Tecternity
New member
- Joined
- Jun 13, 2019
- Messages
- 5
- Points
- 3
Hey,
I'm having a problem with my Astral SuperDrive and a NUBM08 Diode. I ordered the driver on ebay from barnett_unlimeted. And the Diode from Techhood.
I want to drive the NUBM08 Diode
But I can't get the output current above 1600mA (1.6A). When I turn to potentiometer I can reduce the current. But can't increase it above 1600mA. My input voltage is 8.20V (2x Sanyo 18650 Charged to 4.10V each in series and also tested with Sony VTC4) I measure the output voltage of 6V from the driver. The stated maximum operating voltage of the diode is 4.9v.
I placed a heatsink with a thermal pad on the ic side of the driver as recommended. I had the current meter wired up all the time and the current was never above 1.6A. Also it's strange, that the voltage on the diode is 6 volts. I also tested with a second driver (I ordered two) with same results.
I tested the NUBM08 Diode with my lab bench power supply but at 800mA the Diode draws its maximum Operating voltage 4.9v and above 800mA it exceeds it's maximum Vop. is there something wrong with its forward Voltage ? I really don't have enough experience to say what the problem is.
If there is something important that I didn't mention just ask. Thanks for taking your time to read this. I hope someone could help me.
I'm having a problem with my Astral SuperDrive and a NUBM08 Diode. I ordered the driver on ebay from barnett_unlimeted. And the Diode from Techhood.
I want to drive the NUBM08 Diode
But I can't get the output current above 1600mA (1.6A). When I turn to potentiometer I can reduce the current. But can't increase it above 1600mA. My input voltage is 8.20V (2x Sanyo 18650 Charged to 4.10V each in series and also tested with Sony VTC4) I measure the output voltage of 6V from the driver. The stated maximum operating voltage of the diode is 4.9v.
I placed a heatsink with a thermal pad on the ic side of the driver as recommended. I had the current meter wired up all the time and the current was never above 1.6A. Also it's strange, that the voltage on the diode is 6 volts. I also tested with a second driver (I ordered two) with same results.
I tested the NUBM08 Diode with my lab bench power supply but at 800mA the Diode draws its maximum Operating voltage 4.9v and above 800mA it exceeds it's maximum Vop. is there something wrong with its forward Voltage ? I really don't have enough experience to say what the problem is.
If there is something important that I didn't mention just ask. Thanks for taking your time to read this. I hope someone could help me.