Micro-Current Shower Head Circuit With Feedback Voltage Boosting
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Solution Overview
Problem
Existing beauty instruments requiring external power supplies face safety risks due to water ingress and may not deliver sufficient micro-current for effective skin massage, leading to inconsistent beauty effects.
Innovation Solution
A constant current output circuit with a voltage boosting module, logic controller, and threshold voltage comparisons ensures a stable micro-current output, adjusting voltage levels to maintain effective current values and featuring an indicator light for user feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a micro-current shower head simply connects a human body between positive and negative electrodes of a power supply, then the device structure is simple, but the micro-current may be insufficient and the beauty effect is not achieved
Solution Approach 1:
The patent implements a feedback control system where the controller continuously monitors the micro-current output and adjusts the power supply parameters accordingly. This ensures the micro-current remains within the effective range for skin massage while maintaining device simplicity through automated regulation rather than complex manual adjustment mechanisms.
Solution Approach 2:
The patent dynamically adjusts power supply parameters (voltage, current) based on real-time detection of the micro-current output. By changing these parameters adaptively, the system ensures sufficient micro-current effectiveness without requiring a fundamentally more complex device structure, resolving the contradiction between simplicity and reliability.
2Power
If beauty instruments use external power supplies, then they can provide sufficient power for operation, but they face safety risks due to water ingress and cannot be used in shower environments
Solution Approach 1:
The patent employs a battery-powered design with a waterproof rating that allows safe use in shower environments. Rather than using vulnerable external power supplies, the system uses integrated rechargeable batteries that can be safely charged and used in wet conditions, prioritizing safety while maintaining sufficient power for micro-current generation.
Solution Approach 2:
The patent introduces waterproof design as an intermediary solution that enables safe operation in shower environments. The waterproof construction acts as a mediator between the power supply system and the wet shower environment, allowing the device to maintain both power capability and water safety simultaneously.
3Ease of operation
If the micro-current value is not maintained within the effective range, then the device operation is simple, but the beauty effect is not achieved and user safety may be compromised
Solution Approach 1:
The patent implements automatic feedback control where the controller monitors the micro-current output and adjusts power supply parameters in real-time. This maintains the micro-current within the effective and safe range (typically 10-1000 microamperes) without requiring user intervention, thus preserving operational simplicity while ensuring reliability and safety.
Solution Approach 2:
The system performs self-regulation of the micro-current output through automated control algorithms. The device monitors its own output and adjusts parameters autonomously to maintain effectiveness and safety, eliminating the need for complex manual adjustment mechanisms while ensuring reliable operation within the therapeutic current range.
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 circuit guarantees a safe and consistent micro-current output within the effective range, enhancing user safety and effectiveness of skin massage without external power supply limitations.
Implementation Method 1
the logic controller drives the voltage boosting module to boost an output voltage
Implementation Method 2
a sample voltage generated by the micro-current on a sampling resistor
Data Source
AI summary
A constant current output circuit configured for a micro-current comprises a voltage boosting module and a logic controller. An input terminal of the voltage boosting module is connected to a power source, and an output terminal of the logic controller is connected to the input terminal of the voltage boosting module. The logic controller is configured to compare a sample voltage generated by the micro-current on a sampling resistor with a first threshold voltage, and when the sample voltage is less than the first threshold voltage, the logic controller drives the voltage boosting module to boost an output voltage until the sample voltage is increased to be greater than the first threshold voltage.