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公开(公告)号：US08737092B2
公开(公告)日：2014-05-27
申请号：US13281167
申请日：2011-10-25
申请人： Claudio Adragna
发明人： Claudio Adragna
IPC分类号： H02M3/335
CPC分类号： H02M3/3372 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： A control device controls a switching circuit of a resonant converter having an output direct current. The switching circuit includes at least a half-bridge of at least a first and a second transistor connected between an input voltage and a reference voltage. The half-bridge is adapted to generate a periodic square-wave voltage for driving the resonant circuit of said resonant circuit and the periodic square-wave voltage oscillates between a high voltage corresponding to the input voltage and a low voltage corresponding to the reference voltage. The control device comprises a generator adapted to generate a periodic square-wave signal for driving the half-bridge. The control device comprises a detector adapted to detect the phase-shift between the periodic square-wave signal generated by the generating means and the current flowing through the resonant circuit, and adapted to control the turning off of the half-bridge when the phase-shift exceeds a first phase-shift value.
摘要翻译： 控制装置控制具有输出直流电的谐振转换器的开关电路。 开关电路至少包括连接在输入电压和参考电压之间的至少第一和第二晶体管的半桥。 半桥适于产生用于驱动所述谐振电路的谐振电路的周期性方波电压，并且周期性方波电压在对应于输入电压的高电压和对应于参考电压的低电压之间振荡。 控制装置包括适于产生用于驱动半桥的周期性方波信号的发生器。 控制装置包括检测器，适于检测由发生装置产生的周期性方波信号与流过谐振电路的电流之间的相移，并且适于在相桥时控制半桥的关断， 移位超过第一相移值。
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12.发明授权Integrated circuit for an oscillator structured to drive a control device of a switching resonant converter 有权用于驱动开关谐振转换器的控制装置的振荡器的集成电路公开(公告)号：US08451629B2
公开(公告)日：2013-05-28
申请号：US12979214
申请日：2010-12-27
申请人： Claudio Adragna
发明人： Claudio Adragna
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , Y02B70/1433
摘要： A circuit for an oscillator structured to drive a control device of a switching resonant converter; the converter having a switching circuit structured to drive a resonant load provided with at least one transformer with at least a primary winding and at least a secondary winding. The control device structured to drive the switching circuit, and the converter structured to convert an input signal into an output signal, the integrated circuit includes a first circuit structured to charge and discharge a capacitor by a first current signal such that the voltage at the ends of the capacitor is between first and second reference voltages, the current signal having a second current signal indicating the output voltage of the converter; the integrated circuit including a second circuit structured to rectify a signal indicating the current circulating in the primary winding.
摘要翻译： 一种用于驱动开关谐振变换器的控制装置的振荡器电路， 所述转换器具有开关电路，其被构造为驱动具有至少一个变压器的谐振负载，所述至少一个变压器至少具有初级绕组和至少次级绕组。 所述控制装置被构造成驱动所述开关电路，并且所述转换器被构造为将输入信号转换为输出信号，所述集成电路包括被构造为通过第一电流信号对电容器进行充电和放电的第一电路，使得所述端部处的电压 所述电容器在第一和第二参考电压之间，所述电流信号具有指示所述转换器的输出电压的第二电流信号; 所述集成电路包括被构造成对指示在所述初级绕组中循环的电流的信号进行整流的第二电路。
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公开(公告)号：US08270190B2
公开(公告)日：2012-09-18
申请号：US12366498
申请日：2009-02-05
申请人： Claudio Adragna
发明人： Claudio Adragna
CPC分类号： G05F1/70
摘要： A control device for a power factor correction device in forced switching power supplies is disclosed; the device for correcting the power factor comprises a converter and said control device is coupled with the converter to obtain from an input alternating line voltage a regulated output voltage. The converter comprises a power transistor and the control device comprises a driving circuit of said power transistor; the driving circuit comprises a timer suitable for setting the switch-off period of said power transistor. The timer is coupled with the alternating line voltage in input to the converter and is suitable for determining the switch-off period of the power transistor in function of the value of the alternating line voltage in input to the converter.
