公开(公告)号：EP2445098A1

公开(公告)日：2012-04-25

申请号：EP11186057.3

申请日：2011-10-21

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio

IPC: H02M3/337

CPC classification number: H02M3/3372 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A control device (30) is described of a switching circuit (Q1, Q2) of a resonant converter (1) having an output direct current (Iout); said switching circuit (Q1, Q2) comprising at least a half-bridge of at least a first (Q1) and a second (Q2) transistor connected between an input voltage (Vin) and a reference voltage (GND). The half-bridge is adapted to generate a periodic square-wave voltage for driving the resonant circuit (300) of said resonant circuit and the periodic square-wave voltage oscillates between a high voltage corresponding to the input voltage and a low voltage corresponding to the reference voltage. Said control device (30) comprises generating means (6) adapted to generate a periodic square-wave signal (Vpwm) for driving the half-bridge. Said control device (30) comprises measuring means (200) adapted to measure the phase-shifting (Φ, V Φ ) between said periodic square-wave signal (Vpwm) generated by the generating means (6) and the current (Is) flowing through the resonant circuit, and adapted to control the turning off of the half-bridge when the phase-shifting exceeds a first phase-shifting value (Vth, Φ th ). ( Fig. 2 )

Abstract translation: 描述具有输出直流电流（Iout）的谐振转换器（1）的开关电路（Q1，Q2）的控制装置（30）; 所述开关电路（Q1，Q2）至少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）晶体管的半桥。 半桥适于产生用于驱动所述谐振电路的谐振电路（300）的周期性方波电压，并且周期性方波电压在对应于输入电压的高电压和对应于 参考电压。 所述控制装置（30）包括适于产生用于驱动半桥的周期性方波信号（Vpwm）的产生装置（6）。 所述控制装置（30）包括测量装置（200），其适于测量由所述生成装置（6）生成的所述周期性方波信号（Vpwm）与流过所述生成装置（6）的电流（Is）之间的相移（Φ，VΦ） 所述谐振电路并且适于在所述相移超过第一相移值（Vth，Φth）时控制所述半桥的所述关断。 （图2）

公开(公告)号：EP2302776A1

公开(公告)日：2011-03-30

申请号：EP10179241.4

申请日：2010-09-24

Applicant: STMicroelectronics S.r.l.

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.

Abstract translation: 描述了包括第一（M1）和第二（M2）晶体管的晶体管（M1，M2）的半桥电路的中点电压（Va）的检测装置; 半桥连接在电源（Vcc）和参考电压（GND）之间，适用于驱动负载（LOAD）。 驱动第一和第二晶体管，使得所述中点电压（Va）经历从低电压值（LW）到高电压值（HW）的转变，反之亦然; 该电路包括一个自举电容器（Cboot），其具有连接到中点节点的一个端子，而另一个端子连接到所述自举电容器的电源电路（15）。 检测装置包括适于连接在自举电容器的所述另一端和电路装置（12，Cpump）之间的另外的电容器（Cgd），电路装置适于形成用于在所述另外的电路中循环的电流信号（Isink，Isource）的低阻抗节点 在从低值到高电平的转变期间的电容器（Cgd）和从中间点电压（Va）的高值转换到低电平。 该装置包括检测装置（10），其适于检测在所述另外的电容器中循环的所述电流信号，并且适于至少输出一个第一信号（HL_comm，LH_comm），该第一信号指示从低值到高值或从高值到 根据所述电流信号的中点电压的低值。

公开(公告)号：EP1580639B1

公开(公告)日：2008-05-14

申请号：EP04425199.9

申请日：2004-03-22

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio ,  Moriconi, Ugo

IPC: G05F1/70 ,  H02M1/42

CPC classification number: G05F1/70 ,  H02M1/4225 ,  Y02B70/126

公开(公告)号：EP1580638B1

公开(公告)日：2008-05-14

申请号：EP04425198.1

申请日：2004-03-22

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio

IPC: G05F1/70 ,  H02M1/42

CPC classification number: G05F1/70 ,  H02M1/12 ,  H02M1/4225 ,  Y02B70/126

公开(公告)号：EP1469581B1

公开(公告)日：2006-01-25

申请号：EP03425232.0

申请日：2003-04-14

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio ,  Fagnani, Mauro

IPC: H02M1/00 ,  H02M3/335

CPC classification number: H02M1/36 ,  Y10S323/901

公开(公告)号：EP1580638A1

公开(公告)日：2005-09-28

申请号：EP04425198.1

申请日：2004-03-22

Applicant: STMicroelectronics S.r.l.

Inventor： Adragna, Claudio

IPC: G05F1/70 ,  H02M1/12

CPC classification number: G05F1/70 ,  H02M1/12 ,  H02M1/4225 ,  Y02B70/126

Abstract: A transition mode operating device for the correction of the power factor in switching power supply units is described. Said device comprises a converter (20) and a control device (101) coupled to the converter (20) for obtaining from an input network alternated voltage (Vin) a regulated voltage (Vout) at the output terminal. The converter (20) comprises a power transistor (M), a circuit (2) adapted to rectifier said network voltage, an inductor arranged between the rectifier circuit (2) and a non drivable terminal of said power transistor (M), said device for the correction of the power factor comprising an auxiliary winding (L1) of the inductor. The control device (101) comprises first means (3) having in input a first signal (Vr) proportional to said regulated voltage (Vout) and a reference signal (Vref) and being adapted to generate an error signal (Se), a multiplier (4) having in input said error signal (Se) and a driving circuit (70) having in input at least a second signal in output from the multiplier (4) and being adapted to determine the on time period (Ton) and the off time period (Toff) of the power transistor (M). The control device (101) comprises second means (50) connected with said auxiliary winding (L1) of the inductor and adapted to generate at least a third signal (Vm) proportional to the network voltage (Vin) during the on time of said power transistor (M) and at least a fourth signal (Vint) representative of the current flowing through said power transistor (M); said third signal (Vm) is in input to said multiplier (4) for generating the second signal (Vc) and said fourth signal (Vint) is in input to said driving circuit (70).

