EMS RF Beauty Device Control Board Solution Development
Güzellik & Kişisel Bakım | Müşteri：某Beauty Device Brand
Project Background: The client needs to develop a high-end beauty device PCBA solution, supporting EMS microcurrent, RF radio frequency, LED light therapy three functional modes, suitable for facial beauty and body care.
Solution Design:
1. Main Control Chip: STM32L051 low-power 32-bit microcontroller
2. EMS Module: AD8232 instrumentation amplifier, output current 0.1-2mA adjustable
3. RF Module: MAX2620 RF signal generator, frequency 1MHz
4. LED Module: Red light, blue light, green light three light therapy modes
5. Power Design: Built-in 500mAh lithium battery, Type-C charging
6. Display: OLED display, showing mode, intensity, battery level
Technical Challenges:
- Safety Design: Overcurrent protection, temperature protection ensure safe use
- Current Accuracy: EMS current accuracy controlled within ±5%
- Electromagnetic Compatibility: Meet EMC standard requirements
Result Analysis:
- Product Performance: EMS intensity 10 levels, RF temperature 42-45℃
- Battery Life: Full charge can be used 15 times, 10 minutes each time
- Safety Protection: Overcurrent, over-temperature, short circuit triple protection
- BOM Cost: Controlled within 80 yuan
Application Scenarios:
- Facial Beauty: Lifting and firming, reducing fine lines
- Body Care: Shaping and fat reduction, relieving fatigue
- Home Beauty: Beauty salon-level care at home
- Gift Market: High-end beauty gifts
Proje Sonuçları
Project Results: Successfully delivered TWS Bluetooth earphone PCBA solution. Client has started mass production with monthly output of 100,000 pairs.
Key Metrics:
- Yield rate: 99.5%
- Power consumption: 4 hours playback, 20 hours with charging case
- Performance: Bluetooth 5.3, ANC noise cancellation
- Reliability: IPX5 waterproof rating
Client Feedback: Sound quality and battery life exceed expectations.