Prior to connecting the DC input source, set the
current limit of the input supply to 0.1-A maximum. Ensure the input source is
initially set to 0 V and connected to the VIN+ and VIN– connection points as
shown in Figure 4-1.
Connect voltmeter 1 at VIN+ and VIN– sense
terminals (adjacent to J1) to measure the input voltage.
Connect ammeter 1 to measure the input current
and set it to at least a 0.1-second aperture
time.