Electronics Engineering

Uninterruptible Power Supplies (UPSs) can be configured in parallel mode by connecting the output terminals of both UPSs. The capacity and all technical specifications and feautures of the UPS should match with another UPS. The UPS manufacturers ensure the synchronization of all UPSs connected in parallel using bus connectors that serve as frequency, phase, voltage, and current monitoring to maintain the stability of the systems.

It can be paralleled more than 2 units which is usually up to 8 units depending on the manufacturer's specification. Before switching on the UPS make sure that all the parameter settings are all the same for the rest of units to be paralleled. If all units are now running, if one UPS fails the protected load should not be affected since there are still some units that can be able to support the entire loads.

The short answer is that the circuit will have a very high level of current or the maximum amount that the voltage source can provide. Long Answer When analyzing electrical circuits the resistance of the wires is often ignored because it is so small and it makes the calculations easier. In reality all wires or conductors have a certain amount of resistance that affects the circuit. This makes it impossible to have a circuit without any resistance. Following that, Ohm's law can be used to describe what will happen in any circuit. Ohm's Law: Voltage = Current * Resistance or V = I * R Example: Very simple circuit A 12 volt car battery has a wire connecting the positive and negative terminals directly. The resistance of the wire is .001 ohms. What is the current? I = V/R I = 6volts / 0.001 ohms I = 6000 amps Of course, a car battery cannot provide this much current, so the maximum amount that it provide can will flow through the wire. Also, the wire will surely burn up from the high levels of current.

hi

I hope to be your friend ,& to get some knowledges from you about the SAT Transmitting devices & thanks alot for that ...

The question is (how to find (BUC) for some equipments ) & I hope to send these informations on my e.mail or F.B..

thanks again

yes

M Tech, if you want to continue in your profession (mechanical).

There are two basic types of diodes; Silicon and Germanium. I would use germanium because it has a lower forward bias than silicon. I suspect that what you really want to know is how to hook up an isolation diode. This is a diode that is installed in series with the alternate power source to isolate one from the other. Whether you use germanium or silicon the way that you want to hook it up is pretty straight-forward. go ahead and hook the negative (black) lead of the solar cell to the negative (black) lead of the battery. Hook up the positive (red) lead of the solar cell to the anode of the isolation diode and the cathode end of the diode hooks up to the positive (red) lead of the battery. You can identify the anode and cathode ends of the diode by looking on the diode - you will see a little diagram that looks like an arrow with a straight line at the tip of the arrow. the straight line side is the cathode end. Unless you have a really big solar panel you could probably use a general purpose diode such as a 1N4001 silicon (available at radio-shack)Hope this helped you.

the coil it is used to produce high voltage, low current, high frequency alternating current electricity. A burst of electromagnetic radiation is something the coil will not do.

It's a diagram showing the components and connections needed to build a voltage stabilizer.

The diagram will show a power transistor and a voltage reference, such as a zener diode.

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as far i think,there is no current flowing between two fully charged capacitor.current flow in a capacitor happens until it gets fully charged.if it is fully charged then there is no lack of potential,so no current flow.

A meter that can be used to measure multiple ranges of currents and voltages is called a multimeter. A common type of multimetera combination voltmeter, ohmmeter and milliammeteris abbreviated VOM

50V

20,000 watts

A: It is and it can be as simple as a diode resistor or as complex as an IC. A gate is also a function and you cannot get one without the other.

Logic gates can also be implemented with several nonelectronic technologies, fluidics (a type of hydraulics) is one of these.

When modulated with a radio frequency signal, they will indeed carry information. As in fibre-optic cables. The modulation may be of the several commonly used types, amplitude, frequency, phase ... modulation.

Chopper circuits need to turn the signal on and off. An SCR would not work in this case as, once it is turned on, it will not turn off until it is reverse biased.

1. the device will be larger and heavier, from a couple times larger and heavier to billions of times larger and heavier depending on the specific IC
2. the cost of the transistors and other components will be much much higher than the cost of the IC
3. it may not even be possible to make the device work, due to higher parasitic capacitance and inductance and the longer propagation delay times caused by the longer interconnects between parts
4. etc.

Shaft(rotor) of DC motor and Alternator(AC Generator) are alligned axially and radially to each other and connected.

A diode typically has low resistance for current in one direction, and high resistance

for current in the other direction. This is not really the description of anything that

could be called a 'switch'.

The ability of any component part to radiate heat depends partly on the materials it is made from and mainly on its surface area. So, as large-sized resistors have a much bigger surface area than small ones, the power rating of a resistor is made according to the power (Watts) it has been designed to dissipate safely without overheating.

Equipments (also called as Tools) are the devices required to perform and/or expedite a task. There are various types of tools including cutting tools, moving tools, shaping tools, fastening tools, guiding & measuring tools.

Instruments are the devices basically used to measure, record or identify any entity. It includes devices used in following sectors: electrical or electronic or scientific , medical, laboratory, vehicle, weather and measurement.

Analog signals are continuous where digital signals are discrete. Anolog signals are continuously varying where digital signals are based on 0's and 1's (or as often said------- on's and off's). As an analogy, consider a light switch that is either on or off (digital) and a dimmer switch (analog) that allows you to vary the light in different degrees of brightness. As another analogy, consider a clock in which the second hand smoothly circles the clock face (analog) versus another clock in which the second hand jumps as each second passes (digital). Digital computers work with a series of 0's and 1's to represent letters, symbols, and numbers. In addition, numbers are represented by using the binary code (where only 0's and 1's are used).

Number Binary equivalent

1----------------------------------------------1

2---------------------------------------------10

3---------------------------------------------11

4--------------------------------------------100

5--------------------------------------------101

6--------------------------------------------110

7--------------------------------------------111

8-------------------------------------------1000

and so on. So each number (that we are accustomed to, such as 5) is represented by 0's and 1's. Morse code uses dits (or dots) and dashes. Digital signals are similar to Morse code. The signal is either a dit or a dash for Morse code and it is either a 0 or 1 for digital. A series of these dits and dashes might represent SOS to a navy radio man, and a series of 0's and 1's might represent the question mark to a computer.

In a analog transmitter the RF carrier have to be modulated with the analog signal either by AM or FM where in digital transmitter the carrier is simply switched on and off a off = a zero and on = a one