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公开(公告)号：US09461558B2
公开(公告)日：2016-10-04
申请号：US13749533
申请日：2013-01-24
Applicant: DORA S.p.A. , STMicroelectronics S.r.l.
Inventor： Alberto Bianco , Claudio Adragna
CPC classification number: H02M7/217 , H02M1/4225 , Y02B70/126
Abstract: A control device of a switching converter controls the closing and opening of a switch of the converter that regulates the operation of an inductor. The control device includes a ramp voltage generator, a switch control circuit configured to close the switch based on a comparison of the ramp voltage with a first signal and a generator control circuit configured to control the ramp voltage generator based on a value of a second signal representative of a current flowing through the inductor of the converter, in comparison with the value of a third signal.
Abstract translation: 开关转换器的控制装置控制调节电感器操作的转换器的开关的闭合和断开。 控制装置包括斜坡电压发生器，开关控制电路，其被配置为基于斜坡电压与第一信号的比较来闭合开关，以及发电机控制电路，其被配置为基于第二信号的值来控制斜坡电压发生器 代表流过转换器的电感器的电流，与第三信号的值相比较。
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公开(公告)号：US09154030B2
公开(公告)日：2015-10-06
申请号：US13749539
申请日：2013-01-24
Applicant: DORA S.p.A. , STMicroelectronics S.r.l.
Inventor： Alberto Bianco , Claudio Adragna
CPC classification number: H02M3/156 , H02M1/4225 , H02M3/157 , Y02B70/126
Abstract: A control device controls a switching converter. The converter has an input alternating supply voltage, a regulated direct voltage on the output terminal, and a switch connected to an inductor. The control device controls the closing and opening time period of said switch for each cycle and receives a first input signal representative of the current flowing through one element of the converter. The control device comprises a counter configured to count a time period, a comparator configured to compare said first input signal with a second signal, digital control block configured to control the closing and opening of said switch and to activate said counter to start the counting of said time period when the said first input signal crosses said second signal, with said switch being closed. The digital control block is configured to open the switch when the counter finishes the counting of said time period.
Abstract translation: 控制装置控制开关转换器。 转换器具有输入交流电源电压，输出端子上的稳压直流电压和连接到电感器的开关。 控制装置控制每个周期的所述开关的闭合和打开时间周期，并且接收表示流过转换器的一个元件的电流的第一输入信号。 控制装置包括配置成对时间段进行计数的计数器，被配置为将所述第一输入信号与第二信号进行比较的比较器，被配置为控制所述开关的关闭和打开的数字控制块，并激活所述计数器以开始计数 所述时间段，当所述第一输入信号与所述第二信号相交时，所述开关闭合。 数字控制块被配置为当计数器完成所述时间段的计数时打开开关。
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公开(公告)号：US20150049529A1
公开(公告)日：2015-02-19
申请号：US14458078
申请日：2014-08-12
Applicant: DORA S.p.A. , STMicroelectronics S.r.l.
Inventor： Alberto Iorio , Giuseppe Scappatura , Alberto Bianco , Claudio Adragna , Silvio De Simone , Maurizio Foresta
CPC classification number: H02M7/217 , H02M3/33507 , H02M3/33592 , H02M2001/0058 , Y02B70/1475 , Y02B70/1491
Abstract: A control device for a transistor of a switching converter rectifier generates a control signal of the transistor and comprises a circuit to measure the conduction time of the body diode of the transistor cycle by cycle. When the conduction time is greater than a first threshold, the off time instant of the transistor is delayed by a first quantity in the next cycles, until the conduction time is less than the first threshold and greater than a second threshold. When the conduction time is between the first and second thresholds, the off time instant is delayed by a fixed second quantity in the next cycles until the conduction time is lower than the second threshold, with the second quantity less than the first quantity. When the conduction time is lower than the second threshold, the off time instant is advanced by the second quantity in the next cycle.
