Table of Contents
Advertisement
Page 16
Model 545A
Negative Pulse Performance Test.
With test equipment connected as shown in Figure 9, proceed as follows:
a.
Set power supply A to +S.OV; set power supply B to +S.OV.
b.
Set TTL-CMOS switch to TTL.
c.
Set pulse generator to output a negative-going pulse.
d.
Adjust pulse gneerator to give waveform at probe tip as shown in Figure 9, with a repetition rate of one-
pulse-per-second. Probe indicator should flash off once per second.
e.
Gradually increase power supply B voltage to +15.0V while observing probe indicator. There should be no
change in probe indicator response.
f.
Set TTL-CMOS switch to CMOS.
g.
Connect test equipment as shown in Figure 10.
h.
Set power supply A to +3.0V.
i.
Set pulse generator to output a negative-going pulse.
j.
Adjust pulse gneerator to give waveform at probe tip as shown in Figure 10 with a repetition rate of one-
pulse-per-second. Probe indicator should flash off once per second.
k.
Gradually increase power supply A voltage to +18.0V, adjusting the pulse generator output to track with
power supply A output. There should be no change in probe indicator response.
i.
Disconnect test equipment.
Advertisement
Table of Contents
