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1. 发明授权

US09735663B2 BJT drive scheme 有权
公开(公告)号：US09735663B2
公开(公告)日：2017-08-15
申请号：US14504124
申请日：2014-10-01
申请人： Power Integrations, Inc.
发明人： Manoj Bhasin , Antonius Jacobus Johannes Werner , Paul Ryan , Johan Piper
IPC分类号： H02M1/08 , H02M1/36 , H02M3/156 , H02M1/00 , H02M3/335
CPC分类号： H02M1/08 , H02M1/36 , H02M3/156 , H02M3/335 , H02M2001/0006
摘要： The invention generally relates to switch mode power converters (SMPCs). and methods for providing supplementary base drive to a bipolar transistor of an SMPC, and more particularly to a switching control circuit for a SMPC, a said SMPC having an inductive component coupled to receive power from an input to the SMPC, a bipolar transistor coupled to control current flow in the inductive component, an auxiliary power rail, a charge store for supplying power via the auxiliary rail to a switching control circuit for driving the bipolar transistor, and a bootstrap circuit for bleeding current from the input to the bipolar transistor to thereby provide an amplified current to the charge store, the switching control circuit comprising: a base current line for coupling to a base terminal of a said bipolar transistor, an emitter current line for coupling to an emitter terminal of a said bipolar transistor, an auxiliary line for coupling to a said auxiliary power rail, and at least one reference line for coupling to a reference voltage; a base current switch configured to controllably couple a base current source to the base current line; an emitter current switch configured to controllably couple the emitter current line to a said reference line; a bootstrap element for bleeding current from the emitter current line to the auxiliary line, the bootstrap element further operable to block a said current according to a current or voltage bias; a base discharge switch configured to controllably bleed current from the base current line to a said reference line; and a supplementary base drive line for coupling to a series circuit comprising a supplementary base drive resistor and current control element coupled in series, a said series circuit for bleeding current from a said input to a said base terminal, a said current control element for blocking current flow from a said bootstrap circuit to a said supplementary base drive resistor.

2. 发明授权

US09531264B2 Auxiliary recharge 有权
标题翻译：辅助充电
公开(公告)号：US09531264B2
公开(公告)日：2016-12-27
申请号：US14184073
申请日：2014-02-19
申请人： Power Integrations, Inc.
发明人： Paul Ryan , Johan Piper
IPC分类号： H02M3/156 , H02M3/335 , H02M1/00
CPC分类号： H02M1/08 , H02J7/0052 , H02J7/0063 , H02M3/156 , H02M7/539 , H02M2001/0006 , H02M2001/0054 , Y10T307/344
摘要： The present invention generally relates to powering a switching controller of a switch mode power converter (SMPC), and more particularly to a method of providing power to a switching controller of a SMPC, to a charging circuit for supplying charge to a charge store for providing power to a switching controller of a SMPC, and to an SMPC comprising such a circuit. A method of providing power to a switching controller of a switch mode power converter (SMPC), the SMPC having: an inductive component having a winding coupled to receive power from an input to said SMPC; a switching circuit comprising first and second switching transistors, said first transistor coupled in series between said winding and said second transistor; a switching controller to control switching of said second transistor; and a charge store to provide power to said switching controller, the method comprising: flow of current from said winding through said first transistor; and diverting said current through a conduction path to said charge store.
摘要翻译：本发明一般涉及为开关模式功率转换器（SMPC）的开关控制器供电，更具体地说，涉及一种向SMPC的开关控制器提供电力的方法，用于向充电存储器提供充电的充电电路，以提供 SMPC的切换控制器的功率，以及包括这种电路的SMPC。一种向开关模式功率转换器（SMPC）的开关控制器提供电力的方法，所述SMPC具有：具有耦合以从输入到所述SMPC的功率的绕组的电感分量; 开关电路包括第一和第二开关晶体管，所述第一晶体管串联耦合在所述绕组和所述第二晶体管之间; 开关控制器，用于控制所述第二晶体管的开关; 以及电荷存储器，用于向所述开关控制器提供电力，所述方法包括：从所述绕组流过所述第一晶体管的电流; 并将所述电流通过导电路径转移到所述电荷存储器。

