10081530-41017LF

Cause: For positive errors: ① The resistance value in series with the meter becomes smaller; ② The meter sensitivity is too high. Repair: ① Adjust the adjustable resistor in series with the meter;...[Details]

1 Introduction The acoustic parametric array (Parametric Array) is an acoustic emission device that utilizes the nonlinear effect of the medium and uses a transducer (array) to propagate tw...[Details]

#define CLI() __set_PRIMASK(1) //Disable the general interrupt #define SEI() __set_PRIMASK(0) // Enable the general interrupt __set_PRIMASK() is defined in core_cm3.h in the V3.5.0 library as follo...[Details]

On July 22, the Science and Technology Innovation Board celebrated its first anniversary. Since its opening, it has been favored by many outstanding semiconductor companies. Currently, more than 20 s...[Details]

Recently, the new 500kW photovoltaic grid-connected inverter (SunVert500HE) developed and upgraded by Beijing Nenggao successfully passed the quality supervision spot check of the General Adminis...[Details]

Digital Tube: The digital tube is composed of 7 light-emitting diodes forming a sun shape. If a decimal point needs to be displayed, then add another dot, which becomes an 8-segment digital tube.    ...[Details]

As we all know, power adapters are indispensable in daily life. This article will take the 5L0165R power adapter as an example to explain its circuit and fault troubleshooting. The travel charging p...[Details]

According to the Nihon Keizai Shimbun report, Japan’s Ministry of Economy, Trade and Industry announced yesterday (May 23) an amendment to the Foreign Exchange Law, adding 23 categories such as advan...[Details]

The contents of the etc directory mainly depend on the program to be run. Only three files need to be created here: etc/inittab, etc/init.d/rcS, etc/fstab. root@huanghuang-desktop:/work/nfs_root/...[Details]

01Introduction In the past two years, "going global" has become a new trend for domestic car companies, especially new energy car companies. Both traditional OEMs and new car-making forces are begi...[Details]

1. Classification Photovoltaic grid-connected inverter is a special device that converts the DC power generated by the photovoltaic effect (solar energy converted into electrical energy) o...[Details]

The key technology of TD-LTE is composed of some loaded signals. Due to the special way of the signals, how to carry out the same-frequency networking and how to operate it are placed in a very import...[Details]

On August 8, 2019, Harman was invited to attend the "New Driving Force of Automobiles - 2019 China Initial Quality Study (IQS) News Release and Automobile Quality Research Awards Ceremony" held by J...[Details]

Qualcomm Technologies announced last Thursday that it has achieved robust millimeter wave performance in multiple technical verifications and achieved a performance breakthrough in 5G millimeter wave...[Details]

Devices under test Crystals, voltage-controlled oscillators, and quartz resonators . Frequency range from 32kHz to 6GHz. Most devices are available in surface mount packages, with the...[Details]