Keithley 2302 Instruction Manual page 28

1-6 Getting Started
NOTE
A simplified diagram of the power supply is shown in
the output voltage (V
Current Readback Range: The Model 2306 has two ranges for current readback: 5A and
5mA. On the 5A range display resolution is 100μA, and on the 5mA range resolution is 0.1μA.
The power supply also has a digital voltmeter (DVM) that is independent of the power supply
circuit. The DVM can measure up to +30V (1mV resolution).
When used with a pulsed load, the power supply can read back peak current, idle current, and
average current. See Section 3 for details. A long integration (up to 60 seconds) function is
provided to measure average current of a low frequency pulse (long period) or a series of pulses.
See Section 4 for details.
Figure 1-3
Simplified power supply diagram
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When using the power supply as a sink (negative polarity), the power supply is dissi-
pating rather than sourcing power (see "Sink Operation" in Section 2).
) and current (I
meter
Battery Channel
(Channel #1)
I meter
V-Source
Source
with I-Limit
Digital
DVM
Voltmeter
Figure
). Display resolution for voltage readback is 1mV.
meter
+
V meter
Source
_
+
DVM
_
1-3. Note that it can read back
Charger Channel
(Channel #2)
I meter
V-Source
V meter
with I-Limit
Digital
Voltmeter
+
_
+
_