-
Most oscilloscope probes have a removable plastic gripper. Removing this plastic clip exposes the probe's chip tube. If necessary, the device that holds the ground lead can be removed to expo...[Details]
-
On April 27, NavInfo released its 2019 annual report, stating that during the reporting period, the company's total operating revenue was 2.31 billion...[Details]
-
Recently, the 2015 Gaogong Lithium Battery and Electric Vehicle Annual Conference, the highest-level lithium battery industry event in China, was held in Shenzhen. In the "finale" of this annual co...[Details]
-
Although there are a lot of examples on the Internet, it still took me several days to run a small program implemented by USART through interrupts. It was extremely frustrating. Here are the problems ...[Details]
-
Today, I found such a problem while using stm32. The program was stuck inexplicably. First, let's look at the code that causes the crash. while ( ReadRawRC ( CommandReg ) & 0x10 );1 This is a wr...[Details]
-
environment Python:2.7.13 Development board: TQ2440 Toolchain: arm-none-linux-gnueabi-gcc 4.8.3 Overview Python3 has been ported to TQ2440 before. Now we will port Python2, which is basical...[Details]
-
The generation of three-phase SPWM can generally be achieved by comparing a sine wave with a phase difference of 120° with a triangle wave. A three-phase sine table can be composed of three indepen...[Details]
-
AD9854 Advantages and Features 300 MHz internal clock rate FSK, BPSK, PSK, LFM, AM operation Two integrated 12-bit digital-to-analog converters (DACs) Ultra-high-speed comparator, RMS jitte...[Details]
-
Circuit principle: The figure shows a broadband amplifier circuit using negative feedback. The amplifiers in this circuit all use transformer coupling, and the amplification part uses a combinatio...[Details]
-
In this paper, a linear array CCD data acquisition system based on complex programmable logic device (CPLD) is designed according to the actual application needs. The characteristics of data acquis...[Details]
-
On February 8, according to Phone Arena, the Samsung Galaxy S21 Ultra is about to come to an end, and the new flagship Galaxy S22 series will be on sale soon. It is reported that the purchas...[Details]
-
LED driver power supplies are currently developing towards high power factor, high output current accuracy, high efficiency, high reliability, low cost and small size. Therefore, the primary curren...[Details]
-
Many people wonder, "Is it better for companies in the automotive industry to develop new technologies themselves or to purchase them from outside?" Are companies that develop their own technologies ...[Details]
-
74HC595 digital tube program #include reg51.h //51 chip pin definition header file #include intrins.h //Internally includes delay function _nop_(); #define uchar unsigned char #define uint unsigned...[Details]
-
With the continuous advancement of solid-state lighting technology, COB (chip-on-board) packaging technology has received more and more attention. Due to the characteristics of COB light sources such ...[Details]