Power
Conversion Rectifier, Inverter, Battery Charger
UPS devices
protect against power surges, brownouts and line noise. A UPS has
3 main components:
Rectifier, Inverter, Battery.
A rectifier
is a nonlinear circuit component that lets more current to flow
in one direction than in the other. Rectifiers usually allow current
to flow in one (forward) direction unimpeded, but don't allow current
to flow in the opposite direction. Rectification isa switching action
- the switch closed for current in one direction and open for current
in the other direction. Rectifiers primarily convert alternating
current (AC) to direct current (DC). In telecommunications equipment
the rectifier changes AC (alternating current) input into a regulated
and filtered DC (direct current) output. The DC
output supplies power to the communications equipment
and charges a backup battery.Telecommunications equipment is sensitive
to voltage jumps from the rectifier, so rectifiers need to filter
the DC output.
Rectifier systems
now have remote control, control panels, self-diagnostic programs,
and alarm systems. Some systems are swappable so that the exchange
can be removed, or other power system components can be added.
The Rectifier converts
AC power to DC power and stores line power in the battery so that
the battery charging process is only affected by power disruptions
because the rectifier is alredy charging the battery. The
Inverter converts DC power to AC poer for equipment,
and supplies continous power. The battery provides uninterrupted
power to the inverter. The Battery
actually stores the power for use when the power source is interrupted.
It also determines how long the UPS will support your equipment.
Power Conversion
Power conversion is the process of converting power from one form
into another, and could include electromechanical or electrochemical
processes.
Power
conversion systems often include redundancy and voltage
regulation, and types of conversion include: DC to DC, AC to DC
(power supply), Rectifier, Switched-mode power supply, DC to AC
(inverter), AC to AC, Transformer/autotransformer, Voltage regulator,
Voltage to current (current source).
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