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HP Manuals
Power Supply
6112A
Operating and service manual
HP 6112A Operating And Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General Information
Description
Specifications
Options
Accessories
Instrument Identification
Ordering Additional Manuals
Installation
Initial Inspection
Mechanical Check
Electrical Check
Installation Data
Location
Power Requirements
230 Volt Operation
Power Cable
Rack Mounting, Two Units
Rack Mounting, One Unit
Repackaging for Shipment
Rack Mounting
Front Panel Controls and Indicators
Connecting Load
Operation of Supply Beyond
Rated Output
Optional Operating Modes
Voltage
Operating Instructions
Operating Controls and 5-15. Indicators
Operating Modes
Normal Operating Mode
Constant Voltage
Current Limit
Remote Resistance Programming
(Constant Voltage)
Remote Voltage Programming
Remote Resistance Programming
Current Limit
Remote Sensing
Series Operation
Normal Series Connections
Parallel Operation
Auto-Tracking Operation
Normal Parallel
Auto-Tracking, Two and Three Units
Special Operating Considerations
Pulse Loading
Output Capacitance
Reverse Voltage Loading
Reverse Current Loading
Multiple Loads
Principles of Operation
Overall1 Block Diagram Discussion
Overall Block Diagram
Simplified Schematic
Normal Strapping Pattern
Detailed Circuit Analysis
Series Regulator
Constant Voltage Input Circuit
Driver and Error Amplifier
Current Limit Circuit
Reference Circuit
Meter Circuit
Test Equipment Required
Output Current Measurement Technique
Test Equipment Required
Performance Test
Rated Output and Meter Accuracy
Differential Voltmeter Substitute
Load Regulation (Front Terminals)
Line Regulation (Front Terminals)
Ripple and Noise
Maintenance
Introduction
General Measurement Techniques
Load Regulation, Test Setup
Transient Recovery Time
Output Impedance
Transient Recovery Time, Test Setup
Transient Recovery Time, Waveforms
Output Impedance, Test Setup
Current Limit
Troubleshooting
Trouble Analysis
Reference Circuit Troubleshooting
High Output Voltage Troubleshooting
Low Output Voltage Troubleshooting
Common Troubles
Servicing Printed Wiring Boards
(Current Limit)
Selected Semiconductor Characteristics
Repair and Replacement
Adjustment and Calibration
Meter Zero
Checks and Adjustments after Replace
Calibration Adjustment Summary
Ammeter Tracking
Constant Voltage Programming
Current
Voltmeter Tracking
Replaceable Parts
Introduction
Ordering Information
Reference Designators
Manufacturers
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DC POWER SUPPLY
s
\
STB SERIES,
MODEL 6112A
SERIAL NUMBER PREFIX ' 6L
\
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Table of Contents
Troubleshooting
Current Limit
31
High Output Voltage Troubleshooting
32
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