User`s guide

7-20 Agilent 4155C/4156C User’s Guide Vol.2, Edition 6
Measurement Units and Functions
Measurement Units
PGU - Pulse Generator Unit
Two PGUs (pulse generator units) are available, which are in the 41501A/B
Expander. Each PGU provides a pulsed output, and can also function as a dc source.
Figure 7-8 shows a simplified PGU circuit diagram.
Figure 7-8 Simplified PGU Circuit Diagram
When you use two PGUs, the outputs are always synchronized with each other. The
PGUs cannot be synchronized with the other measurement units.
The following describe each pulse parameter. For more details, open Help screen, or
refer to Setup Screen Reference manual.
Pulse Base and Peak
Table 7-14 shows the peak and base setting ranges and resolutions. PGU output
value is defined to be the value that is output if the PGU output terminal is open.
Table 7-14 PGU Setting Ranges and Resolutions
Range
Peak Setting
Value
a
a. Maximum peak-to-peak voltage is 40 V.
Base Setting
Value
Resolution
Maximum
Current
b
b. If pulse width ≤ 1 ms, pulse duty is ≤ 50 %, and average current output is
≤ ±100 mA, the peak current output can be up to ±200 mA.
20 V 0 ≤ |V| ≤ 20 V 0 ≤ |V| ≤ 20 V 4 mV ±100 mA
40 V 0 ≤ |V| ≤ 40 V 0 ≤ |V| ≤ 40 V 8 mV ±100 mA