Does anyone have the schematic diagram of this power supply? Or something similar is also OK. I want to modify it into a power supply with adjustable current and voltage....
To solve signal integrity problems, it is best to have multiple tools to analyze system performance. If there is an A/D converter in the signal path, it is easy to find three basic problems when evalu...
Why do I have to disconnect the power and reconnect it every time I burn the program to work properly? If I don't disconnect the power, there is no response at all. It's really strange! Please help me...
The development of high-end electronic components urgently needs a breakthrough 2006-7-12 At present, my country's electronic transformer/inductor products are still mainly at the medium and low leve...
I have a new Century Wind-628 SMS modem. I put a SIM card in it, connected the serial port and antenna, but the working light is off. Only the power light is on. There is no response when reading or w...
A parallel inverter consists of two thyristors (T1 and T2), a capacitor, a center-tapped transformer, and an inductor. The thyristors provide a current path, while the inductor L maintains a consta...[Details]
Is electromagnetic radiation from electric vehicles harmful to the human body? Recently, the issue of electromagnetic radiation from electric vehicles has garnered widespread attention. However, pu...[Details]
In recent years, many people have switched to new energy vehicles, and this type of vehicle has indeed been highly sought after and is considered the future direction of automobile development, and...[Details]
With the rapid adoption of smart electric vehicles, automotive chips are evolving from auxiliary control units to the foundation of the entire vehicle's intelligence. Their applications extend from...[Details]
1 Source of creativity
With the further development of electronic technology, electronic pets have gradually entered people's family life. At present, there are two main categories of relative...[Details]
With the development of science, the use of variable frequency technology is becoming more and more widespread, and it is used in both industrial equipment and household appliances. Inverter air co...[Details]
Permanent magnets are essential components in a wide range of household and industrial devices. They are particularly crucial in the renewable energy sector, including electric vehicle motors. Curr...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
1. Introduction
In 2015, Apple's new MacBook and Apple Watch both featured force-sensing technology, which Apple calls Force Touch. Each time a user presses the touchpad, the device not only p...[Details]
On August 20, Huawei Device announced that the all-new M7 is the first to feature an in-cabin laser vision solution. This solution offers enhanced active safety capabilities compared to primary vis...[Details]
ESD protection diodes are specialized for small-signal ESD protection or surge protection TVS arrays, often used for multi-circuit protection. Their small package size, low on-state voltage, high i...[Details]
Bearing wear is a common equipment problem in the manufacturing industry. In today's world where controlling production costs is advocated, using repair technology to reduce the scrapping and repla...[Details]
Deep in the laboratory, a seemingly ordinary piece
of
battery
material
was fed into the China Advanced Research Reactor (CARR). Scientists activated the neutron depth profiling device,...[Details]
1. Static Balance
Static balancing is performed on one correction surface of the rotor. The remaining unbalance after correction is used to ensure that the rotor is within the specified range ...[Details]
No one expected that after about a day of downtime, four or five thermostats on the control panel would display four 0000s and flash. We knew it was caused by poor contact of the temperature sensin...[Details]
DIY/Open Source Hardware
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