I am using the U8002A. When the supply is not connected to my board, I can change the voltage freely throughout the entire voltage range. However, when I connect it to my board and hit the Voltage/Current button so that the "V" on the display blinks, I cannot lower the voltage. I can raise it fine, but not lower. Any idea what is going on?
Thanks,
Sue
Thanks,
Sue
Could you let us know what is your load type and the load’s impedance?
Is your measurement in constant-voltage (CV) or the constant-current (CC) mode?
ThongLin