Many problems were found in the hardware! The progress is very slow! [color=rgb(102, 102, 102)][font=Tahoma,][url=https://bbs.eeworld.com.cn/thread-440925-1-1.html]DIY mobile phone + blue rain night[/...
In full-wave rectification, the object of rectification is 50HZ AC, each cycle of AC is 20 milliseconds, and after rectification, it becomes a fluctuating DC with a cycle of 10 milliseconds, as shown ...
[img]http://bbs.gkong.com/face/face1.gif[/img] [size=11pt][b]Requesting the Chinese user manual for the Merlin Gerin UPS[/b] Does anyone have the Chinese user manual for the Merlin Gerin UPS? Please p...
Is there any expert who has studied the original code of MPlayer, especially how it handles Demux? It would be best if you could tell me the main processing function of MPlayer and the detailed Demux ...
I have a question about servo motors. A customer who does vacuum coating asked me about the torque accuracy and linearity parameters of servo motors. What do the torque accuracy and linearity paramete...
I recently got an am335x motherboard with emmc boot, and found that the flashing data provided by beaglebone black is not for standard linux. So, I wrote this manual for your convenience....
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
DIY/Open Source Hardware
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