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Do you have the ability to RoadTest Power Integrations TinySwitch-5 RDK-1016?

cstanton

We're looking for a few members to RoadTest a product from power integrations.

Now, this is more of a 'reference design' than a 'demonstration kit', but we often receive requests from suppliers that are like this.

The product is:

image

26.5 W dual output isolated flyback power supply for appliances using TinySwitch-5 (TNY5073K)

Information and datasheets are available at: https://www.power.com/design-support/design-kits/rdk-1016-reference-design-kit 

With details about TinySwitch-5 at: https://www.power.com/products/tinyswitch/tinyswitch-5

We would likely be looking for a RoadTester that can put it through its paces and characteristics rather than plugging it in and saying "it works". This means we may deviate from our usual RoadTest of 'sign up and you may be selected' and instead go down the path of 'ok, two or three of you are selected and we'll see if we can also provide you with some parts that you need'. (We tend to call these RoadTest Plus or Special RoadTests).

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  • Where is the EMI filter on the board. Why does the board has inductor on the primary side.

    The board doesn't have proper emi filter. I usually use board with proper common mode choke filter at the primary side. These board looks very risky to me.

    never seen common mode choke designed as inductor.

  • in reply to manojroy123
    manojroy123 said:
    I usually use board with proper common mode choke filter at the primary side.

    It's their "feature" to reduce component count. I'd say that suggests they're controlling the switching waveform with respect to frequency to spread the noise out so as to (potentially) remain below limits.

    manojroy123 said:
    never seen common mode choke designed as inductor.

    Seems to be a pi-filter to limit the amount of noise injected back to the mains and smooth out the DC. That being said, as far as I can tell from their test reports, the board isn't officially agency approved, but I'd have to say that PI very likely know their stuff and the EMC pre-qualification they've done in their report shows it has a decent chance of passing conducted emissions depending which limit line is used ...

    - Gough

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  • in reply to manojroy123
    manojroy123 said:
    I usually use board with proper common mode choke filter at the primary side.

    It's their "feature" to reduce component count. I'd say that suggests they're controlling the switching waveform with respect to frequency to spread the noise out so as to (potentially) remain below limits.

    manojroy123 said:
    never seen common mode choke designed as inductor.

    Seems to be a pi-filter to limit the amount of noise injected back to the mains and smooth out the DC. That being said, as far as I can tell from their test reports, the board isn't officially agency approved, but I'd have to say that PI very likely know their stuff and the EMC pre-qualification they've done in their report shows it has a decent chance of passing conducted emissions depending which limit line is used ...

    - Gough

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