公开(公告)号：EP2204898A1

公开(公告)日：2010-07-07

申请号：EP09180212.4

申请日：2009-12-21

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio

IPC: H02M1/42 ,  H02M3/337 ,  H05B33/08

CPC classification number: H02M1/4225 ,  H02M1/44 ,  H02M3/3376 ,  H02M2001/007 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/347 ,  Y02B70/126 ,  Y02B70/1433

Abstract: A switching power supply (40) for supplying a load requiring a controlled current includes a PFC pre-regulator (45) for receiving an input voltage (V AC ) and providing an output voltage (V IN ), and a DC-DC switching converter (46) for receiving at input the voltage (V IN ) output by the pre-regulator (45) and for providing at output a supply voltage of said load. The switching DC-DC converter (40) operates at a fixed and constant operating frequency, is a resonant converter and includes an LLC resonant circuit.

Abstract translation: 用于提供需要受控电流的负载的开关电源（40）包括用于接收输入电压（V AC）并提供输出电压（V IN）的PFC预调节器（45），以及DC-DC开关转换器 （46），用于在输入端接收由预调节器（45）输出的电压（V IN），并在输出端提供所述负载的电源电压。 开关DC-DC转换器（40）以固定和恒定的工作频率工作，是谐振转换器并且包括LLC谐振电路。

公开(公告)号：EP2445098B1

公开(公告)日：2019-08-07

申请号：EP11186057.3

申请日：2011-10-21

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio

IPC: H02M3/337

公开(公告)号：EP2190109B1

公开(公告)日：2014-09-03

申请号：EP09174016.7

申请日：2009-10-26

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Ilardo, Santo

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

公开(公告)号：EP2339736A1

公开(公告)日：2011-06-29

申请号：EP10197034.1

申请日：2010-12-27

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Novelli, Aldo Vittorio ,  Santoro, Christian Leone

IPC: H02M3/337

CPC classification number: H02M3/3376 ,  Y02B70/1433

Abstract: A control device for a resonant converter is described; the converter comprises a switching circuit (Q1-Q2) adapted to drive a resonant load (Cr, 20). The resonant load comprises at least one transformer (20) with at least a primary winding (L1) and at least a secondary winding (L2) and the converter is adapted to convert an input signal (Vin) into an output signal (Vout); the switching circuit comprises at least a half bridge of first (Q1) and second (Q2) switches and the central point (HB) of said half bridge is connected to said resonant load (Cr, 20). The control device comprises first means (116) adapted to rectify a signal (Vs) representative of the current (Ir) circulating in the primary winding, second means (111) adapted to integrate at least said rectified signal (Vs') and being adapted to generate at least a control signal (HSGD, LSGD) of said switching circuit according to the integrated signal (Vint), third means (FF, CO1, 118, CO2) adapted to send a reset command to said second means so as to inhibit the operation over a time period (Tres) between the instant when said integrated signal reaches or overcomes a first signal (Vc, V2) and the instant of the next zero crossing of the signal (Vs) representative of the current (Ir) circulating in the primary winding. ( Figure 3 )

Abstract translation: 描述了用于谐振转换器的控制装置; 该转换器包括适于驱动谐振负载（Cr，20）的开关电路（Q1-Q2）。 所述谐振负载包括具有至少一个初级绕组（L1）和至少一个次级绕组（L2）的至少一个变压器（20），并且所述转换器适于将输入信号（Vin）转换成输出信号（Vout）; 开关电路至少包括第一（Q1）和第二（Q2）开关的半桥，并且所述半桥的中心点（HB）连接到所述谐振负载（Cr，20）。 控制装置包括适于对表示在初级绕组中循环的电流（Ir）的信号（Vs）进行整流的第一装置（116），适用于至少整合所述整流信号（Vs'）并且被适配的第二装置（111） 以根据积分信号（Vint）产生所述开关电路的至少一个控制信号（HSGD，LSGD）;第三装置（FF，CO1,118，CO2），适于向所述第二装置发送复位命令以便禁止 在所述积分信号达到或克服第一信号（Vc，V2）的瞬间与代表电流（Ir）的信号（Vs）的下一个过零点之间的时间段（Tres） 初级绕组。 （图3）

公开(公告)号：EP2339637A1

公开(公告)日：2011-06-29

申请号：EP10197215.6

申请日：2010-12-28

Applicant: STMicroelectronics Srl

Inventor： Micciché, Monica ,  Grimaldi, Antonio Giuseppe ,  Adragna, Claudio

IPC: H01L29/78 ,  H01L29/417 ,  H01L27/088 ,  H01L21/336 ,  H01L21/8234 ,  H01L29/10 ,  H01L29/40 ,  H01L29/423 ,  H02M3/335

CPC classification number: H01L29/7816 ,  H01L27/088 ,  H01L29/0696 ,  H01L29/1083 ,  H01L29/1095 ,  H01L29/402 ,  H01L29/4175 ,  H01L29/41766 ,  H01L29/4238 ,  H01L29/66681 ,  H02M3/33592 ,  Y02B70/1475

Abstract: An integrated power MOSFET device formed by a substrate (19, 65); an epitaxial layer (13; 68; 80, 81) of N type ; a sinker region (17b) of P type, extending through the epitaxial layer from the top surface and in electrical contact with the substrate; a body region (22), of P type, extending within the sinker region from the top surface; a source region (25), of N type, extending within the body region from the top surface, the source region delimiting a channel region (22a); a gate region (19); a source contact (30), electrically connected to the body region and to the source region; a drain contact (31), electrically connected to the epitaxial layer (13; 81); and a source metallization region (104), extending over the rear surface and electrically connected to the substrate and to the sinker region.

