Electronics Engineering

You can't make XOR out of NOT alone. Mathematically, NOT takes only a single argument, and its gate, an inverter, takes a single input. There's no way to combine two inputs giving a single output with one input gates. You need some two input gates to do the job. They can be AND, OR, NAND, NOR, or some combination, but you need something. That said, they don't have to be IC gates; you can combine two inputs with diodes to make an OR gate, so you could make XOR with only inverters and diodes, i.e. no other gate symbols on your schematic, but it would mot be making XOR out of NOT.

The transformer primary winding is connected to the alternating current supply. This causes a varying current in the primary winding, which creates a varying magnetic field in the transformer core. Because the primary voltage is alternating, the flux is also alternating - expanding and contracting, and changing polarity in time with the supply.

This alternating core flux 'cuts' the secondary winding/s of the transformer, and induces a voltage in the secondary coil/s. As long as there is a magnetic field that is moving, and a conductor for it to move across, it will induce a voltage in the conductor. While the actual induced voltage depends on the amount of flux, the amount of conductor material and the rate of change of the flux, the actual voltage can be calculated from:

Vsec = ((Vprim * Nsec) / Nprim)

where V = voltage, N = number of turns of wire in the coil, prim = primary and sec = secondary.

Transformers don't work on DC - they give a brief pulse out at switch-on and switch-off, because that's the only times the current is changing and the flux is moving. If you have to transform DC, you use a switching circuit that 'chops' the DC into a series of pulses that simulate AC as far as the 'moving flux' requirements of the transformer are concerned.

Mostly when we use electronic equipment that operate with digital circuits, signals, audio and in fact most consumer electronic devices require a smooth and stable source of supply to eliminate electronic noise and to ensure precision for voltage levels.

The traditional power supply would use a transformer to step-down the AC voltage, then convert it to a DC by using a rectifier circuit. The DC which consist out of the ripple of the original AC which will required to be smoothed with a ripple filter capacitor. This will smooth the DC to look almost like the output voltage of a battery.

By this stage the voltage is usable for many robust applications. However for most consumer electronics the filtering of the capacitor is not good enough to ensure a stable and smooth DC. Most modern microchips have very exact specifications which a power supply must comply too. Any ripple or fluctuation outside these limits will cause failure of the device or cause unwanted noise.

Therefore a circuit as simple as a resister and a zener diode can be used to regulate the voltage. This will mean that the voltage from the ripple filter stage will be reduced to a voltage lower than the lowest meaningful instantaneous voltage of the filtered voltage. Then all the voltage lower or equal to the regulated voltage will be passed while everything higher will be absorbed in some form of resistance for linear devices.

This regulator function would in most practical applications be in the form of an IC and often a heat sink is connected to it to deal with the dissipated power. This IC can also come in various technologies. For light current applications linear technology is popular since linear is known to have poor energy efficiency, but it forms a very cost effective solution, simple, compact and reliable. Switch mode technology becomes more energy efficient for higher currents and it has excellent efficiency which also allows it to consume very little energy and reduce the amount of heat which is produced. This type of technology has made high power applications such as battery chargers or amplifiers more compact and more cost effective when employed.

Some applications might even prefer to use dc-dc converters to isolate supply rails from others and have regulars built in.

Even transformerless technology, such as computer power supplies will at the last stage employ some form of regulator technology before presenting the supply voltage to the functional circuits.

The voltage regulator will for all theoretical purposes form the last functional stage of a power supply before a very stable and low noise output DC voltage is supplied, positive or negative.

it has a transducer in it, but is not one itself

The Anode.

Think of the arrow like a Capital Letter A standing for the Anode.

YES MIGRATION IS POSSIBLE FROM 1 COLLEGE TO ANOTHER IN PTU BUT ONLY AFTER 1ST AND 2ND YEAR...

means after 2nd semester and before 3rd semester AND after 4th semester and before 5th semester....preference will be given to the students having no supplies...

if u have deposited ur fee for 3rd or 5th semester,your fee will be transfered to your new college b\w 10-15 days...

NO OBJECTION CERTIFICATE must be provided by both the colleges...

Base unit

delta current

please give a simple defineatoin of transducer.

I would have to say, that the flip flops with the little pom poms on them are the cutest, but if you think that is too frilly, you could always go with the ones that have flowers on them.

The question is much too vague. Electronic devices can be designed to allow for direct or alternating current. Examples are your home DVD player plugged into the receptacle which is 120 volt alternating current and your ipod which uses battery direct current power. Small portable devices are usually direct current (battery power ). The plug that comes with such devices is for charging the battery. Or the device may internally rectify the alternating current and turn it into dc power.

light energy :)

ANSWER: THERMAL ENERGY

4volts x 2.8 =9.6 v

I've seen them starting at $3. check out froogle and search.

An effect of connecting a poor contact in an electrical circuit could be intermittent current flow.

First find the ratio of the transformer. 6600/220 volts. Second find the secondary current, I = W/E, 99000/220. Third divide the secondary current by the transformer ratio. The answer will be the primary current. To check your answer (W (or VA) = V x A) multiply the primary current times the primary voltage and the secondary current times the secondary voltage and they should both equal the transformer's kVA.

bunnysuit

air attacks

There are several purposes of PCB design services. These include layout based on customer provided schematic capture, layout based on Conformance Tech schematic capture, layout based on translated database from clients CAD package with compatible schematic capture, and layout re-construction of past projects which are updated to current standard deliverables.

Uplink translates also to Upload - where you send data to another destination.

Differences between scalar and superscalar processors generally boil down to quantity and speed. A scalar processor, considered to be the simplest of all processors, works on one or two computer data items at a given time. The superscalar processor works on multiple instructions and several groups of multiple data items at a time. Scalar and superscalar processors both function the same way in terms of how they manipulate data, but their difference lies in how many manipulations and data items they can work on in a given time. Superscalar processors can handle multiple instructions and data items, while the scalarprocessor simply cannot, therefore making the former a more powerful processor than the latter.

Scalar and superscalar processors both have some similarities with vector processors. Like ascalar processor, a vector processor also executes a single instruction at a time, but instead of just manipulating one data item, its single instruction can access multiple data items. Similar with the superscalar processor, a vector processor has several redundant functional units that let it manipulate multiple data items, but it can only work on a single instruction at a time. In essence, a superscalar processor is a combination of a scalar processor and a vector processor.

If the resistance is large enough, then there might not be enough voltage difference to allow much current. Since, Voltage = Current * Resistance, if resistance goes really large, and your voltage doesn't change, your current must decrease. An open circuit is where you do not have any current flowing, so whether no current verses very little current is the same is up to you.

Gate reverse bias

When some substances are subjected to mechanical stress this produces an electrical charge in them. If one of these same substances is subjected to an electrical charge it will undergo the same mechanical change in reverse. For more information please consider reading the wikipedia article about piezoelectricity.

A transistor is a switch. A diode directs the flow of current.