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THVD8000: Question about connection of THVD8000

Part Number: THVD8000

Hi Team,

I have 2 questions about THVD8000.

could you support following?

1. Is it possible to connect like star connection?

2. Is it possible to have pulse trans for long distance transmissions?

best regards,

Takuya

  • Takuya,

    It all depends on the application, like the data rate and distance. If baud rate is low, it's possible for THVD8000 work with a star network. Because the bid width is long for a low data rate, the signal has time to settle after bouncing back and forth within the network. 

    I'm not sure what you meant by pulse transmission. If data rate is low, the resistive loss of cable limits the communication distance. If data rate is high, the loss is mainly from capacitive load. In the THVD8000 design guide, table 2 has some lab data.

  • thank you for your support.

    I meant pulse transformer like LAN.

    Customer concern about stability.

    best regards,
    Takuya

  • Takuya,

    Just checking on this, was your question answered or do you need more infromation?

    Regards,

    Eric Hackett 

  • Hi Erick,

    thank you for your confirmation.

    i need more information about second question.

    best regards,

    Takuya

  • Takuya,

    I'm not very familiar with the pulse transformer. My understanding is that it's kind of transformer but used to transfer signal. I don't see the reason why the pulse transformer cannot be used in the bus. But I'm not sure how the power is transferred. Is the power coupled by the (power) transformer?

    In general the THVD8000 system is like a RS-485 system. The loss mainly comes from the cable loss. Can you elaborate more on the stability? Are you concerned about the signal's quality due to the star network?