Voltage compensating method for converter

    公开(公告)号:US09614460B2

    公开(公告)日:2017-04-04

    申请号:US14566386

    申请日:2014-12-10

    CPC classification number: H02M7/53871 H02M2001/385

    Abstract: A voltage compensating method is applied to a converter for converting a DC voltage into an AC voltage. The converter includes a first switch module, a second switch module, and an inductor. In a first dead time period, detect a first current value related to the inductor. According to the first current value, calculate a second current value and a third current value related to the inductor. According to polarities of the first, second and third current values, determine an output mode of the converter indicating a voltage compensation model after the first dead time period. According to the voltage compensation model, the first current value, and the second current value or the third current value, calculate a voltage compensation value. In a second dead time period, adjust a switching time for the first switch module and the second switch module according to the voltage compensation value.

    Full-bridge quasi resonant DC-DC converter and driving method thereof
    4.
    发明授权
    Full-bridge quasi resonant DC-DC converter and driving method thereof 有权
    全桥准谐振DC-DC转换器及其驱动方法

    公开(公告)号:US09306463B2

    公开(公告)日:2016-04-05

    申请号:US13705029

    申请日:2012-12-04

    CPC classification number: H02M3/33576 H02M7/5387 Y02B70/1433

    Abstract: A full-bridge quasi-resonant DC-DC converter is provided, including a transformer having a primary winding and a secondary winding, a full-bridge converting circuit electrically connected with the primary winding of the transformer, a resonant capacitor provided between the full-bridge converting circuit and the primary winding, a rectifier circuit electrically connected with the secondary winding of the transformer, and a resonant inductor connected in series with the rectifier circuit. Therefore, the full-bridge quasi-resonant DC-DC converter reduces the switching losses of the switching elements and effectively reduces the size of the converter, while increases the conversion efficiency.

    Abstract translation: 提供了一种全桥准谐振DC-DC转换器,包括具有初级绕组和次级绕组的变压器,与变压器初级绕组电连接的全桥转换电路, 桥式变换电路和初级绕组,与变压器的次级绕组电连接的整流电路,以及与整流电路串联连接的谐振电感器。 因此,全桥准谐振DC-DC转换器可降低开关元件的开关损耗,有效降低转换器的体积,同时提高转换效率。

    Bypass seamless switching apparatus and method thereof

    公开(公告)号:US12278484B2

    公开(公告)日:2025-04-15

    申请号:US18347914

    申请日:2023-07-06

    Abstract: A bypass seamless switching apparatus and a method thereof are provided, in which a controller sends a first control signal to control or switch a first relay to on/off state, sends a second control signal to control or switch a second relay to on/off state, and sends a switch signal to control or switch a bypass switch module to on/off state. When the controller is in failure mode or is disconnected, a driving power supply of a bypass circuit provides a driving signal to the bypass switch module to maintain or switch a switch of the bypass switch module to on state, so that the bypass switch module is in short-circuit state or short-circuit protection state, and a bypass side voltage of the bypass switch module is equal to or close to zero voltage, so as to execute bypass function or bypass seamless switching function of the bypass switch module.

    Interlocking device and three-phase interlocking device for DC to AC converter
    8.
    发明授权
    Interlocking device and three-phase interlocking device for DC to AC converter 有权
    用于直流到交流转换器的联锁装置和三相互锁装置

    公开(公告)号:US09240738B2

    公开(公告)日:2016-01-19

    申请号:US14137338

    申请日:2013-12-20

    CPC classification number: H02M7/487 H02M1/32

    Abstract: The disclosure provides an interlocking device and a three-phase interlocking device for a DC to AC converter (DAC). The interlocking device includes a first interlocking circuit and a second interlocking circuit. The first interlocking circuit couples with a first switch and a second switch, controls whether to conduct the first switch according to the logic levels of a first signal, a second signal and a third signal, and controls whether to conduct the second switch according to the logic levels of the first signal and the second signal. The second interlocking circuit couples with a third switch and a fourth switch, controls whether to conduct the third switch according to the logic levels of the first signal, the third signal and a fourth signal, and controls whether to turn on the fourth switch according to the logic levels of the third signal and the fourth signal.

    Abstract translation: 本公开提供了一种用于DC到AC转换器(DAC)的互锁装置和三相互锁装置。 互锁装置包括第一互锁电路和第二互锁电路。 第一互锁电路与第一开关和第二开关耦合,根据第一信号,第二信号和第三信号的逻辑电平来控制是否进行第一开关,并且根据第一开关和第三信号控制是否进行第二开关 第一信号和第二信号的逻辑电平。 第二联锁电路与第三开关和第四开关耦合,根据第一信号,第三信号和第四信号的逻辑电平来控制是否导通第三开关,并且根据第四开关控制是否接通第四开关 第三信号和第四信号的逻辑电平。

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