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    • 1. 发明申请
    • CONTROL DEVICE FOR POWER CONVERSION CIRCUIT
    • 电源转换电路的控制装置
    • WO2013180297A2
    • 2013-12-05
    • PCT/JP2013065286
    • 2013-05-31
    • UNIV NAGASAKIPANASONIC CORP
    • KUROKAWA FUJIOOHNISHI MASAHITO
    • H02M3/155H02M7/12
    • H02M3/156G01R19/175H02M1/42H02M1/4225H02M2001/0009H02M2001/4291Y02B70/126
    • The present invention is equipped with: an on-duration information generator circuit (11) which inputs power conversion circuit information comprising at least the output voltage value of a power conversion circuit (2), and which generates on-duration information of a switch (212); a zero crossing detector circuit (12) which inputs the terminal voltage of an inductor (214), detects when the inductor current reaches zero, and generates a zero crossing detection signal when the current has reached zero; and a PWM signal generator circuit (13) which inputs the on-duration information and the zero crossing detection signal, and generates a turn-on signal and a turn-off signal. The zero crossing detector circuit (12) has an edge detector circuit, said edge detector circuit generating a zero crossing detection signal upon detection of an edge appearing in the terminal voltage of the inductor (214). The PWM signal generator circuit (13) generates a turn-on signal when a zero crossing detection signal has been input, and generates a turn-off signal after the duration based on the on-duration information has passed. Thus, variations in the inductor current can be accurately acquired, and good critical mode control can be carried out.
    • 本发明装备有:持续时间信息生成电路(11),其输入至少包含功率转换电路(2)的输出电压值的功率转换电路信息,并生成开关的持续时间信息( 212); 输入电感器(214)的端子电压的过零检测器电路(12)检测电感器电流何时达到零,并且当电流达到零时产生过零检测信号; 以及PWM信号发生器电路(13),其输入接通时间信息和过零检测信号,并产生导通信号和关断信号。 零交叉检测器电路(12)具有边缘检测器电路,所述边缘检测器电路在检测到出现在电感器(214)的端子电压中的边缘时产生过零检测信号。 当输入过零检测信号时,PWM信号发生器电路(13)产生导通信号,并且在基于持续时间信息已经过去的持续时间之后产生关断信号。 因此,可以精确地获取电感器电流的变化,并且可以执行良好的临界模式控制。
    • 2. 发明申请
    • ELECTRIC CIRCUIT CONTROL DEVICE AND ELECTRIC CIRCUIT CONTROL METHOD
    • 电气电路控制装置和电路控制方法
    • WO2009091007A2
    • 2009-07-23
    • PCT/JP2009050490
    • 2009-01-15
    • UNIV NAGASAKI NAT UNIV CORPSHINDENGEN ELECTRIC MFGKUROKAWA FUJIO
    • KUROKAWA FUJIO
    • H02M3/155
    • H02M3/156H02M1/08
    • Provided are a power conversion device provided with a frequency detection circuit capable of judging the change of a control parameter (that the frequency of a frequency signal has changed to a predetermined frequency range on the high-frequency range side or the frequency of a detected signal had reached a predetermined value in an increasing direction) by a simple structure and performing high-precision control, and a method for controlling the power conversion device. An electric circuit control device is provided with a power converter (11), a delay control circuit (16), a frequency signal generation circuit (13), and a frequency detection circuit (14). The frequency detection circuit (13) is provided with a delay signal generation circuit (131) for outputting a second frequency signal obtained by delaying a first frequency signal with time-varying frequency by a predetermined time and provided with a judgment circuit (13) for receiving the first frequency signal (F1) and the second frequency signal (F2), detecting whether or not the period of the first frequency signal (F1) is included in the period of the second frequency signal (F2), and outputting a judgment signal. The driving signal generation circuit (16) drives on/off a switch constituting the power converter (11) according to the judgment result of the judgment circuit (13).
