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    • 94. 发明授权
    • Synchronous rectification switching regulator, and control circuit and control method therefor
    • 同步整流开关稳压器及其控制电路及其控制方法
    • US07701188B2
    • 2010-04-20
    • US11882817
    • 2007-08-06
    • Shinichi Kojima
    • Shinichi Kojima
    • G05F1/40
    • H02M3/1588Y02B70/1466
    • A synchronous rectification switching regulator, and a control circuit and a control method for controlling the synchronous rectification switching regulator. The regulator includes an output terminal, a first switching device, an inductor, a second switching device for synchronous rectification, a control circuit unit to control switching of the first switching device and cause the second switching device to perform switching opposite to that of the first switching device, and a reverse current detection circuit unit to detect a generation or an indication of a reverse current flowing from the output terminal to the second switching device and make the control circuit unit turn off the second switching device when a generation or an indication of the reverse current is detected. The reverse current detection circuit unit stops detecting a generation or an indication of the reverse current while the second switching device is turned off by the control circuit unit.
    • 同步整流开关稳压器,以及用于控制同步整流开关稳压器的控制电路和控制方法。 调节器包括输出端子,第一开关装置,电感器,用于同步整流的第二开关装置,控制电路单元,用于控制第一开关装置的开关,并使第二开关装置进行与第一开关相反的开关 开关装置和反向电流检测电路单元,用于检测从输出端子流向第二开关装置的反向电流的产生或指示,并使控制电路单元关闭第二开关装置,当产生或指示 检测到反向电流。 反向电流检测电路单元在控制电路单元关闭第二开关器件时停止检测反向电流的产生或指示。
    • 96. 发明申请
    • POWER SUPPLY DEVICE CAPABLE OF STABLY SUPPLYING OUTPUT VOLTAGE WITH INCREASED RESPONSIVENESS
    • 具有稳定提供输出电压的电源设备,具有更高的响应性
    • US20090237055A1
    • 2009-09-24
    • US12403427
    • 2009-03-13
    • Yohichi SAKAIShinichi Kojima
    • Yohichi SAKAIShinichi Kojima
    • G05F1/10
    • H02M3/1588Y02B70/1466
    • In a power supply device, a synchronous rectifier step-down converter alternately turns on and off a switch and a synchronous rectifier switch. A reference voltage generator generates a predetermined reference voltage. An error amplifier outputs an error voltage such that an output voltage of the step-down converter approaches the predetermined reference voltage. A pulse-width signal generator generates a pulse-width signal controlling turning on and off the switch and the synchronous rectifier switch based on the error voltage. A driver circuit controls turning on and off the switch and the synchronous rectifier switch based on the pulse-width signal. An inductor is connected in series with output of the step-down converter. A bypass switch short-circuits an output terminal of the step-down converter to an input terminal of the step-down converter. A mode controller controls turning on and off the bypass switch.
    • 在电源装置中,同步整流降压转​​换器交替地接通和断开开关和同步整流器开关。 参考电压发生器产生预定的参考电压。 误差放大器输出使得降压转换器的输出电压接近预定参考电压的误差电压。 脉冲宽度信号发生器根据误差电压产生控制开关和同步整流器开关的脉冲宽度信号。 驱动电路根据脉宽信号控制开关和同步整流开关的导通和关断。 电感器与降压转换器的输出串联。 旁路开关将降压转换器的输出端子短路到降压转换器的输入端子。 模式控制器控制旁路开关的打开和关闭。
    • 97. 发明申请
    • Synchronous Rectification Switching Regulator, Control Circuit Thereof, and Method of Controlling the Operation Thereof
    • 同步整流开关稳压器及其控制电路及其操作方法
    • US20090201000A1
    • 2009-08-13
    • US11794702
    • 2006-11-09
    • Shinichi KojimaTohru Ueno
    • Shinichi KojimaTohru Ueno
    • G05F1/10
    • H02M3/1588Y02B70/1466Y10S323/908
    • A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor; a control circuit part controlling the switching of the first switching element so that an output voltage from an output terminal of the switching regulator is a predetermined constant voltage, and to cause the second switching element to perform the switching inversely to the first switching element; and a reverse current prevention circuit part interrupting a current that flows into the second switching element by cutting off the connection of the second switching element so as to prevent generation of a reverse current that flows in the direction of the second switching element from the output terminal.
    • 公开了一种同步整流型开关调节器,其包括第一开关元件; 电感器,其通过所述第一开关元件的切换而对所述开关稳压器的输入端子输入的电压进行充电; 第二开关元件,用于同步整流,执行开关以使电感器放电; 控制电路部分,控制第一开关元件的切换,使得来自开关调节器的输出端的输出电压为预定的恒定电压,并使第二开关元件与第一开关元件反向地执行开关; 以及反向电流防止电路部,通过切断第二开关元件的连接来中断流入第二开关元件的电流,以防止从输出端子产生沿第二开关元件的方向流动的反向电流 。