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1.发明申请CONTROL DEVICE FOR A QUASI-RESONANT SWITCHING CONVERTER, AND CORRESPONDING CONTROL METHOD 有权适用于开关转换器的控制装置及相应的控制方法公开(公告)号：US20160126846A1
公开(公告)日：2016-05-05
申请号：US14829398
申请日：2015-08-18
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A control device for a switching converter having a transformer, with a primary winding receiving an input quantity, a secondary winding providing an output quantity, an auxiliary winding providing a feedback quantity, and a switch element. The control device has a processing module for generating a control signal for switching the switch element on the basis of the feedback quantity in order to regulate the output quantity via alternation of phases of storage and transfer of energy. The processing module controls the end of the transfer phase by comparing the feedback quantity with a comparison threshold. A discrimination circuit generates a signal for discrimination between the presence of a short circuit on the output or the fact that the input quantity is lower than a threshold. The processing module controls the end of the energy-transfer phase also on the basis of the discrimination signal.
摘要翻译： 一种用于具有变压器的开关转换器的控制装置，其中初级绕组接收输入量，提供输出量的次级绕组，提供反馈量的辅助绕组和开关元件。 控制装置具有处理模块，用于根据反馈量产生用于切换开关元件的控制信号，以通过存储和能量转移的相位的交替来调节输出量。 处理模块通过将反馈量与比较阈值进行比较来控制转移阶段的结束。 识别电路产生用于区分输出上的短路存在或输入量低于阈值的事实的信号。 处理模块也基于鉴别信号控制能量转移阶段的结束。
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公开(公告)号：US09094006B2
公开(公告)日：2015-07-28
申请号：US13888180
申请日：2013-05-06
CPC分类号： H03K17/082 , H02M1/32 , H02M1/36 , H02M1/38 , H02M3/3382 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A control device of a switching circuit of a resonant apparatus is described. The switching circuit comprises at least one half-bridge having a high-side transistor and a low-side transistor connected between an input voltage and a reference voltage; the resonant apparatus comprises a resonant load. The control device is configured to determine the on time period and the off time period of the transistors alternatively and a dead time of both the transistors so that a periodic square-wave voltage is applied to the resonant load. The control device comprises a detector adapted to detect the current sign flowing through the resonant load and a correction circuit configured to extend the current operating time period of said two transistors in response to at least the current sign detected from the detection means.
摘要翻译： 描述谐振装置的开关电路的控制装置。 开关电路包括具有连接在输入电压和参考电压之间的高侧晶体管和低侧晶体管的至少一个半桥; 谐振装置包括谐振负载。 控制装置被配置为确定晶体管的导通时间段和关闭时间段以及两个晶体管的死区时间，使得周期性方波电压被施加到谐振负载。 控制装置包括检测器，其适于检测流过谐振负载的电流符号，以及校正电路，其被配置为响应于至少从检测装置检测到的电流符号来扩展所述两个晶体管的当前工作时间段。
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3.发明授权公开(公告)号：US09329209B1
公开(公告)日：2016-05-03
申请号：US14510925
申请日：2014-10-09
发明人： Mirko Gravati , Domenico Tripodi
CPC分类号： G01R19/04
摘要： A peak detector circuit receives an oscillating power supply signal. A capacitor is selectably coupled to the signal and charged to a value corresponding to a peak value of the signal. A switch is then opened to isolate the capacitor. When the signal rises to within a selected threshold, relative to the stored value, a comparator produces a command signal to close the switch, again coupling the capacitor to the signal. The peak detector can also include a tracking circuit that controls the capacitor to track the oscillating signal while the switch is closed, a timer circuit that closes the switch and activates the tracking circuit if more than a selected time passes without production of a command signal, a circuit that controls the polarity of a leakage current of the capacitor, a further auxiliary capacitor and a further auxiliary switch with a further control logic.
