How Power Inverters Work; Led Display - Schumacher PID-760 Manuel D'utilisation

start the engine every 2 to 3 hours and let it run for approximately 10 minutes to
recharge the battery.
Although it is not necessary to disconnect the inverter when turning over the
engine, it may briefly cease to operate as the battery voltage decreases. While
the inverter draws very low amperage when not in use, it should be unplugged to
avoid battery drain.

7. HOW POWER INVERTERS WORK

There are two stages involved in transforming 12 volt DC (battery) power into
120 volt AC (household voltage):
STAGE 1: The power inverter 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 inverter 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 is generated by this conversion.

8. LED DISPLAY

The LED display identifies the current status of the inverter.
VOLTS DC: The voltage of the vehicle's battery, Portable Power jump starter or
DC power source.
VOLTS AC: The voltage supplied to the device through the AC receptacle.
WATTS: The power or wattage supplied to the device plugged into the inverter.
An audio alarm will sound when any of the following codes display. To stop the
alarm, press the ON/OFF switch:
 – The inverter is not functional.
 – The vehicle's battery voltage is more than 15.5 volts. The inverter will
automatically restart after the voltage drops below 15.0 volts.
 – The continuous load demand from the device exceeds the inverter's
wattage output.
 – The inverter is overheated and automatically turns off for a period of 1 to
3 minutes to cool. Make sure the inverter is well ventilated. It will automatically
restart after it cools.
 – The vehicle's battery voltage is less than 10.5 volts.
 – Short circuit, power surge or overload in the device.
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