Testing DP30V5A-L DC-DC Converter From ICStation.com

Testing DP30V5A-L DC-DC Converter From ICStation.com

Tested by ICStation Outstanding Partner Hugatry's HackVlog:

 More details in below Youtube video:
https://www.youtube.com/watch?v=vn0F5sPWpPM

Product link:
http://www.icstation.com/dp30v5a-display-converter-constant-voltagecurrent-step-down-buck-power-module-p-8421.html

I. Technical parameters:

1. Input voltage range:  6-40.00V           

2. Output voltage range:  1V-32.00V

3. Output current: 0-5.100A

4. Output power range: 0-160W    

5. Product Weight: 66g

6. Product Dimension: 85*58*31(mm) (L*W*H)

7. Output voltage resolution: 0.01V

8. Output current resolution: 0.001A

9. Output Voltage accuracy: ± (0.5% + 1 digits)

10. Output Current accuracy: ± (1% + 3 digits)

11. Ripple Wave (full load 40v to 32V/5A): about 100 mV VPP

12. Note: On the status of output, the Input must be 1 V higher than the output. Please strengthen the heat dissipation when working with big current.

II. Operating Instructions:

1.  Open or close output: press ON/OFF button one time to open or close output in any state; press again, output will be closed or open, followed by recycling. When closed output, the LED display will show “OFF”

2.  Set output voltage and current: Press SET shortly, the led display will be blinking. You can press the two buttons (+ key and - key) on the tube left to increase or decrease the value. Press SET key shortly again to switch 0.01V to 0.1V to 1V to 0.01A to 0.1A to 1A to exist adjustment, followed by recycling. At the corresponding value place, you can press the two buttons (+ key and - key) to increase or decrease the value. if you don’t press the set key, the set mode will be automatically exited after 6s and the current set value will be automatically stored.

3.  Switch input and output display: At no output state, press the two buttons on the tube left (IN key and OUT key) to switch the tube display between the current input voltage and the current output voltage. When show input voltage, “IN” LED lights; when show output voltage, “OUT” LED lights. 

4.  CC and CV indication: When the module is in the state of constant voltage (CV) or constant current (CC), the CC or CV led will lights correspond to show CV or CC state.

5.  Output current zero calibration: In the no-load state, Keep pressing SET key to power on, when the led display flashed, the calibration is done. Then you can loosen the SET key.

6.  Store set value automatically: in operation process, the led display state, output current and output voltage setting value and output state are automatically stored. When power on next time, the default work state is the stored state.

The Introduction of LM2596 Step Down Power Module DC-DC Converter

Features
 
1.With voltage meter display;voltage meter error of ±0.1V;the range among 0~40V. (note: to ensure the voltage meter accuracy, please make sure that the input voltage is 4.2V or more).
2.Voltage meter can be closed by long pressing button(minimum power loss).
3.The range of input voltage is 4.2~40V and output voltage is1.25V~37V ,which are continuously adjustable.(The input voltage must 1V higher than output voltage)
4.Maximum output current can be as high as 3A,but normal and stable working current is2A.
5.Use 150KHZ internal oscillation frequency,which is belong to the second generation of switch voltage regulator with low consumption and high efficiency.
Where to use:
1.experiment teaching
2.temporarily set up power supply in the outdoor
3.car(audio, electric fan)power supply
What is special:
LM2596 Step Down Power Module design based on XL2596 as main control chip,attached digital tube to display voltage at that time to highlight smart function. What’more, schottky diode provides protection of reverse connection.
What components and tools do you need to do the test: Copper Wire Copper Cylinder Nut Pin Header Screw Driver Power Connector

Function Introduction

Diagram

Testing Results:Input voltage 4.5V

Because the starting voltage is 4.2V, when testing you should set the input voltage 4.5V and the output voltage 1.4V. ICStation Team test it on the digital oscilloscope and the result shows that the actual testing of the product is in accordance with the description.

Testing Results:Input voltage 30V

Because the maximum voltage is 33V,when testing you should set the input voltage 30V and the output voltage 28.6V.The actual measured data is lower than set data of around 0.6V.This may be caused by the output voltage is close to the input voltage or poor power supply accuracy.

In general, the performance of LM2596 Step Down Power Module is very good.You had better set the output voltage 3~4V lower than the input voltage, then the testing results will be more stable.