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公开(公告)号：EP1411612A3
公开(公告)日：2006-09-27
申请号：EP03015344.9
申请日：2003-07-08
申请人： LG ELECTRONICS INC.
发明人： Lee, Byeong-Hoon , So, Min-Ho
摘要： In an apparatus and a method for detecting a phase state capable of improving reliability of an air conditioner by preventing an abnormal operation of the air conditioner by detecting a phase state (antiphase and open-phase) of three phase AC power supplied to the air conditioner and displaying the detected phase state, the apparatus includes a phase detector for detecting first, second and third phases of a three phase current; an interrupt detector for detecting a falling edge of a pulse signal corresponded to the third phase of the detected first, second and third phases, recognizing an interrupt occurrence by the third phase when the falling edge is detected and generating a counting signal; a counter for counting a pulse signal corresponded to the first and second phases on the basis of the interrupt occurred-third phase according to the counting signal; an antiphase/open-phase detector for detecting a state as a normal connection state, an antiphase state on the basis of a pulse signal corresponded to the first or second phase counted by the counter and detecting an open-phase state on the basis of the interrupt counting times; and a display unit for displaying a message indicating the antiphase state or the open-phase state or the normal connection state on a screen according to a control signal of the antiphase/open-phase detector.
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公开(公告)号：EP1411612B1
公开(公告)日：2012-05-30
申请号：EP03015344.9
申请日：2003-07-08
申请人： LG Electronics, Inc.
发明人： Lee, Byeong-Hoon , So, Min-Ho
摘要： An interrupt detector (23) that detects falling edge of pulse signal of R, S and T phases of current, recognizes interrupt occurrence in T phase based on which the pulse signals of R and S phases are counted. An antiphase/open-phase detector (24) detects the current phase state as normal connection state based on counted pulse signals, or antiphase/open-phase state based on interrupt counting times. An independent claim is also included for phase state detecting method.
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3.发明公开
公开(公告)号：EP1411612A2
公开(公告)日：2004-04-21
申请号：EP03015344.9
申请日：2003-07-08
申请人： LG ELECTRONICS INC.
发明人： Lee, Byeong-Hoon , So, Min-Ho
摘要： In an apparatus and a method for detecting a phase state capable of improving reliability of an air conditioner by preventing an abnormal operation of the air conditioner by detecting a phase state (antiphase and open-phase) of three phase AC power supplied to the air conditioner and displaying the detected phase state, the apparatus includes a phase detector for detecting first, second and third phases of a three phase current; an interrupt detector for detecting a falling edge of a pulse signal corresponded to the third phase of the detected first, second and third phases, recognizing an interrupt occurrence by the third phase when the falling edge is detected and generating a counting signal; a counter for counting a pulse signal corresponded to the first and second phases on the basis of the interrupt occurred-third phase according to the counting signal; an antiphase/open-phase detector for detecting a state as a normal connection state, an antiphase state on the basis of a pulse signal corresponded to the first or second phase counted by the counter and detecting an open-phase state on the basis of the interrupt counting times; and a display unit for displaying a message indicating the antiphase state or the open-phase state or the normal connection state on a screen according to a control signal of the antiphase/open-phase detector.
摘要翻译： 检测R，S，T相电流脉冲信号的下降沿的中断检测器（23）识别T相中断发生，基于此，对R和S相的脉冲信号进行计数。 反相/开相检测器（24）基于计数脉冲信号或基于中断计数次数的反相/开相状态来检测当前相位状态为正常连接状态。 相位状态检测方法也包含独立权利要求。
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