    • 提供了一种电力转换装置,其具有频率检测电路,该频率检测电路能够判断控制参数的变化(频率信号的频率已经变化到高频范围侧的预定频率范围或检测信号的频率 通过简单的结构达到预定值并且执行高精度控制,以及用于控制电力转换装置的方法。 电路控制装置具有功率转换器(11),延迟控制电路(16),频率信号发生电路(13)和频率检测电路(14)。 频率检测电路(13)设置有延迟信号生成电路(131),用于输出通过将具有时变频率的第一频率信号延迟预定时间而获得的第二频率信号,并且具有判断电路(13),用于 接收第一频率信号(F1)和第二频率信号(F2),检测第一频率信号(F1)的周期是否包括在第二频率信号(F2)的周期内,并输出判断信号 。 驱动信号生成电路(16)根据判定电路(13)的判定结果,对组成功率转换器(11)的开关进行驱动开/关。
    • 3. 发明申请
    • CONTROLLER FOR POWER CONVERTER CIRCUIT
    • 电源转换器电路控制器
    • WO2009060807A3
    • 2009-07-02
    • PCT/JP2008069986
    • 2008-10-31
    • UNIV NAGASAKI NAT UNIV CORPKUROKAWA FUJIO
    • KUROKAWA FUJIO
    • H02M3/28
    • H02M3/33507
    • The peak time of the exciting current of a transformer or the variation time of the primary current or the primary voltage corresponding to the peak time is detected. After the peak time occurs and a predetermined period of time from the peak time elapses, a switch is turned on/off. A controller (1) is adapted to a power converter circuit (2) having a transformer (21) and a switch circuit (23) composed of one or more switches. The controller (1) comprises an output voltage detecting unit (11) for detecting the output voltage of the power converter circuit, an exciting current peak time detecting unit (12) for detecting the peak time of the exciting current of the transformer, and a timing generating unit (13) for generating the timings at which the switches are turned on/off according to the output voltage and the peak time.
    • 检测变压器励磁电流的峰值时间或与峰值时间相对应的初级电流或初级电压的变化时间。 在发生高峰时间并且从高峰时间开始经过预定的时间段之后,打开/关闭开关。 控制器(1)适用于具有变压器(21)和由一个或多个开关组成的开关电路(23)的功率变换器电路(2)。 控制器(1)包括用于检测功率变换器电路的输出电压的输出电压检测单元(11),用于检测变压器的励磁电流的峰值时间的励磁电流峰值时间检测单元(12) 定时生成单元(13),用于根据输出电压和峰值时间生成开关导通/截止的定时。
    • 4. 发明申请
    • CONTROLLER FOR POWER CONVERTER CIRCUIT
    • 电源转换器电路控制器
    • WO2009060806A3
    • 2009-07-02
    • PCT/JP2008069985
    • 2008-10-31
    • UNIV NAGASAKI NAT UNIV CORPKUROKAWA FUJIO
    • KUROKAWA FUJIO
    • H02M3/28H02M1/00
    • H02M3/33507
    • A controller adapted to a power converter circuit of current resonance type having a switch and a transformer. The timings at which the switches are turned on/off are generated so that the output voltage may approach a reference voltage and so that the variation of the primary current of the transformer may be reduced. The controller (1) is adapted to a power converter circuit (2) of current resonance type having a switch circuit (23) composed of one or more switches and a transformer (21). The controller (1) comprises an output detecting unit (11) for detecting an output value (the voltage and/or the current) of the power converter circuit (2), a primary current detecting unit (12) for detecting the primary current of the transformer (21), and a timing generating unit (13) for generating the timings at which the switches are turned on/off according to the output value and the primary current.
    • 一种适用于具有开关和变压器的电流谐振型功率变换器电路的控制器。 产生开关导通/截止的定时,使得输出电压可以接近参考电压,并且可以减小变压器的初级电流的变化。 控制器(1)适用于具有由一个或多个开关和变压器(21)组成的开关电路(23)的电流谐振型功率变换器电路(2)。 控制器(1)包括用于检测电力转换器电路(2)的输出值(电压和/或电流)的输出检测单元(11),用于检测初级电流的初级电流检测单元(12) 变压器(21)和定时产生单元(13),用于根据输出值和初级电流产生开关导通/截止的定时。
    • 6. 发明申请
    • CONTROL DEVICE FOR POWER CONVERSION CIRCUIT
    • 电源转换电路的控制装置
    • WO2013039250A3
    • 2013-06-13
    • PCT/JP2012073866
    • 2012-09-18
    • UNIV NAGASAKI NAT UNIV CORPPANASONIC CORP
    • KUROKAWA FUJIOOHNISHI MASAHITO
    • H02M1/00H02M3/155
    • H02M1/42H02M1/4225H02M3/157H02M7/06H02M2001/0022Y02B70/126
    • For DC/DC conversion circuits, this control device obtains a reactor current peak value from an output voltage and an input voltage, and enables operation in a prescribed current mode. For AC/DC conversion circuits, this control device carries out power factor improvement while enabling operation in a prescribed current mode. A first control unit (211) inputs a detected value of an output voltage (eo), computes a turn-off timing prediction value for a switch (Tr) of a DC/DC converter (1), and sends the prediction value to a switch drive signal generation unit (213). A second control unit (212) inputs a detected value of the output voltage (eo) and the input voltage (Ei), acquires the turn-off timing prediction value from the first control unit (211), computes the reactor current (iL) peak value of the DC/DC converter (1) on the basis of the turn-off timing prediction value, and uses the peak value as an initial value to compute, as a turn-on timing prediction value, the amount of time required for the reactor current (iL) to be reduced to a prescribed set value.
