The circuit does not require an AC power transformer. Instead, the voltage is reduced by series capacitor (C1) connected directly to the 230V AC mains voltage. The AC mains voltage is rectified by ...

Monitoring of sensor health The ability to monitor changes to the sensor over time can help with the robustness and accuracy of the measurement system. Direct measurements across the sensor will more ...

Fig. 2. Internal block diagram of the ACPL-C87A. First the isolation amplifier senses the input voltage (single-ended analog signal) and converts it to a digital bit stream. The bit stream is then ...