公开(公告)号：EP1134881B1

公开(公告)日：2006-01-04

申请号：EP00830202.8

申请日：2000-03-17

Applicant: STMicroelectronics S.r.l.

Inventor： Gattavari, Giuseppe ,  Adragna, Claudio ,  Fagnani, Mauro

IPC: H02M3/335

CPC classification number: H02M3/335 ,  Y10S323/901

公开(公告)号：EP1469581A1

公开(公告)日：2004-10-20

申请号：EP03425232.0

申请日：2003-04-14

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio ,  Favagni, Mauro

IPC: H02M1/00 ,  H02M3/335

CPC classification number: H02M1/36 ,  Y10S323/901

Abstract: The present invention refers to the switching power supply and particularly to the integrated circuits used for the control of such power supplies. It refers more particularly to a control circuit of the minimum working voltage of the integrated control circuits of such power supplies.
In one embodiment the control circuit of the minimum working voltage of the integrated control circuit of a switching power supply having a supply voltage (Vcc); characterized in that said minimum working voltage can assume a first voltage value (Vstop1) and a second voltage value (Vstop2); said first voltage value (Vstop1) is higher than said second voltage value (Vstop2); said minimum working voltage switches from said first voltage value (Vstop1) to said second voltage value (Vstop2) in case of low or null load of said switching power supply; said minimum working voltage switches from said second voltage value (Vstop2) to said first voltage value (Vstop1) if the load is higher than a prefixed load of said switching power supply and at the same time said supply voltage (Vcc) is higher than said first voltage value (Vstop1).

Abstract translation: 本发明涉及开关电源，特别涉及用于控制这种电源的集成电路。 更具体地，涉及这种电源的集成控制电路的最小工作电压的控制电路。 在一个实施例中，具有电源电压（Vcc）的开关电源的集成控制电路的最小工作电压的控制电路; 其特征在于，所述最小工作电压可以采用第一电压值（Vstop1）和第二电压值（Vstop2）; 所述第一电压值（Vstop1）高于所述第二电压值（Vstop2）; 所述最小工作电压在所述开关电源的低负载或零负载的情况下从所述第一电压值（Vstop1）切换到所述第二电压值（Vstop2）; 如果负载高于所述开关电源的预定负载，则所述最小工作电压从所述第二电压值（Vstop2）切换到所述第一电压值（Vstop1），并且同时所述电源电压（Vcc）高于所述 第一电压值（Vstop1）。

公开(公告)号：EP1387477A1

公开(公告)日：2004-02-04

申请号：EP02425510.1

申请日：2002-08-01

Applicant: STMicroelectronics S.r.l.

Inventor： Fagnani, Mauro ,  Pidutti, Albino ,  Adragna, Claudio

IPC: H02M1/12

CPC classification number: H02M1/4225 ,  Y02B70/126

Abstract: A device for the correction of the power factor in power supply units with forced switching operating in transition mode is described. The device comprises a converter (20) and a control device (100) coupled to said converter so as to obtain from an alternating network input voltage (Vin) a regulated output voltage (Vout) on the output terminal. The converter (20) comprises a power transistor (M) and the control device (100) comprises a pilot circuit (51) suitable for determining the period of switched-on time (Ton) and the period of switched-off time (Toff) of said power transistor (M) and control means (50) coupled to said pilot circuits (51) and with said converter and which are capable of prolonging said period of switched-on time (Ton) of the power transistor (M) at the instants of time in which the alternating network voltage (Vin) substantially assumes the value zero.

Abstract translation: 描述用于在转换模式下强制切换操作的电源单元中功率因数校正的装置。 该装置包括转换器（20）和耦合到所述转换器的控制装置（100），以便从输出端子上的交变网络输入电压（Vin）获得稳定的输出电压（Vout）。 转换器（20）包括功率晶体管（M），并且控制装置（100）包括适于确定接通时间（Ton）的周期和关断时间（Toff）的周期的导频电路（51） 所述功率晶体管（M）和与所述导频电路（51）和所述转换器耦合的所述功率晶体管（M）和控制装置（50）能够延长所述功率晶体管（M）的所述接通时间（Ton） 交变网络电压（Vin）基本上呈现零值的时刻。

公开(公告)号：EP2309632A1

公开(公告)日：2011-04-13

申请号：EP10186873.5

申请日：2010-10-07

Applicant: STMicroelectronics S.r.l.

