You are here:>>Drok
Drok 2019-01-29T03:10:28+00:00

Forum Replies Created

Viewing 15 posts - 1 through 15 (of 2,566 total)
1 2 … 172 Next
  • Author
    Posts
  • Drok
    Keymaster
    March 5, 2021 at 9:00 am
    Post count: 2572
    in reply to: Shipping #62534

    Hello Joe Golden,

    We have sent tracking number to your e-email. Please kindly check it.

    Best regards.

    Drok
    Keymaster
    March 3, 2021 at 8:54 am
    Post count: 2572
    in reply to: LM2596 DC Buck Volt Regulator – need instructions #62338

    Hello ian cummings，

    Would you please kindly offer the product link or SKU number so that we can confirm which item it is?

    No matter which converter it is, please set the output voltage and current for your battery firstly.

    Best regards,

    DROK

    Drok
    Keymaster
    March 3, 2021 at 8:51 am
    Post count: 2572
    in reply to: Buck Converter Step Down Voltage Regulator Charging Indicator #62337

    Hello,

    When actual load current decrease to 10% of preset current, “Charging” led will be off and “Fully” led is on.

    For example, preset current is 1A, if actual output  current  is lower than 0.1 A, “Fully” led is on.

    Best regards.

    Drok
    Keymaster
    March 2, 2021 at 8:33 am
    Post count: 2572
    in reply to: Buck Converter Step Down Voltage Regulator Charging Indicator #62208

    Hello Grant Yardley，

    We are not sure exactly how it is. Did you connect USB-C PD board to converter output or input?

    For charging battery, you can connect diode in series to converter output port, that can prevent backfeed current.

    Best regards.

     

     

    Drok
    Keymaster
    March 2, 2021 at 8:10 am
    Post count: 2572
    in reply to: Digital Meter DC 3.3~30V Signal Generator PWM No Serial Read Data (SKU:200382) #62207

    Hello,

    Are the serial parameters the same? For example, baud rate 9600, data bits 8, stop bits 1.

    Best regards.

    Drok
    Keymaster
    March 2, 2021 at 7:37 am
    Post count: 2572
    in reply to: Output voltage on 200150 boost converter drops as soon as I connect a load #62205

    Hello Blake Ward，

    Would you like to show us how it is by video?

    When actual output current reaches the preset value, the CC indicator is on. Constant current mode is actually a current limit feature.  Assume  preset current is 2A,  load will not draw more than 2A.

    If you don’t want to limit load current, just increasse preset  value.

    Notice: For  dead battery, charging current is high in the beginning, without current limit, it is easy to damage battery.

    If you prefer constant voltage charging, please check if it is appropriate method for your battery.

    Best regards.

    Drok
    Keymaster
    March 2, 2021 at 6:35 am
    Post count: 2572
    in reply to: manuals for your product #62196

    Hello Thomas Nickle,

    We are sorry  we don’t have schematic, factory doesn’t offer it.

    Best regards,

    DROK

    Drok
    Keymaster
    March 1, 2021 at 9:58 am
    Post count: 2572
    in reply to: Output voltage on 200150 boost converter drops as soon as I connect a load #62098

    Hello Blake Ward，

    Could you please tell us wheter it is in constant current now?

    Constant voltage and constant current can’t work in the meantime. When current regulator is enable, voltage regulator compoent is disable.  Only one mode is enable each time.  In general, we charge battery in constant current mode firstly, when battery voltage reaches preset charing voltage, it will enter constant voltage mode.

    For any more questins, please let us know.

    Best regards.

    Drok
    Keymaster
    March 1, 2021 at 3:58 am
    Post count: 2572
    in reply to: Buck converter 200310 UART levels #62061

    Hello Adam,

    It can only accept 3.3v level.

    Best regards.

    Drok
    Keymaster
    February 24, 2021 at 9:33 am
    Post count: 2572
    in reply to: DROK 090089 Boost Converter Help? #61555

    Hello Steven,

    Would you like to offer product link or SKU number so that we can confirm which item it is? And do you mean the item doesn’t power on?

    Best regards,

    DROK

    Drok
    Keymaster
    February 23, 2021 at 9:50 am
    Post count: 2572
    in reply to: Diagram #61448

    Hello john wright,

    Do you mean circuit diagram？ We are sorry factory doesn’t allow to show circuit diagram.

    Only wiring diagram is available.

    Best regards.

    Drok
    Keymaster
    February 23, 2021 at 9:50 am
    Post count: 2572
    in reply to: Shipping #61447

    Hello，

    We check order#13544 was shipped on Feb 22. ePacket: LZ682104690CN

    Due to something wrong, shipping method is changed to register mail, we are sorry for  that. Price difference will returned to original account, please check it later.

    Best regards.

    Drok
    Keymaster
    February 23, 2021 at 8:57 am
    Post count: 2572
    in reply to: I need a 36v motor driver. #61446

    Hello Arvindh,

    The item you found can’t drive  36v motor. For now there are no similar item.

    Best regards.

     

    Drok
    Keymaster
    February 22, 2021 at 9:10 am
    Post count: 2572
    in reply to: CAD File for 160W 2 Channel DC Motor Driver Module? #61349

    Hello,

    We are sorry we don’t have CAD file.  Here is cut-out size for your reference.

    Best regards.

    Drok
    Keymaster
    February 22, 2021 at 9:09 am
    Post count: 2572
    in reply to: Drox 300043 malfunction? #61348

    Hello ，

    Is the output voltage 10v when no device is connected?

    If voltage is over 5.6v, decimal point will flicker. Is your like this?

    Best regards,

    DROK

  • Author
    Posts
Viewing 15 posts - 1 through 15 (of 2,566 total)
1 2 … 172 Next