Filter
Top Products
3
TABLE OF CONTENTS
Introduction ...........................................................................................................................................................6
Definitions ..............................................................................................................................................................6
Ambient Temperature..........................................................................................................................................6
Automatic (Auto) Parallel Operation ..................................................................................................................6
Automatic (Auto) Series Operation.....................................................................................................................7
Automatic (Auto) Tracking Operation ................................................................................................................8
Carryover Time....................................................................................................................................................8
Complementary Tracking ....................................................................................................................................8
Compliance Voltage ............................................................................................................................................8
Constant Current Power Supply ..........................................................................................................................8
Constant Voltage Power Supply..........................................................................................................................9
Constant Voltage/Constant Current (CV/CC) Power Supply..............................................................................9
Constant Voltage/Current Limiting (CV/CL) Power Supply............................................................................10
Crowbar Circuit .................................................................................................................................................11
Current Foldback ...............................................................................................................................................11
Drift....................................................................................................................................................................11
Efficiency...........................................................................................................................................................11
Electromagnetic Interference (EMI)..................................................................................................................11
Inrush Current....................................................................................................................................................11
Load Effect (Load Regulation)..........................................................................................................................12
Load Effect Transient Recovery Time ..............................................................................................................12
Off-Line Power Supply......................................................................................................................................12
Output Impedance of a Power Supply ...............................................................................................................12
PARD (Ripple and Noise) .................................................................................................................................13
Programming Speed...........................................................................................................................................14
Remote Programming (Remote Control)...........................................................................................................14
Remote Sensing (Remote Error Sensing) ..........................................................................................................15
Resolution..........................................................................................................................................................15
Source Effect (Line Regulation)........................................................................................................................15
Stability (see Drift) ............................................................................................................................................16
Temperature Coefficient....................................................................................................................................16
Warm Up Time ..................................................................................................................................................16
Principles of Operation.......................................................................................................................................17
Constant Voltage Power Supply........................................................................................................................17
Regulating Techniques...................................................................................................................................18
Series Regulation ...........................................................................................................................................18
Typical Series Regulated Power Supply........................................................................................................19
Pros and Cons of Series Regulated Supplies .................................................................................................19
The Series Regulated Supply - An Operational Amplifier ............................................................................20
Series Regulator with Preregulator ................................................................................................................23
Switching Regulation.....................................................................................................................................25
Basic Switching Supply .................................................................................................................................26