In order to let everyone have a more intuitive understanding, we used a LCD screen mobile phone and OLED screen mobile phone for comparative testing. From the comparison video, we can see that under normal brightness, the OLED screen and the LCD screen do not “appear” to the screen flashing problem, while in the low […]
A super-twisted nematic display (STN) is a type of monochrome passive-matrix liquid crystal display (LCD). This type of LCD was invented at the Brown Boveri Research Center, Baden, Switzerland, in 1983. For years a better scheme for multiplexing was sought. Standard twisted nematic (TN) LCDs with a 90 degrees twisted structure of the molecules have […]
What is an LCD (Liquid Crystal Display)? A Liquid Crystal Display (LCD) is a flat-panel display technology that creates images by controlling light from a separate backlight. By combining the unique light-modulating properties of liquid crystals with polarizers, LCDs selectively block or allow light to pass through. Because they do not generate their own light, […]
IGBT (Insulated Gate Bipolar Transistor) is a minority carrier device with high input impedance and strong current carrying capacity. From the circuit designer's point of view, IGBT has input characteristics of MOS devices. And the current output capability of the bipolar device is a voltage-controlled bipolar device. The purpose of the invention of the IGBT […]
The electronic circuit can show the connection and control relationship of the complex electronic product in the most concise and intuitive form, so that the installation, debugging and maintenance personnel of the electronic product can understand the internal structure and working principle of the entire electronic product in a short time. Then complete the corresponding […]
The igbt, which combines the advantages of gtr and mosfet, is a new type of insulated gate bipolar transistor that was introduced in the 1980s. It has convenient control, high operating frequency, fast switching speed and large safe working area. With the continuous improvement of voltage and current levels, IGBT has become an ideal power […]
On August 5th, US time, ON Semiconductor officially changed its name to onsemi. After the name change, ON Semiconductor put forward a new slogan “Smart Technology, Bright Future”, aiming to create smart power and sensing technology with a highly differentiated and innovative product portfolio, solve the most difficult design challenges of customers, and empower a […]
Small PLC I/O points "256 points; single CPU, 8-bit or 16-bit processor, user memory capacity below 4K words; the main representative products are GE-I type from General Electric (GE) and TI100 from Texas Instruments F/F1/F2 of Mitsubishi Electric Corporation of Japan, C20/C40 of Tateishi Corporation (Omron) of Japan, S7-200 of Siemens of Germany, EX20/EX40 […]
IGBT basic application IGBT It is a device composed of a MOSFET (input stage) and a PNP transistor (output stage). It has the characteristics of small driving power and fast switching speed (control and response) of MOSFET devices, and bipolar device saturation. The voltage is reduced and the capacity is large (the power stage is […]
As one of the important high-power mainstream devices for power electronics, IGBT has been widely used in household appliances, transportation, power engineering, renewable energy and smart grid. In industrial applications such as traffic control, power conversion, industrial motors, uninterruptible power supplies, wind and solar equipment, and frequency converters for automatic control. The IGBT module […]
