CS Bound -- Real-Time Level, Current/Voltage that is X dB
above the current/voltage level developed when the voltage/current limit is
applied across a Y ohm load.
Current
When the CS limit is voltage specified in units of Volts or
, select this option to place an upper limit on the
injected CS current that is proportional to the voltage specified in the CS
Limit. The current amplitude injected on the will not exceed the level determined by the
value in the text boxes and the value of the CS limit voltage at the frequency
being evaluated.
There are two text boxes associated with this option for
specifying the upper current boundary. Enter in the first text box the
level in dB by which the current is allowed to exceed the current that would
develop if voltage equal to the CS limit were applied across the impedance
entered in the second text box.
For example, if the value entered in the first text box is
"6"and the value entered in the second text box is 50, the bound will read as
follows, "Current that is 6.00E+00 dB above the current level developed when the
voltage limit is applied across a 5.00E+01 ohm ." If the voltage limit is 69 dBuV at 10 kHz, as
it is for the MIL-STD-461E limit shown above, the maximum current that will be
injected at 10 kHz, where the voltage limit is 69 dBuV, is calculated real-time
as follows:
Since the CS114 limit voltage changes with frequency the
upper bound for current will also change with frequency to "track" the voltage
limit as specified.
Voltage
When the CS limit is current specified in units of Amps or
, select this option to place an upper limit on the
CS voltage injected that is proportional to the current specified in the CS
Limit. The voltage amplitude injected on the conductors will not exceed
the level determined by the value in the text boxes and the value of the CS
limit current at the frequency being evaluated.
There are two text boxes associated with this option for
specifying the upper voltage boundary. Enter in the first text box the
level in dB by which the voltage is allowed to exceed the voltage that would
develop if current equal to the CS limit were applied across the impedance
entered in the second text box.
For example, if the value entered in the first text box is
"10"and the value entered in the second text box is 100, the bound will read as
follows, "Voltage that is 1.00E+01 dB above the voltage level developed when the
current limit is applied across a 1.00E+02 ohm load." If the current limit
is 3.0 Amps at 50 kHz the maximum voltage that will be injected at 50 kHz, where
the current limit is 3.0 Amps, is calculated real-time as follows:
If the CS limit current changes with frequency the upper
bound for voltage will also change with frequency to "track" the current limit
as specified. More:
 CS Bound -- Pre-Test Calibration Level
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