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Παρασκευή 7 Ιουνίου 2013
Equivalent Circuit for Ideal Operational Amplifier.....
IDEALIZED CHARACTERISTIC
Open Loop Gain, (Avo) Infinite - The main function of an operational amplifier is to amplify the input signal and the more open loop gain it has the better. Open-loop gain is the gain of the op-amp without positive or negative feedback and for an ideal amplifier the gain will be infinite but typical real values...
USB 2.0 and USB 3.0_Do you know the difference ???
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USB 2.0 :-High Speed or HS, 480 Mbps (Megabits per second)
USB 3.0 :- 10 times faster than USB 2.0. Super Speed or SS, 4.8 Gbps (Giga bits per second...
The buck–boost converter
The buck–boost converter is a type of DC-to-DC converter that has an output voltage magnitude that is either greater than or less than the input voltage magnitude.
Buck-boost converters are mainly used in regulated DC power supplies, where a negative polarity output may be required with respect to the common terminal of the input...
Construction Of A Relay Switch .....
A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where...
Full Wave Rectifier ......
A full-wave rectifier converts the whole of the input waveform to one of constant polarity (positive or negative) at its output. Full-wave rectification converts both polarities of the input waveform to DC (direct current), and yields a higher mean output voltage. Two diodes and a center tapped transformer, or four diodes in a bridge...
8 Common Mistakes While Working on Electronics Workbench....
1. Attaching Batteries.
2. Leaving Wire Joints Open.
3. Misplacing Soldering Iron.
4. Soldering for a Long Time at the Same Place.
5. Reversing Power Supply Polarity.
6. Touching CMOS ICs with a Charged Hand.
7. Removing ICs from the Socket without Using a Lever.
8. Soldering ICs without Using Sockets. ...
Scalytbot Snake (Snake Robot ) ....
Scalybot, a robot inspired by snakes that climbs inclined surfaces, was built by Georgia Institute of Technology's mechanical engineering graduate Hamid Marvi and his team. The objective of the research was to invent a robot with flexible movements that could be used as assistance systems for future rescue operations. After presenting...
LED or Light-emitting diode ...
A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Appearing as practical electronic components in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared...
Seven-segment display ....
A seven-segment display (SSD), or seven-segment indicator, is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot-matrix displays. Seven-segment displays are widely used in digital clocks, electronic meters, and other electronic devices for displaying numerical information.
The...
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