The DCDC itself is nothing we haven’t seen before, but the construction of this thing is amazing. The entire build is on the NoPlated ProtoBoard, meaning there are no wires at all.
This converter based on MP2307. This device integrates 100mOHM MOSFETS that provide3Aof continuous load current over a wide operating input voltage of 4.75V to 23V. I used a 12V DC dapter as input in this converter. So the output can be adjusted from 1.2V to 10V by a 10Mohm potentiometer. One voltage meter is fixed for real time voltag display. It is a good tool in electronic DIY. Now, please follow my step to starting your DIY.
More infor here:
Step 1: You will need
- soldering iron
- small screwdriver
- 1pcs x ElecFreaks non-plated Flower protoboard
- 1pcs x HP LED
- 1pcs x mini voltage meter
- 1pcs x 10Mohm potentiometer
- 1pcs x MP2307
- 1pcs x DC J3 adapter
- some capacities and some capacities ( please refer to the schematic for more details)
Step 2: Soldering the MP2307
Step 3: Fixed DC connectorï¼J3ï¼
Step 4: Wiring on double side use solder
Refer the diagram to wire on double side. Please note that the red line indicatet top layer traceï¼and blue line indicate bottom layer trace.
As the following picture shown, move the soldering copper in horizont direction to disconnect two padsï¼and move in vertical to connect. Please measure whether the trace is conduction when you complete it every time. It will increase your success rate.
Step 5: Making via on Flower protoboard, connect top and bottom pad.
You must fast enough to solder bottom layerï¼otherwise you may dissolve top layer solder.
Step 6: Making your connector solder more reliable.
It has more solder area than primary Flower pad. Larger soldered dot have more soldering intensity.
Step 7: Fixed voltmeter
The red line connect to output anode, and the black connect to cathode.
Step 8: Power and debugging
Finallyï¼ confirm the input and output poles is no short circuit. Power on the converter then rotate the potentiometerï¼you can adjust the output voltage, and the voltage display on voltmeter.
I use this DCDC converter to power a 5W HB LED over 30 hours. As the tested result, it works stable and reliable.
Thant’s All. Thanks and Enjoy !!