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    • 12. 发明授权
    • Phase-shifted post-regulator, method of operation thereof and power converter employing the same
    • 相移后稳压器,其操作方法和使用该调整器的功率转换器
    • US06178098B1
    • 2001-01-23
    • US09401728
    • 1999-09-22
    • Jin HeMark E. Jacobs
    • Jin HeMark E. Jacobs
    • H02M3335
    • H02M3/33561H02M2001/0093
    • For use in a power converter having an inverter coupled to an output rectifier, a post-regulator, a method of operating the same and a power converter incorporating the post-regulator or the method. In one embodiment: (1) a switching circuit, having at least one controllable switch and coupled an output of the power converter, that receives an output voltage from the power converter and produces a phase-shifted waveform therefrom and (2) a transformer, having a primary winding coupled to the switching circuit and a secondary winding coupled to the rectifier, that delivers the phase-shifted waveform to the rectifier to regulate the power converter, thereby allowing the inverter to be unregulated.
    • 用于具有耦合到输出整流器的逆变器的功率转换器,后调节器,其操作方法以及并入后稳压器或方法的功率转换器。 在一个实施例中:(1)开关电路,具有至少一个可控开关并耦合功率转换器的输出,其接收来自功率转换器的输出电压,并产生相移波形,以及(2)变压器, 具有耦合到开关电路的初级绕组和耦合到整流器的次级绕组,其将相移波形传送到整流器以调节功率转换器,从而允许逆变器不受调节。
    • 13. 发明授权
    • Two-stage, three-phase boost converter with reduced total harmonic
distortion
    • 两级三相升压转换器,减少总谐波失真
    • US06122183A
    • 2000-09-19
    • US199289
    • 1998-11-24
    • Jin HeMark E. Jacobs
    • Jin HeMark E. Jacobs
    • H02M1/00H02M1/42H02M1/14
    • H02M1/4216Y02B70/126
    • For use with a three-phase boost converter having a primary stage with a primary rectifier and a primary boost switch coupled between an input and output of the three-phase boost converter, an auxiliary stage, a method of reducing input current total harmonic distortion (THD) at the input of the three-phase boost converter, and a three-phase boost converter employing the auxiliary stage and method are provided. In one embodiment, the auxiliary stage includes: (1) an auxiliary rectifier coupled to the primary rectifier, (2) first, second and third auxiliary boost inductors interposed between the primary rectifier and the auxiliary rectifier and (3) an auxiliary boost switch, interposed between the auxiliary rectifier and the output, that conducts to induce corresponding phase currents through the first, second and third auxiliary boost inductors thereby reducing input current total harmonic distortion (THD) at the input of the three-phase boost converter.
    • 用于具有初级整流器和耦合在三相升压转换器的输入和输出之间的初级升压开关的三相升压转换器,辅助级,减小输入电流总谐波失真的方法( THD)和三相升压转换器的输入,以及采用辅助级和方法的三相升压转换器。 在一个实施例中,辅助级包括:(1)耦合到初级整流器的辅助整流器,(2)插入在初级整流器和辅助整流器之间的第一,第二和第三辅助升压电感器,以及(3)辅助升压开关, 在辅助整流器和输出端之间,通过第一,第二和第三辅助升压电感器导通相应的相电流,从而降低三相升压转换器输入端的输入电流总谐波失真(THD)。
    • 19. 发明授权
    • Micro-speaker
    • 微型扬声器
    • US08879779B2
    • 2014-11-04
    • US13748087
    • 2013-01-23
    • Jin He
    • Jin He
    • H04R25/00
    • H04R1/00H04R9/046H04R9/10
    • Disclosed is a micro-speaker. A micro-speaker includes a frame, a magnetic circuit unit accommodating in the frame, a vibrating unit, an assistant coil attached to the frame and disposed below the diaphragm. The vibrating unit includes a diaphragm and a voice coil driving the diaphragm. The assistant coil includes an upper surface facing the diaphragm and an inclined surface connecting the upper surface and disposed closer to the voice coil than the upper surface.
    • 公开了一种微型扬声器。 微型扬声器包括框架,容纳在框架中的磁路单元,振动单元,附接到框架并设置在隔膜下方的辅助线圈。 振动单元包括驱动隔膜的隔膜和音圈。 辅助线圈包括面向隔膜的上表面和连接上表面并且比上表面更靠近音圈设置的倾斜表面。