Operating Principals

pro1200to3000w.qxp 4/30/2010 8:55 AM Page 23

OPERATION

For You Technical Types.

1. Basic Operating Principles:

Whistler inverters work in two stages. During the first stage, the DC to DC converter increases the DC input voltage from the power source (e.g. a 12 volt battery) to 145 volts DC. In the second stage, the high voltage DC is converted to 110 volts (60 Hz AC) using advanced power MOSFET transistors in a full bridge configuration. The result is excellent overload capability and the capacity to operate difficult reactive loads. The output waveform resulting from these conversions is a "quasi-sine wave" or a "modified sine wave" as shown on below.

This stepped waveform is similar to the power generated by utilities and has a broad range of applications.

The modified sine wave produced by the Inverter

The modified sine wave produced by your Whistler inverter has a root mean square (RMS) voltage of 110 volts. The majority of AC voltmeters measure RMS voltage and assume that the measured waveform will be a pure sine wave.

Consequently, these meters will not read the RMS modified sine wave voltage correctly and, when measuring your Whistler inverter output, the meters will read about 20 to 30 volts too low. To accurately measure the output voltage of your inverter, use a true RMS reading voltmeter such as a Fluke 87, Fluke 8060A, Beckman 4410, Triplett 4200 or any multimeter identified as "True RMS."

For more information on inverters see our Inverter FAQ page at www.whistlergroup.com

A true sine wave typical of home AC outlet.

PRO-3000W, PRO-2500W, PRO-1600W, PRO-2000W, PRO-1200W specifications

The Whistler PRO series, comprising models PRO-1200W, PRO-1600W, PRO-2000W, PRO-2500W, and PRO-3000W, stands out as a versatile lineup of power inverters designed to meet diverse energy needs. These inverters are engineered for performance, reliability, and efficiency, making them ideal for various applications, including off-grid situations, emergency power supply, and recreational use.

The Whistler PRO-1200W model is perfect for users who need moderate power capacity. It boasts a peak power output of 2400 watts, accommodating a variety of household devices such as small appliances and electronics. The device features easy-to-read LED indicators, a durable design, and built-in protections against overload, overvoltage, and thermal shutdown.

Next in line, the PRO-1600W model offers a robust power solution, making it suitable for slightly higher energy demands. With a peak output of 3200 watts, it seamlessly powers equipment such as power tools and larger appliances. This model integrates a user-friendly interface with additional USB ports, allowing seamless charging of mobile devices. Its advanced cooling system ensures efficient operation under heavy loads.

For those requiring a more significant power output, the PRO-2000W inverter is a perfect choice. This model delivers up to 4000 watts of peak power, making it an ideal companion for RV enthusiasts and those seeking backup energy solutions. It is equipped with an innovative waveform technology that provides a clean and stable power output, ensuring sensitive electronics operate without interruptions.

The PRO-2500W model takes it a step further, offering expanded capabilities for heavy-duty uses. With peak output capabilities reaching 5000 watts, it’s ideal for powering tools and appliances on job sites. This inverter is designed with robust safety features, ensuring that users can operate their devices with peace of mind.

Finally, the PRO-3000W tops the series, providing an exceptional peak power output of 6000 watts. Designed for those with substantial energy needs, this inverter supports extended off-grid living and backup power for larger homes. It incorporates intelligent technology that optimizes efficiency and extends the lifespan of both the inverter and connected devices.

In summary, the Whistler PRO series inverters are a testament to quality and thoughtful engineering. They combine high wattage, user-friendly interfaces, and essential safety features to cater to the power demands of any user, from casual adventurers to serious off-grid enthusiasts. These inverters make it easier than ever to access reliable power anytime, anywhere.