摘要翻译： 峰值检测器电路接收振荡电源信号。 电容器可选地耦合到信号并充电到与信号的峰值对应的值。 然后打开开关以隔离电容器。 当信号上升到所选择的阈值内时，相对于存储值，比较器产生一个命令信号来闭合开关，再次将电容器耦合到信号上。 峰值检测器还可以包括跟踪电路，该跟踪电路控制电容器在开关闭合时跟踪振荡信号;定时器电路关闭开关并激活跟踪电路，如果超过所选时间经过而不产生指令信号， 控制电容器的漏电流的极性的电路，另外的辅助电容器和具有另外的控制逻辑的另外的辅助开关。
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4.发明申请公开(公告)号：US20130162296A1
公开(公告)日：2013-06-27
申请号：US13720236
申请日：2012-12-19
发明人： Mirko Gravati , Claudio Cantoro
IPC分类号： G01R19/04
CPC分类号： G01R19/04 , H03K5/1532
摘要： A peak detector circuit receives an oscillating power supply signal. A capacitor is selectably coupled to the signal and charged to a value corresponding to a peak value of the signal. A switch is then opened to isolate the capacitor. A comparator continually compares the signal with the value stored on the capacitor. When the signal rises to within a selected threshold, relative to the stored value, the comparator produces a command signal to close the switch, again coupling the capacitor to the signal. The peak detector can also include a tracking circuit that controls the capacitor to track the oscillating signal while the switch is closed, a timer circuit configured to close the switch and activate the tracking circuit if more than a selected time passes without production of a command signal, and a circuit configured to control the polarity of a leakage current of the capacitor.
摘要翻译： 峰值检测器电路接收振荡电源信号。 电容器可选地耦合到信号并充电到与信号的峰值对应的值。 然后打开开关以隔离电容器。 比较器连续地将信号与存储在电容器上的值进行比较。 当信号上升到所选择的阈值内时，相对于存储的值，比较器产生一个命令信号来闭合开关，再次将电容器耦合到信号上。 峰值检测器还可以包括跟踪电路，该跟踪电路控制电容器在开关闭合时跟踪振荡信号;定时器电路被配置为关闭开关并激活跟踪电路，如果多于选定的时间经过，而不产生命令信号 以及被配置为控制电容器的漏电流的极性的电路。
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5.发明授权公开(公告)号：US09948188B2
公开(公告)日：2018-04-17
申请号：US14829398
申请日：2015-08-18
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A control device for a switching converter having a transformer, with a primary winding receiving an input quantity, a secondary winding providing an output quantity, an auxiliary winding providing a feedback quantity, and a switch element. The control device has a processing module for generating a control signal for switching the switch element on the basis of the feedback quantity in order to regulate the output quantity via alternation of phases of storage and transfer of energy. The processing module controls the end of the transfer phase by comparing the feedback quantity with a comparison threshold. A discrimination circuit generates a signal for discrimination between the presence of a short circuit on the output or the fact that the input quantity is lower than a threshold. The processing module controls the end of the energy-transfer phase also on the basis of the discrimination signal.
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6.发明授权公开(公告)号：US08884654B2
公开(公告)日：2014-11-11
申请号：US13720511
申请日：2012-12-19
发明人： Mirko Gravati , Claudio Cantoro
IPC分类号： H03K5/153 , H03K5/1532 , G01R19/04
CPC分类号： G01R19/04 , H03K5/1532
摘要： A peak detector circuit receives an oscillating power supply signal. A capacitor is selectably coupled to the signal and charged to a value corresponding to a peak value of the signal. A switch is then opened to isolate the capacitor. A comparator continually compares the signal with the value stored on the capacitor. When the signal rises to within a selected threshold, relative to the stored value, the comparator produces a command signal to close the switch, again coupling the capacitor to the signal. The peak detector can also include a tracking circuit that controls the capacitor to track the oscillating signal while the switch is closed, a timer circuit configured to close the switch and activate the tracking circuit if more than a selected time passes without production of a command signal, and a circuit configured to control the polarity of a leakage current of the capacitor.
摘要翻译： 峰值检测器电路接收振荡电源信号。 电容器可选地耦合到信号并充电到与信号的峰值对应的值。 然后打开开关以隔离电容器。 比较器连续地将信号与存储在电容器上的值进行比较。 当信号上升到所选择的阈值内时，相对于存储的值，比较器产生一个命令信号来闭合开关，再次将电容器耦合到信号上。 峰值检测器还可以包括跟踪电路，该跟踪电路控制电容器在开关闭合时跟踪振荡信号;定时器电路被配置为关闭开关并激活跟踪电路，如果多于选定的时间经过，而不产生指令信号 以及被配置为控制电容器的漏电流的极性的电路。
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7.发明授权公开(公告)号：US12113446B2
公开(公告)日：2024-10-08
申请号：US17698786
申请日：2022-03-18
摘要： A control circuit for controlling a switching stage of an electronic converter includes a first terminal configured to provide a drive signal and a second terminal configured to receive a first feedback signal. A third terminal receives a second feedback signal and a driver circuit provides the drive signal as a function of a PWM signal. A PWM signal generator circuit generates the PWM signal as a function of the first feedback signal, a reference threshold and the second feedback signal or a slope compensation signal. The control circuit is configured to sense an input signal, provide a first compensation parameter, and provide a first compensating signal as a function of a power of the input sensing signal.
