会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明公开
    • SEMICONDUCTOR DEVICE FOR CONTROLLING POWER SOURCE
    • 用于控制电源的半导体器件
    • EP3264581A1
    • 2018-01-03
    • EP16755346.0
    • 2016-02-19
    • Mitsumi Electric Co., Ltd.
    • MATSUDA, HirokiMURATA, Yukio
    • H02M3/28
    • H02M3/28G06F1/32H02M1/32H02M3/33515H02M3/33523H02M7/06H02M7/12H02M2001/0006H02M2001/0032Y02B70/16
    • The problem addressed by the present invention is to detect short-circuiting in an auxiliary winding by means of a semiconductor device for controlling a power source to enable halting switching operations of the power source device. This semiconductor device for controlling a power source is provided with: a high-voltage input start-up terminal into which an AC input voltage is inputted; a power source terminal into which is inputted a voltage induced by the auxiliary winding of a transformer; a switch means which is provided between the high-voltage input start-up terminal and the power source terminal; a power source voltage control circuit which monitors the voltage of the power source terminal and performs control to turn ON the switch means when said voltage is less than or equal to a first voltage value and to turn OFF the switch means when said value has reached a second voltage value; a state control circuit which controls switching ON and OFF the switch means on the basis of the voltage of the power source terminal such that the voltage of the power source terminal is within a voltage range narrower than the voltage range between the first voltage value and the second voltage value; and an auxiliary winding short-circuit detection circuit which detects short-circuits in the auxiliary winding. If a short-circuit is detected in the auxiliary winding, then operation of the ON/OFF control signal generation circuit is stopped and a state control circuit is activated.
    • 本发明解决的问题是借助于用于控制电源的半导体器件来检测辅助绕组中的短路,从而使得能够停止电源装置的开关操作。 该用于控制电源的半导体器件设置有:高压输入启动端子,AC输入电压输入到该高压输入启动端子; 输入由变压器的辅助绕组感应的电压的电源端子; 开关装置,其设置在高压输入启动端子与电源端子之间; 电源电压控制电路,该电源电压控制电路监视电源端子的电压,并且当所述电压小于或等于第一电压值时执行控制以接通开关装置,并且当所述值达到a时切断开关装置 第二电压值; 状态控制电路,其基于电源端子的电压来控制开关装置的接通和断开,使得电源端子的电压在比第一电压值和第二电压值之间的电压范围窄的电压范围内 第二电压值; 以及检测辅助绕组短路的辅助绕组短路检测电路。 如果在辅助绕组中检测到短路,则ON / OFF控制信号发生电路的操作停止,并且状态控制电路被激活。
    • 10. 发明公开
    • POWER CONVERSION DEVICE
    • 电力转换装置
    • EP3200337A1
    • 2017-08-02
    • EP15843810.1
    • 2015-09-24
    • Daikin Industries, Ltd.
    • SAKAKIBARA Kenichi
    • H02M7/12H02M5/458H02M7/48
    • H02M7/48F03G7/08H02J3/36H02M1/42H02M1/4225H02M5/458H02M7/12H02P2201/09
    • An object is to provide a technique for increasing the voltage across a DC link without increasing the power covered by a power buffer circuit. A discharge duty (dc) that is a duty at which a switch (Sc) is conductive takes a value ((Vm/Vc)cos 2 (ωt)) obtained by dividing a product of a crest value (Vm) of a single-phase AC voltage (Vin) and a square (cos 2 (ωt)) of a cosine value of a phase (ωt) of the single-phase AC voltage (Vin) by a both-end voltage (Vc) across a capacitor (C4). A sum of a product of a rectifying duty (drec) that is a duty at which a converter (3) is conductive and a rectified voltage (Vrec) output from the converter (3) and a product of the both-end voltage (Vc) and the discharge duty (dc) varies in a period that is a half of the period of the single-phase AC voltage (Vin).
    • 一个目的是提供一种用于增加直流链路两端的电压而不增加功率缓冲电路所覆盖的功率的技术。 作为开关(Sc)导通时的占空比的放电占空比(dc)采用通过将单相的峰值(Vm)乘积而得到的值((Vm / Vc)cos2(ωt) 交流电压(Vin)和单相交流电压(Vin)的相位(ωt)的余弦值的平方(cos2(ωt))除以电容器(C4)两端的两端电压(Vc)。 作为转换器(3)导通的占空比的整流占空比(drec)与从转换器(3)输出的整流电压(Vrec)的乘积与两端电压(Vc)的乘积之和 ),放电占空比(dc)在单相交流电压(Vin)的一半的期间内变化。