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in reply to: Inaccurate voltage reading #7246
Hello Derek,
Thank you for writing in.
Could you please send us some images of your wiring to let us check the problem details?
With your help, we can find a solution more quickly.
You can send this information to us by email (service at droking dot com).
Looking forward to hearing from you.
Best regardsin reply to: DROK TDA 2×10 W amp questions #7244Hello Carsten,
Thank you for writing in.
Since there are many products with similar product titles, it is hard for us to ensure the product you are referring to.
Could you please tell us your order ID or the link of the product?
With your help, we can find a solution more quickly.
Waiting for your reply.
Best regardsin reply to: wire diagram #7231Hello Mike Lloyd,
Thank you for writing in.
Is the output of the alternator of your alternator DC current?
Waiting for your reply.
Best regardsin reply to: D85 Digital Meter #7228Hello BROCK,
Thank you for writing in.
Could you please tell us your order ID or the link of the product?
With your help, we can ensure the product you are referring to.
Waiting for your reply.
Best regardsin reply to: Buck Converter 3.5-30V to 0.8-29V 10A problems #7227Hello acc,
Thank you for writing in.
Could you please send us some images of your wiring to let us check the problem details?
You can send the images to us by email(service at droking dot com ).
With your help, we can find a solution more quickly.
Best regardsin reply to: Solar to Brushless Pump Regulator #7225Hello David Murray,
Thank you for writing in.
Here are two recommendations to you:
#090398
DROK® LM2587 Auto Step Up Down Converter 24W 2A Boost Buck Module DC 3-35V to 1.2-30V Solar Energy Power Supply Charging Board Battery Voltage Regulator
Feature:
Module Properties: non-isolated buck-boost module
Input voltage: DC 3-35V
Output voltage: DC 1.25-30V (adjustable)
Output Current: 2A (when 9-35V input and 12V output, if 5V output can achieve 3A)
Input Current: 3.5A (MAX)
Output power: natural cooling 18W (input voltage greater than 10V), if install heat sink can achieve 24W
Output ripple: 20M bandwidth (for reference)
Input 10-14V, output 12V 0.2A, ripple 50mV
Operating Temperature: Industrial (-40°c to +85°c) (if ambient temperature exceeds 40 degrees, lower power use, or to enhance heat dissipation)
Full load temperature rise: 45°c
No-load current: Typical 10mA (10-14V switch 12V)
Load regulation: +/-1%
Voltage regulation: +/-0.5%
Dynamic response speed: 5% 200uS
Short circuit protection: Yes (10 seconds)
Input Reverse Polarity Protection: None (Please Series diode at the input port.)
Installation: can screw (diameter 3 mm), 2 fixing holes
Connection: Welding, can be directly soldered to a PCBApplications:
Battery voltage regulator, 12V battery (10-14V) can output voltage at 12V, 24V battery output voltage at 24V.
Solar charging regulator, it can stabilize voltage fluctuations in solar cells, and can give the battery charge, battery to avoid overshoot.
In order to power your electronic devices, designed for wide voltage range.#090638
DROK® DC-DC Buck Boost Converter 5V-25V to 0.5-25V 2A High Efficiency Voltage Regulator 5V 12V Variable Volt Power Supply Stabilizers with Green LED Voltmeter for Car Battery Fan
Product parameters:
Input voltage: DC 5.0-25V
Output voltage: DC 0.5V-25V (adjustable)
Continuous Output Current: 2A (max)
Continuous Input Current: 2A (max)
Input / Output Power: 25W (max)
Display color: green
Dimensions: 47 * 41 * 16mm (L * W * H)Features:
Input and output voltage can display alternately
The starting state can be set freely.
On the right side is a momentary switch that is for turning the output on and off, you don’t have to disconnect it to turn off whatever you have connected, it is more convenient to control the output.
This module have the big power MOS to protect the circuit in case of connecting reversely, which can improve the efficiency and reliability.Working Mode:
Input voltage mode: default display input voltage, display as “.”, LED indicator ON, the output is off.
Output voltage mode: Press S1 switch to output voltage mode, display “.”, LED indicator off, if turn off the output, display “OFF”.
Alternate mode: Press S1 key again, display input/output voltage alternately in 3 seconds, press S1 again switch to “input voltage mode”.Memory Mode:
Long press S1key for 3 seconds, the module automatically remembers the current work status as the default power-on state.
