Smart sensing, reborn; extraordinary purification, enjoyed. With the advancement of technology and the improvement of living standards, high-end water purifiers are gaining increasing popularity. Water purifiers are now being equipped with cutting-edge AI intelligent systems, paired with high-definition touch panels that deliver delicate haptic feedback—a gentle tap delivers an instant, responsive vibration, while voice commands are recognized and executed effortlessly, enabling true voice-controlled operation. With 24/7 AI-powered smart monitoring and autonomous operation, multiple intelligent interaction methods come together to redefine the premium drinking water experience.
I. Common Types of Water Purifiers
1. Countertop Water Purifiers
These are the water purifiers commonly used in households. Through voice interaction, users can freely control water inflow and outflow. Touch buttons also provide an alternative control method. Ambient breathing lights complement the operation with appropriate illumination, adding an emotional touch to the experience. Both cold and hot water are readily available for a thoroughly satisfying drinking experience. On the purification side, a liquid level detection chip precisely monitors the water level and automatically shuts off the system when the set level is reached, enabling fully automatic operation.
Figure 1 Countertop Water Purifier
2. Floor-Standing Water Purifiers
Floor-standing water purifiers offer essentially the same functions as countertop models, including touch control, voice interaction, and ambient breathing lights. However, they provide a larger water supply capacity. Floor-standing units are generally used as direct-drinking water dispensers, with most models featuring both heating and cooling capabilities, while some are designed for simple filtration or direct drinking from bottled water. They are commonly found in offices, schools, railway stations, airports, hotels, households, and other public or commercial settings.
Figure 2 Floor-Standing Water Purifier
II. Development Trends of AI Water Purifiers
In the future, high-end AI smart water purifiers will evolve toward ultra-slim built-in designs, minimalist aesthetics, intelligent interaction, and integrated functionality. They may completely break away from the conventional look of home appliances, transforming into home art pieces and health management hubs. The control functions of future water purifiers will resemble those of a fixed central controller, offering capabilities similar to smart control devices—with enhanced display screens for easier operation, voice exchange, music playback, video playback, tactile vibration feedback, precise liquid level control, internet connectivity, and cloud platform integration for information sharing. They will also enable interconnectivity and mutual control with users' other smart home devices.
Having the smart technology field for nearly two decades, Awinic has established long-term, in-depth collaborations with a wide range of smart device manufacturers, with its products being widely adopted across the industry. Emerging technologies are endowing water purifiers with a greater sense of innovation and interactivity, while delivering enhanced efficiency, convenience, and emotional value to users.
Figure 3 Ultra-Thin Water Purifier
III. Awinic Liquid Level Detection Solution
Figure 4 Liquid Level Height Detection Diagram
Awinic's liquid level detection solution estimates the liquid height by leveraging the change in capacitance caused by the difference in contact area between the liquid surface and the electrode plates. For a detailed description of the solution, please download it from the Awinic official website. Please refer to the schematic diagram below for liquid level detection using the AW93208XXX.
Figure 5 Liquid Level Detection Schematic
Figure 6 Water Purifier Application Block Diagram
V. Brief Introduction to the Functions of Awinic's Optimized AI Water Purifier Solution
1. AI Voice Chip
The AWA89501XXX features AI offline/online voice exchange, AI voiceprint recognition, AI speech synthesis, AI specific sound detection, AI deep learning, and more.
2. Audio Amplifier
The AW88166XXX offers high reliability, integrated BOOST boost converter, built-in DSP, rich audio effect algorithms, and compatibility with multiple platforms.
3. I²C Switch
The AW9548XXX is an 8-channel bidirectional transfer switch designed for I²C bus conversion.
4. Level Translator
The AW39128XXX is an 8-bit high-performance voltage level translator suitable for digital signal conversion in mixed-voltage systems. It delivers high overall data transfer rates, reaching up to 70Mbps in push-pull mode.
5. Cap Sensor
The AW93208XXX is an 8-channel capacitive proximity sensing, touch control, and liquid level detection IC, suitable for wear detection, touch buttons, linear sliders, rotary wheels, and more. This chip enables accurate position detection and is ideal for functions such as dimming and volume adjustment.
The AW93305XXX is a 5-channel capacitive proximity sensing, touch control, and liquid level detection IC.
6. Ambient Light and Indicator LED Driver
The AW20144XXX is a 144-channel high-precision constant-current LED driver. It supports group control mode, autonomous breathing mode, and fast RGB control mode, enabling flexible and efficient lighting effect programming and rapid display updates.
7. Haptic Feedback
The AW86937XXX automatically adjusts the frequency of the drive signal to deliver efficient and stable haptic feedback. The built-in boost module can output up to 11V. It features short-circuit protection, over-temperature protection, and under-voltage protection.
8. LDO, Voltage Reference, and Operational Amplifier
The AW37030D330XXX is a high-performance, ultra-low-power 300mA linear regulator with ±2% high output accuracy and a fixed 3.3V output. It is widely used in noise-sensitive, space-constrained portable devices.
The AWS73431BXXX is a voltage reference with 0.5% accuracy, widely used in power supply feedback detection loops.
The AWS79062XXX is a 10MHz bandwidth, low-noise, rail-to-rail operational amplifier.
9. Hall Sensor
The AW86533AXXX is a high-sensitivity, high-level bipolar LATCH Hall-effect switch IC. It integrates an internal voltage regulator, temperature compensation circuitry, and more.
10. Motor Driver
The AWD8231XXX is an integrated motor driver featuring an H-bridge, charge pump, current-sense feedback, current regulation, and multiple protection circuits.
VI. Summary of Related Awinic Product Selection
Table 1 Summary of Related Awinic Product Selection
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