-
A few days ago, an ACS800 inverter experienced current and frequency fluctuations just after it was turned on, and the amplitude of the fluctuations was relatively large, completely exceeding the a...[Details]
-
Self-driven synchronous rectification
Here are three types of synchronous rectification circuits : flyback, forward and push-pull . When working near the normal input voltage value, the effect is...[Details]
-
Specific implementation functions The system consists of STC89C52 single chip microcomputer + ZE08-CH2O formaldehyde sensor + LCD1602 liquid crystal display + button + buzzer + indicator light + powe...[Details]
-
Since there are many types of textile testing instruments, with different performances and prices, and many manufacturers, when purchasing instruments, one must not only be familiar with professional ...[Details]
-
Aiming at the problems of power consumption, real-time performance, expansion compatibility and cost in the actual application of visibility detector, this paper proposes a design scheme based on S...[Details]
-
The MCU shortage is unlikely to be alleviated due to the concentration of production capacity and repeated epidemics. MCU is the core chip used for automotive control, and its application scope cov...[Details]
-
GaN Systems, a global leader in GaN power semiconductors, today announced a strategic alliance with Shanghai Ansper Energy Technology to jointly accelerate and expand the development of GaN po...[Details]
-
My development environment: Windows 7 32-bit, J-linkv8, a mini2440 development board. Finally, I chose: MDK4.72 version, the latest version of J-ink v8, J-linkARM v4.94.
1) Open Keil uVisi...[Details]
-
Preface Not long ago, a friend of mine who was a tester switched to a development job. He encountered a question in the interview, and he didn't understand it, so he called me to ask. The question wa...[Details]
-
The Ministry of Industry and Information Technology, the Ministry of Finance and the State Administration of Taxation issued the Announcement on Adjusting the Technical Requirements for New Energy Ve...[Details]
-
Neatly arranged cabinets, colorful cables, and soft rhythmic sounds, everything in the "multi-station-in-one" all-DC prefabricated data center meets the characteristics of a modern "data warehouse"...[Details]
-
In October,
robot
listed companies intensively released their third quarter financial reports for 2023. Financial reports are a guide for the outside world to understand the true survival s...[Details]
-
The method to use a multimeter to check whether the capacitor is damaged is as follows. When checking, first turn the multimeter selection knob to the ohm range R×1kΩ or R×l0kΩ, and then touch ...[Details]
-
Previously, the common method for detecting viruses was to culture and separate organisms and their cells, and then observe them under a microscope. This usually takes 1 to 2 weeks, and this meth...[Details]
-
1. Will the mobile phase in the column be drained?
Many people who do chromatographic separation experiments have encountered such a situation: the mobile phase is not replenished in time, ...[Details]