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    • 5. 发明授权
    • Device for transforming a primary AC voltage in a lower AC voltage in a lower AC voltage for supplying an electrical load
    • 用于转换用于提供电负载的较低AC电压的初级交流电压的装置
    • US07973519B2
    • 2011-07-05
    • US12058020
    • 2008-03-28
    • Mario Di GuardoGiovanni Mangraviti
    • Mario Di GuardoGiovanni Mangraviti
    • G05F1/40
    • H02M5/293
    • A device for transforming an AC voltage to a lower AC voltage includes a generator of a PWM control signal and a first bidirectional switch to couple a load to the AC voltage during a conduction-phase. A second bidirectional switch discharges energy from the load during an off-phase of the first bidirectional switch. A first driving circuit of the first bidirectional switch is input with the PWM control signal and generates a first PWM signal, applied between control and conduction terminals of the first bidirectional switch. A second driving circuit for the second bidirectional switch is input with the PWM control signal and generates a second PWM signal, in phase opposition to the first PWM signal, applied between control and conduction terminals of the second bidirectional switch. An electric decoupling circuit is between the generator and second driving circuit. A transformer is between respective conduction terminals of the bidirectional switches.
    • 用于将AC电压变换为较低AC电压的装置包括PWM控制信号的发生器和在导通阶段期间将负载耦合到AC电压的第一双向开关。 第二双向开关在第一双向开关的非相位期间从负载放电能量。 第一双向开关的第一驱动电路用PWM控制信号输入,并产生施加在第一双向开关的控制和导通端之间的第一PWM信号。 用PWM控制信号输入用于第二双向开关的第二驱动电路,并产生与施加在第二双向开关的控制和导通端子之间的第一PWM信号相位相反的第二PWM信号。 发电机和第二驱动电路之间的电去耦电路。 变压器位于双向开关的各导通端子之间。
    • 7. 发明授权
    • Method and device for sensing a current flowing through an output inductor of a PWM driven converter
    • 用于感测流过PWM驱动转换器的输出电感器的电流的方法和装置
    • US08199536B2
    • 2012-06-12
    • US12639693
    • 2009-12-16
    • Giovanni MangravitiMario Di Guardo
    • Giovanni MangravitiMario Di Guardo
    • H02M3/335
    • H02M3/33507
    • A device generates a signal representative of a current flowing through a load inductor of a converter, the converter having a first transformer including a primary winding driven with a pulse width modulated (PWM) voltage signal. The device may include a sense inductor magnetically coupled to the load inductor, and an integrator configured to integrate a voltage drop on the sense inductor and to generate a first signal representative of the current flowing through the load inductor with an offset. The device may further include a second transformer to be magnetically coupled to the primary winding of the first transformer and generating a second signal representative of a current flowing through the primary winding, and a peak detector configured to sample and hold a peak value of the second signal at every cycle of the PWM voltage signal. The device may also include an adder configured to generate the signal representative of the current flowing through the load inductor as a sum of the first signal and the peak value of the second signal.
    • 器件产生代表流过转换器的负载电感器的电流的信号,该转换器具有第一变压器,该第一变压器包括用脉冲宽度调制(PWM)电压信号驱动的初级绕组。 器件可以包括磁耦合到负载电感器的感测电感器,以及积分器,其被配置为在感测电感器上集成电压降并产生代表以偏移量流过负载电感器的电流的第一信号。 器件还可以包括第二变压器,其被磁耦合到第一变压器的初级绕组,并产生表示流过初级绕组的电流的第二信号,以及峰值检测器,被配置为采样和保持第二变压器的峰值 信号在PWM电压信号的每个周期。 器件还可以包括加法器,其被配置为产生表示流过负载电感器的电流的信号作为第一信号和第二信号的峰值的和。
    • 8. 发明申请
    • METHOD AND DEVICE FOR SENSING A CURRENT FLOWING THROUGH AN OUTPUT INDUCTOR OF A PWM DRIVEN CONVERTER
    • 用于感测通过PWM驱动转换器的输出电感的电流流动的方法和装置
    • US20100157628A1
    • 2010-06-24
    • US12639693
    • 2009-12-16
    • Giovanni MangravitiMario Di Guardo
    • Giovanni MangravitiMario Di Guardo
    • H02M3/335
    • H02M3/33507
    • A device generates a signal representative of a current flowing through a load inductor of a converter, the converter having a first transformer including a primary winding driven with a pulse width modulated (PWM) voltage signal. The device may include a sense inductor magnetically coupled to the load inductor, and an integrator configured to integrate a voltage drop on the sense inductor and to generate a first signal representative of the current flowing through the load inductor with an offset. The device may further include a second transformer to be magnetically coupled to the primary winding of the first transformer and generating a second signal representative of a current flowing through the primary winding, and a peak detector configured to sample and hold a peak value of the second signal at every cycle of the PWM voltage signal. The device may also include an adder configured to generate the signal representative of the current flowing through the load inductor as a sum of the first signal and the peak value of the second signal.