Abstract translation: 用于开关转换器整流器的晶体管的控制装置产生晶体管的控制信号，并且包括用于逐周期地测量晶体管体二极管的导通时间的电路。 当导通时间大于第一阈值时，晶体管的截止时间瞬间在下一个周期中延迟第一量，直到导通时间小于第一阈值并大于第二阈值。 当导通时间在第一阈值和第二阈值之间时，关闭时刻在下一个周期中延迟固定的第二数量，直到导通时间低于第二阈值，第二数量小于第一数量。 当导通时间低于第二阈值时，关闭时刻在下一个周期中提前第二个数量。
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公开(公告)号：US20130194845A1
公开(公告)日：2013-08-01
申请号：US13749533
申请日：2013-01-24
Applicant: DORA S.P.A. , STMICROELECTRONICS S.R.L.
Inventor： Alberto Bianco , Claudio Adragna
IPC: H02M7/217
CPC classification number: H02M7/217 , H02M1/4225 , Y02B70/126
Abstract: A control device of a switching converter controls the closing and opening of a switch of the converter that regulates the operation of an inductor. The control device includes a ramp voltage generator, a switch control circuit configured to close the switch based on a comparison of the ramp voltage with a first signal and a generator control circuit configured to control the ramp voltage generator based on a value of a second signal representative of a current flowing through the inductor of the converter, in comparison with the value of a third signal.
Abstract translation: 开关转换器的控制装置控制调节电感器操作的转换器的开关的闭合和断开。 控制装置包括斜坡电压发生器，开关控制电路，其被配置为基于斜坡电压与第一信号的比较来闭合开关，以及发电机控制电路，其被配置为基于第二信号的值来控制斜坡电压发生器 代表流过转换器的电感器的电流，与第三信号的值相比较。
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公开(公告)号：US09356535B2
公开(公告)日：2016-05-31
申请号：US14458078
申请日：2014-08-12
Applicant: DORA S.p.A. , STMicroelectronics S.r.l.
Inventor： Alberto Iorio , Giuseppe Scappatura , Alberto Bianco , Claudio Adragna , Silvio De Simone , Maurizio Foresta
CPC classification number: H02M7/217 , H02M3/33507 , H02M3/33592 , H02M2001/0058 , Y02B70/1475 , Y02B70/1491
Abstract: A control device for a transistor of a switching converter rectifier generates a control signal of the transistor and includes a circuit to measure the conduction time of the body diode of the transistor cycle by cycle. When the conduction time is greater than a first threshold, the off time instant of the transistor is delayed by a first quantity in the next cycles, until the conduction time is less than the first threshold and greater than a second threshold. When the conduction time is between the first and second thresholds, the off time instant is delayed by a fixed second quantity in the next cycles until the conduction time is lower than the second threshold, with the second quantity less than the first quantity. When the conduction time is lower than the second threshold, the off time instant is advanced by the second quantity in the next cycle.
Abstract translation: 用于开关转换器整流器的晶体管的控制装置产生晶体管的控制信号，并且包括用于逐周期地测量晶体管体二极管的导通时间的电路。 当导通时间大于第一阈值时，晶体管的截止时间瞬间在下一个周期中延迟第一量，直到导通时间小于第一阈值并大于第二阈值。 当导通时间在第一阈值和第二阈值之间时，关闭时刻在下一个周期中延迟固定的第二数量，直到导通时间低于第二阈值，第二数量小于第一数量。 当导通时间低于第二阈值时，关闭时刻在下一个周期中提前第二个数量。
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Patent Agency Ranking
公开(公告)号：US20130194842A1
公开(公告)日：2013-08-01
申请号：US13749539
申请日：2013-01-24
Applicant: DORA S.P.A. , STMicroelectronics S.r.l.
Inventor： Alberto Bianco , Claudio Adragna
IPC: H02M3/156
CPC classification number: H02M3/156 , H02M1/4225 , H02M3/157 , Y02B70/126
Abstract: A control device controls a switching converter. The converter has an input alternating supply voltage, a regulated direct voltage on the output terminal, and a switch connected to an inductor. The control device controls the closing and opening time period of said switch for each cycle and receives a first input signal representative of the current flowing through one element of the converter. The control device comprises a counter configured to count a time period, a comparator configured to compare said first input signal with a second signal, digital control block configured to control the closing and opening of said switch and to activate said counter to start the counting of said time period when the said first input signal crosses said second signal, with said switch being closed. The digital control block is configured to open the switch when the counter finishes the counting of said time period.
