554 Results for "%EB%8C%80%EA%B5%AC%EC%98%A4%ED%94%BC%EA%B0%95%EC%B6%94%E2%86%B2www%2Coptime4.com%EB%8C%80%EA%B5%AC%EC%98%A4%ED%94%BC%20%EB%8C%80%EA%B5%AC%EB%A7%88%EC%82%AC%EC%A7%80%20%E2%86%B2%20%EB%8C%80%EA%B5%AC%EC%98%A4%ED%94%BC%E1%99%97%20%EB%8C%80%EA%B5%AC%EC%98%A4%ED%94%BC%EC%83%9D%EA%B0%81%E1%99%97%20%EB%8C%80%EA%B5%AC%ED%9C%B4%EA%B2%8C%ED%85%94%20%EB%8C%80%EA%B5%AC%ED%82%A4%EC%8A%A4%EB%B0%A9%20%ED%83%80%EC%9E%84"

Exhibition Position
Hacker page by Richard
Huaxing Intelligent Control UWBLOC positioning system adopts self-developed wireless pulse ranging technology to achieve precise positioning of exhibition hall personnel and exhibits. The positioning accuracy is better than 30 cm. By setting the base...

Breadboarded 80-LED Analogue Oscilloscope
Hacker page by David Scholten
A very old project. By using a single VU meter IC (LM3915?) and aanother IC that sequentially connects the columns of LEDs to ground (i.e.the time scale), the VU meter effectively "sweeps" across the waveform ina quick succession.

Switching AC Amplifier
Hacker page by Incomplete Circuits
This is my attempt at making a switching AC amplifier:I learned from this link:electriccircuits.yolasite.comThe is issue with this circuit is that the amplifier is not amplifying the input signal properly.Output transient:Too much power is lost during...

How can solar LED street lights replace AC LED street lights?
Hacker page by torr45838
Some people say that if LED street lights are not powered by solar energy, they will have no further value for use; Some people also say that solar power supply will only make the production cost of LED street lights more expensive, making it difficult...

20 years ago...
Hacker page by Mr. Piay
My first electronics project (20 years ago...) was a monitoring system for a photovoltaic test & research facility using a T100MD1616+ PLC programmable with TRiLOGI (Ladder + Basic) by Triangle Research.http://www.triplc.com/superplc.htm

AC/DC Bridges for measurement, Wheatstone bridge
Hacker page by teardownit
When servicing metal cable lines, measuring bridges are most commonly used. However, other devices are also available for locating cable faults. Firstly, they provide high accuracy in a wide range of measured values. Secondly, their use makes it possible...

My opinion on a Hi-Link AC-DC module
Hacker page by helge
Some manufacturers make low power AC-DC modules for small appliances, IoT devices and smart meters. MeanWell may come to mind (IRM-05-3.3), but one of the most cost-competitive modules is the Hi-Link HLK-PM03. Here I will have a closer look at how the...

How to maintain the AC servo motor control system?
Hacker page by Mark Liu
For the maintenance of ACservo motor control systems, the following are some common precautions:(1) Clean the servo motor and controller regularly to ensure that their surfaces are clean and to prevent dust, oil and other impurities from entering the...

Powering Up: Exploring the Types, Principles, and Applications of AC/DC Converters
Hacker page by alldigitalservicesforu
AC/DC converters, also known as rectifiers, are electrical devices used to convert alternating current (AC) to direct current (DC). They are used in a variety of electronic applications, such as power supplies, battery chargers, and electronic equipment....

Power supply characteristics. Turns the AC/DC power supply on and off. Low-cost parameter measurement.
Hacker page by teardownit
Power-on and parameters characterizing the behavior of the power supply when turned on Powering on the AC/DC source can be separated into the following phases: Connecting to the grid, charging the input capacitorsPreparing the power supply control circuit...

Motor Controller Software and Circuit for Dyson Vacuum Cleaner Motors
Hacker page by Hasan
Dyson V6 Setup and Running System Dyson handheld vacuum cleaners utilize high RPM brushless DC motors. Specifications indicate that some models can reach as high as 125000 RPM. I’ve disassembled DC56(V2), V6, and V10 models. Each has a brushless single-phase...

Computing In-Memory Technology: Mimicking the Brain to Boost AI Computing Efficiency 20 times.
Hacker page by witmem
The human brain, a mysterious biological computer, has long been the subject of study and imitation by scientists. With its 20 billion neurons and 600 trillion synapses, the brain is a marvel of nature, known for its complexity and efficiency. Experts...

ZX-81 Restoration Video Modification
Hacker page by Dave Collins
So while still waiting for HBSound's Prototyping sponsor, PCBWay, to finish up and ship off the prototypes for that project. I did have some time to work on the ZX81 Restoration. I am still working through the best way to clean...

Yet another ZX-81 Restoration
Hacker page by Dave Collins
Well here's another year :) I've made this as a space to manage my thoughts on this Zx81. To be honest there's probably better examples out there as to the correct way to do this. I would direct you to these places first. But if you're interested...

ZX-81 Progress / NTSC ULA Output
Hacker page by Dave Collins
Continuing from my last post, I had some time waiting on parts to finish the analog prototype testing for HBSound so I set up the new scope and ... It lives: I like to think about the video output as the consciousness of these old home computers....

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