E-cigarette Controller Solution

  The E-cigarette Controller Solution is a high-cost-performance, low-power control solution specifically designed for e-cigarette devices. Developed based on the Nyecon NY8 series microcontroller, this solution integrates core functions such as lithium battery charge/discharge management, atomization output control, multiple safety protections, and human-machine interaction indicators. Leveraging the high integration and excellent cost-effectiveness of the NY8 series chip, this solution achieves ultimate cost control and power consumption optimization while ensuring full functionality, making it an ideal choice for e-cigarette products.

Ultimate Cost-Optimized Solution:

• Main Control Chip: Adopts the Nyecon NY8 series 8-bit microcontroller. This chip features a built-in high-precision RC oscillator, ADC, and PWM. Its extremely streamlined peripheral circuit minimizes BOM cost while providing sufficient computing power, making it highly competitive in the market.
• Integration: A single chip integrates key detection, LED driving, atomization output control, and battery management logic, eliminating the need for additional expensive dedicated logic chips.

Electrical Specifications:

• Operating Voltage: 3.0V ~ 4.2V (compatible with a single 3.7V lithium battery).
• Static Power Consumption: < 5μA. The extremely low standby power consumption ensures the battery can last for months even when the product is not in use for a long time.
• Charging Specification: Supports 5V/400mA USB input charging.
• Load Capability: Can drive heating coils with a minimum resistance of 0.35Ω, meeting high-power output requirements.

This controller provides users with clear status feedback through simple button operations and LED indicators.

Power On/Off & Lock:

• Five-Click Power On/Off: Press the button 5 times consecutively within 2 seconds to lock or unlock the vaping function. Upon successful mode switching, the 4 battery level indicator lights will flash 3 times as a prompt.

Battery Level Indication:

• Power-On Self-Test: When the device is powered on, the 4 battery level indicator lights will flash 3 times. If no vaping is detected, it will automatically enter sleep mode.
• Charging Status: During charging, the 4 battery level indicator lights will dynamically display the current battery level. When charging, the first light stays on, the second light flashes, and so on. When all 4 LED lights are constantly on, it indicates the battery is fully charged.

Multiple Safety Protection Mechanisms:

• Short-Circuit Protection: When a short circuit in the heating coil is detected, the system will immediately cut off the output and alert the user by flashing the 4 battery level indicator lights 3 times, effectively preventing device damage and safety hazards.
• Over-Inhalation Protection: If a single vaping session exceeds 10 seconds, the system will automatically stop the output and prompt the user by flashing the 4 battery level indicator lights 5 times, protecting both the user and the device.
• Low-Voltage Protection: When the battery voltage drops below 3.2V, the last battery level indicator light will flash 15 times, and vapor production will stop. The low-voltage alarm will automatically clear once the voltage recovers.

Hardware Architecture:

• MCU: Nyecon NY8 series, compact and powerful.
• Power Management: Built-in charging management circuit supports direct USB charging.
• Drive Circuit: Uses a MOSFET to drive the heating coil, ensuring fast switching response and stable output.

Intelligent Wake-up Logic:

• In sleep mode, once the device detects a user’s vaping action, it will be immediately awakened and enter full-power output state, ensuring a rapid response.

Low-Power Design:

• The chip automatically enters sleep mode when idle, retaining only the key wake-up function. This keeps the overall system power consumption at the microampere level, maximizing standby time.

Status Feedback:

• All operational and protection statuses are clearly fed back through LED indicators, allowing users to understand the device status at any time for a more reassuring experience.