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    • 1. 发明申请
    • LOAD CONTROLLER
    • 负载控制器
    • US20090153117A1
    • 2009-06-18
    • US12332478
    • 2008-12-11
    • Hiroo YABETsuyoshi UCHIKURATatsumi TASHIROAkihiro TANAKAMasahiro KASAI
    • Hiroo YABETsuyoshi UCHIKURATatsumi TASHIROAkihiro TANAKAMasahiro KASAI
    • G05F1/00
    • H03K7/08H03K5/088H03K2217/0036
    • A load controller includes: an input circuit which detects that a drive instruction signal is less or equal to a first input threshold value; a constant current source activated in accordance with a detection by the input circuit; a PWM signal generating unit that is activated by the constant current source and generates a PWM signal; a comparator that is activated by the constant current source and compares the drive instruction signal with a second input threshold value set to be lower than the first input threshold value; a logic calculation unit that carries out a logic calculation of the PWM signal with a compared result of the comparator; a drive control unit that operates in accordance with an output from the logic calculation unit to generate a PWM drive control signal; and a load driving element that is driven by the PWM drive control signal to control a load.
    • 负载控制器包括:检测驱动指令信号小于或等于第一输入阈值的输入电路; 根据输入电路的检测激活恒流源; PWM信号产生单元,由恒流源激活并产生PWM信号; 比较器,由恒流源激活,并将驱动指令信号与设定为低于第一输入阈值的第二输入阈值进行比较; 逻辑运算单元,用比较器的比较结果进行PWM信号的逻辑运算; 驱动控制单元,其根据来自逻辑运算单元的输出进行运算,生成PWM驱动控制信号; 以及由PWM驱动控制信号驱动以控制负载的负载驱动元件。
    • 2. 发明申请
    • Load control unit
    • 负载控制单元
    • US20090027029A1
    • 2009-01-29
    • US12219585
    • 2008-07-24
    • Hiroo YabeKazuhiro KubotaKazuya TsubakiMasato Sasahara
    • Hiroo YabeKazuhiro KubotaKazuya TsubakiMasato Sasahara
    • G05F1/575
    • H05B39/047H05B37/02
    • A load control unit for controlling the supply of an electric power to a load from battery in accordance with a pulse-width modulation control includes: a reference voltage generating unit; a first charging/discharging unit; a second charging/discharging unit connected in series to the first charging/discharging unit to charge and discharge in reverse to those of the first charging/discharging unit; a first comparing unit that compares the voltage of the first charging/discharging unit with the reference voltage and switches between the charge and discharge of the first charging/discharging unit to generate a triangle wave; and a second comparing unit that compares a divided voltage by dividing the voltage of the battery with the voltage of the triangle wave generated by the first comparing unit to generate a PWM pulse. The ratio of capacities between the first and second charging/discharging units approximates to the ratio of resistances for obtaining the divided voltage.
    • 一种负载控制单元,用于根据脉冲宽度调制控制来控制从电池向负载供电的电力包括:基准电压产生单元; 第一充电/放电单元; 与第一充电/放电单元串联连接的与第一充电/放电单元相反充放电的第二充电/放电单元; 第一比较单元,其将第一充电/放电单元的电压与参考电压进行比较,并且在第一充电/放电单元的充电和放电之间切换以产生三角波; 以及第二比较单元,其通过将所述电池的电压除以由所述第一比较单元产生的三角波的电压来分压所述分压,以产生PWM脉冲。 第一和第二充电/放电单元之间的容量比接近用于获得分压的电阻的比率。
    • 3. 发明申请
    • CONTROL DEVICE AND CONTROL METHOD
    • 控制装置和控制方法
    • US20080315815A1
    • 2008-12-25
    • US12120317
    • 2008-05-14
    • Akira SERIZAWAByungeok SEOHiroo YABE
    • Akira SERIZAWAByungeok SEOHiroo YABE
    • H02P31/00
    • F01P7/08F01P2005/046F01P2031/24H02P29/0241
    • A control device for controlling a recovery from a locking of a motor includes: a switching unit which supplies a motor current from a current supplying unit to the motor; and a driving control unit which supplies a PWM control signal to the switching unit to control a driving of the switching unit. The driving control unit supplies the PWM control signal with a low duty ratio lower than a regular duty ratio to the switching unit when the locking of the motor is detected depending on a variation in temperature of the switching unit. The driving control unit supplies the PWM control signal with the regular duty ratio to the switching unit when a cancel of the locking of the motor is detected depending on a variation in inter-terminal voltage of the motor.
