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Semiconductor Physics and Devices
Published in Manoj Kumar Majumder, Vijay Rao Kumbhare, Aditya Japa, Brajesh Kumar Kaushik, Introduction to Microelectronics to Nanoelectronics, 2020
Manoj Kumar Majumder, Vijay Rao Kumbhare, Aditya Japa, Brajesh Kumar Kaushik
A diode is a semiconductor device that allows the flow of current only in one direction. It consists of two electrodes called cathode (negative terminal) and anode (positive terminal), as shown in Figure 1.6. When voltage polarity on the anode side is positive as compared to that on the cathode side, the diode conducts and is considered a low-value resistor. If voltage polarity at the anode side is more negative as compared to that on the cathode side, the diode is said to be in reverse-biased mode and it does not conduct. There are many types of diodes of which PN diode and Zener diode are the most important due to their applications. Here, we will explicitly explain about the PN diode.
Electrical systems
Published in Tom Denton, Advanced Automotive Fault Diagnosis, 2020
Diodes are often described as one-way valves, and for most applications, this is an acceptable description. A diode is a PN junction allowing electron flow from the N-type material to the P-type material. The materials are usually constructed from doped silicon. Diodes are not perfect devices and a voltage of approximately 0.6 V is required to switch the diode on in its forward biased direction.
Printed Circuit Board Terminology
Published in Robert P. Hedden, Cost Engineering in Printed Circuit Board Manufacturing, 2020
A diode is a component that permits the flow of electric current in one direction only. They are made of germanium and silicone, are usually coated in glass, and have a cathode and anode lead. Various types of diodes are shown in Figure 2.12.
Design and Analysis of Dual Output Three Level Inverter with Reduced Switch Count Topology
Published in IETE Journal of Research, 2023
The diode allows the current in ON state one direction and blocking current in another direction. So the diode loss can be calculated from following equation. The switching loss was calculated by using the following parameters: DC voltage = 200 V, switching frequency = 3 kHz, AC = 120 V, output Power = 1 kW. From the values above, the AC output current is calculated as 8.33 A and R load as 14 Ω. The switching loss calculation was carried out from the IGBT device as follows: Semikron SEMiX151GD066HDs. The ambient temperature is 40°C.
Heteroepitaxy of diamond semiconductor on iridium: a review
Published in Functional Diamond, 2022
Weihua Wang, Benjian Liu, Leining Zhang, Jiecai Han, Kang Liu, Bing Dai, Jiaqi Zhu
Diode known as rectifiers acts as a one-way switch for current, which allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. Homoepitaxial diamond diodes have been widely studied in the last twenty years while the study for heteroepitaxial diamond diodes are mainly concentrated in the last few years [90, 187–191] in Table 1.