The P-region is sandwiched between N-regions. NPN Transistor is formed by the combination of two N-type materials and one P-type material. Related Post: Bipolar Junction Transistor (BJT) – Construction, Working, Types & Applications.The output impedance is very high due to collector-emitter reverse bias. Since its base-emitter junction or input is forward biased, the input impedance is very low. This current is directly proportional to the base current. By connecting the base-collector junction in reverse and base-emitter junction in forward bias allows the flow of current between emitter and collector. It means it uses the input current at its base terminal to control the output current or collector current. The emitter and collector are both heavily doped with the emitter comparatively heavily doped than the collector.īJT is a current controlled device. The base is the most lightly doped layer of all. The base is the middle layer sandwiched between Emitter and Collector. While the junction refers to the boundary between two different semiconductor materials usually known as PN junction. Bipolar means that it uses both types of charge carriers i.e. This is because the transistor transfers its resistance from one end to another end based on the input signal.Ī transistor is mainly classified into two types:īJT or Bipolar Junction Transistor is a type of transistor that is bipolar and has a junction. The word “ Transistor” is the combination of two words “Trans” for “ Transfer” and “istor” for “ Res istor”. A small current or voltage at its input can be used to control very high output voltage or current. Heterojunction Bipolar Transistor (HBT)Ī transistor is a three-terminal semiconductor device that is used for the switching or amplification of a signal. To learn more about our High Voltage, High Frequency Transformers capabilities, contact Agile Magnetics today. Our High Voltage, High Frequency Transformers can be built to UL, CUL, VDE, and CE standards, and can feature UL and CUL markings when requested. The finest quality in the industry is guaranteed with our ISO 9001:2008 and AS9100 certifications. We also perform 100% computer testing for each High Frequency, High Voltage Transformer we manufacture, with full lot data included with every packing slip when requested. No matter which options our clients choose, our High Voltage, High Frequency Transformers are designed and manufactured to fully comply with RoHS and other standards.Īgile Magnetics employs computer modeling for all custom-designed High Voltage, High Frequency Transformers with our proprietary software, allowing for all electrical specifications to be included beginning with the design phase. The applications for High Frequency, High Voltage Transformers are increasing with new applications for alternative energy generation such as wind turbines, for hybrid autos, and a wide array of other industrial applications in transportation (braking systems), manufacturing, waste cleanup (electrostatic precipitators), and plasma generation. They are often found in high level applications, such as power supplies and lasers. With more than 20 years of experience in providing customers with the industry’s best transformers, our team at Agile Magnetics is well equipped to help you select the best High Voltage, High Frequency transformer for your job.Īt our 40,000 square foot home in Concord, New Hampshire, our engineers use a fleet of new equipment to design and manufacture the finest quality products.įor heavy duty applications, the High Voltage, High Frequency Transformers are able to accommodate 15,000 volts with the highest levels of safety and accuracy. High Voltage, High Frequency Transformers Single and 3-Phase Transformers in Enclosures.High Voltage, High Frequency Transformers.
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