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Typical Switching Regulated Power Supplies ...............................................................................................27
Summary of Basic Switching Regulator Configurations ...............................................................................30
SCR Regulation..............................................................................................................................................31
Constant Current Power Supply ........................................................................................................................32
Constant Voltage/Constant Current (CV/CC) Power Supply............................................................................34
Constant Voltage/Current Limiting Supplies ....................................................................................................36
Current Limit..................................................................................................................................................36
Current Foldback............................................................................................................................................37
Protection Circuits .............................................................................................................................................38
Protection Circuits for Linear Type Supplies ................................................................................................38
Overvoltage Crowbar Circuit Details ............................................................................................................39
Crowbar Response Time................................................................................................................................41
Special Purpose Power Supplies........................................................................................................................43
High Voltage Power Supply...........................................................................................................................43
High Performance Power Supplies ................................................................................................................45
Extended Range Power Supplies ...................................................................................................................50
Advantages of Extended Range .....................................................................................................................50
Example of Extended Range Power Supply ..................................................................................................51
Faster Down-Programming Speed .................................................................................................................53
Bipolar Power Supply/Amplifier ...................................................................................................................54
Digitally Controlled Power Sources ..............................................................................................................55
AC and Load Connections..................................................................................................................................59
Checklist For AC and Load Connections ..........................................................................................................59
AC Power Input Connections.........................................................................................................................59
Load Connections for One Power Supply......................................................................................................59
Load Connections for Two or More Power Supplies ....................................................................................60
AC Power Input Connections ............................................................................................................................60
Autotransformers ...........................................................................................................................................61
Line Regulators ..............................................................................................................................................61
Input AC Wire Rating ....................................................................................................................................61
LOAD CONNECTIONS FOR ONE POWER SUPPLY...................................................................................61
DC Distribution Terminals.............................................................................................................................62
Load Decoupling............................................................................................................................................64
Ground Loops.................................................................................................................................................65
DC Common ..................................................................................................................................................68
DC Ground Point............................................................................................................................................72
Remote Error Sensing (Constant Voltage Operation Only)...........................................................................72
Load Connections For Two or More Power Supplies .......................................................................................78
DC Distribution Terminals.............................................................................................................................78
DC Common ..................................................................................................................................................79
DC Ground Point............................................................................................................................................79
Remote Programming.........................................................................................................................................80
Constant Voltage Remote Programming With Resistance Control...................................................................80
Remote Programming Connections ...............................................................................................................81
Output Drift....................................................................................................................................................81
Protecting Against Momentary Programming Errors ....................................................................................82
Backup Protection for Open Programming Source........................................................................................83