ESD protection design scheme of USB interface

Overview The hot-swappable feature of the USB interface will easily damage the device due to static electricity, resulting in crashes, board burning, and disconnection. It is necessary to design ESD protection on the USB interface, and the USB ESD design needs to meet the two standards of JS-001-2017 (HBM) and IEC61000-4-2. HBM requires that the […]

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ADI Technical Article: FPGA Power System Management

By Pinkesh Sachdev, Product Applications Engineer, Analog Devices Introduction The origins of Field Programmable Gate Arrays (FPGAs) can be traced back to the 1980s, evolving from Programmable Logic Devices (PLDs). Since then, FPGA resources, speed, and efficiency have all improved rapidly, making FPGAs the solution of choice for a wide range of computing and processing […]

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How to Configure a Sensor-Based Control System Using the PSI5 Bus

Safety is paramount in car design, so designers need to add more sensors and driver assistance systems. The difficulty is that these systems require a common interface and must be able to communicate reliably with zero errors despite large temperature and humidity fluctuations and vibration and electromagnetic compatibility issues. For designers, look at sensor-based solutions […]

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Why do PLCs need to be used with isolation barriers/isolators?

01Related concepts PLC:Programmable logic Controller The full name is programmable controller, which is an application system composed of a main control chip and peripheral circuits. It can pre-write the instruction flow through the program to achieve specific functions, and is usually used in automation, industrial control and other fields. It is characterized by high stability, […]

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How to use STC89C52RC to implement the design of a 99-second countdown timer?

Design requirements:Accurate timing is realized through timer 0 of STC89C52RC microcontroller, and the countdown time display function is realized through LCD1602. The initial value is 99 seconds, and it has pause and reset functions. , the countdown time setting function. Countdown timer system circuit:The initial countdown value and current countdown value are displayed through LCD1602, […]

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Improving Total Power Measurement Accuracy Using FPGA Chip EP1C3T144I-7 and Analog-to-Digital Converter

1 Introduction Digital signal processing is a field of science and engineering that has developed rapidly over the past four decades. This rapid development is the result of the rapid development of digital computer technology and integrated circuit technology. Compared with the traditional electromechanical instrument measurement, the electric energy measurement realized by the digital signal […]

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The basic principle of stepper motor subdivision drive and its realization design based on FPGA device

1 Introduction A stepping motor is an executive element that converts pulse signals into angular displacement or linear displacement, and is an incremental drive element that outputs corresponding digital pulses. It has the advantages of high positioning accuracy, small inertia, no accumulated error, good starting performance, easy control, low price and convenient interface with the […]

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Basic knowledge and examples of CAN physical layer debugging

The Controller Area Network (CAN) standard continues to evolve and is being used in many new applications beyond in-vehicle and industrial networks. Microprocessors supporting it became ubiquitous and inexpensive, and the open source protocol stack made it very accessible and easy to add to new systems. There are many CAN boards available for BeagleBone (Capes), […]

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