Agilent Technologies E3633A User Manual page 149

Chapter 7 Tutorial
Overview of Agilent E3633A and Agilent E3634A Operation
In terms of performance, a linear regulated supply has a very precise regulating
properties and responds quickly to variations of the line and load. Hence, its line and
load regulation and transient recovery time are superior to supplies using other
regulation techniques. The power supply also exhibits low ripple and noise, is tolerant
of ambient temperature changes, and with its circuit simplicity, has a high reliability.
The Agilent E3633A and Agilent E3634A contain a linear regulated power supply. It
is controlled by a control circuit that provides voltages to program the outputs. The
power supply sends back to the control circuits a voltage representing the output at
the terminals. The control circuits receive information from the front panel and send
information to the display. Similarly the control circuits ''talk'' to the remote interface
for input and output with the GPIB and RS-232 interfaces. The remote interface is at
earth ground and optically isolated from the control circuit and the power supply.
GPIB
RS-232
Figure 7-2. Block Diagram of the Power Supply Showing the Optical Isolation
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OPTICAL
ISOLATION
POWER
CONTROL
SUPPLY
DISPLAY
OUTPUT
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