Archives: Projects
Isolated Voltage-Measurement with ±1V Input, Differential Output and 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...
Continue ReadingInteractive 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...
Continue ReadingHigh 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...
Continue ReadingDC 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....
Continue ReadingClosed 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...
Continue ReadingBrushed 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...
Continue ReadingThermistor 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...
Continue ReadingMini Robot Controller Using Infra-Red Remote for Small and Medium Size Robot
The Robot Controller is a very compact solution for controlling small and medium size robots using an Infrared remote. The project is fully Arduino compatible and consists of an ATMEGA328 microcontroller, 2 x BD6211 motor drivers, TSOP1838 IR sensor. BD6211 H-bridge is a full bridge...
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