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9
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6. HOW POWER CONVERTERS WORK
There are two stages involved in converting 12 volt DC (battery) power into
120V AC (household voltage):
STAGE 1: The power converter uses a DC to DC transformer to increase the
12-volt DC input voltage from the power source to 145 volt DC.
STAGE 2: The converter then converts the 145 volt DC into 120 volts AC
(household voltage) using advanced MOSFET transistors in a full bridge
configuration. A “modified sine wave” waveform is generated by this
conversion.
7. LED INDICATOR AND SHUTDOWN PROTECTION
The LED glows GREEN automatically when plugged into a 12 volt DC
source and will not glow under the following conditions:
1.
When the power input from the vehicle’s battery drops to approximately 10 volts,
low battery shutdown occurs and the converter shuts off. Recharge or replace
the battery.
2.
When the power input from the vehicle’s battery exceeds 15 volts, high voltage
protection occurs. Reduce the voltage range to between 12 volts and 14 volts.
3.
The continuous load demand from the equipment or device being
operated exceeds the continuous load rating of the converter. Use a
higher capacity converter or lower rated device.
4.
The case temperature becomes hot (exceeds 145°F). Allow the converter
to cool. Do not block the cooling slots or air flow over and through the
converter. Reduce the load on the converter to the continuous rated output.
RESET: To reset after shutdown occurs, remove the 12 volt plug from the
accessory outlet. Check the source of the problem and correct. Reinsert the
12 volt plug into the accessory outlet.