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12V, 5V
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∙ 15y ago
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Why scr is used in ac or dc voltage regulator?
The only use of an SCR in a powersupply regulator that I know of is a Crowbar protection circuit to force the breaker to pop if the regulation fails and the powersupply output voltage rises too high.
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.
What can a DC voltage be produced by?
A: AC recitification and battery source.
What are 4 types of DC voltage?
There is only 1 type of DC voltage, and that is direct current. In order to better answer your question, you need to be more specific.
Use of ic regulator?
To regulate a powersupply. The variations of voltage will be nullified by this ic. For example a three legged ic say number 7812 gives 12v dc supply if you are applying a voltage of 13 to 24vdc at a maximum current rate of 1 ampere. If applied voltage is 24v the dissipation will be approximately 12w.
What type of energy do the car and the batteries in the car have?
The Alternator outputs AC voltage which is converted to DC voltage. The battery stores DC voltage. The engine and all electronics run on 12 volts DC. The spark plugs fire with thousands of DC volts that are produced by the coils. It is all electrical energy.
What is the function of commutators?
To reverse the direction of current.it converts ac voltage produced at the armature to the pulsating DC voltage at brush terminals
Ac voltage applied across a load resistance produce alternating current?
The reason an AC voltage applied across a load resistance produces alternating current is because when you have AC voltage you have to have AC current. If DC voltage is applied, DC current is produced.
What is transformerless power supply?
One type is a special kind of switching regulated powersupply. It uses a simple rectifier to convert the input AC to DC, then the switching regulator sends very small current pulses to the output filter capacitors to keep them charged to voltages much smaller than the input voltage.An older type is what is called an AC/DC powersupply, because it could be plugged into either AC powerline voltage or DC powerline voltage. It was originally designed for inexpensive vacuum tube radios in the 1930s, when many parts of the US still had old style 110 VDC Edison power. Radios using this type of powersupply continued to be sold in the US through the 1960s, when transistors eventually made tube based radios obsolete.
What will happen if you use AC voltage instead of DC voltage?
For some equipment it doesn't matter, other types of equipment will be destroyed. For a simple electric heater or an incandescent bulb AC or DC are acceptable, provided the rms voltage of the AC is equal to the DC voltage. If the heater has a time switch, DC is unacceptable. A DC motor may or may not work with AC depending on its type and size. The commutator motor as used in vacuum cleaners is essentially a DC motor, but most types of AC motor are not interchangeable to DC. Electronic circuits usually required a DC supply and if AC is applied many of the components will be destroyed.
What component of a motor changes induced AC voltage into a pulsating DC?
its commutator..which converts ac produced by and motor to pulsating dc ... more the commutator divide more accurate dc..means less pulse in dc
How you can change a constant DC voltage to a variable DC voltage?
By installing the varialble resistor in the circuit,the constant dc voltage would change .
