公开(公告)号：US09397574B2

公开(公告)日：2016-07-19

申请号：US13990394

申请日：2011-12-19

Applicant: Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

Inventor： Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

IPC: G05F1/00 ,  H02M3/335 ,  H02M7/757 ,  H02M3/337 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02M3/3376 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A control device controls a switching circuit of a DC-DC converter. The switching circuit includes a half-bridge with at least first and second switches connected between an input voltage and a reference voltage. The converter comprises a transformer with a primary coupled with the center point of the half-bridge and a secondary coupled with a load. The control device comprises an error detector configured to determine an error signal representing a difference between a first signal representative of the voltage across the load and a first reference signal and a frequency controller configured to increase the switching frequency of the half-bridge when the error signal is kept below a second signal.

Abstract translation: 控制装置控制DC-DC转换器的开关电路。 开关电路包括具有连接在输入电压和参考电压之间的至少第一和第二开关的半桥。 该转换器包括一个与半桥的中心点初级耦合的变压器，以及与负载耦合的二次变压器。 控制装置包括误差检测器，其被配置为确定表示代表负载两端的电压的第一信号与第一参考信号之间的差的误差信号，以及配置为当误差增加半桥的开关频率时的频率控制器 信号保持低于第二信号。

公开(公告)号：US06480402B2

公开(公告)日：2002-11-12

申请号：US09902297

申请日：2001-07-09

Applicant: Claudio Adragna ,  Claudio Spini

Inventor： Claudio Adragna ,  Claudio Spini

IPC: H02M112

CPC classification number: H02M1/36 ,  Y10S323/901

Abstract: The present invention relates to a start up circuit for commutation power supplies (PWM) or DC/DC converters and to a commutation type power supply comprising such a start up circuit. In an embodiment the start up circuit for commutation power supplies having an input terminal (In) and an output terminal (OUT) comprises: a first current generator (41) able to supply a first prefixed current (I) connected between said input terminal (In) and a first node (45); said first node (45) is coupled to said output terminal (OUT); characterized by further comprising a second current generator (42) able to supply a second prefixed current (K*I) connected between said input terminal (In) and a first terminal of a first controlled switch (44); the value of said second prefixed current (K*I) is greater than or equal to the value of said first prefixed current (I); a second terminal of said first controlled switch (44) is connected to said first node (45); a control circuit (43, V3) of said first controlled switch (44) able to maintain closed said first controlled switch (44) in the case in which the voltage on said output terminal (OUT) is lower than a first prefixed voltage (V3). (FIG. 4).

Abstract translation: 本发明涉及一种用于换向电源（PWM）或DC / DC转换器的启动电路以及包括这种启动电路的换向型电源。 在一个实施例中，具有输入端（In）和输出端（OUT）的换向电源的启动电路包括：第一电流发生器（41），其能够提供连接在所述输入端（ In）和第一节点（45）; 所述第一节点（45）耦合到所述输出端（OUT）; 其特征在于还包括能够提供连接在所述输入端子（In）和第一受控开关（44）的第一端子之间的第二预定电流（K * I）的第二电流发生器（42）。 所述第二预定电流（K * I）的值大于或等于所述第一前置电流（I）的值; 所述第一受控开关（44）的第二端子连接到所述第一节点（45）; 在所述输出端子（OUT）的电压低于第一预定电压（V3）的情况下，所述第一受控开关（44）的控制电路（43，V3）能够保持关闭所述第一受控开关（44） ）。 （图4）。

公开(公告)号：US20130329470A1

公开(公告)日：2013-12-12

申请号：US13990394

申请日：2011-12-19

Applicant: Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

Inventor： Alberto Stroppa ,  Claudio Spini ,  Claudio Adragna

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/3376 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A control device controls a switching circuit of a DC-DC converter. The switching circuit includes a half-bridge with at least first and second switches connected between an input voltage and a reference voltage. The converter comprises a transformer with a primary coupled with the center point of the half-bridge and a secondary coupled with a load. The control device comprises an error detector configured to determine an error signal representing a difference between a first signal representative of the voltage across the load and a first reference signal and a frequency controller configured to increase the switching frequency of the half-bridge when the error signal is kept below a second signal.

Abstract translation: 控制装置控制DC-DC转换器的开关电路。 开关电路包括具有连接在输入电压和参考电压之间的至少第一和第二开关的半桥。 该转换器包括一个与半桥的中心点初级耦合的变压器，以及与负载耦合的二次变压器。 控制装置包括误差检测器，其被配置为确定表示代表负载两端的电压的第一信号与第一参考信号之间的差的误差信号，以及配置为当误差增加半桥的开关频率时的频率控制器 信号保持低于第二信号。