Micom reset circuit
According to one aspect of the present invention, a microcomputer reset circuit comprises: a microcomputer including first and second terminals to which a predetermined signal is inputted and from which the predetermined signal is outputted; a first comparator having an inverting terminal connected...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | According to one aspect of the present invention, a microcomputer reset circuit comprises: a microcomputer including first and second terminals to which a predetermined signal is inputted and from which the predetermined signal is outputted; a first comparator having an inverting terminal connected to the first terminal and a non-inverting terminal to which a first reference voltage is inputted; a second comparator having a non-inverting terminal to which the first terminal is connected and a non-inverting terminal to which a second reference voltage is inputted; and a switching unit turned on and outputting a reset signal to the second terminal when a high level from the first comparator or second comparator is inputted. Therefore, the microcomputer reset circuit may automatically reset the microcomputer upon the microcomputer congestion.
본 발명의 일 측면에 따른 마이컴 리셋 회로는, 소정 신호가 입출력되는 제1 단자와 제2 단자를 포함하는 마이컴, 반전 단자는 제1 단자와 연결되고, 비반전 단자는 제1 기준 전압이 입력되는 제1 비교기, 비반전 단자는 제1 단자와 연결되고, 반전 단자는 제2 기준 전압이 입력되는 제2 비교기, 제1 비교기 또는 제2 비교기로부터 하이(high) 레벨이 입력되면, 온(on)되어, 제2 단자로 리셋 신호를 출력하는 스위칭부를 포함함으로써, 마이컴 폭주 시 자동으로 마이컴을 리셋할 수 있다. |
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