DCDC Validation

Owned by Jenna Kong
Last updated: Jul 27, 2023
1 min read

27-06-2023

  • mosfet gate and drain/source is not shorted

  • r8 is replaced with 10kohm resistor

30-06-2023

  • Testing the DCDC output with the replaced resistor (R8)

Test 1: Replaced resistor

  • CC (Load): 0.100A

  • Voltage (PSU): 60-100V

  • Power consumption: ~1.060W

  • Results:

    • no resistance across TR and HV GND

    • outputting ~10.6-10.8 volts from the range

Test 2: Removed R10

  • no resistance from TR to HV GND

  • Voltage output is slightly higher, around 10.7V at 60V input

Test 3: Replaced Q2

  • Same conditions: input voltage 60V

  • Same output voltage: ~10.7V

  • Suspected leg 2 of Q2 is not properly connected

    • when checking conductivity leg 1 & 3 were good