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
Connecting the Load
160 E3632A User’s Guide
A large load capacitor may cause the power supply to cross
into CC or unregulated mode momentarily when the output
voltage is reprogrammed. The slew rate of the output
voltage will be limited to the current setting divided by the
total load capacitance (internal and external).
Inductive loading
Inductive loads present no loop stability problems in
constant voltage mode. In constant current mode, inductive
loads form a parallel resonance with the power supply’s
output capacitor. Generally this will not affect the stability
of the power supply, but it may cause ringing of the current
in the load.
Pulse loading
In some applications the load current varies periodically
from a minimum to a maximum value. The constant current
circuit limits the output current. Some peak loading
exceeding the current limit can be obtained due to the
output capacitor. To stay within the specifications for the
output, the current limit should be set greater than the peak
current expected or the supply may go into CC mode or
unregulated mode for brief periods.
Table 6 - 2 Slew rate
Internal
capacitance
Internal bleed
resistor
Slew rate at no load and
full scale current setting
470 μF5 KΩ 1.5 V/ms