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Saturday, June 8, 2013

How Inverters Work

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How Inverters Work 

Simply put, an inverter is an electronic device that converts low voltage DC (direct current) battery power to 115 volt (or 230 volt internationally) AC (alternating current) household electrical power. Hand-held inverters can be plugged into any vehicle cigarette lighter outlet, producing output power levels ranging from 50 to 250* watts. Larger, high output inverters can be hard wired directly to a DC battery source and deliver power from 800 to 2500 watts.* Intermittent operation only. Over 150 watts continuous requires direct connection to the 12 (or 24) volt power  Most inverters convert DC power in two stages. The first stage is a DC-to-DC converter that raises the low voltage DC at the inverter input to 145 volts DC. The second stage is the actual inverter stage. It converts the high voltage DC into 115 volts, 60 Hz AC (230 volt, 50 Hz internationally).The DC-to-DC converter stage uses modern high frequency power conversion techniques that eliminate the bulky transformers found in inverters based on older technology. The inverter stage uses advanced power MOSFET transistors in a full bridge configuration. This gives you excellent overload capability and the ability to operate tough reactive loads like lamp ballast's and small induction motors. Safe - do not install the unit in the same compartment as batteries or in any compartment capable of storing flammable gases or fumes such as gasoline. Do not install the unit in a zero-clearance compartment  Close to Battery - install as close to the battery as possible (keeping item #4 in mind) in order to minimize the length of cable required to connect the inverter to the battery. It is better and cheaper to run longer AC wires than longer DC  

Q: "Can I mount my inverter in a cabinet?"
A: Your inverter can be mounted in any location as long as it is clean, dry and has adequate ventilation. In general, it is best to keep your inverter as cool as possible.

Q:"Can the inverter be hooked up under the engine hood?"A: No, the inverter is an electronic device and should not be placed in the engine compartment. Criteria for an installation location is: dry, cool, ventilated, and safe.

Yes, as long as adequate ventilation is maintained. If mounting a high output inverter in this location, you must ensure that the bottom of the inverter remains unobstructed, as this is where the air intake is. If the intended mounting surface is not smooth (such as on carpeting), then you should raise that inverter with mounting blocks of some kind to

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