The PHY of the Gigabit electrical port outputs 4 pairs of differential lines to the transformer. Some products use 100-ohm matching resistors (two 50-ohm resistors in series) on each pair of different...
Development environment installationIncluding CDK installation and USB driver installation.
Both CDK and drivers can be found from the resource download page in the chip open community.
CDK needs to i...
I made a transmitter with STC12C5A60S2, and wanted to use PWM-style D/A conversion to output 0-5V analog voltage. I added a voltage follower later, but it stopped outputting at 3.75V. I don't know wha...
Hello friends: I'm currently working on CC2530's PWM duty cycle adjustment, using T3's 1-channel PWM with adjustable duty cycle output; the initialization procedure is as follows: /*******************...
[i=s]This post was last edited by star_66666 on 2018-4-28 17:33[/i] [color=#444444][font=Tahoma,]I was busy with work and research on lwip, usb, etc. some time ago. This week I officially started to s...
Beijing time, June 6 morning news, according to foreign media reports, in order to cope with the current economic crisis, many Internet and media companies may divest non-core assets. In the economic ...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
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