[0]means boot default display input voltage
[1]means boot default display output voltage
[2]means boot default display input/output voltage alternatelyHope this can help you.
Best regardsin reply to: Which regulator is needed? #7216Hello Jimmie Rico,
As your description, your problem is caused by that the solar system cannot provide enough power to drive the load, which makes the the load can only get 9.4V.
A regulator cannot step up the power of the solar system.
Could you please try to use another solar system with larger power to test if it can drive the load?
Hope this can help you.
Best regardsin reply to: Extend Cable and OLED display warranty #7214Hello Chuck,
Thank you for your reply.
Could yo please tell us more details of your operation, such as the wiring, the working environment?
If you can, we sincerely hope that you can send us some images to let us check the problem details.
You can send this information to us by email(service at droking dot com).
Looking forward to hearing from you.
Best regardsHello john R.,
Thank you for writing in.
Yes, your thought is right.
Motor forward: place DIR-1 to high voltage signal(1) and supply PWM-1 with PWM signal.
Motor reversal: place DIR-1 to low voltage signal(0).
Parking brake: place a low on PWM.
If you use 2 motors, you can setup DIR-2 and PWM-2.
Hope this can help you.
Best regardsin reply to: Audio converter #7206Hello Jack Hassler,
Thank you for writing in.
Here is a recommendation for you:
DROK® Micro PCM2707 DAC USB Decoder Board Sound Card, 90DB Digital to Analog Audio Codec for Android Phone, Voice Announcement System DIYFeatures:
The product adopts HIFI level PCM2707 USB decoding chip, has high stable performance and compact design. Support Android, PC and tablet, no need for driver. Only need standard Android data cable to connect PC(recommended PC is FOOBAR2000). The outer heat shrinkable tube prevents static electricity.
DAC: PCM2707
Signal Noise Ratio(SNR): 90 dB, little background noise
Output Coupling: 2pcs AVX C/D type tantalum capacitors
Size: 3cm*2cm
Weight: 2gAttached OTG Cable Description:
The Android micro USB OTG cable supports phones with OTG function to charge other phones and exchange data, has high practicability and functionality. Current flows from silver terminal to gold terminal(insert silver terminal to phone with OTG function and enough power, gold terminal to phone which needs to get charged).
If your phone has OTG function and connects to other device without OTG function via the OTG cable, your phone will charge the device first; and if the device has memory, your phone will take it as a removable storage medium and read its memory.
Read the connected device’s memory: After connection, “USB storage device is in use” will be shown on your phone’s screen; clicking the new hardware found on drop-down menu will enter into file management. The files in connected device will also be shown on your phone, you can listen music, watch video, exchange data or pictures, etc.
Disconnect the OTG connection safely: open your phone’s setting and find the “storage”, SD card and OTG USB disk will be shown there. Choosing “uninstall SD card” under OTG USB disk will uninstall the OTG device safely.Hope this can help you.
Best regardsin reply to: DC-DC 6~35V 1.0~35V Boost Buck Converter #7204Hello Jeremy,
Thank you for your continued patience in this regard.
We will reflect this issue to our technicians.
Have a nice day!
Best regardsin reply to: Extend Cable and OLED display warranty #7203Hello Chuck,
Thank you for writing in.
Could you please tell us your order ID or the link of the product so that we can ensure the product you are referring to?
With your help, we can find a solution more quickly.
Best regardsin reply to: From 6v to 12v DC? #7193Hello Bill Marsh,
Thank you for your efforts throughout.
So sorry that we cannot find a boost converter can support 20A.
Beg your understanding.
Best regardsin reply to: No output voltage without ac input #7190Hello Owen Parsons,
Thank you for writing in.
So sorry that we cannot ensure which product you are referring to.
Could you please tell us your order ID or the link of the product?
It is better that you can tell us more details of your operation, such as the input voltage/current, the load, the wiring, the working environment.
If you can, we sincerely hope that you can send some images to let us check the problem details.
With your help, we can find a solution more quickly.
You can send the information to us by email(service at droking dot com).
Looking forward to hearing from you.
Best regardsHello Tom,
For the #200151, there are four screws attached on the board.
For the #200088, so sorry that we do not have screws providing for you, but you can use to fix it.
Please note that the bottom of the board(#200088) need to be insulated.
Here the PDF files are the datasheet of the products:
DATASHEET_200151
DATASHEET_200088
Hope this can help you.
Best regards -
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