Position and Speed Controller for DC Motor with Incremental Encoder
https://www.electronics-lab.com/project/position-and-speed-controller-for-dc-motor-with-incremental-encoder/
This project consists of Arduino Arduino-compatible microcontroller ATmega328, an L298 Motor driver, a Joystick, a programming connector, an Infrared sensor, and various analog and digital I/O pins. The project is Arduino compatible and can be programmed using Arduino IDE and many motor-related projects can be developed using this hardware. L298 has two H-bridges but here […]
Isolator for SPI Interface with Inbuilt DC-DC Converter
https://www.electronics-lab.com/project/isolator-for-spi-interface-with-inbuilt-dc-dc-converter/
This simple, compact solution is ideal for isolated SPI data requiring communication across different ground potentials often found in Industrial PLCs (programmable logic controllers) and Instrumentation and data acquisition systems. Serial Peripheral Interface (SPI) is a protocol that is commonly used for communication between microcontrollers and peripheral ICs such as sensors, ADCs, DACs, and others. […]
Isolated RS485/RS422 Transceiver with Integrated DC-DC Converter
https://www.electronics-lab.com/project/isolated-rs485-rs422-transceiver-with-integrated-dc-dc-converter/
The project presented here is a galvanically isolated differential line transceiver with a built-in isolated DC-DC converter for TIA/EIA RS-485 and RS-422 applications. Both signal and power paths are isolated per UL1577 and are qualified for reinforced isolation per VDE, CSA, and CQC. The low-emissions, isolated DC/DC converter ensures the final system is capable of […]
Arduino Compatible OLED Board with 4 Channel 16-Bit ADC
https://www.electronics-lab.com/project/arduino-compatible-oled-board-with-4-channel-16-bit-adc/
This board consists of Arduino-compatible hardware which includes an OLED display, ADS1115 4-Channel 16Bit ADC, Arduino-compatible Microcontroller ATMEGA328, a connector for Arduino Programming, a connector for 4 Channel Analog input, and a connector for a couple of I/O lines. Operating supply 5V DC. The ADS1115 device is a precision, low-power, 16-bit, I2C-compatible, analog-to-digital converter (ADCs). […]
Half-Bridge with Ultra-Precise Current Sense Feedback for Solenoid
https://www.electronics-lab.com/project/half-bridge-with-ultra-precise-current-sense-feedback-for-solenoid/
A Half-bridge converter is widely used in applications such as DC-DC converters, switch mode power supplies, inverters, motor drivers, resistive loads, and solenoid drivers. This project consists of an IR2104 Half-bridge driver chip, 2 x DPAK MOSFETS, and an INA293 precision current sense amplifier. The IR2104 is a half-bridge, high voltage, high-speed power MOSFET and […]
Xenon Flash Tube Driver
https://www.electronics-lab.com/project/xenon-flash-tube-driver/
This is a Xenon Flash tube driver board and consists of a high voltage AC to DC converter circuit, a DC storage capacitor, a trigger circuit that will fire the xenon lamp, an Optocoupler to control the flashes etc. The circuit requires 220VAC and trigger pulse which should be between 3V to 5V. The input […]
Voltage Attenuator
https://www.electronics-lab.com/project/voltage-attenuator/
The project shown here converts bipolar +/-10V (Dual 10V) signal and provides a single-ended 0 to 5V signal. The circuit attenuates a +/-10V, 10Khz bandwidth bipolar signal converts to a single-ended signal, and also filters it by a 3rd-order Butterworth filter to drive a single-ended analog-to-digital converter (ADC). The project was built using OPA2206 OPAMP […]
Photo Diode Amplifier
https://www.electronics-lab.com/project/photo-diode-amplifier/
This small module is a photodiode amplifier. The circuit consists of an OPAMP configured as a transimpedance amplifier for amplifying the light-dependent current of the photodiode. A small bias voltage is derived from the positive supply and applied to the op amp’s non-inverting input. This prevents the output from saturating at the negative supply rail […]
Airflow Sensor
https://www.electronics-lab.com/project/airflow-sensor/
This airflow sensor consists of INA326 precision instrument amplifier, double 100uA REF200 current sources, and a REF3025 2.5V reference voltage chip. Airflow dynamics dictate how much the voltage will increase or decrease for a given airflow rate. Therefore, the relationship between temperature and flow rate would have to be established for a method such as […]
Adjustable Current Source – 0 to 1A
https://www.electronics-lab.com/project/adjustable-current-source-0-to-1a/
This voltage-to-current (V-I) converter delivers a well-regulated current to a load. The circuit accepts an adjustable input voltage from Trimmer potentiometer PR1 and converts it to an output current from 0A to 1A. The current is regulated by feeding the voltage across a low-side, current-sense resistor R9 back to the OPAMP. The output Darlington […]