Driving a primary-side switch and a secondary-side rectifier element in a switching converter
    1.
    发明申请
    Driving a primary-side switch and a secondary-side rectifier element in a switching converter 审中-公开
    在开关转换器中驱动初级侧开关和次级侧整流元件

    公开(公告)号:US20090086512A1

    公开(公告)日:2009-04-02

    申请号:US11864024

    申请日:2007-09-28

    IPC分类号: H02M3/335

    CPC分类号: H02M3/33592 Y02B70/1475

    摘要: An apparatus, comprising a transformer comprising a first winding and a second winding; a first switch coupled to the first winding and configured to alternate between an off state and an on state in response to a pulsed first signal; a rectifier coupled to the second winding and configured to alternate between an off state and an on state in response to a pulsed second signal; and a drive circuit configured to generate the first and second signals such that the first switch and the rectifier are switched to the on state in a temporally offset relation with each other.

    摘要翻译: 一种装置,包括:变压器,包括第一绕组和第二绕组; 第一开关,其耦合到所述第一绕组并且被配置为响应于脉冲的第一信号而在断开状态和导通状态之间交替; 耦合到所述第二绕组并被配置为响应于脉冲的第二信号而在断开状态和导通状态之间交替的整流器; 以及驱动电路,被配置为产生第一和第二信号,使得第一开关和整流器彼此以时间上偏移的关系切换到导通状态。

    Switching mode power supplies
    2.
    发明申请
    Switching mode power supplies 有权
    开关电源

    公开(公告)号:US20060044845A1

    公开(公告)日:2006-03-02

    申请号:US10529615

    申请日:2003-04-17

    IPC分类号: H02M3/335

    摘要: In a switching mode power supply, an input received from the secondary side of the transformer 7 and indicative of the power being drawn by the loads is used to control the timing of bursts. The input is compared with two threshold different threshold values V2, V3, and switching is enabled if the input rises above a first higher threshold value V2, and disabled if it falls below a second lower threshold value V3. A memory device FF1 controls a current limitation circuit which limits currents in the primary of the transformer when the switching mode power supply is operating in the burst mode.

    摘要翻译: 在开关模式电源中,使用从变压器7的次级侧接收并指示由负载引起的功率的输入来控制突发的定时。 将输入与两个阈值不同阈值V 2,V 3进行比较,并且如果输入上升到高于第一较高阈值V 2,则切换被使能,并且如果其低于第二较低阈值V 3则禁用。 当开关模式电源以突发模式工作时,存储器装置FF1控制电流限制电路,其限制变压器初级中的电流。

    Switching mode power supplies
    3.
    发明授权
    Switching mode power supplies 有权
    开关电源

    公开(公告)号:US07394669B2

    公开(公告)日:2008-07-01

    申请号:US10529615

    申请日:2003-04-17

    IPC分类号: H02M3/335

    摘要: In a switching mode power supply, an input received from the secondary side of the transformer 7 and indicative of the power being drawn by the loads is used to control the timing of bursts. The input is compared with two threshold different threshold values V2, V3, and switching is enabled if the input rises above a first higher threshold value V2, and disabled if it falls below a second lower threshold value V3. A memory device FF1 controls a current limitation circuit which limits currents in the primary of the transformer when the switching mode power supply is operating in the burst mode.

    摘要翻译: 在开关模式电源中,使用从变压器7的次级侧接收并指示由负载引起的功率的输入来控制突发的定时。 将输入与两个阈值不同阈值V 2,V 3进行比较,并且如果输入上升到高于第一较高阈值V 2,则切换被使能,并且如果其低于第二较低阈值V 3则禁用。 当开关模式电源以突发模式工作时,存储器装置FF1控制电流限制电路,其限制变压器初级中的电流。

    Switched-mode power supply with a function for detecting a broken feedback loop
    4.
    发明授权
    Switched-mode power supply with a function for detecting a broken feedback loop 有权
    开关电源具有检测断路反馈回路的功能

    公开(公告)号:US06735095B2

    公开(公告)日:2004-05-11

    申请号:US10330947

    申请日:2002-12-27

    IPC分类号: H02M3335

    CPC分类号: H02M1/32 H02M3/33523

    摘要: A switched mode power supply includes a primary coil, a switch element, a secondary circuit, and a control circuit. The switch element is wired in series with the primary coil, for applying a DC voltage to the primary coil according to a control signal. The secondary circuit is coupled to the primary coil with output terminals providing an output voltage. The control circuit prepares the control signal with a feedback signal dependent on the output voltage supplied to the control circuit. The control circuit includes a signal generation circuit to create the control signal and a protection circuit. The protection circuit has the effect that no control signal is delivered to the switch element, if the feedback signal reaches the value of a first reference signal after a first period after starting the control circuit.

