A push-pull circuit is also called a totem pole circuit. I don't understand how the name of the totem pole came from, but "push-pull" is more vivid.
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IGBT (Insulated Gate Bipolar Transistor) is a new type of composite device that combines the advantages of power field effect transistors and power transistors. It has both the high-speed switching and voltage drive characteristics of MOSFETs and the low saturation voltage of bipolar transistors. It has the advantages of high input impedance, fast working speed, good thermal stability and simple driving circuit, and has the advantages of low on-state voltage, high withstand voltage and large current.
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What Do You Know About Triode This time we expand the scope to NPN and PNP tubes, and give you some examples. The examples range from easy to difficult. If you can answer all of them, then you have a thorough understanding of triodes.
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Jiaen Semi provides customers with all-round high-quality technical support for deep cultivation of industrial control, photovoltaic inverter, power supply and other markets, and has established an application-level verification platform-metallographic microscope, 371 tester, K coefficient tester, TESEC T3430 dynamic test system, H3TRB high temperature and high humidity reverse bias system, PCT high pressure cooking test chamber, IOL intermittent life test system, HTXB high temperature gate bias reverse bias test system.
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To be honest, most of these circuits appear in interviews or textbooks to examine some people's understanding of triodes. But in the actual circuit, it is rare to see the triode working in the amplification area. Speaking of this, I also give reassurance to the college students in school. Every day in the textbook, "the collector is positively biased", and the "common collector and co-ejector" is very positive and that polar is reversed. To be honest, it is not very useful in work. If you do all these questions well, you will not be able to design an actual circuit; the engineer who designs the actual circuit may not necessarily be able to solve the problem.
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Jiaen Semi has launched new IGBT discretes -650V 75A & 650V 60A in TO-247 package . The two model adopts trench + field stop technology. They are with lower losses and higher energy efficiency for application such as solar inverter, servo drive amplifier and ups applications.
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