| 摘要 |
A method and apparatus for voltage/current overage condition protection for a lighting control circuit is presented. The method consists of a hybrid software and hardware solution to take advantage of the useful attributes of both. Overages are sensed in hardware by digital comparators, where the thresholds used as the basis for comparison are predefined in software. When an overage is detected, the circuit outputs, which are controlled by a plurality of counters, are changed by changing the source of the pulse width data used by the counters from software control to predetermined minima stored in a plurality of registers. |