Abstract translation: 控制装置控制开关转换器。 转换器具有输入交流电源电压，输出端子上的稳压直流电压和连接到电感器的开关。 控制装置控制每个周期的所述开关的闭合和打开时间周期，并且接收表示流过转换器的一个元件的电流的第一输入信号。 控制装置包括配置成对时间段进行计数的计数器，被配置为将所述第一输入信号与第二信号进行比较的比较器，被配置为控制所述开关的关闭和打开的数字控制块，并激活所述计数器以开始计数 所述时间段，当所述第一输入信号与所述第二信号相交时，所述开关闭合。 数字控制块被配置为当计数器完成所述时间段的计数时打开开关。
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公开(公告)号：US20230156881A1
公开(公告)日：2023-05-18
申请号：US18151191
申请日：2023-01-06
Applicant: STMicroelectronics S.r.l.
Inventor： Giovanni Gritti , Claudio Adragna
IPC: H05B45/10 , H02M1/42 , H05B45/385
CPC classification number: H05B45/10 , H02M1/4225 , H02M1/4258 , H05B45/385
Abstract: A control circuit includes an output terminal configured to be coupled to a control terminal of a transistor that has a current path coupled to an inductor; a transconductance amplifier configured to produce a sense current based on a current flowing through the current path of the transistor; and a first capacitor. The control circuit is configured to turn on the transistor based on a clock signal, integrate the sense current with an integrating capacitor to generate a first voltage, generate a second voltage across the first capacitor based on a first current, generate a second current based on the second voltage, generate a third voltage based on the second current, turn off the transistor when the first voltage becomes higher than the third voltage; discharge the integrating capacitor when the transistor turns off; and regulate an average output current flowing through the inductor based on the first current.
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公开(公告)号：US11452184B1
公开(公告)日：2022-09-20
申请号：US17487944
申请日：2021-09-28
Applicant: STMicroelectronics S.r.l.
Inventor： Claudio Adragna , Giovanni Gritti
IPC: H05B45/10 , H02M1/42 , H05B45/385
Abstract: A control circuit includes: a flip-flop having an output configured to be coupled to a control terminal of a transistor and for producing a first signal; a comparator having an output coupled to an input of the flip-flop, and first and second inputs for receiving first and second voltages, respectively; a transconductance amplifier having an input for receiving a sense voltage indicative of a current flowing through the transistor, and an output coupled to the first input of the comparator; a zero crossing detection (ZCD) circuit having an input configured to be coupled to a first current path terminal of the transistor and to an inductor, where the ZCD circuit is configured to detect a demagnetization time of the inductor and produce a third signal based on the detected demagnetization time; and a reference generator configured to generate the second voltage based on the first and third signals.
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公开(公告)号：US11258354B2
公开(公告)日：2022-02-22
申请号：US17151397
申请日：2021-01-18
Applicant: STMicroelectronics S.r.l.
Inventor： Alfio Pasqua , Salvatore Tumminaro , Marco Sammartano , Claudio Adragna
Abstract: An embodiment PFC control circuit includes a first terminal providing a drive signal to an electronic switch of a boost converter, a second terminal receiving a feedback signal indicative of an output voltage generated by the boost converter, and a third terminal connected to a compensation network. An error amplifier generates a current as a function of the voltage at the second terminal and a reference voltage, wherein an output of the error amplifier is coupled to the third terminal. A driver circuit generates the drive signal as a function of the voltage at the third terminal, and selectively activates or deactivates the generation of the drive signal as a function of a burst mode enable signal. A detection circuit generates the burst mode enable signal as a function of the voltage at the second terminal.
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公开(公告)号：US10250145B2
公开(公告)日：2019-04-02
申请号：US15653145
申请日：2017-07-18
Applicant: STMicroelectronics S.r.l.
Inventor： Claudio Adragna , Aldo Vittorio Novelli , Christian Leone Santoro
Abstract: A circuit includes a timer circuit configured to generate a first control signal defining a first time period and a second control signal defining a second time period. A controller is configured to control a high-side and a low-side transistor of a half-bridge circuit in response to the first and second control signals only during a first switching cycle of the half-bridge circuit. The half-bridge circuit includes a bootstrap capacitor coupled to a node between the high-side and low-side transistors. The controller turns on the low-side transistor for the first time period during the first switching cycle and configured turns off the low-side and the high-side transistors for the second time period during the first switching cycle.
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