Power Inverter Output Waveform; Protective Features - DeWalt DXAEPI140 Manual De Instrucciones

Some products must be powered from a pure sine wave power source,
such as standard household power, or a "pure sine wave" inverter in
order to function properly.
Your product could be damaged by this inverter if it contains:
• Microwave ovens;
• Transformerless battery chargers
• Capacitive coupled power supplies
If an incompatible product is used with this inverter:
• The product might not operate at all, with no indication of failure. The
product fuse might open as a result of trying to use it with the inverter.
• The product might exhibit unusual operation (such as, intermittent
operation, buzzing, and the like.)
NOTE: Some laptop computers may not operate with this inverter.
WARNING: If the product does not operate normally, to
reduce the risk of injury or property damage, turn the product
off immediately and unplug it from the inverter.
CAUTION – To reduce the risk of injury: Do NOT touch the metal
part of the DC plug after use as its surface may be quite hot after
extensive operation.
SAVE THESE
INSTRUCTIONS
FOR FUTURE USE
DXAEPI140_ManualENSP_062117.indd 6-7
Components (Fig. 1)
Front Back
A. 12V DC accessory plug E. Holes for attaching the
mounting clip
B. Three-prong 120 volt AC
outlet (under protective F. Mounting clip
cover)
G. Mounting clip screws
C. USB power ports (under (2 pcs.) (KA3x12)
protective cover)
H. Mounting clip double-sided
D. On/off button with power/ tape (2 pcs.)
fault LED indicator
A
D
C
B
6
How This Inverter Works
E
This inverter is an electronic device that converts low voltage DC (direct
current) electricity from a battery to 120 volts AC (alternating current)
household power. It converts power in two stages. The first stage is
a DC-to-DC conversion process that raises the low voltage DC at the
inverter input to 145 volts DC. The second stage is a MOSFET bridge
stage that converts the high voltage DC into 120 volts, 60 Hz AC.

Power Inverter Output Waveform

The AC output waveform of this inverter is known as a modified sine
wave. It is a stepped waveform that has characteristics similar to the
sine wave shape of utility power. This type of waveform is suitable for
most AC loads, including linear and switching power supplies used in
electronic equipment, transformers, and small motors.

Protective Features

F
The inverter monitors the following conditions:
G
Input Voltage Too Low: This condition is not harmful to the inverter,
but could damage the power source, so the inverter will automatically
shut down when input voltage drops below 10.5 ± 0.5 volts DC.
Input Voltage Too High: The inverter will automatically shut down
when DC input voltage exceeds 16 ± 0.5 volts, as this can harm the
unit.
Thermal Shutdown Protection: The inverter will automatically shut
down when the unit becomes overheated.
H
Overload/Short Circuit Protection: The inverter will automatically
shut down when an overload or short circuit occurs.
IMPORTANT NOTE: The Power/Fault LED Indicator will flash to
indicate an input voltage too low, input voltage too high, thermal fault
condition or to indicate an overload or short circuit fault condition before
automatic shutdown occurs.
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