Apparatus and method for evaluating the performance of a system in a control loop
A monitoring circuit for monitoring the performance of a phase locked loop having a divider therein, the divider comprising at least a first counter, the monitoring circuit comprising at least one memory element for capturing a value of the first counter after a predetermined time from a system even...
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| creator | Khan Muhammad Kalimuddin Mulvaney Kenneth J Kearney Niall Kevin Deeney Michael |
| description | A monitoring circuit for monitoring the performance of a phase locked loop having a divider therein, the divider comprising at least a first counter, the monitoring circuit comprising at least one memory element for capturing a value of the first counter after a predetermined time from a system event in the operation of the phase locked loop, a variability calculator for comparing a value of the counter with a preceding value of the counter to calculate a variation, and a circuit responsive to the estimate of variation for outputting a status signal. |
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| subjects | AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Apparatus and method for evaluating the performance of a system in a control loop |
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