ðə kəntɹˈoʊl sˈɜːkɪt mˈeɪ ˈiːðɚ ʃˈʌt dˌaʊn ðə sˈɜːkɪtɹi ɪɾ ɪz pɹətˈɛktɪŋ, ɹᵻdˈuːs ðə pˈaʊɚɹ ɐvˈeɪləbəl ɪn ˈɔːɹdɚ tʊ ɐvˈɔɪd ˌoʊvɚhˈiːɾɪŋ, ɔːɹ nˈoʊɾᵻfˌaɪ ðə sˈɪstəm sˈɔftwɛɹ ɔːɹ jˈuːzɚ.
The control circuit may either shut down the circuitry it is protecting, reduce the power available in order to avoid overheating, or notify the system (software or user).