    摘要翻译: 开关电源包括初级线圈,开关元件,次级电路和控制电路。 开关元件与初级线圈串联,用于根据控制信号向初级线圈施加直流电压。 次级电路耦合到初级线圈,输出端提供输出电压。 控制电路根据提供给控制电路的输出电压,使控制信号具有反馈信号。 控制电路包括产生控制信号的信号发生电路和保护电路。 如果反馈信号在启动控制电路的第一个周期之后达到第一参考信号的值,则保护电路具有不将控制信号传送到开关元件的效果。

    CONVERTER
    7.
    发明申请
    CONVERTER 有权
    转换器

    公开(公告)号:US20120287684A1

    公开(公告)日:2012-11-15

    申请号:US13103198

    申请日:2011-05-09

    申请人: Marc Fahlenkamp

    发明人: Marc Fahlenkamp

    IPC分类号: H02M11/00 H02M7/06 H02M1/36

    摘要: A converter may include a transformer; a first circuit arrangement coupled to a first transformer side; a second circuit arrangement coupled to a second transformer side, wherein the second circuit arrangement is configured to provide an output voltage; a first coupler configured to provide information about the output voltage to the first circuit arrangement; wherein the first circuit arrangement is configured to determine a state of the secondary side based on the received information about the output voltage, and to generate a switch control signal dependent on the determined state; a switch circuit arranged on the second side; and a second coupler configured to provide a switch control signal from the first circuit arrangement to the switch circuit; wherein the switch circuit is coupled to the first circuit arrangement to provide a first circuit arrangement control signal to the first circuit arrangement depending on the switch control signal.

    摘要翻译: A转换器可以包括变压器; 耦合到第一变压器侧的第一电路装置; 耦合到第二变压器侧的第二电路装置,其中所述第二电路装置被配置为提供输出电压; 第一耦合器,被配置为向所述第一电路装置提供关于所述输出电压的信息; 其中所述第一电路装置被配置为基于所接收的关于所述输出电压的信息来确定所述次级侧的状态,并且根据所确定的状态产生开关控制信号; 布置在第二侧的开关电路; 以及第二耦合器,被配置为提供从所述第一电路装置到所述开关电路的开关控制信号; 其中所述开关电路耦合到所述第一电路装置,以根据所述开关控制信号向所述第一电路装置提供第一电路布置控制信号。

    Actuation circuit for a switch in a switch-mode converter for improving the response to sudden changes
    8.
    发明申请
    Actuation circuit for a switch in a switch-mode converter for improving the response to sudden changes 有权
    用于开关模式转换器中的开关的驱动电路,用于改善对突然变化的响应

    公开(公告)号:US20060031736A1

    公开(公告)日:2006-02-09

    申请号:US11192976

    申请日:2005-07-28

    IPC分类号: H03M13/00

    摘要: The invention relates to an actuation circuit for a switch (SW) controlling the power consumption in a switch-mode converter which has input terminals (K1, K2) for applying an input voltage (Vin) and output terminals (K3, K4) for providing an output voltage. The actuation circuit (100) comprises a first input (K11) for supplying a voltage measurement signal (Vs) which is dependent on the output voltage (Vout), an error signal generation circuit (10) which generates an error signal (S10) by comparing the voltage measurement signal (Vs) with a reference signal (Vref), a filter arrangement (20) which is supplied with the error signal (S10) and which generates a first control signal (S1), and an actuation signal generation circuit (30) which is supplied with the first control signal (S1) and which provides an actuation signal (PWM) for the switch (SW) on the basis of the first control signal (S1). The filter arrangement comprises a first filter (21) with an integrating response which generates a first filter signal (S21) on the basis of the error signal (S10), a second filter (22) which generates a second filter signal (S22) from the error signal (S10) in accordance with a hysteresis characteristic, and a combinational logic circuit (23; 24, 25) which generates the first control signal (S1) from the first and second filter signals (S21, S22).

