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    • 32. 发明授权
    • Digital control switching power supply unit
    • 数字控制开关电源单元
    • US08421430B2
    • 2013-04-16
    • US12962391
    • 2010-12-07
    • Masahiro SasakiTetsuya Kawashima
    • Masahiro SasakiTetsuya Kawashima
    • G05F1/00
    • H02M3/157
    • A digital control switching power supply unit includes an A/D converter circuit having a delay line circuit that has a delay element array whose delay time is controlled by a bias current, and that converts a current value into a digital signal using a signal transmission delay time, a phase difference detector circuit that detects a phase difference between a switching cycle and an A/D conversion cycle, a charge pump circuit that generates a control voltage in accordance with the phase difference, and a bias current indicator circuit that determines a bias current in accordance with an output voltage of the charge pump circuit and a result of a comparison of a detected value of the output voltage and a reference voltage, wherein the digital control switching power supply unit controls in such a way that the A/D conversion cycle is synchronized with the switching cycle.
    • 数字控制开关电源单元包括具有延迟线电路的A / D转换器电路,延迟线电路具有延迟元件阵列,其延迟时间由偏置电流控制,并且使用信号传输延迟将电流值转换为数字信号 时间,检测开关周期和A / D转换周期之间的相位差的相位差检测器电路,产生根据相位差的控制电压的电荷泵电路和确定偏置的偏置电流指示器电路 电流根据电荷泵电路的输出电压和输出电压的检测值与参考电压的比较的结果,其中数字控制开关电源单元以这样的方式进行控制,使得A / D转换 周期与开关周期同步。
    • 33. 发明授权
    • Digital control switching power supply unit
    • 数字控制开关电源单元
    • US08164318B2
    • 2012-04-24
    • US12881977
    • 2010-09-14
    • Masahiro SasakiTetsuya Kawashima
    • Masahiro SasakiTetsuya Kawashima
    • G05F1/40
    • H02M3/157H03K5/133H03K7/08H03K2005/00032
    • A digital control switching power supply unit converts an input voltage into a desired output voltage using a digitally controlled pulse width modulation (PWM) signal according to a switching cycle. The power supply unit includes an analog-to-digital converter (ADC). The ADC converts a result of a comparison between an output voltage and a reference voltage to a digital signal during a conversion cycle. The ADC includes a circuit for outputting a phase difference between a switching cycle and the conversion cycle, and a delay circuit. The delay circuit generates a delay output current based on a result of the comparison and the phase difference and determines the conversion time delay according to the delay output current. The delay circuit also generates a delay reference current based on the reference voltage and the phase difference and determining the duration of the conversion cycle according to the delay reference current.
    • 数字控制开关电源单元根据开关周期使用数字控制的脉宽调制(PWM)信号将输入电压转换成期望的输出电压。 电源单元包括模数转换器(ADC)。 在转换周期中,ADC将输出电压和参考电压之间的比较结果转换为数字信号。 ADC包括用于输出开关周期和转换周期之间的相位差的电路和延迟电路。 延迟电路根据比较结果和相位差产生延迟输出电流,并根据延迟输出电流确定转换时间延迟。 延迟电路还基于参考电压和相位差产生延迟参考电流,并根据延迟参考电流确定转换周期的持续时间。
    • 35. 发明授权
    • Engine controller
    • 发动机控制器
    • US07561435B2
    • 2009-07-14
    • US11768401
    • 2007-06-26
    • Masaru KamoshidaMasahiro SasakiTakeshi IgarashiMasahiko Asano
    • Masaru KamoshidaMasahiro SasakiTakeshi IgarashiMasahiko Asano
    • H05K5/06H05K5/02
    • H05K5/062H05K5/0052
    • There is proposed an engine controller which is excellent in reliability in that the outer peripheral edge face (cut surface) of covering member can be prevented from being rusted while securing the water-proofness and dust-proofness. This engine controller comprises a circuit board (12) for controlling an engine; an aluminum die-cast main case body (20) having an open top; and a covering member (30) made of an iron-based metal plate which is preliminarily applied with surface treatment, the covering member (30) being fixedly clamped to the main case body (20) by means of a setscrew (40) so as to hermetically close the open top of the main case body (20); wherein the main case body (20) is provided thereon with a pedestal (24) or groove (25) on which a liquid or jellied water-proofing adhesive (50) is coated or filled (piled), thereby enabling entire outer peripheral edge face (33a) of the covering member (30) to be covered by the water-proofing adhesive (50).
    • 提出了一种可靠性优异的发动机控制器,可以防止覆盖部件的外周缘(切割面)在防水性和防尘性的同时防止生锈。 该发动机控制器包括用于控制发动机的电路板(12) 具有开口顶部的铝压铸主壳体(20) 以及预先进行表面处理的铁基金属板制成的覆盖部件(30),所述覆盖部件(30)通过固定螺丝(40)固定地夹在主壳体(20)上,以便 以封闭主壳体(20)的开口顶部; 其中,所述主壳体(20)上设置有基座(24)或凹槽(25),液体或凝胶状防水粘合剂(50)被涂覆或填充(堆叠),从而使得整个外周边缘面 (30)的被防水粘合剂(50)覆盖的(33a)。