Voltage Control Circuit for Controller Chip Stability
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Solution Overview
Problem
Controller chips, such as FPGA, ARM, and CPU, face instability due to fluctuations in power supply voltage caused by external interference or internal load changes, leading to unstable operating states.
Innovation Solution
A voltage control circuit comprising a controller and a voltage adjustment circuit that acquires the power supply voltage, determines deviations from a target voltage, and adjusts the voltage using a PWM signal to maintain stability, eliminating the need for expensive power management chips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a power supply voltage is provided to controller chips, then the chips can operate, but voltage fluctuations cause instability in the operating state
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors the power supply voltage and adjusts the PWM signal accordingly. When voltage deviation is detected, the controller modifies the PWM duty cycle to regulate the voltage back to the target level, creating a closed-loop control system that maintains stable operation despite external disturbances
Solution Approach 2:
The controller chip performs self-regulation of its power supply voltage by monitoring its own operating conditions and automatically adjusting the voltage through PWM control. This self-service capability eliminates the need for external power management chips, as the controller manages its own power stability independently
2Reliability
If expensive power management chips are used to stabilize voltage, then reliability improves, but device complexity and cost increase
Solution Approach 1:
The patent merges the voltage regulation function into the controller chip itself, combining the controller and power management functions into a single integrated unit. This eliminates the need for separate power management chips, reducing both device complexity and component count while maintaining power supply stability
Solution Approach 2:
The controller chip is designed to perform multiple functions: it not only executes control logic but also monitors power supply voltage and regulates it through PWM output. This multi-functionality allows the controller to serve both as a processing unit and a power management unit, simplifying the overall system architecture
3Reliability
If the controller monitors and adjusts power supply voltage, then voltage stability improves, but the controller's functional complexity increases
Solution Approach 1:
The controller performs self-diagnosis and self-regulation by monitoring its own power supply voltage and automatically adjusting it through PWM control. This self-service approach consolidates control functions within a single device, managing complexity internally rather than adding external components
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 solution stabilizes the power supply voltage, enhancing the reliability and stability of controller chips by automatically adjusting voltage fluctuations, and is applicable to general DC-DC chips, improving product reliability and eliminating the need for specialized power management chips.
Implementation Method 1
The controller includes a PWM circuit, and the PWM circuit is configured to provide a PWM signal as the target control signal
Data Source
AI summary
This application provides a voltage control circuit, method and device, and a storage medium. The voltage control circuit includes: a controller and a voltage adjustment circuit both coupled to a power supply terminal for providing a power supply voltage. The controller is configured to: acquire a power supply voltage value at the power supply terminal; determine whether the acquired power supply voltage value deviates from a target power supply voltage value; and determine, in response to the acquired power supply voltage value deviating from the target power supply voltage value, a target control signal associated with the target power supply voltage value; and provide the target control signal to the voltage adjustment circuit. The voltage adjustment circuit is configured to adjust the power supply voltage value at the power supply terminal to the target power supply voltage value according to the target control signal.