Isolated, Single-Channel RS232 transceiver (Isolated RS232 to UART)
https://www.electronics-lab.com/isolated-single-channel-rs232-transceiver-isolated-rs232-to-uart/
The project presented here provides an isolated interface between the RS-232 cable network and the connected UART systems to protect against voltage spikes and ground loops within the noisy environment and improve system reliability. The project achieves a robust data communication link in harsh industrial environment. ADM3251E chip from Analog Devices is the heart of […]
UCC12040/50 3 kVRMS and 5 kVRMS Isolated DC/DC Converters
https://www.electronics-lab.com/ucc12040-50-3-kvrms-5-kvrms-isolated-dc-dc-converters/
Texas Instruments’ 500 mW, high-efficiency low-EMI converters are suitable for ultra-high voltage applications. Texas Instruments’ UCC12040 and UCC12050 DC/DC converters with 3 kVRMS and 5 kVRMS reinforced isolation ratings, respectively, are designed to provide efficient, isolated power to isolated circuits that require a bias supply with well-regulated output voltages. These devices integrate a transformer and DC/DC controller […]
Isolated Full-Duplex RS-485 Transceivers
https://www.electronics-lab.com/isolated-full-duplex-rs-485-transceivers/
This module is an isolated full-duplex differential line driver and receiver for TIA/EIA RS485/RS422 applications. The module is ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical barrier of the device is tested to provide isolation of 2500Vrms between bus line Trans-receiver […]
15A 100V Isolated Half-Bridge Driver
https://www.electronics-lab.com/15a-100v-isolated-half-bridge-driver/
15 A 100V Isolated Half bridge driver project intended to be used for DC-DC converters, inverters, LED driver and motor driver applications. This projects is really helpful in industrial applications where noise is a concern since project provides optical isolation between microcontroller and high current output. ADuM4224 isolated precision Half-Bridge driver is the heart of […]
8 Channel Optically Isolated I/O Shield for Arduino Nano
https://www.electronics-lab.com/8-channel-optically-isolated-o-shield-arduino-nano/
This shield enables you to interface many different devices to Arduino Nano using optically isolated inputs/outputs. The circuit consists of 4 Input channels and 4 Output channels and all 8 I/O lines are optically isolated. This project can help in various industrial applications where EMI noise and high voltage lines can damage the Arduino Nano […]
230V AC dimmer, mains isolated, using PIC12F629
https://www.electronics-lab.com/230v-ac-dimmer-mains-isolated-using-pic12f629/
This is a very simple mains isolated dimmer with a triac output (phase control). It uses timer0 to do the timing. There is no user interface, the value of the triac ignition delay after a zero crossing is defined by setting the reload value of timer0 (Tmr0) in the software directly. This value can e.g. […]
An isolated analog input for Arduino
https://www.electronics-lab.com/isolated-analog-input-arduino/
Giovanni Carrera designed a circuit that accepts input voltage from about 20mV to 5V or a current of 4 to 20 mA and converts it to a isolated frequency signal. A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems. This circuit is particularly suitable for industrial control […]
Isolated Digital ON/OFF Switch for AC load
https://www.electronics-lab.com/isolated-digital-onoff-switch-for-ac-load/
ON/OFF AC load Controller project offers simple On/Off Switch Control with two tact switch. Specifications Input supply – 12 VDC @ 40 mA Output – upto 500 W – 230 VAC Onboard tactile switch for ON/OFF control Opto-isolated Triac based design Power-On LED indicator Power Battery Terminal (PBT) and Terminal pins for easy input / […]
230 VAC Timer
https://www.electronics-lab.com/230-vac-timer/
Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically Isolated. Specifications Supply input 12 VDC […]