DC to DC converter
    11.
    发明授权
    DC to DC converter 失效
    直流到直流转换器

    公开(公告)号:US06490175B2

    公开(公告)日:2002-12-03

    申请号:US09836085

    申请日:2001-04-17

    Abstract: A DC to DC converter converts a DC input voltage into a plurality of DC output voltages and includes a circuit stage having switching elements for converting a DC input voltage into a first AC signal (VAC1). A first resonant circuit converts a first AC signal into a second AC signal which is used for forming a first DC output voltage. A second resonant circuit converts the first AC signal into a third AC signal which is used for forming a second DC output voltage. A control circuit sets various frequency ranges for the first AC signal to set various supply power modes, such as for normal operation and standby mode.

    Abstract translation: DC-DC转换器将DC输入电压转换为多个DC输出电压,并且包括具有用于将DC输入电压转换为第一AC信号(VAC1)的开关元件的电路级。 第一谐振电路将第一AC信号转换成用于形成第一DC输出电压的第二AC信号。 第二谐振电路将第一AC信号转换成用于形成第二DC输出电压的第三AC信号。 控制电路为第一AC信号设置各种频率范围,以设置各种供电模式,例如用于正常操作和待机模式。

    Converter with resonant circuit elements for determing load type
    12.
    发明授权
    Converter with resonant circuit elements for determing load type 失效
    具有用于确定负载类型的谐振电路元件的转换器

    公开(公告)号:US06466456B2

    公开(公告)日:2002-10-15

    申请号:US09913476

    申请日:2001-08-15

    CPC classification number: H02M7/53832 H02M2007/4815 H05B41/2856 Y02B70/1441

    Abstract: A converter includes circuit elements for chopping a DC voltage, in which switch-on phases of the circuit elements are alternating. A circuit assembly with resonant elements is used for processing the chopped DC voltage and for producing an output voltage. The voltage present at one of the circuit elements is compared with a threshold in a dead time phase before the circuit element is switched on. The comparison result is used to determine whether an inductive or capacitive converter load is present. Alternatively, a differential quotient of the voltage present at one of the circuit elements during the dead time phase is used to determine whether an inductive or capacitive converter load is present.

    Abstract translation: A转换器包括用于切断DC电压的电路元件,其中电路元件的接通相交替。 具有谐振元件的电路组件用于处理斩波的直流电压并产生输出电压。 在电路元件接通之前,存在于电路元件之一处的电压与死区时间相位中的阈值进行比较。 比较结果用于确定是否存在电感或电容转换器负载。 或者,使用在死区时间阶段期间存在于电路元件之一处的电压的差分商确定是否存在电感或电容转换器负载。

    Multiple output voltage converter with improved cross-regulation
    13.
    发明授权
    Multiple output voltage converter with improved cross-regulation 失效
    多输出电压转换器具有改进的交叉调节

    公开(公告)号:US6072709A

    公开(公告)日:2000-06-06

    申请号:US205974

    申请日:1998-12-04

    Applicant: Hubert Raets

    Inventor: Hubert Raets

    CPC classification number: H02M3/28 H02M2001/009 Y10T307/383

    Abstract: A voltage converter for converting an input voltage into at least a first high output voltage and a second lower output voltage. An input resonant circuit includes a transformer primary winding. At least first and second output circuits, each of which includes a respective secondary winding or a part of a secondary winding of the transformer and which supply the first and second output voltages. The second output circuit includes a rectifier arrangement supplying a DC output voltage. To improve the synchronism of the output voltages, i.e. reduce the cross-regulation, an additional capacitance is connected parallel to the secondary winding of the second output circuit and is dimensioned such that its capacitance, transformed to the primary winding essentially corresponds to the capacitance, transformed to the primary winding, of a parallel capacitance of the secondary winding of the first output circuit. Alternatively, a subsidiary circuit can be added to the second output circuit comprising an additional transformer secondary winding with an additional capacitor and an additional rectifier arrangement in a series circuit arranged parallel to a branch of the rectifier arrangement and to a load connected thereto.

    Abstract translation: 一种用于将输入电压转换成至少第一高输出电压和第二较低输出电压的电压转换器。 输入谐振电路包括变压器初级绕组。 至少第一和第二输出电路,每个电路包括相应的次级绕组或变压器的次级绕组的一部分,并且提供第一和第二输出电压。 第二输出电路包括提供DC输出电压的整流器装置。 为了改善输出电压的同步,即减少交叉调节,额外的电容并联连接到第二输出电路的次级绕组,并且其尺寸使得其转换到初级绕组的电容基本上对应于电容, 转换到第一输出电路的次级绕组的并联电容的初级绕组。 或者,辅助电路可以被添加到第二输出电路,该第二输出电路包括具有附加电容器的附加变压器次级绕组和与整流器装置的分支并联布置的串联电路中的附加整流器装置和与其连接的负载。

    Circuit arrangement for supplying a load
    14.
    发明授权
    Circuit arrangement for supplying a load 失效
    用于提供负载的电路布置

    公开(公告)号:US4992921A

    公开(公告)日:1991-02-12

    申请号:US445582

    申请日:1989-11-30

    CPC classification number: H02M1/12 H02M3/10 H02M7/219

    Abstract: A circuit arrangement for supplying a load (15) with energy from a power supply mains (1 to 5; 21, 22, 23) conveying at least one alternating voltage (UW; R, S, T) includes a simple network to ensure both a uniform energy supply of the load (15) and a reliable suppression of interference from the load to the power supply mains and in the reverse direction by means of a rectifier arrangement (7 to 10) which for each terminal (4, 5; 21, 22, 23), of the power supply mains includes a rectifier stage (7, 8; 9, 10; 24, 25; 26, 27; 28, 29) constituted as a first branch of a bridge rectifier. For each rectifier stage an energy storage device (11; 12; 30; 31; 32) can be charged by and is connected to said stage in accordance with a complementary branch of the bridge rectifier. For each stage a switching element (13; 14; 33; 34; 35) is provided for connecting each energy storage device to the load. A control circuit (18; 36; 191, 192) switches the switching elements-- cyclically following the charge of the energy storage devices from the power supply mains, via the rectifier stages. The switching elements are switched to conduct outside of the charge time intervals of the storage devices (i.e. the conducting phases of the rectifier stages).

    Abstract translation: 用于向输送至少一个交流电压(UW; R,S,T)的电源电源(1至5; 21,22,23)提供负载(15)的能量的电路装置包括简单网络以确保两者 负载(15)的均匀能量供应,并且通过整流器装置(7至10)可靠地抑制来自负载到电源电源和相反方向的干扰,对于每个端子(4,51; 21 ,22,23)包括构成桥式整流器的第一分支的整流器级(7,8; 9,10; 24,25; 26,27,28,29)。 对于每个整流器级,能量存储装置(11; 12; 30; 31; 32)可以根据桥式整流器的互补支路充电并连接到所述级。 为每个级设置开关元件(13; 14; 33; 34; 35),用于将每个能量存储装置连接到负载上。 控制电路(18; 36; 191,192)经由整流器级将开关元件周期性地切换到来自电源电源的能量存储装置的电荷。 开关元件被切换以在存储装置的充电时间间隔(即,整流器级的导通阶段)之外进行导通。

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