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Thread: Inverter vs. DC/DC converter

  1. #1 Inverter vs. DC/DC converter 
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    In majority of hybrid vehicles high power inverters are used to power AC motors.
    How inverters compare to DC/DC converters in terms of price,size,weight,efficiency and reliability?


    Antislavery
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  3. #2  
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    A DC to DC converter IS an inverter powering a step up (or down) transformer, rectifier, and filter. All things depend on the quality of the components used by various manufacturers.


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  4. #3  
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    Quote Originally Posted by thinkatron View Post
    A DC to DC converter IS an inverter powering a step up (or down) transformer, rectifier, and filter. All things depend on the quality of the components used by various manufacturers.
    I take it to understand, the DC originates with battery(ies), is converted to AC, which is then transformed voltage-wise, then rectified back to DC? As you stated, DC to DC does not allow use of a transformer, which depends on continuously changing voltage to provide an output.

    Am I misunderstanding something here?

    jocular
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  5. #4  
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    Quote Originally Posted by jocular View Post
    Quote Originally Posted by thinkatron View Post
    A DC to DC converter IS an inverter powering a step up (or down) transformer, rectifier, and filter. All things depend on the quality of the components used by various manufacturers.
    I take it to understand, the DC originates with battery(ies), is converted to AC, which is then transformed voltage-wise, then rectified back to DC? As you stated, DC to DC does not allow use of a transformer, which depends on continuously changing voltage to provide an output.

    Am I misunderstanding something here?

    jocular
    You have it basically right.

    An inverter goes from DC to AC (often, but not always, sinusoidal), while a DC to DC converter doesn't seek a specific shape for the intermediate time-varying waveforms, other than to produce maximum efficiency (or whatever the objective may be).
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