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    • 32. 发明申请
    • SWITCHING POWER SUPPLY DEVICE AND SEMICONDUCTOR DEVICE
    • 切换电源设备和半导体器件
    • US20130051088A1
    • 2013-02-28
    • US13696037
    • 2010-06-15
    • Tetsuji Yamashita
    • Tetsuji Yamashita
    • H02M3/335
    • H02M1/36H02M3/33523H02M2001/0048Y02B70/1491
    • In a switching power supply device which intermittently executes a switching operation, a power loss which occurs in resumption of the switching operation is reduced. A semiconductor device works as a control circuit for the switching power supply device, and includes: an intermittent oscillation control circuit which alternately gives an instruction for execution and suspension of the switching operation of a switching element; a bottom detecting circuit which detects a bottom of a ringing voltage that develops when the switching element is OFF; a bottom-monitoring time period timing circuit which times a bottom-monitoring time period starting as soon as the instruction for the execution of the switching operation is given; and a turn-on control circuit which turns ON, before the timing of the bottom-monitoring time period ends, the switching element only when the bottom of the ringing voltage is detected.
    • 在间歇地执行切换动作的开关电源装置中,减少了开关动作恢复时发生的功率损耗。 半导体装置作为开关电源装置的控制电路,并且包括:间歇振荡控制电路,交替地给出执行开关指令和暂停开关元件的开关动作; 底部检测电路,其检测当所述开关元件断开时产生的振铃电压的底部; 一个底部监视时间周期定时电路,其在给出用于执行切换操作的指令之后立即开始底部监视时间段; 以及在底部监视时间段的定时结束之前接通的导通控制电路,仅在检测到振铃电压的底部时才将开关元件接通。
    • 33. 发明申请
    • SWITCHING POWER SUPPLY APPARATUS AND SEMICONDUCTOR DEVICE
    • 切换电源设备和半导体器件
    • US20100321963A1
    • 2010-12-23
    • US12816686
    • 2010-06-16
    • Tetsuji Yamashita
    • Tetsuji Yamashita
    • H02M3/335
    • H02M3/33507H02M2001/0032Y02B70/16
    • A semiconductor device providing a control circuit for controlling a switching power supply apparatus includes: an intermittent-oscillation control circuit which outputs an enable signal providing instructions to execute and suspend switching alternately; a turn-on control circuit which changes between an execution state and a suspension state of the switching according to the enable signal, and outputs, only in the execution state, a turn-on signal which turns on the switching element with a switching period; and an intermittent-oscillation frequency control circuit which causes the turn-on control circuit to delay the changing between the execution state and the suspension state so that an intermittence period including periods during which the turn-on control circuit is in the execution state and the turn-on control circuit is in the suspension state falls outside of a specific time range. Intermittent oscillation is thus operated out of a specific frequency band within an audible frequency range.
    • 提供用于控制开关电源装置的控制电路的半导体装置包括:间歇振荡控制电路,其输出提供执行和交替切换指令的使能信号; 导通控制电路,其根据使能信号在执行状态和切换的暂停状态之间变化,并且仅在执行状态下输出以开关周期接通开关元件的导通信号; 以及间歇振荡频率控制电路,其使得导通控制电路延迟执行状态和暂停状态之间的变化,使得包括导通控制电路处于执行状态的周期的间歇期间和 导通控制电路处于暂停状态,超出特定时间范围。 因此,在可听频率范围内的特定频带内进行间歇振荡。
    • 36. 发明授权
    • Semiconductor apparatus for controlling a switching power supply
    • 用于控制开关电源的半导体装置
    • US07259973B2
    • 2007-08-21
    • US11061743
    • 2005-02-22
    • Tetsuji Yamashita
    • Tetsuji Yamashita
    • H02M3/335
    • H02M1/36H02M3/33523H02M2001/0032Y02B70/16Y10T307/858
    • In a semiconductor apparatus for controlling a switching power supply including a switching element and a switching operation control circuit, the switching operation of the switching element is controlled as follows: a comparison is made between an output voltage of an I-V converter, which detects the current of a control terminal and converts the current into a voltage, and a reference voltage of predetermined upper and lower limit voltages for detecting a standby state, and the switching operation of the switching element is stopped when the output voltage of the I-V converter is lower than the standby detection lower limit voltage, and the switching operation of the switching element is restarted when the output voltage of the I-V converter is higher than the standby detection upper limit voltage.
