Archives: Projects
Voltage to Current (V-I) Converter
The circuit shown here is a high-side voltage-to-current (V-I) converter. It translates an input voltage of 0 V to 2 V to an output current of 0 mA to 100 mA. The low offset voltage and offset drift of the OPA2333 facilitate excellent DC accuracy for the circuit. The project...
Continue Reading4 Channel Current Sense Amplifier – Low and High-Side Voltage Output
This 4-Channel current sense amplifier is designed for cost-optimized applications. This is a current-sense amplifier (also called a current-shunt monitor) that senses the voltage drop across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the...
Continue Reading48V DC Input to 12V Output DC-DC Converter
This DC/DC buck regulator project is based on LMR38020 chip that employs synchronous rectification to achieve high conversion efficiency on a small board. The project operates over a wide input voltage range of 14V to 48V to provide a regulated 12Vdc output at 400kHz switching...
Continue Reading350W Power Factor Boost Converter for Inverter-Fed BLDC and PMSM Motors
This 350W power factor boost converter is designed for inverter-fed BLDC/PMSM motor appliances, A/C units, Refrigerators, and industrial power supplies. The circuit is a continuous-conduction-mode boost converter implemented using a UCC28180 PFC controller module which provides all...
Continue ReadingTwo Channel High Side Driver with Analog Sense for Automotive Applications
The project presented here is suitable for all types of resistive, inductive, and capacitive loads, and can also be used to drive LEDs. The board is built using 2 x VN5025AJ chips which are monolithic devices made using STMicroelectronics VIPower technology. It is intended for driving...
Continue ReadingBreakout Board for UCC28019 and UCC28128 PFC Controller
This is a breakout board for UCC28019 and UCC28128 PFC controllers. This module enables users to build a high-power PFC (Power Factor Correction) controller. Active PFC uses the boost topology operating in Continuous Conduction Mode (CCM). The controller is suitable for systems in the...
Continue ReadingHigh Power Bipolar Stepper Motor Driver with SPI Interface
This is a compact high-power stepper motor driver built for bipolar stepper motors. The driver can be controlled using a serial communication interface (SPI). It combines a flexible ramp generator for automatic target positioning with the industry’s most advanced stepper motor...
Continue ReadingDC Motor Position Control Using Potentiometer – Arduino Compatible
The project presented here is an Arduino-compatible motor control board. The board consists of an ATMEGA328 microcontroller, LMD18201 H-Bridge, and 2 x potentiometers. This closed-loop servo system provides position control using a feedback potentiometer mounted on the output shaft of...
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