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1. 发明授权

US06307434B1 Circuit for ensuring full saturation of amplifiers of a single input configured bridge amplifier 有权
标题翻译：用于确保单输入配置桥式放大器的放大器完全饱和的电路
公开(公告)号：US06307434B1
公开(公告)日：2001-10-23
申请号：US09461168
申请日：1999-12-14
申请人： Davide Brambilla , Giovanni Capodivacca
发明人： Davide Brambilla , Giovanni Capodivacca
IPC分类号： H03F368
CPC分类号： H03F3/3081
摘要： A circuit for ensuring a complete saturation of both operational amplifiers of a single-input bridge amplifier is provided. A voltage divider is connected between the inverting inputs of the two amplifiers and a saturation current signal is injected on the intermediate node of the voltage divider. Such a saturation current signal is obtained through dedicated sensing devices of the state of saturation reached by the transistors of the output stages of both amplifiers of the single-input bridge amplifier.
摘要翻译：提供了用于确保单输入桥式放大器的两个运算放大器完全饱和的电路。分压器连接在两个放大器的反相输入端之间，饱和电流信号被注入到分压器的中间节点上。这种饱和电流信号通过专用感测装置获得，该感测装置是由单输入桥式放大器的两个放大器的输出级的晶体管达到的饱和状态。

2. 发明授权

US5801536A Test method for power integrated devices 失效
标题翻译：电力集成设备的测试方法
公开(公告)号：US5801536A
公开(公告)日：1998-09-01
申请号：US574616
申请日：1995-12-19
申请人： Davide Brambilla , Giovanni Capodivacca , Fabrizio Stefani
发明人： Davide Brambilla , Giovanni Capodivacca , Fabrizio Stefani
IPC分类号： G01R31/02 , G01R31/28
CPC分类号： G01R31/2853
摘要： A method of checking an integrity of an electric power connection between a contact pad of an integrated circuit and a corresponding contact pin in an electronic power device, wherein the electronic power device includes at least one final power stage powered from the respective discrete contact pad connected by means of the electric power connection to the respective contact pin. The method of checking is accomplished by providing a resistive connection between two contact pads of the electronic power device bringing the at least one final power stage, powered from the first contact pad, to a conduction state, measuring the potential difference between the two contact pins connected to the two contact pads, and comparing the potential difference with a predetermined nominal potential difference.
摘要翻译：一种检查集成电路的接触焊盘和电子功率器件中的对应接触针之间的电力连接的完整性的方法，其中所述电子功率器件包括至少一个由相应的离散接触焊盘连接的最终功率级通过与相应的接触针的电力连接。检查方法是通过在电子功率器件的两个接触焊盘之间提供电阻连接来实现的，该电阻连接引线使得从第一接触焊盘供电的至少一个最终功率级达到导通状态，测量两个接触引脚之间的电位差连接到两个接触焊盘，并将电位差与预定的标称电位差进行比较。

3. 发明授权

US06255904B1 Anti-pop circuit for AC amplifiers 有权
标题翻译：交流放大器防爆电路
公开(公告)号：US06255904B1
公开(公告)日：2001-07-03
申请号：US09461163
申请日：1999-12-14
申请人： Giovanni Capodivacca , Davide Brambilla
发明人： Giovanni Capodivacca , Davide Brambilla
IPC分类号： H03F114
CPC分类号： H03F1/305
摘要： The anti-pop circuit includes a unity gain buffer with an input coupled to the source of the reference voltage and an output coupled to the input of the amplifier to accelerate the charging of the input coupling capacitor of the amplifier at every turn-on. The capacitor-charging buffer is automatically disabled before the turning-on of the amplifier. The charging buffer may be enabled at start up by generating an impulse of a pre-established duration at the turn-on instant by a monostable circuit or by disabling it upon verifying the decaying to zero of the charging of current of the input coupling capacitor. The circuit eliminates the popping noise at the turn-on without an excessive delay of the turning-on of the amplifier.
摘要翻译：反跳线电路包括具有耦合到参考电压源的输入的单位增益缓冲器和耦合到放大器的输入的输出，以在每次导通时加速放大器的输入耦合电容器的充电。电容充电缓冲器在放大器导通之前自动禁用。充电缓冲器可以在启动时通过在单通电路的导通瞬间产生预先建立的持续时间的脉冲，或者通过在验证输入耦合电容器的电流的衰减为零时禁用该充电缓冲器。该电路消除了导通时的爆音噪声，而放大器的导通不会过度延迟。

