Electronics, embedded, microcontroller, pic, projects, hobby circuits, circuit, blog, transistor, technology

The First Chemical Circuit Developed

Ion Transistors for the transport of both positive and negative ions, as well as biomolecules had been previously developed by a group of Organic Electronics research team at Linköping University. Now Tybrandt has now succeed in developing circuits using these Transistors similar to traditional silicon electronics. In essence of this technology we can build computer chips that can directly interface with our body cells. The major advantage of chemical circuit is that the charge carrier consists of chemical substances with various functions and this gives us new opportunities to...

Nano Vacuum Tubes : The Future of Computing

Vacuum Tubes Reloads.... Vacuum Tubes are used in computing, switching, amplification and rectification right up to 60s. Then it died a quick death since most applications solid state device such as semiconductor devices have replaced them. We all know that Semiconductor devices are small in size and cheaper than vacuum tube devices. Silicon transistors are cheaper but they are slower and susceptible to radiation. The performance of Silicon Transistors, far away from Vacuum Tube devices due to their compact size, no heating time, reduced time...

Implementing XOR and XNOR Logic Functions using Diode Bridge and Transistor

Using DTL (Diode Transistor Logic) we can implement XOR and XNOR Logic Functions with a minimum number of Discrete Components.   When we need to design Logic Circuits operating for higher than standard supply voltages, such as 30 and 24V, we can implement it by using regulators with standard logic family and interfacing it through Level Shifters. Alternatively we can implement Logic Gates from discrete electronic components and can be operated directly from the supply voltages if the Logic Circuits are not complex. We know that Basic...

Samsung’s New Transistor Structure using Graphene

Samsung Electronics has Developed a new Transistor Structure using Graphene to increase the possibilities of transistor in future, reported online by the journal Science, 17th May.  The core R&D incubator for Samsung Electronics, Samsung Advanced Institute of Technology has developed new Graphene Transistor Device structure to hold the Moore's law true for a decade. This research is regarded as a significant step in the development of  transistors, that can overcome the limitations of conventional Silicon Transistors. We all know that Semiconductor Electronics Devices consists of...

‘Graphene Quilts’ To Cool High-Power GaN Devices

Gallium Nitride is a binary semiconductor commonly used in bright LEDs since 1990's and used in wireless applications due to its high voltage operation and high efficiency operation. Since 2006 Graphene Transistors have been offered commercially. But like all other high power devices, the problem is to remove significant amount of dissipated heat which has to be removed fast and efficiently. Various Thermal Management solutions such as Composite substrates or  Flip-Chip Bonding   (also known as Controlled Collapse Chip connection or its...

L293D – Quadruple Half H DC Motor Driver

L293D L293 and L293D are quadruple half H Bridge driver having high current capability. It can also be seen as a dual H Bridge driver for driving Motors. L293D can provide currents up to 600mA and L293 can provide currents up to 1A at voltages ranging from 4.5 to 36. Both L293 and L293D are designed to drive inductive loads such as solenoids, relays, dc motors, bipolar stepper motors and other high current or voltage applications. Features Wide range of supply voltage from 4.5 to 36v Separate Input Logic...

DC Motor Driving using H Bridge

H Bridge is a simple electronic circuit which enables us to apply voltage to load in either direction. It is commonly used in robotics application to control DC Motors. By using H Bridge we can run DC Motor in clockwise or anticlockwise directions.  This circuit is also used to produce alternating waveforms in inverters. Basic H Bridge Basic H Bridge Circuit When switches S1 and S4 are switched on, motor runs in clockwise direction. Basic H Bridge Working When S2 and S3 are switched on,  motor runs in anticlockwise...

D Flip Flop Conversion Techniques

D Flip Flop is primarily meant to provide delay as the output of this Flip Flop is same as the input. D Flip Flop can easily be made by using a SR Flip Flop or JK Flip Flop. But sometimes designers may be required to design other Flip Flops by using D Flip Flop. Here we discuss how to convert a D Flip Flop into JK and SR Flip Flops. The first thing that needs to be done for converting one...

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