Reinforced Isolated Current-Sense Amplifier with Precision ±250-mV Input, Differential output & Integrated DC/DC Converter
https://www.electronics-lab.com/project/reinforced-isolated-current-sense-amplifier-with-precision-%c2%b1250-mv-input-differential-output-integrated-dc-dc-converter/
This isolated single-supply bidirectional current sensing project can accurately measure load currents from –2A to 2A. The linear range of the input is from –250mV to 250mV with a differential output range of –2.05V to 2.05V. The gain of the circuit is fixed at 8.2V/V. The project is based on AMC3301 chip which has a […]
Overcurrent / Over-discharge Protector for Lead Acid Batteries
https://www.electronics-lab.com/project/overcurrent-over-discharge-protector-for-lead-acid-batteries/
The project described here protects and monitors a Lead-Acid battery against too-low battery voltage and over-current conditions. The circuit consists of MAX4373 current-sense amplifier with internal dual comparators and P-channel MOSFET in series with the battery and its load. It works as a normally closed switch which can be opened if the current-sense amplifier and […]
Isolated Voltage-Measurement with ±1V Input, Differential Output and Integrated DC/DC Converter
https://www.electronics-lab.com/project/isolated-voltage-measurement-with-%c2%b11v-input-and-differential-output-with-integrated-dc-dc-converter/
This project can be used in bidirectional high-voltage measurements. The output is fully isolated from the input side and can be used for applications such as high-voltage DC-DC converters, High-Voltage EV chargers, SMPS, 3 Phase motor drivers, inverters, etc. The board is built using the AMC3330 chip. This chip is a precision, isolated amplifier with […]
Interactive LED Coffee Table – Arduino Compatible
https://www.electronics-lab.com/project/interactive-led-coffee-table-arduino-compatible/
The project demonstrated here is an IR proximity sensor-based LED light, mainly designed for interactive coffee tables, but also can be used as single interactive light. The table can be made with multiple of these PCBs. Multiple tiles can be used as shown in the image below, each tile will light up when an object […]
High Current DC-DC Converter – 12V/6A Output from 16V to 38V DC Input
https://www.electronics-lab.com/project/high-current-dc-dc-converter-12v-6a-output-from-16v-to-38v-dc-input/
The project presented here is a low quiescent current, synchronous buck converter featuring the LTC3807. This DC-DC converts a 16V to 38V input voltage to a 12V at 6A output. The main features of this board include an internal LDO for gate drive power from VIN or EXTVCC, RUN pins, a mode selector jumper CN1 […]
DC Solid State Power Relay with Current Feedback
https://www.electronics-lab.com/project/dc-solid-state-power-relay-with-current-feedback/
Optically Coupled Power MOSFET Relay with Galvanically Isolated Current Monitor Output This project employs CPC1718J 100V Single-Pole, Normally Open DC-Only Power Relay and ACS71240 Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection. The board can be used for applications such as industrial controls, motor control, robotics, and electronics switching. The relay […]
Closed Loop Constant LED Light Source Using OPT101 Light Sensor and OPA569 Power OPAMP
https://www.electronics-lab.com/project/closed-loop-constant-led-light-source-using-opt101-light-sensor-and-opa569-power-opamp/
The project presented here is a precision closed-loop LED driver that provides very accurate constant light and can be used for photography, scientific research, and other applications that require an accurate light source. The project consists of light sensor OPT101 and OPA569 power OPAMP. OPT101 converts light into voltage, and OPA569 is used as an […]
Brushed DC Motor Driver with Integrated Current Regulation
https://www.electronics-lab.com/project/brushed-dc-motor-driver-with-integrated-current-regulation/
The highly efficient DC brushed motor driver including an onboard shunt resistor for current regulation presented here is built using the DRV8251 chip. The operating supply voltage range of the project is 4.5V to 48V DC and the default output current capability is 2.1A. A trimmer potentiometer PR1 is provided to adjust the current regulation […]
Thermistor Signal Amplifier for Thermoelectric Cooler using INA330
https://www.electronics-lab.com/project/thermistor-signal-amplifier-for-thermoelectric-cooler-using-ina330/
The INA330 breakout board is a great tool for TEC plate temperature measurements. The INA330 based precision amplifier is designed for thermoelectric cooler (TEC) control in optical networking applications. It is optimized for use in 10k thermistor-based temperature controllers. The INA330 provides thermistor excitation and generates an output voltage proportional to the difference in resistances […]
Pika Power Board is a simple breadboard power supply
https://www.electronics-lab.com/pika-power-board-is-a-simple-breadboard-power-supply/
It’s with excitement that we bring to your attention the new Pika power board designed for outstanding user experience and aimed at making powering your projects and gadgets easy. The board was built by Uk-based electronics solutions specialist, TikStation. Pika power board is designed to sort out the common issues people usually face with the […]