Abstract translation: 由衬底（19,65）形成的集成功率MOSFET器件; N型外延层（13; 68; 80,81）; P型沉降片区域（17b），从顶表面延伸穿过外延层并与衬底电接触; P型的主体区域（22），从所述顶表面延伸到所述沉降片区域内; 源区域（25），其从所述顶表面在所述体区域内延伸，所述源区域限定沟道区域（22a）; 栅极区域（19）; 源极触点（30），电连接到所述主体区域和所述源极区域; 电连接到外延层（13; 81）的漏极接触（31）; 以及源极金属化区域（104），其在所述后表面上延伸并且电连接到所述衬底和所述沉降弧区域。

公开(公告)号：EP2309632B1

公开(公告)日：2013-05-29

申请号：EP10186873.5

申请日：2010-10-07

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio

IPC: H02M3/337 ,  H02M1/08

CPC classification number: H02M3/3376 ,  H02M1/08 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: There is described a control device (100) of a switching circuit (200) for a resonant converter (1) having a direct current at the output (Iout); the switching circuit (200) comprises at least one half bridge of at least first (Q1) and second (Q2) transistors connected between an input voltage (Vin) and a reference voltage (GND). The half bridge is adapted to generate a periodic square wave voltage to drive the resonant circuit (300) of said resonant converter; the periodic square wave voltage ranges from a high voltage corresponding to the input voltage, to a low voltage corresponding to the reference voltage. The control device (100) is adapted to control said half bridge according to the time period of charging or discharging a capacitor (Ct) and comprises circuit means (101) adapted to synchronize the starting time instant (Tstart) of the time period of discharging or charging the capacitor (Ct) crossing the zero value of a signal (Vs) indicating the current (Is) flowing in the resonant circuit (300) and further means (102, 103) adapted to control the switching off of the first (Q1) or second (Q2) transistor at the end of the time period of discharging or charging the capacitor (Ct).

公开(公告)号：EP2302776B1

公开(公告)日：2012-10-31

申请号：EP10179241.4

申请日：2010-09-24

Applicant: STMicroelectronics Srl

Inventor： Santoro, Christian Leone ,  Novelli, Aldo Vittorio ,  Adragna, Claudio

IPC: H02M3/337 ,  H02M1/08 ,  H02M1/38

CPC classification number: H02M3/337 ,  H02M1/083 ,  H02M1/38 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: There is described a detecting device for the midpoint voltage (Va) of a half bridge circuit of transistors (M1, M2) comprising first (M1) and second (M2) transistors; the half bridge is connected between a voltage supply (Vcc) and a reference voltage (GND) and it is adapted to drive a load (LOAD). The first and second transistors are driven so that said midpoint voltage (Va) undergoes transitions from a low voltage value (LW) to a high voltage value (HW) and vice versa; the circuit comprises a bootstrap capacitor (Cboot) having one terminal connected to the midpoint node and the other terminal connected to a supply circuit (15) of said bootstrap capacitor. The detecting device comprises a further capacitor (Cgd) adapted to be connected between said other terminal of the bootstrap capacitor and circuit means (12, Cpump) adapted to form a low impedance node for the current signal (Isink, Isource) circulating in said further capacitor (Cgd) during the transitions from the low value to the high value and from the high value to the low value of the midpoint voltage (Va). The device comprises detecting means (10) adapted to detect said current signal circulating in said further capacitor and adapted to output at least a first signal (HL_comm, LH_comm) indicating the transitions from the low value to the high value or from the high value to the low value of the midpoint voltage according to said current signal.

