I'm a new member, please help me recommend a few good PCB proofing manufacturers, preferably those with good quality and low price, :) Thank you very much!!!...
The method of realizing high-resolution spaceborne SAR based on multi-channel antennas was studied in depth, the echo signal model of three-channel antenna SAR was established, and an echo processing ...
[Question: zyw]
Are the output edge and center modes of the PWM fixed or selectable?[Answer: George]
It is a choice.
[2009-6-18 10:25:07][Question: ningzb]
Hello, we are working on a power system devi...
I would like to ask an expert. I am currently working on a CCD acquisition system. The data is converted through AD9822. There are three pins in AD9822: SDATA, SCLK, and SLOAD. The instructions say th...
Today I played with the UC3843 floating buck, replacing the LM5116. The efficiency of 36V to 12V is 93%, and the efficiency of 48V to 12V is 91.5%. It has Schottky freewheeling and no optocoupler.
Pic...
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
TMC428 is a stepper motor motion controller from TRINAMIC. It can reduce the workload of motor control software design and development costs. The 3-axis stepper motor drive control system based on ...[Details]
In the 1980s, breakthroughs were made in the design and production of small, low-power quartz metal halide lamps with precise dimensions. At the same time, with the acceleration of people's lives a...[Details]
As we all know, the manufacturing of modern automobiles is divided into four major processes: stamping, welding, painting and assembly, and the powertrain constitutes five inseparable production pr...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
3. Driving circuit design
The power driver uses a field effect tube, which is a field-controlled device with a capacitance effect between the gate and source, so it has high requirements for t...[Details]
In the process of instrument application, there are many types of influencing factors of online gas analyzers and the changes are more complex. It is difficult to effectively control these influenc...[Details]
introduction
In industrial production and equipment maintenance, people often test coil winding turn-to-turn short circuit faults. For example, turn-to-turn short circuits in power transformer...[Details]
1. Don't say "Give me a code" as the first sentence when you see someone else's reply. You should think about why. When you figure it out yourself
and refer to other people
's
tips, you will...[Details]