The UCC28056EVM is an EVM for a PFC converter featuring the UCC28056, a CRM/DCM mixed-mode PFC controller. The EVM accepts an input voltage of 85Vac to 265Vac and provides an output voltage of 390Vdc ...
Hello everyone, I did a low temperature environment test on the device (the device specification book states that the nominal low temperature working temperature can reach -20 degrees). The actual tes...
BEIJING, China, January 14, 2020 – Qorvo, Inc. (Nasdaq: QRVO), a leading provider of innovative RF solutions for mobile, infrastructure and aerospace/defense applications, today announced that its UK ...
Thermal Assessment of Electronic Products
A good product should meet at least two points: 1. Meet regulatory and standard requirements; 2. Provide good user experience.
Regulations and standards will ...
Variable frequency series resonance It is a device that changes AC voltage, current and impedance. When there is AC current in the primary coil, AC magnetic flux is generated in the iron core (or magn...
Phase shifters are available in two forms: analog and digital. The phase shift of analog phase shifters can be continuously variable within a certain range, while the phase shift of digital phase shif...
1 Overview I just recently adjusted the I2C control of ADXL345 on TQ2440, and can view the inclination changes of the three axes XYZ through the serial port and TFT screen. I originally planned to ex...[Details]
Measuring AC voltage with a multimeter Step 1: Select the gear. The mains voltage is usually around 220V. According to the principle that the gear should be higher than and closest to the voltage bei...[Details]
From 00:00 on April 8, 2020, Wuhan City lifted the control measures on channels leaving Wuhan and Hubei. According to official news from Wuhan XMC, during the more than 70-day battle against the ep...[Details]
1. Selection of pointer meter and digital meter: 1. The reading accuracy of the pointer meter is poor, but the process of the pointer swinging is more intuitive, and the swing speed and amplitude can...[Details]
The Shanghai Consumer Council investigated 12 commonly used mobile apps on the market and studied the automatic renewal rules and deduction periods of these apps. It was found that some apps actually...[Details]
In modern scientific research and industrial production, digitally controlled DC current sources with high precision and good stability have been widely used. Most of the current sources used in the ...[Details]
In the previous issue, we introduced the test setup of WLAN. In this issue, we will introduce the conduction test of WLAN terminals.
The test environment is shown in the figure below:
...[Details]
In order to thoroughly implement Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era and the spirit of the 19th National Congress of the Communist Party of China, practice Xi...[Details]
Earlier this month, Realme announced that it will launch the Realme Q5 series in the Chinese market on April 20. The Q5 series will consist of three devices: Realme Q5 Pro, Q5i, and Q5. Now, the st...[Details]
After getting the STM8 board, I downloaded the 30-day trial version of IAR for STM8s from IAR official website. After installing it on the computer, I found that when installing IAR, the STLink drive...[Details]
The effective production capacity of China's paper industry has been growing continuously since 1990, especially since 1995. According to statistics, since 2000, 12 of the world's large paper machine...[Details]
Atmel(R) Corporation announces the availability of its AVR(R) 32-bit FlexRay(R) Evaluation Environment. Atmel will demonstrate the new technology at the FlexRay conference in Stuttgart, Germany, with...[Details]
0 Introduction
The reference
voltage
is
an indispensable parameter in the design of
mixed-analog
circuits
, and the bandgap reference voltage source is the most wid...[Details]
(Fan report by Zhang Ying) On July 25, at the 17th Edge Computing Industry Conference, the edge virtual person "Xiaoying" attracted the attention of the participants. "Xiaoying" is a 3D virtual digita...[Details]
Under uClinux, there are three main Web Servers: httpd, thttpd and Boa. Httpd is the simplest Web Server with the weakest functions. It does not support authentication and CGI. Both Thttpd and Boa ...[Details]