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1.发明公开Circuit device for driving an AC electric load 有权Schaltungvorrichtung zur Steuerung einer elektrischen Wechselstromlast
公开(公告)号：EP1017156A1
公开(公告)日：2000-07-05
申请号：EP98830809.4
申请日：1998-12-31
Applicant: STMicroelectronics S.r.l.
Inventor： Milazzotto, Antonino , Di Guardo, Mario , Cucuccio, Antonino , Nicosia, Nicola
CPC classification number: H02P25/10 , H02M5/293 , H02M2003/1555
Abstract: The invention relates to a circuit device (1) for driving an A.C. electric load (M), which device is of the type incorporating a rectifying bridge (2) having a first input (A) connected to one terminal (H) of the electric load (M) and a second input (A') connected to an plug (5) of an A.C. mains supply, the rectifying bridge (2) having output terminals (B,B') connected to a power switch (3) which is controlled by an electric signal (PWM). The device comprises a first circuit loop-back path (7) connected in parallel to the electric load (M) and a second circuit loop-back path (8) connected in parallel to the electric load (M), the first (7) and second (8) paths being alternately activated by the positive and negative half-waves of the mains supply when the switch (3) is in its "off" state.
Abstract translation: 本发明涉及一种用于驱动交流电负载（M）的电路装置（1），该装置是结合有整流桥（2）的装置，该整流桥具有连接到电气的一个端子（H）的第一输入（A） 负载（M）和连接到交流电源的插头（5）的第二输入（A'），整流桥（2）具有连接到电源开关（3）的输出端子（B，B'），电源开关 由电信号（PWM）控制。 该装置包括与电负载（M）并联连接的第一回路路径（7）和与电负载（M）并联连接的第二回路路径（8），第一（7） 并且当开关（3）处于“关闭”状态时，第二（8）路径被主电源的正和负半波交替地激活。
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公开(公告)号：EP1017156B1
公开(公告)日：2003-05-07
申请号：EP98830809.4
申请日：1998-12-31
Applicant: STMicroelectronics S.r.l.
Inventor： Milazzotto, Antonino , Di Guardo, Mario , Cucuccio, Antonino , Nicosia, Nicola
CPC classification number: H02P25/10 , H02M5/293 , H02M2003/1555
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