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IGBT protection measures mainly include overvoltage protection and overcurrent protection. During use, for the switching surge voltage generated by the IGBT due to shutdown, an appropriate buffer cir...[Details]

As technology companies pay more attention to the construction of their own peripheral accessory product ecosystem, some giants have attracted many high-quality third-party accessory brands to join w...[Details]

Vortex flowmeter is a commonly used flow meter. The use of any instrument is always inseparable from daily maintenance and care. No matter it is a fault of the instrument itself or interfered by exte...[Details]

Measuring 220v leakage is not appropriate because what you want to measure is leakage current. Measuring weak AC current with a multimeter is weak, and it is troublesome to measure it inaccurately. I...[Details]

The pace of popularization of autonomous driving is accelerating. On January 12, the Ministry of Industry and Information Technology issued a document stating that 3.521 million new energy vehicles...[Details]

ATmega8 has an on-chip BOD (Brown-out Detection) circuit that detects changes in VCC during operation by comparing it with a fixed trigger level. This trigger level is set by the fuse bit BODLEVEL, 2...[Details]

      Each time the system is powered on/reset, the processor is in a state of minimum performance, that is, only the most basic functions. At this time, it can only read instructions from the reset v...[Details]

Data shows that my country's manufacturing value added increased from 16.98 trillion yuan in 2012 to 31.4 trillion yuan in 2021, and its share of the world's total increased from 22.5% to 30%, cont...[Details]

Almost everyone who uses a cell phone has experienced a few dropped calls. While system failures or glitches in these and other consumer products can be inconvenient, they are not catastrophic. How...[Details]

The LED display screen is mainly composed of three parts: current drive circuit and LED dot matrix array, control system and PC management software (Figure 1). The control system is responsible for...[Details]

A device that converts high-frequency electrical energy into electromagnetic field energy or converts electromagnetic field energy into high-frequency electrical energy is called an antenna. T...[Details]

In recent years, as energy conservation and environmental protection have received more and more attention, coupled with the substantial increase in electricity consumption in recent years, and the i...[Details]

1 Introduction Emergency power supplies are usually powered by batteries. In order to obtain a sufficiently high voltage, multiple batteries are usually connected in series, such as 24, 32...[Details]

#include iom128v.h #include macros.h #define uint unsigned int #define uchar unsigned char void delay_ms(uint n) {uint i=0,j; while(i n) {for(j=0;j 1000;j++);   i++; } } void pwm0_init(void) {DDRB=...[Details]

Jim Witham is the CEO of GaN Systems GaN (Gallium Nitride) chargers made a splash at CES in 2020, suggesting that this year will see widespread interest and adoption of these smaller, faster chargi...[Details]