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Smart plug

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Block diagram

Smart plug

Block diagram

Overview

Programmable smart plugs can be remotely controlled from your smartphone, which makes them an important component in the smart home. Our reference designs and integrated circuits help you address complex challenges to quickly differentiate your smart plug design from the competition.

Design requirements

Modern smart plug designs require:

  • Secure wireless communication to enable remote control and monitoring of plugged-in devices.
  • Load current and power measurement devices for advanced energy management.
  • AC-to-DC power devices and universal power devices to enable efficient, optimized smart plug designs.
  • USB interface devices to add support for USB charging ports.
  • RGB LED indicator devices to enhance user interface.
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Block diagram

Find products and reference designs for your system.

Smart plug

Point of load Point of load AC Line AC Line Metrology sensors (Vsense, Isense) Metrology sensors (Vsense, Isense) Wireless interface Wireless interface Radio (2.4GHz, sub-1GHz or Wi-Fi) Radio (2.4GHz, sub-1GHz or Wi-Fi) Mechanical button Mechanical button Load Load Isolated AC/DC power supply Isolated AC/DC power supply Rectifier & filter Rectifier & filter AC/DC converter AC/DC converter Non-isolated DC/DC power supply Non-isolated DC/DC power supply Buck or LDO Buck or LDO Metrology Metrology MCU (with optional integrated analog) or wireless MCU (with i... MCU (with optional integrated analog)orwireless MCU(with integrated radio) Buffer/ driver Buffer/driver Voltage translator Voltage translator Logic gate Logicgate Voltage reference Voltage reference Amp Amp ADC ADC Output user interface Output user interface Status LEDs Status LEDs RGB & white LED driver RGB & white LED driver Signal input/output protection Signal input/output protection ESD Protection ESD Protection Self-diagnostics/monitoring Self-diagnostics/monitoring Voltage supervisor, RESET, watchdog timer Voltage supervisor, RESET, watchdog timer Relay system Relay system SSR FET & logic SSR FET & logic

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