Review of ZK-5JX 6.5-36V to 1.2-32V 5A 75W Step Down Converter with LCD

Project Video
Project Details

The module is explained fully. Setting voltage and currents is shown. All components and datasheet visited. Accuracy of the reading voltage is tested. The module is tested with 30V, 24V, 15V, 12V, 5V, 3.3V and 1.5V at different currents.
Lithium Battery charging is shown and ripple voltage of the output is measured on oscilloscope.

Code to turn ON or OFF

Please watch the video for full details and demonstration.
To turn ON send A0 01 01 A2
To turn OFF send A0 01 00 A1

Chapters of this video

  • 01:14 Introduction to ZK-J5X
  • 05:36 Components Explained
  • 09:06 Input and output voltage
  • 13:47 Display value accuracy
  • 15:57 Setting Current Limit
  • 18:12 Charging 1 cell Battery
  • 21:52 Charging more than 2 Cell battery
  • Test with Input voltage: 30V
  • 23:24 Output voltage 24V
  • 25:56 Output voltage 15V
  • 27:04 Output voltage 12V
  • 27:39 Output voltage 5V
  • 28:29 Add it heat sink
  • 28:47 Output voltage 3.3V
  • 29:50 Output voltage 1.5V
  • Test with Input voltage: 24V
  • 30:09 Output voltage 15V
  • 31:20 Output voltage 12V
  • 31:41 Output voltage 5V
  • 32:43 Output voltage 3.3V
  • Test with Input voltage: 15V
    33:07 Output voltage 12V
  • 33:49 Output voltage 5V
  • 34:06 Output voltage 3.3V
  • Test with Input voltage: 12V
  • 34:20 Output voltage 5V
  • 35:00 Output voltage 3.3V
  • 35:16 Test with Input voltage: 5V
  • 35:29 Measuring Output Ripple voltage
  • 36:51 Conclusion remarks
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