COMBINED INDUCTIVE AND SWITCHED CAPACITIVE POWER SUPPLY CONVERSION

    公开(公告)号:US20190393782A1

    公开(公告)日:2019-12-26

    申请号:US16451529

    申请日:2019-06-25

    Abstract: A DC-DC switching converter with an LC output filter has a switched capacitor converter providing the capacitance of the output filter. The switched capacitor converter may be a multi-phase switched capacitor converter. Topology of connections between capacitors of the multi-phase switched capacitor converter may be dependent on phases of clock signal(s) provided to the multi-phase switched capacitor converter. The switched capacitor converter may rely on parasitic inductances, or include discrete inductors, in series between connected capacitors to allow for adiabatic or near adiabatic voltage conversion.

    Light source apparatus, discharge lamp driving method, and projector
    2.
    发明授权
    Light source apparatus, discharge lamp driving method, and projector 有权
    光源装置,放电灯驱动方法和投影仪

    公开(公告)号:US09526157B2

    公开(公告)日:2016-12-20

    申请号:US13549579

    申请日:2012-07-16

    Abstract: A light source apparatus includes a discharge lamp including a light-emitting container having a cavity in which a discharge medium is enclosed, and a pair of electrodes disposed such that respective tip portions thereof oppose each other in the cavity, and a driving unit that supplies a driving current to the pair of electrodes. The driving current is generated by modulating amplitude of alternating current having a frequency not lower than 1 kHz and not higher than 10 GHz, such that a first section and a second section in which the amplitude is smaller than in the first section are alternately repeated.

    Abstract translation: 一种光源装置,包括放电灯,该放电灯包括发光容器,该发光容器具有封闭放电介质的空腔;以及一对电极,其设置成使其各自的前端部分在空腔中相对;以及驱动单元, 到一对电极的驱动电流。 通过调制具有不低于1kHz且不高于10GHz的频率的交变电流的振幅来产生驱动电流,使得其中振幅小于第一部分的第一部分和第二部分交替重复。

    Start-up circuit for voltage reference generator
    3.
    发明授权
    Start-up circuit for voltage reference generator 有权
    电压基准发生器启动电路

    公开(公告)号:US6160392A

    公开(公告)日:2000-12-12

    申请号:US225304

    申请日:1999-01-05

    Inventor: Youn-Cherl Shin

    CPC classification number: G05F3/242 G05F1/468 Y10S323/901

    Abstract: A start-up circuit for a reference voltage generator which restarts a reference voltage generating circuit when a reference voltage drops below a predetermined level due to noises or change of a power supply voltage. The start-up circuit according to the present invention includes a reference voltage generating unit operated by an input signal and generating a reference voltage in accordance with a power supply voltage, a reference voltage sensing unit determining whether an output signal from the reference voltage generating unit is lower than a predetermined voltage level, and a start-up circuit unit determining an initial operation of the reference voltage generating unit in accordance with a reset signal and supplying the input signal to restart the reference voltage generating unit in accordance with an output signal from the reference voltage sensing unit.

    Abstract translation: 用于参考电压发生器的启动电路,当参考电压由于噪声或电源电压变化而降低到预定电平以下时,基准电压产生电路重启。 根据本发明的起动电路包括由输入信号操作并根据电源电压产生参考电压的参考电压产生单元,基准电压感测单元确定来自参考电压产生单元的输出信号 低于预定电压电平,启动电路单元根据复位信号确定基准电压产生单元的初始动作,并根据来自所述基准电压产生单元的输出信号提供输入信号以重新启动基准电压产生单元 参考电压感测单元。

    Electrical power supply with low-loss inrush current limiter and step-up
converter circuit
    4.
    发明授权
    Electrical power supply with low-loss inrush current limiter and step-up converter circuit 失效
    具有低损耗涌流限流器和升压转换器电路的电源

    公开(公告)号:US6094036A

    公开(公告)日:2000-07-25

    申请号:US92089

    申请日:1998-06-05

    Inventor: Andreas Rampold

    CPC classification number: H02H9/001 H02M7/062 Y10S323/908

    Abstract: An electrical power supply (EPS) including a voltage regulator (SR1) and an inrush current limiter (ICL1) having a current limiting circuit (CL1) and a support capacitor (C1). Charging current spikes produced in particular when the electrical power supply (EPS) is switched on are limited by the current limiting circuit (CL1). The current limiting circuit (CL1) is connected in series with the support capacitor (C1), thus preventing load current from flowing through the current limiting circuit. A step-up converter circuit (SUC) is connected upstream of the current limiting circuit (CL1) with the particular purpose of increasing the voltage (V). An advantage of the arrangement is that, due to the step-up converter circuit (SUC), the support capacitor (C1) has considerably improved support characteristics with regard to the switching regulator (SR1). Furthermore, the boosted voltage (V) at the terminals (T1 and T3) of the inrush current limiter (ICL1) considerably reduces the disruptive effects of interference voltages caused by the switching regulator (SR1). Additional interference suppression, e.g., by means of a costly radiointerference suppression network, is thereby advantageously rendered unnecessary.

    Abstract translation: 包括电压调节器(SR1)和具有限流电路(CL1)和支持电容器(C1)的浪涌电流限制器(ICL1)的电源(EPS)。 当电源(EPS)接通时特别产生的充电电流尖峰受限流电路(CL1)限制。 限流电路(CL1)与支持电容器(C1)串联连接,从而防止负载电流流过限流电路。 升压转换器电路(SUC)连接在限流电路(CL1)的上游,其目的是提高电压(V)。 该装置的优点在于,由于升压转换器电路(SUC),支持电容器(C1)相对于开关调节器(SR1)具有显着改进的支持特性。 此外,浪涌电流限制器(ICL1)的端子(T1和T3)处的升压电压(V)显着降低了由开关调节器(SR1)引起的干扰电压的破坏性影响。 因此,有利地,不需要额外的干扰抑制,例如通过昂贵的无线电干扰抑制网络。

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