公开(公告)号：EP1746712A1

公开(公告)日：2007-01-24

申请号：EP05425515.3

申请日：2005-07-19

Applicant: STMicroelectronics S.r.l.

Inventor： Marino, Filippo ,  Minieri, Marco ,  Di Blasi, Giuseppe Maria ,  Boscaino, Valeria

IPC: H02M3/157

CPC classification number: H02M3/157

Abstract: The control circuit for a DC/DC converter (11) has a linear-control loop (12, 14, 15), which receives a quantity to be controlled (V 0 ) and a first reference quantity (V r1 ), and generates a modulation value (DC1). A nonlinear modulation unit (13, 18-21) is activated in presence of a variation of the quantity to be controlled (V 0 ) higher than a preset intervention threshold (Vth1) and modifies in a nonlinear way the reference quantity supplied to the linear-control loop. In the case of large variation and of preset sign of the quantity to be controlled, the linear-control loop is deactivated, a signal for switching-off of the DC/DC converter (11) is initially generated, and then a false steady-state-modulation value (DC2) is supplied to the DC/DC converter.

Abstract translation: 用于DC / DC转换器（11）的控制电路具有接收待控制量（V 0）和第一参考量（V r1）的线性控制回路（12,14,15），并产生 调制值（DC1）。 存在要控制的量（V 0）高于预设介入阈值（Vth1）的变化的非线性调制单元（13,18-21）被激活，并以非线性方式修改提供给线性的参考量 控制循环。 在大的变化和要控制的量的预设符号的情况下，线性控制回路被去激活，最初产生用于DC / DC转换器（11）关断的信号，然后， 状态调制值（DC2）被提供给DC / DC转换器。

公开(公告)号：EP1650858A3

公开(公告)日：2008-08-06

申请号：EP05109287.2

申请日：2005-10-06

Applicant: STMicroelectronics S.r.l.

Inventor： Marino, Filippo ,  Minieri, Marco ,  Di Blasi, Giuseppe Maria ,  Genco Russo, Giovanni

IPC: H02M3/158

CPC classification number: H02M3/1584 ,  H02M3/155 ,  H02M3/156 ,  H02M3/158

Abstract: Herein described is a DC/DC converter comprising at least one first switch means (MH; MH1, MH2; MB1) coupled to an input voltage (Vdd) and to a reference voltage (GND). The first switch means is suitable for driving a load (LOAD) connected to the output terminal of the DC/DC converter and the latter comprises at least one inductor (L; L1, L2) having an intrinsic resistance (Rl; R11, Rl2) and being connected to a terminal (A; A1, A2) of the first switch means (MH; MH1, MH2; MB1) and at least one control circuit (1; 10) suitable for generating at least one driving signal (Vgl, Vg2; Vgh1, Vgl1, Vgh2, Vgl2) of the first switch means (MH; MH1, MH2; MB1) at a required switching pulsation (ω). The control circuit (1; 10) has an input terminal connected to the output terminal of the DC/DC converter. The latter comprises at least one series of a resistance (Rs) and a capacitor (Cs) connected between the terminal in common (A; A1,A2) of the first switch means MH; MH1, MH2; MB1) and the reference voltage (GND); the inverse of the product of the resistance (Rs) and of the capacitor (Cs) is lower than the switching pulsation (ω) and higher than the ratio of the intrinsic resistance (R1; R11, R12) of the inductor on the same inductor (L; L1, L2). The control circuit (1; 10) has a further input terminal connected with the terminal in common of the capacitor (Cs) and of the resistance (Rs) of the series.

公开(公告)号：EP1650858A2

公开(公告)日：2006-04-26

申请号：EP05109287.2

申请日：2005-10-06

Applicant: STMicroelectronics S.r.l.

