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    • 9. 发明授权
    • Load driving and diagnosis system and control method
    • 负载驾驶和诊断系统及控制方法
    • US08045311B2
    • 2011-10-25
    • US12336941
    • 2008-12-17
    • Mitsuhiko WatanabeChihiro SatoRyoichi OuraHirofumi KurimotoKoichi Ono
    • Mitsuhiko WatanabeChihiro SatoRyoichi OuraHirofumi KurimotoKoichi Ono
    • H02H3/20
    • H03K17/0822H03K17/18
    • A load driving and diagnosis system controls the feed and block of a load current flowing into an inductor such as a solenoid. The load driving and diagnosis system holds a counter-electromotive force, which is developed when the load current is blocked, at a voltage higher than a supply voltage so that the load current will decay for a short time. When an overcurrent condition is established in the load driving and diagnosis system because of a short circuit to a power supply, a malfunction of a circuit or destruction thereof may take place. In addition to a voltage holding means that holds a switching circuit output voltage at a predetermined voltage, a voltage holding means having a different predetermined voltage set therein is included. Moreover, a selection switch that switches the predetermined voltages according to a detected overcurrent condition is included.
    • 负载驱动和诊断系统控制流入诸如螺线管的电感器的负载电流的馈送和阻塞。 负载驱动和诊断系统保持反电动势,当负载电流被阻塞时,反电动势处于高于电源电压的电压,使得负载电流将在短时间内衰减。 当由于电源短路而在负载驱动和诊断系统中建立过电流状况时,可能发生电路的故障或其破坏。 除了将开关电路输出电压保持在预定电压的电压保持装置之外,还包括具有不同的预定电压的电压保持装置。 此外,包括根据检测到的过电流条件切换预定电压的选择开关。
    • 10. 发明授权
    • Flash A/D converter
    • 闪存A / D转换器
    • US07649486B2
    • 2010-01-19
    • US12140803
    • 2008-06-17
    • Junji ToyomuraYukitoshi YamashitaShogo NakamuraNorifumi KanagawaYasuhide ShimizuKoichi Ono
    • Junji ToyomuraYukitoshi YamashitaShogo NakamuraNorifumi KanagawaYasuhide ShimizuKoichi Ono
    • H03M1/36
    • H03M1/0863H03F3/45188H03F2203/45302H03F2203/45396H03M1/205H03M1/365
    • A flash A/D converter includes a reference voltage generator for generating a plurality of reference voltages, a first group of amplifiers having a plurality of amplifiers each of which amplifies a difference voltage between each reference voltage generated by the reference voltage generator and a voltage of an input signal, and a second group of amplifiers having a plurality of amplifiers. Each amplifier of the first group of amplifiers is a differential amplifier having a different pair formed of a plurality of sets of cascade-connected transistors, and has a first switch for short-circuiting respective cascade connection portions of the plurality of transistors configuring the differential pair. Each amplifier of the second group of amplifiers is a differential amplifier having a differential pair formed of at least two transistors and has a second switch for short-circuiting a portion between input units of the differential pair. The first switch and the second switch are controlled to open and close by a control clock of a predetermined period.
    • 闪光A / D转换器包括用于产生多个参考电压的参考电压发生器,具有多个放大器的第一组放大器,每个放大器放大由参考电压发生器产生的每个参考电压之间的差值电压和 输入信号和具有多个放大器的第二组放大器。 第一组放大器的每个放大器是具有由多组级联晶体管组成的不同对的差分放大器,并且具有第一开关,用于短路构成差分对的多个晶体管的相应级联连接部分 。 第二组放大器的每个放大器是具有由至少两个晶体管形成的差分对的差分放大器,并且具有用于使差分对的输入单元之间的部分短路的第二开关。 第一开关和第二开关通过预定周期的控制时钟被控制为打开和关闭。