User`s guide
Table Of Contents
- Agilent E3632A DC Power Supply
- Table of Contents
- List of Figures
- List of Tables
- 1 Getting Started
- 2 Operation and Features
- Overview
- Constant Voltage Operation
- Constant Current Operation
- Storing and Recalling Operating States
- Programming the Overvoltage Protection
- Programming the Overcurrent Protection
- Remote Voltage Sensing
- Disabling the Output
- System-Related Operations
- Remote Interface Configuration
- GPIB Interface Configuration
- RS-232 Interface Configuration
- Calibration
- 3 Remote Interface Reference
- SCPI Command Summary
- Introduction to the SCPI Language
- Simplified Programming Overview
- Using the APPLy Command
- Output Settings and Operation Commands
- Triggering Commands
- System-Related Commands
- Calibration Commands
- RS-232 Interface Commands
- SCPI Status Registers
- What is an event register?
- What is an enable register?
- SCPI status system
- The Questionable Status register
- The Standard Event register
- The Status Byte register
- Using Service Request (SRQ) and Serial POLL
- Using *STB? to read the Status Byte
- Using the Message Available Bit (MAV)
- To interrupt your bus controller using SRQ
- To determine when a command sequence is completed
- Using *OPC to signal when data is in the output buffer
- Status Reporting Commands
- Halting an Output in Progress
- SCPI Conformance Information
- IEEE-488 Conformance Information
- 4 Error Messages
- 5 Application Programs
- 6 Tutorial
- 7 Characteristics and Specifications

6 Tutorial
Remote Programming
164 E3632A User’s Guide
Remote Programming
During remote programming a constant- voltage regulated
power supply is called upon to change its output voltage
rapidly. The most important factor limiting the speed of
output voltage change is the output capacitor and load
resistor.
Figure 6-8 Speed of response — programming up (full load)
The equivalent circuit and the nature of the output voltage
waveform when the supply is being programmed upward are
shown in Figure 6- 8. When the new output is programmed,
the power supply regulator circuit senses that the output is
less than desired and turns on the series regulator to its
maximum value I
L
, the current limit or constant current
setting.
This constant current I
L
charges the output capacitor C
O
and load resistor R
L
parallel. The output therefore rises
exponentially with a time constant R
L
C
L
towards voltage
level I
L
R
L
, a value higher than the new output voltage being
programmed.