公开(公告)号：EP2339734A1

公开(公告)日：2011-06-29

申请号：EP10197021.8

申请日：2010-12-27

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Novelli, Aldo Vittorio ,  Santoro, Christian Leone

IPC: H02M3/337

CPC classification number: H02M3/3376 ,  Y02B70/1433

Abstract: A control device for a resonant converter is described; the converter comprises a switching circuit (Q1-Q2) adapted to drive a resonant load (Cr, 20), said resonant load comprising at least one transformer (20) with at least a primary winding (L1) and at least a secondary winding (L2). The converter is adapted to convert an input signal (Vin) into an output signal (Vout) and the switching circuit comprises at least a half bridge of first (Q1) and second (Q2) switches; the central point (HB) of said half bridge is connected to the resonant load. The control device comprises first means (110) adapted to integrate at least one signal (Vs) representative of a half wave of the current (Ir) circulating in the primary winding (L1); said first means are adapted to generate at least a control signal (HSGD, LSGD) of the switching circuit depending on the integrated signal (Vint). The control device comprises second means (120) adapted to set the equality of the switching-on time period (Ton1, Ton2) of said first and second switches. ( Figure 3 )

Abstract translation: 描述了用于谐振转换器的控制装置; 所述转换器包括适于驱动谐振负载（Cr，20）的开关电路（Q1-Q2），所述谐振负载包括至少一个变压器（20），所述变压器至少具有初级绕组（L1）和至少次级绕组 L2）。 转换器适于将输入信号（Vin）转换为输出信号（Vout），并且开关电路包括第一（Q1）和第二（Q2）开关的至少半桥; 所述半桥的中心点（HB）连接到谐振负载。 所述控制装置包括适于集成表示在所述初级绕组（L1）中循环的电流（Ir）的半波的至少一个信号（Vs）的第一装置（110）。 所述第一装置适于根据积分信号（Vint）至少产生开关电路的控制信号（HSGD，LSGD）。 控制装置包括适于设定所述第一和第二开关的接通时间段（Ton1，Ton2）的相等性的第二装置（120）。 （图3）

公开(公告)号：EP2190109A1

公开(公告)日：2010-05-26

申请号：EP09174016.7

申请日：2009-10-26

Applicant: STMicroelectronics Srl

Inventor： Adragna, Claudio ,  Ilardo, Santo

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

Abstract: Control device for a rectifier of a switching converter; the converter is powered by an input voltage and is suitable for providing an output current (Iout). The rectifier (T1, T2) is suitable for rectifying said output current of the converter and comprises at least one transistor (T1); the control device (100, 200, 300) is suitable for driving said at least one transistor. The control device comprises first means (100) suitable for identifying the start and the end of every converter switching half-cycle and measuring the duration thereof, second means (200) suitable for generating a signal (EN-SR) for turning on said transistor after a given number (n) of measured converter switching half-cycles and when the output current (Iout) of the converter becomes greater than a reference current (Iref). ( Fig. 3 )

Abstract translation: 开关变换器整流器的控制装置; 转换器由输入电压供电，适用于提供输出电流（Iout）。 整流器（T1，T2）适于整流转换器的所述输出电流，并且包括至少一个晶体管（T1）; 控制装置（100,200,300）适于驱动所述至少一个晶体管。 控制装置包括适于识别每个转换器切换半周期的开始和结束并测量其持续时间的第一装置（100），适于产生用于导通所述晶体管的信号（EN-SR）的第二装置（200） 在给定数量（n）个测量的转换器切换半周期之后以及当转换器的输出电流（Iout）变得大于参考电流（Iref）时）。 （图3）

公开(公告)号：EP2205048A1

公开(公告)日：2010-07-07

申请号：EP09180968.1

申请日：2009-12-30

Applicant: STMicroelectronics Srl

Inventor： Pidutti, Albino ,  Beria, Stefano ,  Adragna, Claudio

IPC: H05B41/282 ,  H05B41/285 ,  H05B41/298 ,  H02M1/32

CPC classification number: H05B41/2828 ,  H02M1/32 ,  H02M1/36 ,  H02M1/38 ,  H05B41/2856 ,  H05B41/2986

Abstract: A solution is proposed for controlling a resonant switching system (110), which includes a first switch (Ml) and a second switch (Mh) in a half-bridge configuration for driving a resonant load (L,105,C1). A corresponding control system (115) includes command means (405-410,4151,415h) for switching on and switching off the switches alternatively according to a working frequency of the switching system. In a solution according to an embodiment of the invention, the control system includes detection means (420-430) for detecting a zeroing (tz) of a working current (I(L)) being supplied by the switching system to the resonant load in a temporal observation window (Tm); the observation window follows each switching off of at least one of the switches (Ml), and has a length equal to a fraction of a working period of the switching system. Correction means (435;535) are then provided for modifying the working frequency in response to each detection of the zeroing in the observation window.

Abstract translation: 提出了一种用于控制谐振开关系统（110）的解决方案，其包括用于驱动谐振负载（L，105，C1）的半桥配置的第一开关（M1）和第二开关（Mh）。 相应的控制系统（115）包括根据切换系统的工作频率交替切换开关的命令装置（405-410,4151,415h）。 在根据本发明的实施例的解决方案中，控制系统包括检测装置（420-430），用于检测由开关系统提供给谐振负载的工作电流（I（L））的归零（tz） 时间观察窗（Tm）; 观察窗口跟随至少一个开关（M1）的每个关闭，并且具有等于开关系统的工作周期的一小部分的长度。 然后提供校正装置（435; 535），用于响应于每次检测观察窗中的归零而修改工作频率。