Inventor： Marino, Filippo ,  Minieri, Marco ,  Di Blasi, Giuseppe Maria ,  Genco Russo, Giovanni

IPC: H02M3/158

CPC classification number: H02M3/1584 ,  H02M3/155 ,  H02M3/156 ,  H02M3/158

Abstract: Herein described is a DC/DC converter comprising at least one first switch means (MH; MH1, MH2; MB1) coupled to an input voltage (Vdd) and to a reference voltage (GND). The first switch means is suitable for driving a load (LOAD) connected to the output terminal of the DC/DC converter and the latter comprises at least one inductor (L; L1, L2) having an intrinsic resistance (Rl; R11, Rl2) and being connected to a terminal (A; A1, A2) of the first switch means (MH; MH1, MH2; MB1) and at least one control circuit (1; 10) suitable for generating at least one driving signal (Vgl, Vg2; Vgh1, Vgl1, Vgh2, Vgl2) of the first switch means (MH; MH1, MH2; MB1) at a required switching pulsation (ω). The control circuit (1; 10) has an input terminal connected to the output terminal of the DC/DC converter. The latter comprises at least one series of a resistance (Rs) and a capacitor (Cs) connected between the terminal in common (A; A1,A2) of the first switch means MH; MH1, MH2; MB1) and the reference voltage (GND); the inverse of the product of the resistance (Rs) and of the capacitor (Cs) is lower than the switching pulsation (ω) and higher than the ratio of the intrinsic resistance (R1; R11, R12) of the inductor on the same inductor (L; L1, L2). The control circuit (1; 10) has a further input terminal connected with the terminal in common of the capacitor (Cs) and of the resistance (Rs) of the series.

Abstract translation: 这里描述的是包括耦合到输入电压（Vdd）和参考电压（GND）的至少一个第一开关装置（MH; MH1，MH2; MB1）的DC / DC转换器。 第一开关装置适于驱动连接到DC / DC转换器的输出端的负载（LOAD），后者包括具有固有电阻（R1; R11，R12）的至少一个电感器（L; L1，L2） 并且连接到第一开关装置（MH; MH1，MH2; MB1）的端子（A; A1，A2）和适于产生至少一个驱动信号（Vgl，Vg2）的至少一个控制电路（1; 10） ;Γ），所述第一开关装置（MH; MH1，MH2; MB1）处于所需的开关脉动（É）的第一开关装置（Vgh1，Vgl1，Vgh2，Vgl2）。 控制电路（1; 10）具有连接到DC / DC转换器的输出端的输入端。 后者包括连接在第一开关装置MH的公共端子（A; A1，A2）中的至少一个电阻（Rs）和电容器（Cs）; MH1，MH2; MB1）和参考电压（GND）; 电阻（Rs）和电容器（Cs）的乘积的倒数低于开关脉动（É），并且高于电感器在同一电感器上的固有电阻（R1; R11，R12）的比值 （L; L1，L2）。 控制电路（1; 10）具有与电容器（Cs）和串联电阻（Rs）共同的端子的另一个输入端子。

公开(公告)号：EP1406372A1

公开(公告)日：2004-04-07

申请号：EP02425595.2

申请日：2002-10-01

Applicant: STMicroelectronics S.r.l.

Inventor： Marino, Filippo ,  Minieri, Marco ,  Costanza, Pietro

IPC: H02M3/157

CPC classification number: H02M3/157

Abstract: A digital control apparatus for a switching DC-DC converter (4) is described. The converter (4) comprises at least one power transistor (M) and is able to provide a regulated output voltage (Vout) on a load (LOAD). The apparatus comprises control digital means (1) having in input a reference digital signal (Vref) and being able to provide a modulating signal (Vc) to a PWM device (3; 9); the PWM device (3, 9) has in input the modulating signal (Vc) and provides an output square wave signal (D) for driving the power transistor (M) of said DC-DC converter (4). The apparatus comprises digital means (PUSH) able to operate on the square wave signal (D) to obtain that it has a non-linear modulation only when the value of a signal (Vout, Iload) on the load (LOAD) is lower or higher than prefixed value range of said signal (Vout, Iload) on the load (LOAD).

Abstract translation: 该装置包括数字控制块（1），其具有输入中的参考数字信号，并且向脉宽调制（PWM）装置（3）提供调制信号。 只有当负载上的信号（Vout，I负载）的值低于或高于信号的前缀值范围（Vout）时，PUSH块才能由PWM装置给出的方波信号进行操作以获得非线性调制 ，我加载）。 PWM装置提供用于驱动DC-DC转换器的功率晶体管的方波信号。