Aug 12 2020
IntroductionThe relay is an electrical device regarded as a switch in the circuit. That is, the current in the control circuit depends on the "open" and "close" of relay contacts. Therefore, the reliability and service life of the relay depend on the quality and performance of the contacts
Aug 7 2020
Introduction Capacitors are components that store electricity and electrical energy (potential energy), and play an important role in circuits such as tuning, bypassing, coupling, and filtering. Capacitors are connected in parallel to increase capacity, and capacitors are connected in series to dec
Aug 5 2020
Introduction A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. Because of unique cha
Jul 31 2020
Introduction Simply put, an oscillator is a device that can convert DC power into AC power without external signal excitation. The so-called "oscillation" implies alternating current. This article will mainly explain the circuits of different sine wave oscillators, including their working principle
Jul 29 2020
Introduction A relay is an electronic control device, which has a control system (also called an input loop) and a controlled system (also called an output loop). It is often used in automatic control circuits. In fact, it is an automated switch using smaller current to control a larger&n
Jul 23 2020
Introduction What is the difference between a three-phase AC motor and a single-phase AC motor? If you pay attention to it, you will find that single-phase AC motors have one more equipment than three-phase AC motors, which is the start capacitor(starting capacitor). The most common one is in vario
Jul 23 2020
Ⅰ IntroductionThe vacuum tube was an essential part of early radios, used to create and amplify the electrical signals needed for the radio to work. The vacuum tube radio was a new stuff of the early 20th century, and immediately became the "new favorite" of that era with the launch of the radio sho
Jul 6 2020
Ⅰ IntroductionComputer memory is used to store programs and data. The main function of memory is to read and write. For random access memory RAM, their main functions are to read and write, and for read-only memory ROM, the main function is only to read. In general, the memory can be
Jul 2 2020
I OverviewValve regulated lead acid battery (VRLA battery) is generally divided into gel battery and AGM battery. Figure 1. Classification of VRLA Battery Gel battery is a valve regulated lead acid battery made by gel technology which not only refers to whether the batter
Jun 20 2020
Ⅰ Introduction1.1 Diode Structure and Symbol This Video Clearly Explains the P-N Junction Semiconductor Diode Basic diode consist of a tube, a case and two electrodes. The tube is a PN junction, and a pin is drawn at each end of the PN junction. Use plastic
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