| 摘要 |
A circuit configuration for undervoltage detection of a voltage source includes a reference voltage source being fed by the voltage source and having a first output, a second output, and a device for generating an enable signal at the second output only whenever a reference voltage has attained a stable value. A voltage divider divides a voltage furnished by the voltage source and supplies an output voltage. A comparator has a first input connected to the first output of the reference voltage source, a second input receiving the output voltage of the voltage divider, an output for supplying a detection signal, and a switching device being triggered by the enable signal for enabling the output of the comparator only after the enable signal has been generated.
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