公开(公告)号：WO2004017482A3

公开(公告)日：2004-03-25

申请号：PCT/BR0300116

申请日：2003-08-15

Applicant: MULTIBRAS ELETRODOMESTICOS SA ,  ROSA FABIO EDUARDO ,  EGUNI GERSON

Inventor： ROSA FABIO EDUARDO ,  EGUNI GERSON

IPC: H02H3/24 ,  H02J1/04 ,  H02J1/14 ,  H02H3/247

CPC classification number: H02J1/04 ,  H02H3/243 ,  H02J1/14 ,  Y10T307/461

Abstract: A system for detecting low voltage in an electric appliance having multiple loads (10) associated with drive switches (20) commanded by respective electronic controls (30) which are energized from a power source (40) connected to an electric network and which are operatively coupled to a command module (50). The system comprises: a compensating load (60), connected to the power source (40) and constructed to maintain constant the relation between the voltage of the electric network and the voltage of the power source (40), regardless of the number of loads (10) being energized; a control unit (70) associated with the command module (50) and with the compensating load (60), to define the current consumption to be produced by the compensating load (60), and a voltage sensing means (S) associated with the power source (40) and with the control unit (70) to promote the de-energization of the loads (10) when the voltage of the power source (40) is lower than a predetermined minimum value.

Abstract translation: 一种用于检测具有多个负载（10）的电器中的低电压的系统，所述多个负载与由各个电子控制器（30）命令的驱动开关（20）相关联，所述电子控制器从连接到电网的电源（40） 耦合到命令模块（50）。 该系统包括：补偿负载（60），连接到电源（40）并被构造为保持电网的电压和电源（40）的电压之间的关系恒定，而不管负载的数量 （10）通电; 与所述命令模块（50）和所述补偿负载（60）相关联的控制单元（70），用于定义由所述补偿负载（60）产生的电流消耗;以及电压感测装置（S），与所述控制单元 当所述电源（40）的电压低于预定最小值时，所述电源（40）和所述控制单元（70）促使所述负载（10）断电。