Pure Sine Wave Inverter

DC/AC pure sine wave inverters, with power ratings from 700W to 30kW, feature rugged designs and high reliability while providing clean, utility grade power. Schaefer offers the industry's most complete range of input and output voltages, with a selection of package styles and mounting configurations. Some of our highly advanced designs feature integrated a UPS, static switch, battery charging and/or parallel capabilities.

Here are some advantages of pure sine wave inverter over modified sine wave inverter:
a) Output voltage wave form is pure sine wave with very low harmonic distortion and clean power like utility-supplied electricity.
b) Inductive loads like microwave ovens and motors run faster, quieter and cooler.
c) Reduces audible and electrical noise in fans, fluorescent lights, audio amplifiers, TV, Game consoles, Fax, and answering machines.
d) Prevents crashes in computers, weird print out, and glitches and noise in monitors.
e) Reliably powers the following devices that will normally not work with modified sine wave inverters:

•    Laser printers, photocopiers, magneto-optical hard drives
•    Certain laptop computers (you should check with your manufacturer)
•    Some fluorescent lights with electronic ballasts
•    Power tools employing "solid state" power or variable speed control
•    Some battery chargers for cordless tools
•    Some new furnaces and pellet stoves with microprocessor control
•    Digital clocks with radios
•    Sewing machines with speed/microprocessor control
•    X-10 home automation system
•    Medical equipment such as oxygen concentrators

A 3000 watt pure sine power inverter produceS cleaner power than a modified sine power inverter, and our line of pure sine models will cover all the complex electronics that are part of our everyday lives. A pure sine wave will replicate the kind of the power you get from utility grid, providing a wide range of benefits. This kind of clean power will allow electronics to run more efficiently than they might on modified sine wave DC to AC inverters.

Offering superior quality true sine wave output, the Prosine 1000 and 1800 stand-alone inverters are ideally suited for electrical systems that already have a quality multistage battery charger. Designed for recreational and industrial applications, their 120-volt, 60 Hz AC power output is capable of handling both heavy duty and smaller, multiple AC loads. Prosine inverters include a backlit LCD display panel, which can be mounted remotely.

Appliances with inductive loads, such as microwave ovens and motors, are more efficient when connected to a 12v power inverter for sale than when connected to a modified sine wave inverter. They run faster and quieter. They are less prone to Overheating, as well. With a pure sine wave inverter, you can make the most of appliances with inductive loads.

There are several ways to do this starting with 12 VDC. To me the simplest way is a push-pull audio amp driving a center tapped 12.6 volt to 240 volt transformer. The disadvantage of this is that the efficiency is only about 50% and a large 50 Hz transformer is required. To deliver 500 watts of AC 500 watts is dissipated in the t