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

IPC: H02M5/293 ,  H02P7/638

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。

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

IPC: H02M5/293 ,  H02P7/638

CPC classification number: H02P25/10 ,  H02M5/293 ,  H02M2003/1555

公开(公告)号：EP2317637A1

公开(公告)日：2011-05-04

申请号：EP10191502.3

申请日：2001-10-19

Applicant: STMicroelectronics S.r.l.

Inventor： Milazzotto, Antonino ,  Di Guardo, Mario ,  Cucuccio, Antonino ,  Di Marco, Francesco

IPC: H02M5/293

CPC classification number: H02M5/293

Abstract: The invention relates to a circuit device (10) for driving an AC electric load (3), of the type inserted between a terminal of an AC power supply line and a terminal of the electric load to be driven and including a generator (8) of PWM signals to be transferred to the load. This circuit comprises first and second associated switches (Q1, Q2) for driving respective terminals (A, A') of the load (3), and a third switch (Z3) voltage driven by a signal (Vcontrol) from the PWM generator (8), the third switch (Z3) being used for driving the first and second associated switches (Q1, Q2) through respective first and second transformers (T1, T2) and to enable loop-back of the current..

Abstract translation: 本发明涉及一种用于驱动交流电负载（3）的电路装置（10），该交流电负载（3）插入在交流电源线的端子和待驱动的电负载的端子之间，并包括发电机（8） 的PWM信号传输到负载。 该电路包括用于驱动负载（3）的各个端子（A，A'）的第一和第二关联开关（Q1，Q2）和由来自PWM发生器的信号（Vcontrol）驱动的第三开关（Z3） 8），第三开关（Z3）用于通过相应的第一和第二变压器（T1，T2）驱动第一和第二相关开关​​（Q1，Q2），并使电流回路。