Agilent Technologies 90B manual Protection Circuits for Linear Type Supplies

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

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