4. 发明授权

US06392393B1 Controlled current, voltage mode driving stage 有权
标题翻译：受控电流，电压模式驱动阶段
公开(公告)号：US06392393B1
公开(公告)日：2002-05-21
申请号：US09594244
申请日：2000-06-15
申请人： Davide Brambilla , Giovanni Capodivacca , Danilo Ranieri
发明人： Davide Brambilla , Giovanni Capodivacca , Danilo Ranieri
IPC分类号： G05F316
CPC分类号： H03F3/3071 , H03F1/52 , H03F3/50
摘要： A method of voltage driving a load using a controlled current includes providing a negative feedback of an output current, measuring the output current on a collector of an output transistor of an output stage, comparing the measured output current with an input current to define a current difference, and providing the current difference at a base of the output transistor to provide the voltage driving.
摘要翻译：使用受控电流对负载进行电压驱动的方法包括提供输出电流的负反馈，测量输出级的输出晶体管的集电极上的输出电流，将测得的输出电流与输入电流进行比较以限定电流并且在输出晶体管的基极处提供电流差以提供电压驱动。

5. 发明授权

US07830132B2 Output ripple control circuit and method for a PWM system 有权
标题翻译： PWM系统的输出纹波控制电路和方法
公开(公告)号：US07830132B2
公开(公告)日：2010-11-09
申请号：US12461393
申请日：2009-08-11
申请人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
发明人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
IPC分类号： G05F1/00
CPC分类号： H02M1/143
摘要： An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.
摘要翻译：用于PWM系统的输出纹波控制电路和方法使用滞后阈值钳位PWM系统的输出纹波，使得输出纹波不会随着输出电压的直流电平而变化，因此可以组合输出纹波控制进入任何主循环技术。

6. 发明授权

US07342385B2 Drive circuit for two switching converter stages in a voltage converter 有权
标题翻译：电压转换器中两个开关转换器级的驱动电路
公开(公告)号：US07342385B2
公开(公告)日：2008-03-11
申请号：US11336643
申请日：2006-01-19
申请人： Giovanni Capodivacca , Maurizio Galvano
发明人： Giovanni Capodivacca , Maurizio Galvano
IPC分类号： G05F1/40
CPC分类号： H02M3/1584
摘要： A drive circuit is disclosed including a first feedback circuit designed to generate a first feedback signal from a first voltage to be controlled and a first reference voltage. The drive circuit further includes a signal converter designed to generate a second feedback signal from the first feedback signal such that the difference between the first feedback signal and a first amplitude value of a periodic signal approximately matches the difference between the second feedback signal and a second amplitude value of the periodic signal. The drive circuit also includes a first pulse width modulator which receives the first feedback signal and the periodic signal and generates the first pulse width-modulated signal. In addition the drive circuit includes a second pulse width modulator which receives the second feedback signal and the periodic signal and generates the second pulse width-modulated signal.
摘要翻译：公开了一种驱动电路，其包括设计成从要控制的第一电压和第一参考电压产生第一反馈信号的第一反馈电路。驱动电路还包括信号转换器，被设计为从第一反馈信号产生第二反馈信号，使得第一反馈信号与周期信号的第一幅度值之间的差近似匹配第二反馈信号与第二反馈信号之间的差周期信号的振幅值。驱动电路还包括第一脉冲宽度调制器，其接收第一反馈信号和周期信号并产生第一脉冲宽度调制信号。此外，驱动电路包括接收第二反馈信号和周期信号并产生第二脉冲宽度调制信号的第二脉冲宽度调制器。

7. 发明申请

US20080024101A1 Output ripple control circuit and method for a PWM system 有权
标题翻译： PWM系统的输出纹波控制电路和方法
公开(公告)号：US20080024101A1
公开(公告)日：2008-01-31
申请号：US11493554
申请日：2006-07-27
申请人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
发明人： Jian-Rong Huang , Giovanni Capodivacca , Giuseppe Bernacchia , Kuo-Lung Tseng
IPC分类号： G05F1/00
CPC分类号： H02M1/143
摘要： An output ripple control circuit and method for a PWM system uses a hysteresis threshold to clamp the output ripple of the PWM system such that the output ripple will not vary with the dc level of the output voltage, and therefore the output ripple control may be combined into any main loop technologies.
摘要翻译：用于PWM系统的输出纹波控制电路和方法使用滞后阈值钳位PWM系统的输出纹波，使得输出纹波不会随着输出电压的直流电平而变化，因此可以组合输出纹波控制进入任何主循环技术。

