BLE Wall Switch Solution Without Neutral Wire Connection

Power Integrations has released a new design example report (DER-832) – this single live wire Bluetooth Low Energy (BLE) smart wall switch does not require a neutral wire connection and can power LED/fluorescent/incandescent bulbs from 3 W to 600 W.
This design is based on PI’s high-efficiency LinkSwitch-TN2 offline switch power supply IC, featuring ultra-low power consumption, allowing the system leakage current under 230 VAC to be less than 100 µA.

BLE Wall Switch Solution Without Neutral Wire Connection

Conventional smart wall switches require a third wire (neutral) to prevent ghosting or flickering caused by leakage current in standby mode, but most residential wall switches only have two wires. The LinkSwitch-TN2, combined with a proprietary current shaping circuit, provides an ideal solution for neutral-less wiring of multifunctional smart wall switches.

BLE Wall Switch Solution Without Neutral Wire Connection

  • Download DER-832

  • Learn more about LinkSwitch-TN2 and read the datasheet

  • Start your own design with PI Expert now

BLE Wall Switch Solution Without Neutral Wire Connection

Click “Read the Original” to downloadDER-832.
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