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121
constructed from constant voltage supply......................................................................... 99
definition ............................................................................................................................. 8
limitations ......................................................................................................................... 33
output capacitance............................................................................................................. 33
output impedance .............................................................................................................. 32
performance measurements............................................................................................. 113
Constant voltage/constant current supply, crossover load resistance............................................ 35
crossover operation ........................................................................................................... 34
definition ............................................................................................................................. 9
output characteristic .................................................................................................... 10, 36
overload protection ........................................................................................................... 36
Constant voltage/current limiting supply, current limiting action ................................................ 17
definition ........................................................................................................................... 10
output characteristics................................................................................................... 10, 36
relation to constant voltage/constant current supply......................................................... 32
current foldback ................................................................................................................34
Constant voltage supply, basic feedback loop .............................................................................. 19
Definition ............................................................................................................................ 9
output characteristic ...................................................................................................... 9, 14
output impedance .............................................................................................................. 15
series regulated.................................................................................................................. 16
shunt regulated .................................................................................................................. 15
SCR regulated ...................................................................................................................32
switching regulated ........................................................................................................... 22
Crossover operation (see Constant voltage/constant current supply)
Crowbar protection circuit, definition........................................................................................... 11
indicator light .................................................................................................................... 41
overvoltage control range.................................................................................................. 41
overvoltage margin............................................................................................................ 41
Current monitoring resistor................................................................................................... 34, 115
D
Decoupling capacitor, load............................................................................................................ 78
Differential oscilloscope, in performance measurements ........................................................... 105
Digitally controlled power supplies, voltage source ..................................................................... 56
current source.................................................................................................................... 57
Distribution terminals, dc, definition ............................................................................................ 58
location method........................................................................................................... 57, 79
Drift, definition ............................................................................................................................. 11
Measurement................................................................................................................... 111
Duty cycle loading......................................................................................................................... 91
Dual output, with resistive divider................................................................................................ 94