DC POWER HEATER SHORT-TO-CHASSIS GROUND DETECTION CIRCUIT
    8.
    发明公开
    DC POWER HEATER SHORT-TO-CHASSIS GROUND DETECTION CIRCUIT 审中-公开
    直流电源加热器短到地面接地检测电路

    公开(公告)号:EP3220501A1

    公开(公告)日:2017-09-20

    申请号:EP17160738.5

    申请日:2017-03-14

    IPC分类号: H02H3/32 H02H3/16

    CPC分类号: G01R31/40 H02H3/16 H02H3/32

    摘要: An electronics system (10) comprises a heating circuit (12) and a fault detection system (14). The heating circuit (12) includes a heating element (50). The fault detection system (14) includes a first resistor (52) comprising a first resistance (R 1 ), a second resistor (54) comprising a second resistance (R 2 ), the first resistance (R 1 ) being equal to the second resistance (R 2 ), a voltage level detector (30), and a controllable switch (40) connected in series with the first resistor (52) and the second resistor (54), the controllable switch (40) in electronic communication with the voltage level detector (30). A fault may be detected in response to the first voltage being greater than the second voltage.

    摘要翻译: 电子系统(10)包括加热电路(12)和故障检测系统(14)。 加热回路(12)包括加热元件(50)。 故障检测系统(14)包括包含第一电阻(R1)的第一电阻器(52),包含第二电阻(R2)的第二电阻器(54),第一电阻(R1)等于第二电阻(R2) ),电压电平检测器(30)以及与第一电阻器(52)和第二电阻器(54)串联连接的可控开关(40),可控开关(40)与电压电平检测器 30)。 响应于第一电压大于第二电压可以检测到故障。