    • 用于控制从电动机的锁定恢复的控制装置包括:切换单元,其将来自电流供应单元的电动机电流提供给电动机; 以及驱动控制单元,其向切换单元提供PWM控制信号以控制切换单元的驱动。 当根据切换单元的温度变化检测到电动机的锁定时,驱动控制单元向切换单元提供低于正常占空比的低占空比的PWM控制信号。 当根据电动机的端子间电压的变化来检测取消电动机的锁定时,驱动控制单元向开关单元提供具有规则占空比的PWM控制信号。
    • 8. 发明申请
    • Control circuit for semiconductor device having overheating protection function
    • 具有过热保护功能的半导体器件控制电路
    • US20070210072A1
    • 2007-09-13
    • US11711822
    • 2007-02-28
    • Hiroo Yabe
    • Hiroo Yabe
    • H05B1/02
    • H01L27/0248H01L2924/0002H01L2924/00
    • A control circuit includes a drive circuit which applies a drive voltage to a semiconductor device having an overheating protection function according to an externally supplied signal; and a current detecting circuit which outputs a detection signal when a drive current flowing through the semiconductor device exceeds a predetermined threshold current. The semiconductor device incorporates a semiconductor element, a temperature detecting circuit for detecting temperature increase of a chip, and an interrupting circuit for interrupting an input to the semiconductor element according to a detection output of the temperature detecting circuit. The drive circuit turns off the semiconductor element and changes the drive voltage to a predetermined voltage so that the drive current exceeds the threshold current when the interrupting circuit interrupts an input to the semiconductor element, and keeps the drive voltage at the predetermined voltage while the detection signal is output from the current detecting circuit.
    • 控制电路包括根据外部提供的信号向具有过热保护功能的半导体器件施加驱动电压的驱动电路; 以及当流过半导体器件的驱动电流超过预定阈值电流时输出检测信号的电流检测电路。 半导体器件包括半导体元件,用于检测芯片的温度升高的温度检测电路,以及用于根据温度检测电路的检测输出中断对半导体元件的输入的中断电路。 驱动电路关闭半导体元件并将驱动电压改变为预定电压,使得当中断电路中断半导体元件的输入时,驱动电流超过阈值电流,并且在检测时将驱动电压保持在预定电压 信号从电流检测电路输出。
    • 9. 发明授权
    • Wiper control device
    • US06600281B2
    • 2003-07-29
    • US09954023
    • 2001-09-18
    • Hiroo Yabe
    • Hiroo Yabe
    • H02P104
    • B60S1/08Y10S318/02
    • The wiper control device comprises a wiper motor 52 for moving a wiper, a switch 53 for outputting a signal which inverts at each single sweep of the wiper, a wiper switch circuit 51 of a combination switch which instructs movement of the wiper, a first solid state switching element FET-b which drives the wiper motor, a controller 55 which turns the first solid state switching element on and off intermittently on the basis of the signal from the switch in a case in which intermittent wiper movement is instructed by the combination switch, a second solid state switching element FET-a2 which is connected in series to the first solid state switching element and is turned on by power source voltage, and a third solid state switching element FET-a1 which is connected in series to the second solid state switching element and is for braking the wiper motor.
    • 10. 发明授权
    • Wiper control apparatus
    • 刮水器控制装置
    • US06400110B1
    • 2002-06-04
    • US09580589
    • 2000-05-30
    • Hiroo YabeKazuhiro Kubota
    • Hiroo YabeKazuhiro Kubota
    • H02P104
    • H02H7/0851B60S1/08
    • A wiper control apparatus includes a combination switch 2, a wiper motor 2, an autostop (AS) switch 8, a first semiconductor switch element 4 for on/off controlling energization of the wiper motor, and a controller for supplying an ON/OFF control signal to the first semiconductor switch element. While the wiper operates in the operation mode set by the combination switch, if the level of the signal produced from said AS switch does not vary for a longer period than a prescribed abnormality detecting period owing to occurrence of abnormality of said wiper motor, said controller forcibly turns off said first semiconductor switch element. In this configuration, a wiper control apparatus can be provided which is compact, reliable and surely operable using a semiconductor switch and a controller digital controlled.
    • 刮水器控制装置包括组合开关2,刮水器马达2,自动停止(AS)开关8,用于开/关控制刮水马达的通电的第一半导体开关元件4和用于提供打开/关闭控制 信号到第一半导体开关元件。 当刮水器以由组合开关设置的操作模式操作时,如果由于所述刮水器马达的异常发生而从所述AS开关产生的信号的电平不比指定的异常检测时段更长的时间段变化,则所述控制器 强制关闭所述第一半导体开关元件。 在这种结构中,可以提供使用半导体开关和数字控制的控制器紧凑,可靠和可靠地操作的刮水器控制装置。