Alternating
Current (AC) : It is a current that inverses periodically and
has positive and negative values alternatively.
Asymmetrical Waveform :
It is referred as a current or voltage waveform that has unequal
digression above and below the horizontal axis.
Auto Transformer :
It is an electrical transformer that has only one winding and one or
more taps.
Breakdown Voltage :
It is the voltage supply or level that leads to insulation failure
in an electrical line. It can also be defined as the reverse voltage
at which a semiconductor device changes its conductance features.
Brownout : It is a
condition created during peak usage periods when the power supply
companies intentionally minimize their line voltage by approximately
10 to 15 percent in order to meet excessive demand.
Buck Regulator : A
switching power supply device that employs applying a series of
pulses by a switching device to an averaging L-C filter, which is
then applied to a load.
Direct Current (DC) :
Also known as continuous current, direct current is the constant
flow of electric charge from high to low potential.
DC-DC Converter : A
voltage regulator that produces regulated DC voltage output from a
different, unregulated input voltage.
Differential Voltage :
It is defined as the difference in voltages at two points measured
with respect to a common reference.
Isolation Transformer :
A transformer, which is used to disconnect two circuits. They
prevent current from flowing directly from one side to the other.
Linear Regulator : A
type of IC voltage regulator, in which the regulating element is a
transistor that operates in its linear path of operation.
Output Voltage : It
is the voltage measured at the output terminals of a power supply.
Output Voltage Accuracy
: It is the tolerance of the output voltage in percentage.
Overvoltage : It is
the voltage that exceeds specified limits.
Shunt : A low value
highly accurate resistor used to control current. It can also be
referred to as a parallel conducting path in a circuit.
Shunt Regulator : A
linear voltage regulator where the control element is placed in
parallel with the load, and in series with an impedance in order to
achieve constant voltage across the load.
Step-down Transformer :
A device that converts high voltage output into low voltage output
for providing power supply to low voltage AC equipment.
Step-up Transformer :
A power transformer that raises voltage from primary to secondary
source.
Voltage Stabilization :
The process, which makes use of a circuit or device to hold a
constant output voltage within given limits. It can also be defined
as a process of stabilizing an output voltage so that the effects of
various influence quantities are reduced.
Isolation Voltage :
The amount of voltage by which the output terminals of a stabilizer
can be operated off ground.
Under Voltage Protection
: It is a circuit to identify and react to a prolonged output
voltage that is below a threshold value. It is generally used to
protect against prolonged short circuit faults.
Electroplating or
anodizing bath : It is the electrolytic solution, which is used
as the conducting medium in which the flow of current is associated
by movement of metal ions for electroplating metal.
Current Transformer (CT)
: These transformers monitor the power flow and provides
electrical inputs to power transformers and instruments. Current
transformers generate either an alternating current or alternating
voltage, which is proportional to the calculated power.
Duty Cycle : The
percentage of time at which a transformer supplies the Full Rated
Power to the load.
Efficiency : Refers
to the percentage of input power available for use by the load.
Ferroresonance : A
technique used in open-loop power supplies that are intended to
regulate or stabilize voltage.
Rectifier : An
electrical device used to change AC power into DC power.
Transformer : A
passive electrical device that transfers energy from one AC system
to another. It is designed to change voltage from one level to
another by means of magnetic induction.