    摘要翻译: 本发明涉及一种用于控制开关模式转换器的功耗的开关(SW)的驱动电路,其具有用于施加输入电压(Vin)和输出端子(K 3,K)的输入端(K 1,K 2) 4)用于提供输出电压。 致动电路(100)包括用于提供取决于输出电压(Vout)的电压测量信号(Vs)的第一输入端(K 11),产生误差信号的误差信号发生电路(10) )通过将电压测量信号(Vs)与参考信号(Vref)进行比较,滤波器装置(20)被提供有误差信号(S10)并产生第一控制信号(S1) 信号发生电路(30),其被提供有第一控制信号(S1),并且基于第一控制信号(S1)提供用于开关(SW)的致动信号(PWM)。 滤波器装置包括具有积分响应的第一滤波器(21),该积分响应基于误差信号(S10)产生第一滤波器信号(S21);第二滤波器(22),其产生第二滤波器信号(S 22,根据滞后特性的误差信号(S10)和从第一和第二滤波器信号产生第一控制信号(S1)的组合逻辑电路(23; 24,25) S 22)。

    Actuation circuit for a switch in a switch-mode converter for improving the response to sudden changes
    9.
    发明授权
    Actuation circuit for a switch in a switch-mode converter for improving the response to sudden changes 有权
    用于开关模式转换器中的开关的驱动电路,用于改善对突然变化的响应

    公开(公告)号:US07312597B2

    公开(公告)日:2007-12-25

    申请号:US11192976

    申请日:2005-07-28

    IPC分类号: G05F1/10

    摘要: An actuation circuit is provided for a switch controlling the power consumption in a switch-mode converter which has input terminals for applying an input voltage and output terminals for providing an output voltage. The actuation circuit comprises a first input for supplying a voltage measurement signal which is dependent on the output voltage, an error signal generation circuit which generates an error signal by comparing the voltage measurement signal with a reference signal, a filter arrangement which is supplied with the error signal and which generates a first control signal, and an actuation signal generation circuit which is supplied with the first control signal and which provides an actuation signal for the switch on the basis of the first control signal. The filter arrangement comprises a first filter with an integrating response which generates a first filter signal on the basis of the error signal, a second filter which generates a second filter signal from the error signal in accordance with a hysteresis characteristic, and a combinational logic circuit which generates the first control signal from the first and second filter signals.

    摘要翻译: 提供一种致动电路,用于控制开关模式转换器中的功耗的开关,开关模式转换器具有用于施加输入电压的输入端子和用于提供输出电压的输出端子。 致动电路包括用于提供取决于输出电压的电压测量信号的第一输入端,通过将电压测量信号与基准信号进行比较来产生误差信号的误差信号产生电路, 误差信号并产生第一控制信号;以及致动信号发生电路,其提供有第一控制信号,并且基于第一控制信号为开关提供致动信号。 滤波器装置包括具有积分响应的第一滤波器,其基于误差信号产生第一滤波器信号;第二滤波器,其根据滞后特性从误差信号产生第二滤波器信号;以及组合逻辑电路 其从第一和第二滤波器信号产生第一控制信号。

    Converter with reduced power consumption
    10.
    发明授权
    Converter with reduced power consumption 有权
    转换器功耗降低

    公开(公告)号:US08953341B2

    公开(公告)日:2015-02-10

    申请号:US13103198

    申请日:2011-05-09

    申请人: Marc Fahlenkamp

    发明人: Marc Fahlenkamp

    IPC分类号: H02M3/335 H02M3/337 H02M1/00

    摘要: A converter may include a transformer; a first circuit arrangement coupled to a first transformer side; a second circuit arrangement coupled to a second transformer side, wherein the second circuit arrangement is configured to provide an output voltage; a first coupler configured to provide information about the output voltage to the first circuit arrangement; wherein the first circuit arrangement is configured to determine a state of the secondary side based on the received information about the output voltage, and to generate a switch control signal dependent on the determined state; a switch circuit arranged on the second side; and a second coupler configured to provide a switch control signal from the first circuit arrangement to the switch circuit; wherein the switch circuit is coupled to the first circuit arrangement to provide a first circuit arrangement control signal to the first circuit arrangement depending on the switch control signal.

    摘要翻译: A转换器可以包括变压器; 耦合到第一变压器侧的第一电路装置; 耦合到第二变压器侧的第二电路装置,其中所述第二电路装置被配置为提供输出电压; 第一耦合器,被配置为向所述第一电路装置提供关于所述输出电压的信息; 其中所述第一电路装置被配置为基于所接收的关于所述输出电压的信息来确定所述次级侧的状态,并且根据所确定的状态产生开关控制信号; 布置在第二侧的开关电路; 以及第二耦合器,被配置为提供从所述第一电路装置到所述开关电路的开关控制信号; 其中所述开关电路耦合到所述第一电路装置,以根据所述开关控制信号向所述第一电路装置提供第一电路布置控制信号。