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O Introduction
In the past two decades, power electronics technology has developed rapidly and has been widely used in the fields of electricity, metallurgy, chemical industry, coal, c...[Details]
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1. Introduction to LED resources 1. GPIO corresponding to LED (pulled up) LED1 nLED1 GPB5 LED2 nLED2 GPB6 LED3 nLED3 GPB7 LED4 nLED4 GPB8 2. Hardware circuit 2. D...[Details]
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1. Experimental tasks As shown in the figure below, there are two common cathode digital tubes connected to the P0 and P2 ports of the AT89S51 microcontroller. The P0 port driver displays the tens di...[Details]
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program stepper.c stepper.hex /* * STEPPER.C * sweeping stepper's rotor cw and cww 400 steps * Copyright (c) 1999 by W.Sirichote */ #include c:mc518051io.h /* include i/o header file */ #include c:mc...[Details]
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In recent years, smart sweepers have become more and more popular, and products are constantly being updated and iterated. The sweeping robot products are more intelligent and have more complete fu...[Details]
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Different types of batteries have different internal resistances. Batteries of the same type have different internal resistances due to inconsistent internal chemical properties. The internal resi...[Details]
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Nidec's drive motor system "E-Axle" won the "Nikkei Award for Best Product and Service 2019" The "E-Axle" drive motor system for new energy vehicles developed, produced and sold by Nidec won the...[Details]
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Conversion between different bases, C language variable types and operators, Keil Debug usage and application and the realization of running lights 1. Binary, decimal, hexadecimal conversion 1.1 In...[Details]
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The RCC (Ringing Choke Convertor) switching power supply has the advantages of few components, low cost, no need for external clock control, working in a critical continuous state, and can easily...[Details]
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Ultrasonic Testing Principle
Ultrasonic ranging program flow chart
The procedure is as follows:
//Ultrasonic module program
//Ultrasonic module program
//Trig = P2^0...[Details]
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1. Principle When the fluid flow sensor along the axial direction enters the product, it is forced to rotate around the center line under the action of the vortex generator, generating a vortex flow....[Details]
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Recently, I need to monitor the temperature of the equipment when testing it. Usually, I use an infrared thermal imager to test it and then record the data manually. This kind of test is very labor...[Details]
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Recently, Germany's KACO New Energy announced that it has become the sole supplier of photovoltaic inverters for NeonEnergy's solar photovoltaic power generation project in Athens, Greece.
The...[Details]
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A modification of the current-control circuit in a low-voltage LED system allows use of a chopped supply voltage to modulate the LED intensity. The circuit prevents inrush current to the decoupling...[Details]
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ON Semiconductor has announced a new generation of silicon and silicon carbide hybrid power integrated modules (PIMs) in the F5BP package, ideal for increasing the power of large solar string inver...[Details]