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How This Inverter Works; Power Inverter Output Waveform; Operating Instructions - Black & Decker BDI200 Instruction Manual

200w power inverter with usb

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HOW THIS INVERTER WORKS

This inverter is an electronic device that converts low voltage DC (direct current) electricity from a
battery to AC (alternating current) household power. In designing this inverter, Black & Decker
has incorporated design techniques previously employed in computer power supplies. The result
of these design innovations is a smaller, lighter and easier-to-use power inverter.

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.
The modified sine wave produced by this inverter has an RMS (root mean square). Most AC
voltmeters (both digital and analog) are sensitive to the average value of the waveform rather than
the RMS value. They are calibrated for RMS voltage under the assumption that the waveform
measured will be a pure sine wave. These meters will not correctly read the RMS voltage of a
modified sine wave. Non-TRUE RMS meters will read about 20 to 30 volts low when measuring
the output of this inverter. For accurate measurement of the output voltage of this unit, use a
TRUE RMS reading voltmeter such as a Fluke 87, Fluke 8080A, Beckman 4410 or Triplett 4200.
AC Output
CAUTION – Rechargeable Devices
• Certain rechargeable devices are designed to be charged by plugging them directly into an AC
receptacle. These devices may damage the inverter or the charging circuit.
• When using a rechargeable device, monitor its temperature for the initial ten minutes of use to
determine if it produces excessive heat.
• If excessive heat is produced, this indicates the device should not be used with this inverter.
• This problem does not occur with most battery-operated equipment. Most of these devices
use a separate charger or transformer that is plugged into an AC receptacle.
• The inverter is capable of running most chargers and transformers.
®
MAXX SST
Soft Start Technology
Black & Decker's Soft Start Technology gradually "ramps up" the inverters power to slowly start
appliances that require a surge to get started. This gradual ramp up protects the inverter and the
appliance, as well as the power source, from damage and failure.

OPERATING INSTRUCTIONS

The Power Inverter must be connected only to batteries with a nominal output voltage of 12 volts.
The unit will not operate from a 6 volt battery and will sustain permanent damage if connected to
a 24 volt battery.
Always connect the BDI200 to the 12 volt DC power source before plugging any devices into the
unit.
The standard AC and USB outlets allow simultaneous operation of multiple devices. Simply plug
the equipment into the unit and operate normally. Ensure that the wattage of all equipment
simultaneously plugged into the BDI200 does not exceed 200 watts continuous.
®
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