Basic knowledge about MOS tubes

01 Judgment of three poles G pole (gate) – the gate, needless to say, it is easier to recognize; S pole (source) – source, whether it is P channel or N channel, the intersection of the two lines is; D (drain) – The drain, whether P-channel or N-channel, is the side of the separate lead. […]

Read More

Unilumin has become an "aircraft carrier base" for innovative manufacturing of Mini LED displays worldwide

The world's largest intelligent manufacturing base for LED displays was completed in Unilumin Technology Daya Bay Technology Park. As a major event in the LED industry and China's manufacturing industry, nearly 100 Chinese and English media, portal websites and LED industry media, including Global Network, Tencent, NetEase, Sohu, Beijing Evening News, China Securities Journal, Securities […]

Read More

Hardware design of RS-485 interface circuit

1) Bus matching. There are two methods of bus matching. One is to add matching resistance. A 120 Ω matching resistance should be bridged between the differential ports VA and VB at both ends of the bus to reduce the reflection and absorption noise caused by mismatch and effectively suppress the noise interference. However, the […]

Read More

Can operational amplifiers be used as comparators

Many people occasionally use operational amplifiers as comparators. Generally speaking, this is feasible when you only need a simple comparator and you have a “redundant” operational amplifier in the quad operational amplifier package. The phase compensation required to stabilize the operation of the operational amplifier means that when the operational amplifier is used as a […]

Read More

Application of LED colorful lamp in LED decorative lighting

Light emitting diode (LED) is a commonly used light-emitting device, which releases energy through the recombination of electrons and holes. It is widely used in the field of lighting. Light emitting diodes can efficiently convert electric energy into light energy, and have a wide range of applications in modern society, such as lighting, flat panel […]

Read More

Motor driver chip based on ir2127

Through datasheet, we know that this is a single channel drive chip with current detection function. It is a high-end drive, i.e. the upper arm MOS tube drive, which requires an external bootstrap diode. Ir2121 is a low-end drive, i.e. the lower arm MOS tube drive, which does not require an external diode. Ir2125 and […]

Read More

Embedded circuit design (embedded speech recognition circuit / triode basic circuit / embedded hardware circuit)

Embedded circuit design (embedded speech recognition circuit / triode basic circuit / embedded hardware circuit) Source: Author:October 29, 2021 17:14 0 share Wechat QQ space Sina Weibo Tencent Weibo Renren [guide]There are few analog circuit design components in embedded circuit design, and most of the commonly used simulator devices are diodes and transistors. key word:Embedded […]

Read More