Archives: Projects
Precision Thermocouple Amplifier (Thermocouple to Digital Converter with Linearization – SPI Interface)
This precision thermocouple sensor module performs cold-junction compensation and digitizes the signal from any type of thermocouple. The output data is formatted in degrees Celsius. The converter resolves temperatures to 0.0078125°C, allows readings as high as +1800°C and as low as...
Continue ReadingSingle-ended Video/Digital input to differential output driver (High Speed Differential Driver)
The project described here is a low-cost solution to transmit a video or digital signal up to 300 Meters over a twisted pair cable. The project has been designed using the AD8131 chip which is a differential driver for the transmission of high-speed signals over low-cost twisted pair...
Continue Reading600V – 30A IPM Module Carrier Board for Variable Frequency Drive (VFD)
This compact IPM module circuit provides a fully-featured, high-performance inverter output stage for AC Induction, BLDC, and PMSM motors. The circuit is based on FNA23060 chip which integrates the optimized gate drive of the built-in IGBTs to minimize EMI and losses, while also...
Continue Reading300W Off-line Power Factor Correction (PFC) Boost Converter
The circuit presented here is a 300W off-line power factor correction (PFC) boost converter providing a nominal regulated output voltage of 375V @ 0.8A of load current. The project accommodates an input voltage range of 85V AC to 265VAC and uses average current mode control at a fixed...
Continue Reading3 Phase AC input – DC Output – High Voltage DC Power Supply (2KW)
Although this power supply design is specific to the Intelligent Power Modules (IPM) VFD drives, high voltage boost converters, high voltage battery chargers, etc, the concept and circuit design may be used for any power supply that requires a high voltage output of up to 800V DC and...
Continue ReadingClock Multiplier – Crystal Frequency Generator using PT7C4511
This is an easy-to-build project and it is the most cost-effective and high-performance frequency multiplier, which instigates analog phase lock loop techniques. The circuit provides high-quality, high-frequency output from lower frequency crystal or clock input. The project can be...
Continue ReadingHigh Voltage DC Power Supply for Intelligent Power Modules
Although this power supply design is specific to the Intelligent Power Modules (IPM), the concepts and circuit design may be used for any power supply that requires high voltage output up to 400V DC and 6 A. It is an unregulated power supply, DC output is dependent on AC input. The...
Continue ReadingJoystick Controlled 2 x RC Servo motors – Arduino Compatible
This project enables easy control of 2 RC servo motors using a thumb joystick. This is an Arduino compatible project and it consists of a thumb joystick, ATMEGA328 microcontroller, filter capacitor on dc supply, and other components. The thumb joystick has 2 axes, X and Y. The...
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