Abstract translation: 描述用于校正开关电源单元中的功率因数的过渡模式操作装置。 所述设备包括耦合到转换器（20）的转换器（20）和控制设备（101），用于从输入网络交替电压（Vin）获得输出端子处的经调节电压（Vout）。 该转换器（20）包括功率晶体管（M），适用于整流所述网络电压的电路（2），布置在整流器电路（2）和所述功率晶体管（M）的不可驱动端子之间的电感器，所述设备 用于校正包括电感器的辅助绕组（L1）的功率因数。 控制装置（101）包括第一装置（3）和第二装置（3），第一装置（3）具有与所述调节电压（Vout）和参考信号（Vref）成比例并适于产生误差信号（Se）的第一信号（Vr） （4）具有输入所述误差信号（Se）和驱动电路（70），所述驱动电路（70）具有输入从所述乘法器（4）输出的至少第二信号并且适于确定所述接通时间段（Ton）和所述关断 功率晶体管（M）的时间周期（Toff）。 控制装置（101）包括与电感器的所述辅助绕组（L1）连接的第二装置（50），适于在所述功率的接通时间内产生与网络电压（Vin）成比例的至少第三信号（Vm） 晶体管（M）和代表流过所述功率晶体管（M）的电流的至少第四信号（Vint）; 所述第三信号（Vm）输入到所述乘法器（4）以产生第二信号（Vc）并且所述第四信号（Vint）输入到所述驱动电路（70）。

公开(公告)号：EP0871328B1

公开(公告)日：2003-08-13

申请号：EP97830164.6

申请日：1997-04-09

Applicant: STMicroelectronics S.r.l.

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

IPC: H04N3/185 ,  H02M3/335

CPC classification number: H04N3/185 ,  H02M3/33523

公开(公告)号：EP1178591A1

公开(公告)日：2002-02-06

申请号：EP00830547.6

申请日：2000-07-31

Applicant: STMicroelectronics S.r.l.

Inventor： Bontempo, Gregorio ,  Adragna, Claudio ,  Fagnani, Mauro ,  Pidutti, Albino ,  Pulvirenti, Francesco ,  Quaglino, Roberto ,  Gattavari, Giuseppe

IPC: H02M3/28

CPC classification number: H02M3/28 ,  H02M1/32 ,  H02M3/33523

Abstract: The power supply device comprises a DC-DC converter circuit (8) including a power switch (10) and a driving stage (102). The driving stage (102) has a compensation terminal (102b) on which a compensation voltage (V COMP ) is present and which receives a biasing current (I P ), said driving stage (102) comprising a control circuit (107) having an output terminal connected to a control terminal (11) of the power switch (10) and disconnection-detecting means (105) connected to said compensation terminal (102b) and generating a signal for permanent turning-off of said power switch (10) when the biasing current (I P ) drops below a current-threshold value (I T ). The driving stage (102) moreover comprises over-voltage detecting means (104) connected to the compensation terminal (102b) and generating a signal for temporary turning-off of said power switch (10) when said compensation voltage (V COMP ) exceeds a voltage-threshold value (V T ).

Abstract translation: 电源装置包括包括电源开关（10）和驱动级（102）的DC-DC转换器电路（8）。 驱动级（102）具有在其上存在补偿电压（VCOMP）并且接收偏置电流（IP）的补偿端子（102b），所述驱动级（102）包括具有输出端子 连接到所述电源开关（10）的控制端子（11）和连接到所述补偿端子（102b）的断开检测装置（105），并且当所述偏置 当前（IP）下降到当前阈值（IT）以下。 驱动级（102）还包括连接到补偿端子（102b）的过电压检测装置（104），并且当所述补偿电压（VCOMP）超过电压时产生用于暂时关断所述电源开关（10）的信号 - 阈值（VT）。

公开(公告)号：EP1176705A1

公开(公告)日：2002-01-30

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

Abstract: A converter directly connectable to the mains comprises a rectifier stage of the network voltage, a power factor correction pre-regulating circuit supplied with the rectified network voltage and producing a DC voltage of a certain nominal value, a DC-DC converter supplied with the DC voltage of a certain nominal value and producing a pre-established DC voltage on an output node, sensing means producing a signal representative of the current level of load being supplied by the converter.
The power consumption of the converter is lowered by a control circuit fed with the signal representative of the level of load that generates a disabling signal of the power factor corrector pre-regulating circuit as long as the level of load does not exceed a certain pre-established threshold.

Abstract translation: A转换器可直接连接到市电电源包括所述网络电压的整流器级，与所述整流网络电压并产生某标称值的直流电压提供一个功率因数校正预调节电路，一个DC-DC转换器提供与所述DC 某标称值的电压，并在输出节点上生产预先建立直流电压，感测装置产生代表负载的电流电平的信号通过转换器被供给。 该转换器的功率消耗是通过用代表负载的电平的信号馈送的控制电路降低没基因率所述功率因数校正的禁止信号预调节电路只要负载大小限制某预水平 建立门槛。