    • 对于DC / DC转换电路,该控制装置从输出电压和输入电压获得电抗器电流峰值,并能够在规定的电流模式下进行工作。 对于AC / DC转换电路,该控制装置在规定的电流模式下能够进行功率因数改善。 第一控制单元(211)输入输出电压(eo)的检测值,计算DC / DC转换器(1)的开关(Tr)的截止定时预测值,并将预测值发送到 开关驱动信号生成单元(213)。 第二控制单元(212)输入输出电压(eo)的检测值和输入电压(Ei),从第一控制单元(211)获取关断定时预测值,计算电抗器电流(iL) 基于关断定时预测值对DC / DC转换器(1)的峰值,并且使用峰值作为初始值来计算作为开启时间预测值的开启时间预测值所需的时间量 电抗器电流(iL)减小到规定的设定值。
    • 7. 发明申请
    • CONTROL DEVICE FOR POWER CONVERSION CIRCUIT
    • 电源转换电路的控制装置
    • WO2015159902A2
    • 2015-10-22
    • PCT/JP2015061521
    • 2015-04-14
    • UNIV NAGASAKI
    • KUROKAWA FUJIO
    • H02M3/155
    • H02M3/155
    • [Problem] To estimate the output current value without detecting the output current, and to determine an ON time or a TURN OFF time on the basis of the estimated value and an output voltage and an input voltage. [Solution] A control unit determines an ON time on the basis of a digital input voltage value Ei(n), a digital output voltage value Eo(n), and a digital output current prediction value Io(n) *. The control unit predicts the digital output current value in an nth (normal, present) switching cycle on the basis of (i) the digital input voltage value Ei(n) and the digital output voltage value Eo(n) in the nth switching cycle, and (ii) the calculation result Ton(n-1) for the ON time in the (n-1)th switching cycle. The control unit uses the predicted digital output current prediction value Io(n) * to generate the ON time NTon(n) in the nth switching cycle.
    • [问题]在不检测输出电流的情况下估计输出电流值,并且基于估计值和输出电压和输入电压确定ON时间或TURN OFF时间。 [解决方案]控制单元基于数字输入电压值Ei(n),数字输出电压值Eo(n)和数字输出电流预测值Io(n)*来确定导通时间。 控制单元基于(i)第n个开关周期中的数字输入电压值Ei(n)和数字输出电压值Eo(n),在第n(正常,当前)开关周期中预测数字输出电流值 ,和(ii)第(n-1)个切换周期中的ON时间的计算结果Ton(n-1)。 控制单元使用预测的数字输出电流预测值Io(n)*来生成第n个开关周期中的导通时间NTon(n)。
    • 10. 发明申请
    • DELAY CIRCUIT AND DELAY CIRCUIT SYSTEM
    • 延时电路和延时电路系统
    • WO2009091008A3
    • 2009-10-22
    • PCT/JP2009050491
    • 2009-01-15
    • UNIV NAGASAKI NAT UNIV CORPKUROKAWA FUJIOSHINDENGEN ELECTRIC MFG
    • KUROKAWA FUJIO
    • H03K5/13G06F1/06G06F3/00
    • G06F1/08H03K5/131H03K2005/00019
    • Provided are a delay circuit and a delay circuit system that can generate delays with fine resolution, and for which circuit design is simple. A delay circuit (1) has an impedance circuit, one end of which is connected to the input signal path of a detection circuit (11) and the other end of which is connected to ground. The impedance circuit (12) includes a plurality of switches (SWk) that change the impedance of the whole impedance circuit (12) when ON control signals or OFF control signals are inputted. The impedance of the impedance circuit (12) is changed by combining ON states and OFF states of the plurality of switches, thereby changing the delay time generated by the detection circuit (11).
    • 本发明提供能够以高分辨率产生延迟并且电路设计简单的延迟电路和延迟电路系统。 延迟电路(1)具有阻抗电路,其一端连接到检测电路(11)的输入信号路径,另一端接地。 阻抗电路(12)包括多个开关(SWk),当ON控制信号或OFF控制信号被输入时,所述多个开关(SWk)改变整个阻抗电路(12)的阻抗。 通过组合多个开关的导通状态和断开状态来改变阻抗电路(12)的阻抗,由此改变由检测电路(11)产生的延迟时间。