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Output power can never be more than input power. With a transformer, it is possible to increase the output current (while decreasing the output voltage), or to decrease the output current (while increasing the output voltage).
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What is the output voltage of megger is it ac or DC?
megger are available in ac &dc
What determines the output frequency of an ac generator?
It's speed and the number of poles.
Why dc output voltage of a bridge rectifier varies with the load current?
aA A: the output of a Bridger's rectifier will always follows proportionally to the load since it does not regulate the output it merely transform AC TO DC '
What is a voltage rectifier?
A rectifier is a device that is used to "change" (rectify) some kind of alternating current (AC) into direct current (DC). There is more to the story, but basically the rectifier is a "one-way" device that will permit current to flow though it in only one direction. That way one or more of these devices can be used in different curcuit configurations to change an AC input into a DC output.
What determines the speed of an AC motor?
The higher the frequency the higher the RPM the motor will turn
What is the Name of the transformer in which the output AC voltage is less than the input AC voltage?
It is a step-down transformer.
What is the required input and output voltages for a personal computer to power on?
input 220v ac & output 24v dc
What is the voltage for a printer?
Most of the printers offered in the USA have a voltage of 110V AC input and 8V AC output, whereas the printers offered in the Europe have input voltage of 220V AC and output voltage of 8V AC.
What is the meaning of dimmer stat?
Dimmerstat is the device with ac input an ac output. it consist of a variable transformer inside it so as to vary the output.
Should the input of an ac adaptor match the output of the device?
If it is an adapter then logically it should be adapting from one thing to another so no the output will not be the same as the input.
What is the type of transformer used to step down 230v ac to 48vdc?
A transformer alone cannot accomplish this. Transformers do not output DC directly, only AC. For DC output, additional components (rectifier, filter capacitor) are necessary. This would be properly called a DC power supply rather than just a transformer. To specify the proper power supply, you need at a minimum the input voltage (AC), the input frequency, the output voltage (DC), and the output current.
Can you use an AC adaptor with 9v output and plug it into a device that has 5v input?
No the voltage gap is too wide. If the higher voltage is used there is the possibility that the connected device might be destroyed.
Can you say which bridge rectifier voltage has the highest out put voltage?
A: NO the power output will be higher. Bridge rectifiers do not provide more voltage output it just add more power by rectifying both positive and negative voltage of the AC input
What is DC to DC conversion?
A DC to DC converter is a type of switching regulated powersupply whose input is a DC voltage, it then switches that rapidly to make AC, which is applied to the primary of a transformer, the transformer then either steps up or down the voltage as desired, the AC from the secondary is then rectified and filtered to provide the output DC voltage. Regulation circuitry measures the output DC voltage, continuously adjusting the switching circuits on the input to keep the output constant.Most switching regulated powersupplies are DC to DC converters with a simple unregulated rectifier and filter to convert the input AC to DC. Usually it is called a powersupply when it provides more than one output DC voltage or if its input is AC; whereas it is called a converter only if it provides just one output DC voltage and its input is DC. But most of the circuitry is the same in both cases.
How do you calculate primary AC for 3 phase ac input if output load dc current is known?
DC Current divided by 1.225
What is phase in current?
Phase applies only to AC current and not DC current. Reactive components - inductors and capacitors - in a system will result in the system output either lagging or leading (capacitance lags and inductance leads). If we apply an AC signal to the input of a system, we can observe the input and the output on an oscilloscope. If the system lags then the output signal will appear to be shifted to the right relative to the input singal, and vice versa for a system that leads. Since AC signals are periodic we think of one period as being 360 degrees (or 2*pi radians). The phase of output signal relative to the input signal is thus measured in degrees. For example: An AC signal of period of 10 seconds and a peak current of 2A is applied to the input of a system. The output is measured and it is found that the output current peaks 3 seconds after the input voltage - so the output lags the input, meaning the circuit has a capacitive reactance. What is the phase of the output relative to the input? Since T=10 and the phase difference in seconds is 3 the solution is simple: 360 / 10 * 3 = 108 degrees So; the output lags the input with a phase difference of 108 degrees.
What is in phase?
Phase applies only to AC current and not DC current. Reactive components - inductors and capacitors - in a system will result in the system output either lagging or leading (capacitance lags and inductance leads). If we apply an AC signal to the input of a system, we can observe the input and the output on an oscilloscope. If the system lags then the output signal will appear to be shifted to the right relative to the input singal, and vice versa for a system that leads. Since AC signals are periodic we think of one period as being 360 degrees (or 2*pi radians). The phase of output signal relative to the input signal is thus measured in degrees. For example: An AC signal of period of 10 seconds and a peak current of 2A is applied to the input of a system. The output is measured and it is found that the output current peaks 3 seconds after the input voltage - so the output lags the input, meaning the circuit has a capacitive reactance. What is the phase of the output relative to the input? Since T=10 and the phase difference in seconds is 3 the solution is simple: 360 / 10 * 3 = 108 degrees So; the output lags the input with a phase difference of 108 degrees.
