ZMPT101B AC Single Phase Voltage Sensor Transformer Module

the zmpt101b ac single phase voltage sensor transformer module is a high-precision ac voltage sensing module designed to safely measure single-phase alternating current (ac) voltage in electrical systems. it is based on the zmpt101b precision voltage transformer, which provides accurate voltage measurement while maintaining electrical isolation between high-voltage ac lines and low-voltage electronic circuits.

the module is widely used in energy monitoring systems, smart meters, home automation, industrial monitoring, and iot applications where safe and reliable ac voltage measurement is required. it is compatible with popular microcontroller platforms such as arduino, esp32, esp8266, raspberry pi, stm32, pic, and other embedded systems.

the working principle of the zmpt101b module is based on electromagnetic induction. the onboard zmpt101b transformer senses the ac mains voltage and converts it into a low-voltage analog signal proportional to the input voltage waveform. because the transformer provides galvanic isolation, the high-voltage side remains electrically separated from the low-voltage control electronics, improving user safety and protecting sensitive components.

the module produces an analog sine-wave output that can be connected to the analog input pins of microcontrollers or analog-to-digital converters (adc). by analyzing this waveform through software, the controller can calculate:

• rms ac voltage

• voltage fluctuations

• power consumption

• energy monitoring data

• ac waveform characteristics

one of the major advantages of the zmpt101b module is its high isolation capability, which allows safe measurement of mains ac voltage without directly exposing the microcontroller to dangerous high voltages.

the onboard adjustable potentiometer allows users to calibrate and adjust the output sensitivity and gain for improved measurement accuracy based on application requirements.

the module is designed with:

• low phase shift characteristics

• stable signal output

• high measurement precision

• compact pcb construction

• low power consumption

these features make it suitable for continuous monitoring and real-time voltage sensing applications.

the zmpt101b ac voltage sensor module is commonly used in:

• ac mains voltage monitoring systems

• smart energy meters

• home automation and smart grids

• iot-based power monitoring systems

• industrial voltage measurement

• electrical safety systems

• power factor and rms calculations

• solar inverter monitoring systems

• embedded electronics and automation projects

in arduino and esp32 projects, the analog output signal can be sampled using adc inputs and processed using software libraries to measure voltage levels and calculate electrical parameters in real time.

the compact and lightweight design allows easy installation inside electrical panels, smart devices, automation systems, and experimental circuits.

overall, the zmpt101b ac single phase voltage sensor transformer module is a reliable, safe, and accurate ac voltage measurement solution that provides isolated analog sensing for power monitoring, energy management, iot systems, and embedded electronics applications requiring precise single-phase ac voltage detection.