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).

Abstract translation: 描述了在输出端（Iout）具有直流电的谐振变换器（1）的开关电路（200）的控制装置（100）。 开关电路（200）包括连接在输入电压（Vin）和参考电压（GND）之间的至少第一（Q1）和第二（Q2）晶体管的至少一个半桥。 所述半桥适于产生周期性方波电压以驱动所述谐振转换器的谐振电路（300）; 周期性方波电压的范围从对应于输入电压的高电压到对应于参考电压的低电压。 控制装置（100）适于根据电容器（Ct）的充电或放电的时间周期来控制所述半桥，并且包括适于使放电时间段的起始时刻（Tstart）同步的电路装置（101） 或者对与表示在谐振电路（300）中流动的电流（Is）的信号（Vs）的零值相交的电容器（Ct）进行充电，以及适于控制第一（Q1）的开关的装置（102,103） ）或第二（Q2）晶体管，在电容器（Ct）放电或充电的时间段结束时。

公开(公告)号：EP1793484B1

公开(公告)日：2010-02-24

申请号：EP05425865.2

申请日：2005-12-02

Applicant: STMicroelectronics S.r.l.

Inventor： Cannella, Eliana ,  Adragna, Claudio ,  Marino, Filippo ,  Tumminaro, Salvatore

IPC: H02M1/38 ,  H02M3/337

CPC classification number: H02M1/38 ,  H02M3/3376

公开(公告)号：EP1793484A1

公开(公告)日：2007-06-06

申请号：EP05425865.2

申请日：2005-12-02

Applicant: STMicroelectronics S.r.l.

Inventor： Cannella, Eliana ,  Adragna, Claudio ,  Marino, Filippo ,  Tumminaro, Salvatore

IPC: H02M1/088 ,  H02M1/00

CPC classification number: H02M1/38 ,  H02M3/3376

Abstract: Described herein is a device for driving a converter circuit that supplies a charge via a first electronic switch (LS) and a second electronic switch (HS) alternately turned on and off, with a first dead-time interval between turning-off of the first electronic switch and turning-on of the second electronic switch (HS) and a second dead-time interval between turning-off of the second electronic switch (HS) and turning-on of the first electronic switch. Turning-off of the second electronic switch (HS) is controlled as a function of a feedback signal (F) coming from the load (L). The device comprises:
- a generator module (11a, C) for generating a memory signal (V c ), indicating the duration of the first dead-time interval; and
- a delay module (11b, C, 14, 18, 20), sensitive to said memory signal (V c ) for controlling turning-on of the first electronic switch with a delay, with respect to turning-off of the second electronic switch (HS), identified by the aforesaid memory signal (V C ), so that the second dead-time interval has a duration substantially equal to the duration of the first dead-time interval.

Abstract translation: 这里描述的是用于驱动经由第一电子开关（LS）和第二电子开关（HS）交替打开和关闭的电荷的转换器电路的装置，其中第一 电子开关和第二电子开关（HS）的接通以及第二电子开关（HS）的断开和第一电子开关的接通之间的第二死区间隔。 作为来自负载（L）的反馈信号（F）的函数控制第二电子开关（HS）的断开。 该装置包括： - 发生器模块（11a，C），用于产生指示第一死区时间间隔的持续时间的存储信号（V c）; 以及 - 延迟模块（11b，C，14,18,20），对于所述存储器信号（V c）敏感，用于相对于所述第二电子装置的关断而延迟地控制所述第一电子开关的接通 开关（HS），由上述存储信号（VC）识别，使得第二死区间隔的持续时间基本上等于第一死区间隔的持续时间。

公开(公告)号：EP1650857A2

公开(公告)日：2006-04-26

申请号：EP05109431.6

申请日：2005-10-11

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio ,  Fagnani, Mauro ,  Gattavari, Giuseppe

IPC: H02M1/12 ,  H02M7/217

CPC classification number: H02M1/4225 ,  H02M2001/0022 ,  H02M2001/0025 ,  Y02B70/126

