• FAQ #12

    Is it possible to also measure the audio susceptibility (Vout/Vin) of a power supply with the current injector J2111A?  Yes.  The J2111A is a small…

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  • FAQ #11

    Are all of these devices compatible with our Hewlett Packard 4194A Impedance / Gain-Phase Analyzer?  Yes.  The Agilent (HP) analyzer will work well with our…

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  • FAQ #10

    What are the main differences between J2100A injection transformer, J2110A solid state injector and the J2111A current injector? The J2110A is a solid state voltage injector,…

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  • FAQ #9

    My Bode plot doesn’t look right, what am I doing wrong? The most common error made when measuring Bode plots is that the signal…

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  • FAQ #8

    Why do I have to calibrate my measurements?  Isn’t the equipment calibrated? Yes the devices are calibrated, however for accurate results you still need…

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  • FAQ #7

    How do I choose between the J2100A, J2101A and J2110A? If you plan to measure PFC’s, then the J2100A is a good choice, whereas…

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  • FAQ #6

    Why do I need the J2111A if I already have an electronic load? The J2111A is not the same as an electronic load.  In…

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  • FAQ #5

    How do I get a Bode plot with the J2111A? It is not possible to get a Bode plot using this method, only the…

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  • FAQ #4

    Does the J2120A Line Injector work with negative supplies No.  The J2120A is only for positive supplies and we do not currently offer a…

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  • FAQ #3

    What is so special about an injection transformer and why should I buy one, it is pretty expensive? A good injection transformer has high…

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  • FAQ #2

    I see that with the J2111A can perform the “non-invasive stability” measurement. I don’t understand what we can take away about stability from this…

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  • FAQ #1

    I would like to measure output impedance using the J2111A Current Injector, but the 25mA offset is way above my typical operating current. Why…

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