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8.发明申请公开(公告)号：US20160103158A1
公开(公告)日：2016-04-14
申请号：US14510925
申请日：2014-10-09
发明人： Mirko Gravati , Domenico Tripodi
IPC分类号： G01R19/04
CPC分类号： G01R19/04
摘要： A peak detector circuit receives an oscillating power supply signal. A capacitor is selectably coupled to the signal and charged to a value corresponding to a peak value of the signal. A switch is then opened to isolate the capacitor. When the signal rises to within a selected threshold, relative to the stored value, a comparator produces a command signal to close the switch, again coupling the capacitor to the signal. The peak detector can also include a tracking circuit that controls the capacitor to track the oscillating signal while the switch is closed, a timer circuit that closes the switch and activates the tracking circuit if more than a selected time passes without production of a command signal, a circuit that controls the polarity of a leakage current of the capacitor, a further auxiliary capacitor and a further auxiliary switch with a further control logic.
摘要翻译： 峰值检测器电路接收振荡电源信号。 电容器可选地耦合到信号并充电到与信号的峰值对应的值。 然后打开开关以隔离电容器。 当信号上升到所选择的阈值内时，相对于存储值，比较器产生一个命令信号来闭合开关，再次将电容器耦合到信号上。 峰值检测器还可以包括跟踪电路，该跟踪电路控制电容器在开关闭合时跟踪振荡信号;定时器电路关闭开关并激活跟踪电路，如果超过所选时间经过而不产生指令信号， 控制电容器的漏电流的极性的电路，另外的辅助电容器和具有另外的控制逻辑的另外的辅助开关。
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公开(公告)号：US20130293267A1
公开(公告)日：2013-11-07
申请号：US13888180
申请日：2013-05-06
IPC分类号： H03K17/082
CPC分类号： H03K17/082 , H02M1/32 , H02M1/36 , H02M1/38 , H02M3/3382 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A control device of a switching circuit of a resonant apparatus is described. The switching circuit comprises at least one half-bridge having a high-side transistor and a low-side transistor connected between an input voltage and a reference voltage; the resonant apparatus comprises a resonant load. The control device is configured to determine the on time period and the off time period of the transistors alternatively and a dead time of both the transistors so that a periodic square-wave voltage is applied to the resonant load. The control device comprises a detector adapted to detect the current sign flowing through the resonant load and a correction circuit configured to extend the current operating time period of said two transistors in response to at least the current sign detected from the detection means.
摘要翻译： 描述谐振装置的开关电路的控制装置。 开关电路包括具有连接在输入电压和参考电压之间的高侧晶体管和低侧晶体管的至少一个半桥; 谐振装置包括谐振负载。 控制装置被配置为确定晶体管的导通时间段和关闭时间段以及两个晶体管的死区时间，使得周期性方波电压被施加到谐振负载。 控制装置包括检测器，其适于检测流过谐振负载的电流符号，以及校正电路，其被配置为响应于至少从检测装置检测到的电流符号来扩展所述两个晶体管的当前工作时间段。
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公开(公告)号：US20130162297A1
公开(公告)日：2013-06-27
申请号：US13720511
申请日：2012-12-19
发明人： Mirko Gravati , Claudio Cantoro
IPC分类号： G01R19/04
CPC分类号： G01R19/04 , H03K5/1532
摘要： A peak detector circuit receives an oscillating power supply signal. A capacitor is selectably coupled to the signal and charged to a value corresponding to a peak value of the signal. A switch is then opened to isolate the capacitor. A comparator continually compares the signal with the value stored on the capacitor. When the signal rises to within a selected threshold, relative to the stored value, the comparator produces a command signal to close the switch, again coupling the capacitor to the signal. The peak detector can also include a tracking circuit that controls the capacitor to track the oscillating signal while the switch is closed, a timer circuit configured to close the switch and activate the tracking circuit if more than a selected time passes without production of a command signal, and a circuit configured to control the polarity of a leakage current of the capacitor.
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