power electronics
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Columbia Engineers Develop Flexible Lithium Battery for Wearable Electronics Shaped like a spine, new design enables remarkable flexibility, high energy density, and stable voltage no matter how it is flexed or twisted The trend of Flexible and Wearable electronics is rising rapidly. Smart watches, smart glass, sensors and flexible displays-such as smartphones, tablets, and TVs etc. For this demand for high-performance… |
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DIY Power Bank Circuit The features of digital products are growing enormously, which triggers the frequent usage of smartphones in several applications. Thus, the battery backup time is decreasing. It will be fun to build a Power Bank for a Mobile Phone as a spare charging source for emergency purposes, which is also portable. In this article, we will discover how to make a power bank with… |
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New Wireless 'Power-at-a-Distance' Charging System can Charge Your Device within 3 Feet Range Wattup enables wireless charging that you can roam with your device in an area of 3 feet.
Charging your device wirelessly is easier to charge with wire and sit with it, San Jose-based startup, Energous, proclaimed on 26, December 2017 that they got the first such FCC certification for “power-at-a-distance” wireless… |
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Diodes: PN Junction, Types, Construction and WorkingWhat is diode?
In general, all the electronic devices need DC power supply but it is impossible to generate DC power so, we need an alternative to get some DC power thus the usage of diodes comes into the picture to convert AC power to DC power. A diode is a tiny electronic component used in almost all the electronic circuits to enable the flow of current in only one… |
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Different Types of Transistors and Their Working As our brain is made up of 100 billion of cells termed Neurons which are used to think and memorize things. Like as computer also have billions of tiny brain cells named Transistors. It is composed of chemical element extract from sand called Silicon. Transistors change the theory of electronics radically since it has been designed over half a century before by John Bardeen… |
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Complete Full-Bridge System-in-Package Includes MOSFETs, Gate Drivers, and Protection to Save Space, Simplify Design and Streamline Assembly STMicroelectronics developed a new module PWD13F60 which saves the material cost, lesser dimension (13*11mm) and contains a full bridge MOSFET with rating of 600v/8A, having a lesser board space in motor drives, lamp ballasts, converters and inverters.
This component boost end-application power density, also… |
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+12V and -12V Dual Power Supply Circuit The objective of this project is to convert 220V AC supply in to +12V and -12v DC supply, that is why it is named Dual Power Supply as we get positive and negative 12v power supply at the same time. This can be achieved in simple three steps: Firstly, 220V AC is converted into 12V AC by using simple step-down (220V/12V) transformer. Secondly, output of this transformer is given to… |
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PNP Transistors The first bipolar junction transistor was invented in 1947 at Bell laboratories. “Two polarities”is abbreviated as bipolar, hence the name Bipolar junction transistor. BJT is a three terminal device with Collector (C), Base (B) and Emitter (E). Identifying the terminals of a transistor requires the pin diagram of a particular BJT part. It will be available in the datasheet.… |
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Full Wave Rectifier Circuit With and Without Filter The process of converting alternating current into direct current is rectification. Any offline power supply unit has the block of rectification which converts either the AC wall receptacle source into a high voltage DC or stepped down AC wall receptacle source into low voltage DC. The further process will be filtering, DC-DC conversion and etc. So, in this article we are… |
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Half Wave Rectifier Circuit With and Without Filter The process of converting alternating current into direct current is rectification. Any offline power supply unit has the block of rectification which converts either the AC wall receptacle source onto high voltage DC or stepped down AC wall receptacle source into low voltage DC. The further process will be filtering, DC-DC conversion, etc., So, in this article we are going… |
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NPN Transistors The first bipolar junction transistor was invented in 1947 at Bell laboratories. “Two polarities” is abbreviated as bipolar, hence the name Bipolar junction transistor. BJT is a three terminal device with Collector (C), Base (B) and Emitter (E). Identifying the terminals of a transistor requires the pin diagram of a particular BJT part, it will be available in the datasheet… |
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Voltage Divider Circuit A Voltage or Potential Divider Circuit is commonly used circuit in electronics where an input voltage has to be converted to another voltage lower than then the original. This is very useful for all analog circuits where variable voltages are required, hence it is important to understand how this circuit works and how to calculate the values of the resistors… |