Abstract: The present invention describes is a device for power factor correction in forced switching power supply unit, comprising a converter (20) and a control device (100) coupled with the converter (20) so as to obtain from an input alternating mains voltage (Vin) a direct regulated voltage (Vout) on the output terminal. The converter (20) comprises a power transistor (M) and the control device (100) comprises an error amplifier (3) having in input on the inverting terminal a first signal (Vr) proportional to the regulated voltage (Vout) and on the non-inverting terminal a reference voltage (Vref), a drive circuit (4-7, 10) of the power transistor (M) coupled with the output terminal of the error amplifier (3). The control device (100) comprises means (42, Cff, 101, Rt, 102) suitable for generating a current signal (It) representative of the effective input voltage; said current signal (It) is in input on the inverting terminal of said error amplifier (3) to vary said regulated voltage (Vout) in reply to variations of the effective input voltage.

Abstract translation: 本发明描述了一种用于强制开关电源单元中的功率因数校正的装置，包括与转换器（20）耦合的转换器（20）和控制装置（100），以从输入交流电源电压（Vin ）输出端子上的直接调节电压（Vout）。 转换器（20）包括功率晶体管（M），并且控制装置（100）包括误差放大器（3），其在反相端子上具有与调节电压（Vout）成比例的第一信号（Vr） 非反相端子参考电压（Vref），功率晶体管（M）的驱动电路（4-7,10）与误差放大器（3）的输出端耦合。 控制装置（100）包括适于产生代表有效输入电压的电流信号（It）的装置（42，Cff，101，Rt，102） 所述电流信号（It）在所述误差放大器（3）的反相端上输入，以响应于有效输入电压的变化来改变所述调节电压（Vout）。

公开(公告)号：EP1178592B1

公开(公告)日：2004-09-29

申请号：EP00830502.1

申请日：2000-07-18

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio ,  Spini, Claudio

IPC: H02M3/335

CPC classification number: H02M1/36 ,  Y10S323/901

公开(公告)号：EP1176705B1

公开(公告)日：2003-07-09

申请号：EP00830540.1

申请日：2000-07-28

Applicant: STMicroelectronics S.r.l.

Inventor： Gattavari, Giuseppe ,  Adragna, Claudio

IPC: H02M1/00

CPC classification number: H02M1/4225 ,  H02J2009/007 ,  H02M2001/0032 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/16 ,  Y02P80/112

公开(公告)号：EP2509205A1

公开(公告)日：2012-10-10

申请号：EP12162990.1

申请日：2012-04-03

Applicant: STMicroelectronics S.r.l.

Inventor： De Simone, Silvio ,  Adragna, Claudio

IPC: H02M3/338 ,  H02M1/44

CPC classification number: H02M3/3381 ,  H02M1/44 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A control device for a QR switching power converter is described; said power converter is adapted to convert an input signal (Vin) to a DC output signal (Vout) and comprises a power switch (Q1) connected to said input signal and adapted to regulate said DC output signal and magnetic storage means (1). The control device is able to determine the switching frequency of the power switch (Q1) and it is supplied by a feedback signal (Vf) deriving from a feedback circuit (12, 11) coupled to the output signal (Vout) of the power converter; said control device performs a control loop regulating the DC output signal (Vout) by controlling a control variable (Ton, Ipkp). The control device comprises modulating means (100) adapted to modulate said control variable (Ton, Ipkp) as a function of at least one modulating signal (Smod; Smodl...Smodn) having a frequency higher than the control loop bandwidth.

Abstract translation: 用于QR开关功率转换器的控制装置进行说明; 所述功率转换器是angepasst对输入信号（Vin）转换为DC输出信号（Vout），并且包括连接至所述输入信号和angepasst电源开关（Q1），以调节所述DC输出信号和磁存储装置（1）。 所述控制装置能够确定的矿井功率开关（Q1）的开关频率，它是由从耦合到所述功率转换器的输出信号（Vout）的反馈电路（12，11）导出的反馈信号（VF）SUPPLIED ; 所述控制设备执行的控制环路调节通过控制的控制变量（声音，Ipkp）直流输出信号（Vout）。 该控制装置包括调制装置（100）angepasst来调制所述控制变量（声音，Ipkp），为至少一个调制信号（S MOD; Smodl ... Smodn）的函数具有比控制回路带宽高的频率。