公开(公告)号：US06369460B1

公开(公告)日：2002-04-09

申请号：US09522618

申请日：2000-03-10

Applicant: Takeshi Endoh ,  Kouichi Takagi ,  Keizo Ikeda ,  Kazuhiro Aoki

Inventor： Takeshi Endoh ,  Kouichi Takagi ,  Keizo Ikeda ,  Kazuhiro Aoki

IPC: H02J100

CPC classification number: B60R16/03 ,  H02J7/0031 ,  H02J2007/0039 ,  H02J2007/004 ,  Y10T307/406

Abstract: A power supply monitoring apparatus, for which a plurality of different preset reference current values and corresponding permitted times are provided, includes: a cutoff device; current detection circuits; overcurrent detection circuits; an idle-up command circuit; and a low voltage detection circuit. When an overcurrent detection circuit detects a current value equaling or exceeding at least one of the preset reference current values, and when that condition continues for a time equaling or exceeding a permitted time corresponding to the pertinent reference current value, the circuit transmits a command to the cutoff device to interrupt the current supplied to a power feeding path. Further, when the idle-up command circuit detects an increase in a supplied current, an idle-up command is issued.

Abstract translation: 提供多个不同的预设基准电流值和相应的允许时间的电源监视装置包括：切断装置; 电流检测电路; 过电流检测电路; 空转命令电路; 和低电压检测电路。 当过电流检测电路检测到等于或超过预设参考电流值中的至少一个的电流值时，并且当该条件持续等于或超过对应于相关参考电流值的允许时间的时间时，电路将命令发送到 所述切断装置中断供给到馈电路径的电流。 此外，当怠速命令电路检测到供给电流的增加时，发出怠速命令。

公开(公告)号：US06316967B1

公开(公告)日：2001-11-13

申请号：US09692144

申请日：2000-10-20

Applicant: Kouichi Takagi ,  Takeshi Endoh

Inventor： Kouichi Takagi ,  Takeshi Endoh

IPC: H03K5153

CPC classification number: G01R19/165

Abstract: When a circuit is activated, bases of transistors Q1 and Q2 making up a first current mirror circuit 7 are grounded through switch means 10, whereby a current is forcibly made to flow into the bases of the transistors Q1 and Q2. Thus, the circuit operation can be made reliable at the activation time. A part of load current is shunted with good accuracy via a resistor R1 having a first resistance value of a predetermined magnification of a resistance value of a shunt resistor Rs, the first current mirror circuit 7, and a second current mirror circuit 8, and the output end of the shunted current is grounded via a resistor R2 having a second resistance value, so that an output voltage VOUT proportional to a load current IL can be obtained with good accuracy from the resistor R2 and the load current IL can be found with good accuracy from the output voltage VOUT.

Abstract translation: 当电路被激活时，构成第一电流镜电路7的晶体管Q1和Q2的基极通过开关装置10接地，由此强制地使电流流入晶体管Q1和Q2的基极。 因此，可以在启动时使电路工作可靠。 负载电流的一部分通过具有分流电阻Rs，第一电流镜电路7和第二电流镜电路8的电阻值的预定放大率的第一电阻值的电阻器R1以良好的精度分流，并且 分流电流的输出端经由具有第二电阻值的电阻R2接地，从而可以从电阻R2获得与负载电流IL成正比的输出电压VOUT，并且可以发现负载电流IL良好 从输出电压VOUT的精度。