摘要翻译： 公开了一种用于强制开关电源中的功率因数校正装置的控制装置; 用于校正功率因数的装置包括转换器，并且所述控制装置与转换器耦合以从输入交替的线路电压获得稳定的输出电压。 所述转换器包括功率晶体管，所述控制装置包括所述功率晶体管的驱动电路; 所述驱动电路包括适于设置所述功率晶体管的截止周期的定时器。 定时器与输入到转换器的交流线路电压耦合，适用于根据输入到转换器的交流线路电压的值来确定功率晶体管的关断周期。
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14.发明授权Isolated voltage converter with feedback on the primary winding, and corresponding method for controlling the output voltage 有权具有初级绕组反馈的隔离式电压转换器，以及控制输出电压的相应方法公开(公告)号：US08199531B2
公开(公告)日：2012-06-12
申请号：US12324062
申请日：2008-11-26
CPC分类号： H02M3/33507 , H02M3/33523
摘要： An embodiment of a voltage converter includes: voltage-transformer means having a primary side, designed to receive an input voltage, and a secondary side, designed to supply an output voltage; control-switch means coupled to said primary side; and a control circuit, coupled to a control terminal of said control-switch means and designed to control switching thereof as a function of a first signal correlated to said output voltage; said control circuit being provided with an error-amplifier stage, designed to process a difference between said first signal and a reference signal, wherein said error-amplifier stage is configured so as to have a transconductance characteristic with a linear-operation region, having a given slope, and at least one first clamped region, which has a slope lower than said given slope and is contiguous to said linear-operation region.
摘要翻译： 电压转换器的实施例包括：设计成接收输入电压的初级侧的电压互感器装置和被设计为提供输出电压的次级侧; 耦合到所述初级侧的控制开关装置; 以及控制电路，其耦合到所述控制开关装置的控制端，并被设计成根据与所述输出电压相关的第一信号来控制其开关; 所述控制电路设置有误差放大器级，被设计为处理所述第一信号和参考信号之间的差异，其中所述误差放大器级被配置为具有线性运算区域的跨导特性，具有线性运算区域 给定斜率，以及至少一个第一夹紧区域，其具有低于所述给定斜率的斜率，并且与所述线性操作区域相邻。
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公开(公告)号：US20120026766A1
公开(公告)日：2012-02-02
申请号：US13191300
申请日：2011-07-26
申请人： Claudio Adragna
发明人： Claudio Adragna
IPC分类号： H02M7/04
CPC分类号： H02M3/156 , H02M1/4225 , H02M2001/0058 , Y02B70/126 , Y02B70/1491
摘要： A control device controls a switching converter that converts an alternating supply voltage to a regulated voltage and comprises a switch connected to an inductor. The control device is adapted to control the on period and the off period of said switch for each cycle. The control device comprises a ramp generator adapted to generate a ramp voltage, a comparator adapted to determine the final instant of the on period of the switch by crossing the ramp voltage with a first voltage. The control device has a first signal representing a current through the inductor and a second signal representative of the current flowing through at least one element of the converter. The control device is adapted to control the closing of said switch according to said first signal and comprises a synchronizer adapted to synchronize the start of the ramp voltage with the zero crossing of said second signal.
摘要翻译： 控制装置控制将交流电源电压转换为调节电压的开关转换器，并且包括连接到电感器的开关。 控制装置适于在每个周期中控制所述开关的接通周期和关闭周期。 控制装置包括适于产生斜坡电压的斜坡发生器，比较器适于通过将斜坡电压与第一电压交叉来确定开关的接通周期的最后时刻。 控制装置具有表示通过电感器的电流的第一信号和表示流过转换器的至少一个元件的电流的第二信号。 控制装置适于根据所述第一信号控制所述开关的闭合，并且包括适于使斜坡电压的起始与所述第二信号的过零点同步的同步器。
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公开(公告)号：US20110157927A1
公开(公告)日：2011-06-30
申请号：US12978841
申请日：2010-12-27
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , Y02B70/1433
摘要： A control device for a resonant converter, the control device including a first circuit to integrate at least one signal indicating a half wave of a current circulating in a primary winding of a transformer; the first circuit is structured to generate at least a control signal of the switching circuit depending on the integrated signal. The control device includes a second circuit to impose the equality of a switching-on time period of the first and second switches.
