As shown in Figure 1, connect 50Hz, 20V AC between C7 and R11. When C6=470pf, the output (op amp pin 7) is shown in Figure 2. When C6=10nf=10000pf, the output is shown in Figure 3. What is the reason?...
Dreams are personal things, so they can't really stand up to the test of scientific investigation methods. But the 18th-century English poet Colliers said that he heard someone reciting "Kublai Khan" ...
I am a novice and just started to learn uCOS-II. According to the top post of teacher wstrom, "Teaching you to use uCOS-II step by step", when compiling the first test project TEST_EX1_x86L, the compi...
The long-awaited board LPC1343 has arrived! ! Haha! ! The picture is below! ! !
These are the two packages that were delivered by express!! The big one is LPC1343, and the small one is two LPC1114 chi...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
0 Introduction
The load with impact (rapid change) power in the power system will cause the voltage fluctuation and flicker of the power grid, causing many electrical equipment to fail to wo...[Details]
Li/SOCl2 batteries (lithium sub-cells) have the advantages of high operating voltage, stable discharge voltage, wide operating temperature range and long storage life, and have been widely used in ...[Details]
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With the development of control, computer, communication and network technology, computer network integrated automation system has been widely used in modern industrial enterprises. The emergence o...[Details]
1. Introduction
The human balance ability is the basis for people to carry out various sports. People need balance ability to stand, sit, lie down, and walk. Once a person's balance ability is...[Details]
Fieldbus is a fully digital distributed underlying control network. Since its emergence, it has attracted widespread attention from researchers in the control field. However, for a long time, due t...[Details]
Abstract: Based on CPLD as the core, a manageable SAS hard disk backplane is designed. While conveniently replacing the faulty hard disk, it can indicate the working status of the hard disk by cont...[Details]
Google officially launched the new tablet Nexus 7 (center) and multimedia player Nexus Q (right).
MarketWatch reported on Wednesday (27th) that Google Inc. (GOOG-US) finally unveiled the t...[Details]
Fragment velocity is an important parameter for evaluating the explosive effectiveness of warheads. Traditional range fragment velocity measurement systems mostly use multi-channel data acquisition...[Details]
Analog electronics
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