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  2. Power inverter - Wikipedia

    en.wikipedia.org/wiki/Power_inverter

    The result is a repeated voltage step sequence of zero, peak positive, zero, peak negative, and again zero. The resultant voltage waveform better approximates the shape of a sinusoidal voltage waveform than a single square wave. Most inexpensive consumer power inverters produce a modified sine wave rather than a pure sine wave.

  3. Better Business Bureau (BBB) complaints and accreditation ...

    www.aol.com/lifestyle/better-business-bureau-bbb...

    With a legacy of more than 100 years, the Better Business Bureau (BBB) is the go-to watchdog for evaluating businesses and charities. The nonprofit organization maintains a massive database of ...

  4. Consumers' Checkbook - Wikipedia

    en.wikipedia.org/wiki/Consumers'_Checkbook

    Consumers' Checkbook/Center for the Study of Services (doing business as Consumers’ CHECKBOOK) is an independent, nonprofit consumer organization.It was founded in 1974 [1] in order to provide survey information to consumers about vendors and service providers.

  5. Consumer Reports - Wikipedia

    en.wikipedia.org/wiki/Consumer_Reports

    Consumer Reports (CR), formerly Consumers Union (CU), is an American nonprofit consumer organization dedicated to independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy.

  6. Better Business Bureau - Wikipedia

    en.wikipedia.org/wiki/Better_Business_Bureau

    The Better Business Bureau (BBB) is an American private, 501(c)(6) nonprofit organization founded in 1912. BBB's self-described mission is to focus on advancing marketplace trust, [2] consisting of 92 independently incorporated local BBB organizations in the United States and Canada, coordinated under the International Association of Better Business Bureaus (IABBB) in Arlington, Virginia.

  7. Power electronics - Wikipedia

    en.wikipedia.org/wiki/Power_electronics

    An HVDC thyristor valve tower 16.8 m tall in a hall at Baltic Cable AB in Sweden A battery charger is an example of a piece of power electronics. A PCs power supply is an example of a piece of power electronics, whether inside or outside of the cabinet.

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