摘要翻译： 一种用于谐振转换器的控制装置，所述控制装置包括：第一电路，用于积分表示在变压器的初级绕组中循环的电流的半波的至少一个信号; 第一电路被构造成根据积分信号产生至少一个开关电路的控制信号。 控制装置包括施加第一和第二开关的接通时间段相等的第二电路。
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17.发明授权Circuit for reducing the variations of auto-supply voltage of a control circuit of a switching power supply 有权用于减小开关电源的控制电路的自动电源电压的变化的电路公开(公告)号：US07864554B2
公开(公告)日：2011-01-04
申请号：US10589038
申请日：2005-02-21
申请人： Claudio Adragna , Mauro Fagnani
发明人： Claudio Adragna , Mauro Fagnani
IPC分类号： H02M7/5383 , H02M3/335
CPC分类号： H02M3/28 , H02M2001/0006 , H02M2001/009
摘要： A circuit for reducing the variations of auto-supply voltage of a control circuit of a switching power supply, where the control circuit supplies an activation or deactivation signal of a power transistor, includes an auto-supply voltage generator, a controlled switch capable of selectively connecting the generator to the control circuit, and a driving circuit of the controlled switch that supplies a closing signal of the controlled switch after a predefined delay of time starting from the deactivation command.
摘要翻译： 一种用于减小开关电源的控制电路的自动电源电压变化的电路，其中控制电路提供功率晶体管的激活或去激活信号，其包括自动供电电压发生器，能够选择性地 将所述发电机连接到所述控制电路;以及所述受控开关的驱动电路，在从所述停用命令开始的预定义的延迟时间之后提供所述受控开关的闭合信号。
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公开(公告)号：US20090086513A1
公开(公告)日：2009-04-02
申请号：US11906132
申请日：2007-09-28
CPC分类号： H02M3/33523 , H02M3/33507 , Y02B70/1433 , Y10T307/826
摘要： A control device for controlling a switching power supply adapted to convert an input voltage into an output voltage according to a switching rate of a switching element. The control device includes first control means for switching the switching element in a first working mode at a constant frequency and second control means for switching the switching element in a second working mode at a variable frequency, under a maximum frequency, in response to the detection of a predefined operative condition of the switching power supply. The control device further includes means for selecting the first working mode or the second working mode.
摘要翻译： 一种用于控制开关电源的控制装置，其适于根据开关元件的开关速率将输入电压转换为输出电压。 控制装置包括用于以恒定频率切换第一工作模式的开关元件的第一控制装置和用于响应于检测以最大频率以可变频率在第二工作模式下切换开关元件的第二控制装置 的开关电源的预定操作条件。 控制装置还包括用于选择第一工作模式或第二工作模式的装置。
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公开(公告)号：US20080019153A1
公开(公告)日：2008-01-24
申请号：US11459567
申请日：2006-07-24
申请人： Claudio Adragna , Aldo Novelli
发明人： Claudio Adragna , Aldo Novelli
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M1/32 , H02M1/38
摘要： A protection device for a converter includes at least one power switch that operates for a first time period from the time the overload or short-circuit in the converter has been detected. The protection device includes circuitry to control the power switch to minimize the power deliverable by the converter for a second time period from the end of the first operating time period, as well as circuitry to shut down the converter after the second time period.
摘要翻译： 用于转换器的保护装置包括至少一个功率开关，其从已经检测到转换器中的过载或短路的时间起第一时间段操作。 保护装置包括控制电源开关的电路，以使从第一操作时间段结束开始的第二时间段内由转换器输送的功率最小化，以及在第二时间段之后关闭转换器的电路。
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20.发明授权公开(公告)号：US07279876B2
公开(公告)日：2007-10-09
申请号：US10877439
申请日：2004-06-25
IPC分类号： G05F1/40
CPC分类号： H02M1/4225 , G05F1/70 , Y02B70/126
摘要： A device is provided for the correction of the power factor in forced switching power supplies. The device includes a converter, and a first control circuit coupled with the converter so as to obtain a regulated voltage on the output terminal from an alternating network input voltage. The converter includes a power transistor, and the first control circuit is suitable for driving the power transistor in every switching cycle comprising the turn-on time and the turn-off time of the power transistor. The device for the correction of the power factor further includes a second control circuit coupled to the first control circuit and capable of modulating the turn-off time of the power transistor.
摘要翻译： 提供了用于校正强制开关电源中的功率因数的装置。 该装置包括转换器和与转换器耦合的第一控制电路，以便从交替的网络输入电压获得输出端上的调节电压。 该转换器包括功率晶体管，并且第一控制电路适于在包括功率晶体管的接通时间和关断时间的每个开关周期中驱动功率晶体管。 用于校正功率因数的装置还包括耦合到第一控制电路并且能够调制功率晶体管的关断时间的第二控制电路。
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