    • 器件产生代表流过转换器的负载电感器的电流的信号,该转换器具有第一变压器,该第一变压器包括用脉冲宽度调制(PWM)电压信号驱动的初级绕组。 器件可以包括磁耦合到负载电感器的感测电感器,以及积分器,其被配置为在感测电感器上集成电压降并产生代表以偏移量流过负载电感器的电流的第一信号。 器件还可以包括第二变压器,其被磁耦合到第一变压器的初级绕组,并产生表示流过初级绕组的电流的第二信号,以及峰值检测器,被配置为采样和保持第二变压器的峰值 信号在PWM电压信号的每个周期。 器件还可以包括加法器,其被配置为产生表示流过负载电感器的电流的信号作为第一信号和第二信号的峰值的和。
    • 9. 发明申请
    • DEVICE FOR TRANSFORMING A PRIMARY AC VOLTAGE IN A LOWER AC VOLTAGE FOR SUPPLYING AN ELECTRICAL LOAD
    • 用于在用于提供电力负载的较低交流电压中转换主要交流电压的装置
    • US20080239769A1
    • 2008-10-02
    • US12058020
    • 2008-03-28
    • Mario Di GuardoGiovanni Mangraviti
    • Mario Di GuardoGiovanni Mangraviti
    • H02M5/458
    • H02M5/293
    • A device for transforming an AC voltage to a lower AC voltage includes a generator of a PWM control signal and a first bidirectional switch to couple a load to the AC voltage during a conduction-phase. A second bidirectional switch discharges energy from the load during an off-phase of the first bidirectional switch. A first driving circuit of the first bidirectional switch is input with the PWM control signal and generates a first PWM signal, applied between control and conduction terminals of the first bidirectional switch. A second driving circuit for the second bidirectional switch is input with the PWM control signal and generates a second PWM signal, in phase opposition to the first PWM signal, applied between control and conduction terminals of the second bidirectional switch. An electric decoupling circuit is between the generator and second driving circuit. A transformer is between respective conduction terminals of the bidirectional switches.
    • 用于将AC电压变换为较低AC电压的装置包括PWM控制信号的发生器和在导通阶段期间将负载耦合到AC电压的第一双向开关。 第二双向开关在第一双向开关的非相位期间从负载放电能量。 第一双向开关的第一驱动电路用PWM控制信号输入,并产生施加在第一双向开关的控制和导通端之间的第一PWM信号。 用PWM控制信号输入用于第二双向开关的第二驱动电路,并产生与施加在第二双向开关的控制和导通端子之间的第一PWM信号相位相反的第二PWM信号。 发电机和第二驱动电路之间的电去耦电路。 变压器位于双向开关的各导通端子之间。
    • 10. 发明申请
    • DEVICE FOR TRANSFORMING AND STABILIZING A PRIMARY AC VOLTAGE FOR SUPPLYING AN ELECTRIC LOAD
    • 用于改变和稳定用于供电电源的主交流电压的装置
    • US20080238377A1
    • 2008-10-02
    • US12058089
    • 2008-03-28
    • Mario Di GuardoGiovanni MANGRAVITI
    • Mario Di GuardoGiovanni MANGRAVITI
    • G05F1/44
    • H02M5/293
    • A device coupled to a primary AC voltage and a load includes an input, an inductive element coupled thereto, and a generator of a PWM control signal. A capacitor is coupled in parallel to the load. A first bidirectional switch couples the load and primary AC voltage during conduction phases. A second bidirectional switch discharges energy from the load during off phases of the first bidirectional switch. A first driving circuit for the second bidirectional switch, input with the PWM control signal, generates a first PWM signal applied between control and conduction terminals of the second bidirectional switch. A second driving circuit for the first bidirectional switch, input with the PWM control signal, generates a second PWN signal, in phase opposition with the first PWM signal, applied between control and conduction terminals of the first bidirectional switch. An electric decoupling circuit is between the generator and the second driving circuit.
    • 耦合到初级AC电压和负载的装置包括输入,耦合到其的感应元件和PWM控制信号的发生器。 电容器与负载并联耦合。 第一个双向开关在传导阶段耦合负载和主交流电压。 第二双向开关在第一双向开关的截止阶段期间从负载放电能量。 第二双向开关的第一驱动电路用PWM控制信号输入,产生施加在第二双向开关的控制和导通端之间的第一PWM信号。 用于PWM控制信号的第一双向开关的第二驱动电路产生与第一双向开关的控制和导通端之间的第一PWM信号相位相反的第二PWN信号。 发电机和第二驱动电路之间的电去耦电路。