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
Jun 19 2020
I IntroductionPhotoresistor or light-dependent resistor (abbreviated as LDR) or photoconductor is a special resistor made of semiconductor materials such as cadmium sulfide or cadmium selenide. Its working principle is based on the internal photoelectric effect. The stronger the light, the lower the
Jun 18 2020
Ⅰ IntroductionA potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider, also commonly known as a pot. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat. The mechanical construction of pote
Jun 17 2020
I IntroductionA capacitor is an electronic component composed of an insulator between two conductors, like a sandwich. We can understand it as a container that holds the electric charge. In actual capacitors, two conductors are filled with an insulating dielectric. There are numerous types of dielec
Jun 15 2020
I IntroductionThe light-emitting diode is a commonly used light-emitting device, which emits energy through the recombination of electrons and holes. It is widely used in the field of lighting. Light-emitting diodes can efficiently convert electrical energy into light energy. Light-emitting diodes h
Jun 11 2020
I IntroductionSolid-state relays(SSRs) have unparalleled advantages over other relays, because it can make and break the circuit without contact or spark. In addition, with the progress of technology, the maturity of manufacturing and the decline in price, solid-state relay has become widely us
Jun 10 2020
I Introduction What is a blown fuse? A fuse is an electrical safety device that operates to provide over-current protection of an electrical circuit. Its essential component is a galvanized wire with antimony tin alloy that blows (melts) when too much current flows through it, thereby inter
Jun 6 2020
I IntroductionThis article introduces the basics of low voltage transformer, including the definition of low voltage transformer, the principle of low voltage transformer, its installation method, malfunction, and how to repair a household low voltage transformer. A transformer is an electr
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