal to the control unit. The voltage divider receives an input voltage for generating a first voltage. The voltage converter converts a power supply voltage into the input voltage. The motor unit may execute a prevention mechanism to avoid misjudging the digital signal. The motor unit may be applied to a high-voltage configuration.