Frequency dividing circuit arrangement
OwnerJuergen Adamsinventor
Life of this patent
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Abstract
A frequency dividing circuit arrangement is disclosed which comprises a multivibrator or with feedback for dividing frequencies. A current registering means is connected to the output of the multivibrator. The curt registering means registers the output current of the multivibrator and causes the multivibrator to be reset when all overload or fault occurs. As soon as the fault state is eliminated, it is possible to resume normal operation without a cooling down phase. Thermal overloading of an output stage can thus be advantageously avoided. The frequency divider circuit is preferably provided for application in motor vehicles.
Claims20
A frequency dividing circuit arrangement, comprising
- a multivibrator configured as a frequency divider and including a clock input for feeding in an input signal;
- an output at which a signal with a divided frequency of the input signal is made available;
- and with a resetting input, and
- a current registering means comprising a comparator including a first input which is coupled to the output of the multivibrator in order to register an output current which is dependent on tae signal with the divided frequency, a second input which is coupled to a reference source;
- and an output which is coupled to the resetting input of the multivibrator and actuates the resetting input as a function of a comparison result.
Dependencies are inferred from the claim text.