This variable power supply only provide voltage and current draw according to the load. Design for lab usage for testing circuit!

• Input Power: AC 110V/220V, Switch selectable

• Output Power: DC 0 - 30V, 0 - 5A per channel or DC 0 - 60V connected two channels in series

• Constant Voltage Operation

  • Line regulation: CV=<0.01%+3mV; CC=<0.2%+3mA
  • Load regulation: CV=<0.01%+3mV(rating current =< 3A), CC=<0.2%+3mA (tating current=<3A )
  • Load regulation: CV=<0.02%+5mV(rating current >3A), CC=< 0.2%+5mA (tating current>3A )
  • Recovery time =< 100 uS
  • Ripple & noises: CV =< 3mV rms
  • Temperature coefficient =< 300ppm/'C
  • Constant Current Operation
  • Output current range: 0A~ 5A rating current continuously adjustable (pending on the load)

• Constant Current Operation

  • Line regulation: CC =< 0.2%+3mA
  • Load regulation: CC =< 0.2%+3mA
  • Ripple & noise: CC =< 3mA rms
• Tracking Operation
  • Parallel operation:
    • Line regulation =< 0.01%+3mV;
    • Load regulation =<0.01%+3mV(rating current =< 3A);
    • =< 0.02%+5mV(rating current3A)
  • Series operation:
    • Line regulation =< 0.01%+5mV;
    • Load regulation =< 300mV
  • Positive and Negative supply:
    • Slave tracking error =< 0.5%+10mV of the master (No load; if load, please add load regulation =< 300mV)
• Meter
  • Voltage display: 3 Digits LED display; Accuracy: ( +/- 0.5% of rdg +2 digits)
  • Current display: 3 Digits LED display: Accuracy: ( +/- 1% of rdg +2 digits)
• Fixed 5V/3A Output Specifications
  • Voltage accuracy: 5V +/- 0.25V
  • Output current: 3A
  • Regulation: Line regulation =< 5mV, Load regulation =< 15mV
  • Ripple & Noise =< 2mV rms
  • Protection: current limit and short circuit protection. Operation Temperature & Humidity 0C to 40C @ <80%
  • Operating hour: <8 hours @full load

Applications:

• This DC Power supply can be used as a charger to test the following:

  • Li-Ion battery pack up to 1 - 7 cells in series ( 25.9V max. ) per Channel (strongly recommend to have pcb or pcm install in the pack before charging).

  • LiFePO4 battery pack up to 1 - 8 cells in series ( 25.6V max. ) per Channel. (strongly recommend to have pcb or pcm install in the pack before charging).

• To charge a Li-Ion pack safely:

  • Must set up constant voltage correctly, e.g Charging Voltage = 4.2V x Number of Li-Ion Cell in series, or 3.65V x Number of LFP Cell in series

  • Must set up constant current equal or less than specified charging current per cell

  • Too high charging voltage may cause Li-Ion battery explode

Front Panel with 5V Fixed 3A port (2 right most port)