Shunlongwei Co Ltd.

Shunlongwei Co. ltd.

IGBT Module / LCD Display Distributor

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1. What is an IGBT?   One of the most important components in power electronics is the IGBT.   The so-called IGBT (Insulated Gate Bipolar Transistor) is a composite full-regulated-voltage-driven-power semiconductor device composed of BJT (Bipolar Junction Transistor) and MOS (Insulated Gate Field Effect Transistor), which has its own The feature of shutdown.   To […]
integrated circuit Integrated circuit (Integrated circuit) is a kind of miniature electronic device. It uses a certain process to interconnect the transistors, resistors, capacitors, inductors and other components and wiring required in a circuit on a semiconductor substrate, and then encapsulate them in a tube. Inside the shell, a miniature structure with the required circuit […]
Two conductors close to each other sandwich a non-conductive insulating medium between them, which constitutes a capacitor. When a voltage is applied between the two plates of a capacitor, the capacitor will store charge. The capacitance of a capacitor is numerically equal to the ratio of the amount of charge on one conductive plate to […]
Transistor is a solid semiconductor device (including diodes, triodes, field effect transistors, thyristors, etc., sometimes referred to as bipolar devices), which has multiple functions such as detection, rectification, amplification, switching, voltage stabilization, signal modulation, etc. . As a variable current switch, the transistor can control the output current based on the input voltage. Unlike ordinary […]
1. Detect a small capacitor below 10pF. The capacity of a fixed capacitor below 10pF is too small. Use a multimeter to measure it. Only qualitatively check whether it has leakage, internal short circuit or breakdown. When measuring, you can use the multimeter R×10k block. Use two metal meter bars to connect the two pins of […]
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 […]