3. 发明申请

US20170179810A1 STORAGE TIME CONTROL 审中-公开
公开(公告)号：US20170179810A1
公开(公告)日：2017-06-22
申请号：US15451235
申请日：2017-03-06
申请人： Power Integrations, Inc.
发明人： Paul Ryan , Johan Piper
IPC分类号： H02M1/08
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/156 , H02M2001/0009 , H02M2001/0054 , H03K17/04213 , Y02B70/1491
摘要： A controller for use in a power converter includes a first terminal to provide a turn on signal to initiate turning on of a power switch and a second terminal to provide a turn off signal to initiate turning off the power switch. A detection circuit is coupled to detect a turn off time delay. The turn off time delay is the duration of time between an initiating of a turn off of the power switch by the turn off signal and an actual turn off of the power switch. A control circuit is coupled to control the turn on signal to regulate the turn off delay time to a target time value. The control circuit controls the turn on signal by controlling an amount of charge delivered to turn on the power switch.

4. 发明授权

US10063152B2 Storage time control 有权
公开(公告)号：US10063152B2
公开(公告)日：2018-08-28
申请号：US15451235
申请日：2017-03-06
申请人： Power Integrations, Inc.
发明人： Paul Ryan , Johan Piper
IPC分类号： H02M3/335 , H02M3/156 , H02M1/08 , H02M1/00 , H03K17/042
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/156 , H02M2001/0009 , H02M2001/0054 , H03K17/04213 , Y02B70/1491
摘要： A controller for use in a power converter includes a first terminal to provide a turn on signal to initiate turning on of a power switch and a second terminal to provide a turn off signal to initiate turning off the power switch. A detection circuit is coupled to detect a turn off time delay. The turn off time delay is the duration of time between an initiating of a turn off of the power switch by the turn off signal and an actual turn off of the power switch. A control circuit is coupled to control the turn on signal to regulate the turn off delay time to a target time value. The control circuit controls the turn on signal by controlling an amount of charge delivered to turn on the power switch.

5. 发明授权

US09621050B2 Storage time control 有权
公开(公告)号：US09621050B2
公开(公告)日：2017-04-11
申请号：US14283857
申请日：2014-05-21
申请人： Power Integrations, Inc.
发明人： Paul Ryan , Johan Piper
IPC分类号： H02M3/335 , H02M3/156 , H02M1/00 , H03K17/042
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/156 , H02M2001/0009 , H02M2001/0054 , H03K17/04213 , Y02B70/1491
摘要： A switch mode power converter (SMPC) includes a switching control system to control the turn off time delay of a switching device. The SMPC also has an inductive component including an input winding to receive power from an input and a switching device to conduct input winding current. The switching control system applies turn on and turn off signals to the switching device. The turn off signal initiates turning off of the switching device and a sensing signal from a further winding inductively coupled to the input winding is detected to indicate an end of a turn off time delay or duration. The turn on signal for a subsequent switching cycle of the SMPC device is controlled to regulate the turn off delay time.

6. 发明申请

US20170063214A1 AUXILIARY RECHARGE 审中-公开
标题翻译：辅助物资
公开(公告)号：US20170063214A1
公开(公告)日：2017-03-02
申请号：US15349367
申请日：2016-11-11
申请人： Power Integrations, Inc.
发明人： Paul Ryan , Johan Piper
IPC分类号： H02M1/08 , H02J7/00 , H02M7/539
摘要： A charging circuit supplies charge to a charge store to provide power to a controller of a power converter. The power converter includes an inductive component having a winding coupled to receive power from an input to the power converter. A switching circuit includes a field effect transistor (FET) and a switching element. The FET is coupled in series between the winding and the switching element. A controller is coupled to control the switching of the switching element, and a charge store is coupled to provide power to the controller. The charging circuit includes a current diversion circuit coupled to conduct a winding current from the FET to the charge store. The switching element is arranged to allow the winding current to flow through the current diversion circuit to the charge store.
摘要翻译：充电电路向电荷存储器提供电荷以向功率转换器的控制器提供电力。功率转换器包括具有耦合以从输入到功率转换器的功率的绕组的电感元件。开关电路包括场效应晶体管（FET）和开关元件。所述FET串联在所述绕组和所述开关元件之间。耦合控制器以控制开关元件的切换，并且电荷存储器被耦合以向控制器提供电力。充电电路包括电流分流电路，其耦合以将来自FET的绕组电流传导到电荷存储器。开关元件被布置成允许绕组电流流过电流引流电路到电荷存储器。

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