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  • Drok
    Keymaster
    February 22, 2019 at 8:26 am
    Post count: 2971
    in reply to: 200220 DC-DC Buck converter UART #35568

    Hello Omar Ahmad，

    Did you set a output voltage that higher than input?

    Here are some comment by Mitchel. It may help you.

    200220 DC-DC Buck converter UART

    Best regards.

    Drok
    Keymaster
    February 22, 2019 at 8:11 am
    Post count: 2971
    in reply to: Product Recommendation #35566

    Hello Burzin ,

    Thanks for writing in.

    Could you please tell us the voltage and current your device require? One item is buck converter, the other one is buck and boost converter.

    Best regards.

    Drok
    Keymaster
    February 22, 2019 at 7:43 am
    Post count: 2971
    in reply to: DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – #35563

    Hello  Donald J Steele,

    About your questions”I want to see how much dc power is coming from a charge controller”

    Our resposne is the same. Base on  the above wiring diagram, it is available to check the power come out from charge controller.  We wonder if  you think the power drawed by battery is different from that come out from charge controller.

    Best regards.

    Drok
    Keymaster
    February 21, 2019 at 7:32 am
    Post count: 2971
    in reply to: problem with 6V to 12V Step Up Converter, DROK DC 12V Boost Converter DC 5V-11V #35555

    Hello Chester Sams,

    Is it this item? 200111

    To check if converter is normal, is it convenient for you to test the converter independently?  Please check  output voltage when  load is not connected.

    Best regards.

     

    Drok
    Keymaster
    February 21, 2019 at 7:06 am
    Post count: 2971
    in reply to: DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – #35554

    Hello Donald J Steele,

    We are sorry it is hard to confirm the bottom and top of shunt you mention.

    If you want to measure the power from  controller to battery, please hook it up as below. Battery is that load. The order of connection can’t be changed.

    So far we only have AC meter for 2 phase circuit.

    Best regards.

    Drok
    Keymaster
    February 20, 2019 at 10:08 am
    Post count: 2971
    in reply to: 200220 DC-DC Buck converter UART #35549

    Hello Omar Ahmad，

    You may refer to this document. https://www.droking.com/cs/wp-content/uploads/2017/07/200220.docx

    Best regards.

    Drok
    Keymaster
    February 20, 2019 at 10:05 am
    Post count: 2971
    in reply to: Dc-dc unit, CC light. #35548

    Hello Dave Mitchell,

    Would you please tell us how did you set current before connecting battery? Did you set 1 A output current?

    You can use  a diode with three times as much as  charging voltage and two times as much as  charging current.

    Best regards.

     

     

    Drok
    Keymaster
    February 20, 2019 at 9:40 am
    Post count: 2971
    in reply to: DROK® Digital-Multimeter DC 6.5-100V 100A (100A / 75mV Shunt extern) – #35547

    Hello Donald J Steele,

    No matter the power come in or come out. Wiring is the same. The device that you want to monitor is that laod.

    200141 meter only measure one direction current.  please kindly refer to above wiring diagram.

    There is no way to show incoming voltages only. Please find more details about button from  this manual https://www.droking.com/cs/wp-content/uploads/2019/02/200141.pdf

    Best regards

    Drok
    Keymaster
    February 20, 2019 at 9:27 am
    Post count: 2971
    in reply to: How to connect the (D69-2049) to monitor the voltage and KWH to a NEMA-1450. #35545

    Olá Décio silva

    Você poderia nos informar qual item quer dizer e mais detalhes sobre suas perguntas?

    Cumprimentos.

    Drok
    Keymaster
    February 19, 2019 at 9:24 am
    Post count: 2971
    in reply to: Current zero calibration for 0-120V DC 0-100A Digital Multimeter #35533

    Hello Bart V,

    You may try zero clearing。

    1.Please move the red cursor to “NCP”,

    2. Keep pressing up button for 3 seconds. After that, there will be 3 options.

    3. Make the red cursor pointing to C-I, and press “OK” button. Then you will see “I=0”, at this time, please press up or down button to reset. （Please notice when in the reset process, it can’t be connected with any load）

    4. Press “OK” button again, you will see “I>0”(connect a 3A load). Then press up or down button to make the current value is in accord with 3A load. Press “Ok” button to save settings.

    Best regards。

    Drok
    Keymaster
    February 19, 2019 at 9:19 am
    Post count: 2971
    in reply to: Dc-dc unit, CC light. #35532

    Hello Ste,

    To check it more carefully, is it convenient for you to take a video to show how it is?

    And  regarding to current adjustment, we want to said it is not used to regulated actual output current.
    For most of converters, output current can’t be adjusted directly, which is decided by load mainly. The current adjustment here is for limited output current.
    For example, if you set 2A output, the max output will be 2A. When actual output current reach that level, cc light will be on. And it will limit output to 2A.
    Best regards.

    Drok
    Keymaster
    February 19, 2019 at 9:08 am
    Post count: 2971
    in reply to: Custom led driver #35531

    Hello Gregory G Griffes,

    Thanks for writing in.

    We don’t have such AC to DC converter. But there may be some DC to DC converter meet your requirement (12v to 17v ).

    Could you please tell us the output current range?

    Best regards.

     

    Drok
    Keymaster
    February 14, 2019 at 9:56 am
    Post count: 2971
    in reply to: Thank you comment #35512

    Hello Michael Tyborski,

    Thanks for your suggestion on our product. As  small and growing company, we  will never stop working to make improvement.

    If there are any more questions, please feel free to contact us.

    Best regards.

    Drok
    Keymaster
    February 14, 2019 at 9:52 am
    Post count: 2971
    in reply to: Recommended power supply for TDA7498E (110048) amplifier #35511

    Hello Jon,

    Thanks for writing in.

    We are sorry we don’t have power supply  for 110048. It is easy to find that.

    Working voltage can be 15~36VDC. If your speaker power is large, we recommend power supply is 32V, 8A or more.

    Any more questions, please kindly let us know.

    Best regards.

    Drok
    Keymaster
    February 14, 2019 at 9:45 am
    Post count: 2971
    in reply to: Dc-dc unit, CC light. #35510

    Hello Ste,

    Thanks for writing in.

    Could you pleaes tell us how large the input current  is and the preset output current ? Is the input power enough?

    Best regards.

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Viewing 15 posts - 1,171 through 1,185 (of 2,965 total)
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