8. 发明申请

US20060061342A1 Actuation circuit for a switch regulating the power consumption in a switching converter 有权
标题翻译：用于调节开关转换器功耗的开关的启动电路
公开(公告)号：US20060061342A1
公开(公告)日：2006-03-23
申请号：US11211381
申请日：2005-08-25
申请人： Giuseppe Bernacchia , Giorgio Chiozzi , Giovanni Capodivacca
发明人： Giuseppe Bernacchia , Giorgio Chiozzi , Giovanni Capodivacca
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： An actuation circuit for a switch element regulating the power consumption of an inductive energy storage element in a switching converter, used to convert an input voltage into an output voltage, is described. The circuit includes a pulse width modulator circuit configured so as to provide a pulse-width-modulated actuating signal for the switch element depending on a regulating signal dependent on the output voltage and a current measurement signal dependent on a current across the inductive storage element. The circuit further includes an arrangement that provides the current measurement signal, wherein the arrangement for providing the current measurement signal is a measuring and regulating arrangement, configured so as to simulate the current measurement signal from a signal dependent on the output voltage, a signal dependent on the difference between the input voltage and the output voltage, and at least a first sampled value of a signal proportional to the current across the inductive storage element during a period of the pulse-width-modulated actuating signal.
摘要翻译：描述了用于将用于将输入电压转换为输出电压的开关转换器中的感应能量存储元件的功率消耗的开关元件的致动电路。电路包括脉冲宽度调制器电路，其被配置为根据取决于输出电压的调节信号和取决于电感存储元件上的电流的电流测量信号，为开关元件提供脉宽调制的致动信号。电路还包括提供电流测量信号的装置，其中用于提供电流测量信号的装置是测量和调节装置，其被配置为从取决于输出电压的信号模拟电流测量信号，依赖于信号关于输入电压和输出电压之间的差异，以及在脉冲宽度调制的致动信号的周期期间至少与跨过感应存储元件的电流成比例的信号的第一采样值。

9. 发明授权

US08674620B2 Multi channel LED driver 有权
标题翻译：多通道LED驱动器
公开(公告)号：US08674620B2
公开(公告)日：2014-03-18
申请号：US12956429
申请日：2010-11-30
申请人： Giovanni Capodivacca , Fabrizio Cortigiani , Andrea Scenini
发明人： Giovanni Capodivacca , Fabrizio Cortigiani , Andrea Scenini
IPC分类号： H05B41/16
CPC分类号： H05B33/0827 , H05B33/0857
摘要： A driver circuit includes a buck converter associated with each LED chain for supplying a load current thereto. The buck converter receives an input voltage and is configured to provide a supply voltage to the associated LED chain such that the resulting load current of the LED chain matches at least approximately a predefined reference current value. The driver circuit further includes a switching converter that receives a driver supply voltage from a power supply and provides, as an output voltage, the input voltage for the buck converters. The switching converter is configured to provide an input voltage to the buck converters such that the maximum of the ratios between the input voltage and the supply voltages provided to the LED chains matches a predefined tolerance reference ratio.
摘要翻译：驱动器电路包括与每个LED链相关联的降压转换器，用于向其提供负载电流。降压转换器接收输入电压并且被配置为向相关联的LED链提供电源电压，使得LED链的所得负载电流与至少近似预定的参考电流值相匹配。驱动器电路还包括开关转换器，其接收来自电源的驱动器电源电压，并提供降压转换器的输入电压作为输出电压。开关转换器被配置为向降压转换器提供输入电压，使得提供给LED链的输入电压和电源电压之间的最大比率匹配预定义的公差参考比。

10. 发明申请

US20090021271A1 Measuring the On-Resistance of a Transistor Load Path 审中-公开
标题翻译：测量晶体管负载路径的导通电阻
公开(公告)号：US20090021271A1
公开(公告)日：2009-01-22
申请号：US11780821
申请日：2007-07-20
申请人： Giuseppe Bernacchia , Giovanni Capodivacca
发明人： Giuseppe Bernacchia , Giovanni Capodivacca
IPC分类号： G01R27/08
CPC分类号： G01R31/2621
摘要： Methods, and apparatuses for performing them, including applying a control signal to a control terminal of a transistor, to switch the transistor to an on-state such that the transistor carries a load current through a load-path of the transistor; measuring a voltage drop across the load-path of the transistor while the load current is passing through the load-path of the transistor, yielding a first measurement value; feeding a test current into the load-path of the transistor, such that the test current and the load current are combined; measuring a voltage drop across the load-path of the transistor while the combined test and load currents are passing through the load-path of the transistor, a second measurement value; and determining an on-resistance of the load-path of the transistor from a difference of the first and second measurement values.
摘要翻译：用于执行它们的方法和装置，包括将控制信号施加到晶体管的控制端子，以将晶体管切换到导通状态，使得晶体管承载通过晶体管的负载路径的负载电流; 测量在负载电流通过晶体管的负载路径时晶体管的负载路径上的电压降，产生第一测量值; 将测试电流馈送到晶体管的负载路径，使得测试电流和负载电流被组合; 当组合的测试和负载电流通过晶体管的负载路径时，测量跨越晶体管的负载路径的电压降，第二测量值; 以及根据第一和第二测量值的差异确定晶体管的负载路径的导通电阻。

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