    • 在用于控制包括开关元件和开关操作控制电路的开关电源的半导体装置中,开关元件的开关操作如下控制:比较检测电流的IV转换器的输出电压 的控制端子,并且将电流转换成电压,以及用于检测待机状态的预定上限和下限电压的参考电压,并且当IV转换器的输出电压低于开关元件的开关操作时,停止开关元件的开关操作 当IV转换器的输出电压高于待机检测上限电压时,重新开始待机检测下限电压和开关元件的开关操作。
    • 39. 发明授权
    • Switching power supply
    • 开关电源
    • US06960906B2
    • 2005-11-01
    • US10736509
    • 2003-12-17
    • Tetsuji Yamashita
    • Tetsuji Yamashita
    • H02M3/28H02M3/335G05F1/40
    • H02M3/33523
    • The present invention provides a switching power supply which reduces power consumption in a standby state and improves power supply efficiency. At the time of starting a standby mode in which the output voltage VFB of the IV converter exceeds a standby detection upper limit voltage from a reference voltage source, the switching operation of the switching element is stopped. This stopping reduces the output voltage VFB of the IV converter along with a power supply voltage VO. When the output voltage VFB is lower than a standby detection lower limit voltage from the reference voltage source, the switching operation of the switching element is resumed.
    • 本发明提供一种开关电源,其在待机状态下降低功耗并提高电源效率。 在开始IV转换器的输出电压VFB超过基准电压源的待机检测上限电压的待机模式时,开关元件的开关动作停止。 该停止将IV转换器的输出电压VFB与电源电压VO一起降低。 当输出电压VFB低于来自基准电压源的待机检测下限电压时,恢复开关元件的开关动作。
    • 40. 发明授权
    • System for controlling cooling equipment
    • 冷却设备控制系统
    • US5201187A
    • 1993-04-13
    • US463559
    • 1990-01-11
    • Tomio YoshikawaTakashi KatoTetsuji YamashitaKyoshiro MurakamiShizuo Zushi
    • Tomio YoshikawaTakashi KatoTetsuji YamashitaKyoshiro MurakamiShizuo Zushi
    • F25D11/00F25B49/02F25D13/00F25D17/02G05D23/19
    • G05D23/1912F25B49/02F25D17/02F25B2400/06F25B2500/06
    • A control system for controlling cooling equipment comprising a refrigerant circuit for cooling water by heat exchange, a plurality of cooling modules in a backup relationship with an adjusting apparatus for adjusting the cooling capability of the refrigerant circuit and a controller controlling the adjusting apparatus for adjusting the cooling capability, a control module having a coolant temperature sensor and a controller for calculating a cooling capability control command based on the value detected by the coolant temperature sensor. The controller in one of the cooling modules controls the adjusting apparatus and on the cooling capability control commend transmitted from the controller in the control module. Each of the cooling modules has a coolant temperature sensor for detecting the same coolant temperature as detected by the coolant temperature sensor of the control module so that, when an abnormality occurs in the coolant temperature sensor in the control module, the controller in the control module calculates the cooling capability control command based on the value detected by the coolant temperature sensor in the cooling module. The control system is therefore capable of performing a backup operation effective for the occurrence of an abnormality in the control module.
    • 一种用于控制冷却设备的控制系统,包括通过热交换冷却水的制冷剂回路,与用于调节制冷剂回路的冷却能力的调节装置的备用关系的多个冷却模块和控制调节装置的控制器 冷却能力,具有冷却剂温度传感器的控制模块和用于基于由冷却剂温度传感器检测的值计算冷却能力控制命令的控制器。 其中一个冷却模块中的控制器控制调节装置和控制模块中从控制器发出的冷却能力控制。 每个冷却模块具有用于检测由控制模块的冷却剂温度传感器检测到的相同冷却剂温度的冷却剂温度传感器,使得当控制模块中的冷却剂温度传感器发生异常时,控制模块中的控制器 基于由冷却模块中的冷却剂温度传感器检测出的值来计算冷却能力控制指令。 因此,控制系统能够执行对控制模块发生异常有效的备用操作。