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    • 63. 发明授权
    • Power adapter
    • US10284106B1
    • 2019-05-07
    • US15174083
    • 2016-06-06
    • VLT, Inc.
    • Patrizio VinciarelliAndrew T. D'Amico
    • H05K5/00H02M7/04H02M7/00H05K5/02H05K7/20H01R31/06
    • An efficient, high density, inline converter module includes a power conversion circuit and an input wiring harness for connecting the input of the power circuit to a unipolar source. A second wiring harness or electrical connectors may be provided for connecting the output of the power conversion circuit to a load. Connections between a wiring harness and the power conversion circuit may comprise conductive contacts, configured to distribute heat. The power circuit may be over molded to provide electrical insulation and efficient heat transfer to external ambient air. A DC transformer based inline converter module may be used in AC adapter, vehicular, and power system architectures. An input connector for connecting the input wiring harness to the input source may be provided. In some embodiments the input source may be an AC source and the input connector may comprise a rectifier for delivering a rectified, unipolar, voltage to the input of the power conversion assembly via an input wiring harness. By separating the rectifier from the power conversion assembly, the power conversion assembly may be packaged into a smaller volume than would be required if the rectifier, and its associated heat loss, were included in the power conversion assembly.
    • 66. 发明授权
    • Fault tolerant power converter
    • US09660537B1
    • 2017-05-23
    • US14682187
    • 2015-04-09
    • VLT, Inc.
    • Patrizio Vinciarelli
    • H02M7/219H02M3/335H02M7/00
    • H02M7/219G06F1/263G06F1/3287H01L2924/181H02M1/32H02M1/38H02M3/33507H02M3/33576H02M7/003H02M2001/0032H02M2001/325H03K17/063H03K17/302H03K17/6871Y02B70/1433Y02B70/16
    • A power converter provides a low-voltage output using a full-bridge fault-tolerant rectification circuit. The output circuit uses controlled switches as rectifiers. A fault detection circuit monitors circuit conditions. Upon detection of a fault, the switches are disabled decoupling the power converter from the system.A common-source dual MOSFET device includes a plurality of elements arranged in alternating patterns on a semiconductor die. A common-source dual synchronous rectifier includes control circuitry powered from the drain to source voltage of the complementary switch.A DC-to-DC transformer converts power from an input source to a load using a fixed voltage transformation ratio. A clamp phase may be used to reduce power losses in the converter at light loads, control the effective output resistance of the converter, effectively regulate the voltage transformation ratio, provide narrow band output regulation, and control the rate of change of output voltage for example during start up. One or more of the transformer windings may be clamped. The converter may use the sine amplitude converter topology. The converter may use common-source dual MOSFET devices and fault detection.The density of point of load power conversion may be increased and the associated power dissipation reduced by removing the input driver circuitry from the point of load where it is not necessary. An output circuit may be located at the point of load providing fault tolerant rectification of the AC power from the secondary winding of a power transformer which may be located nearby the output circuit. The resonant voltage and current waveforms on the primary side of the transformer are readily communicated via an AC bus between the driver circuit and the primary winding of the power transformer. The driver circuit may drive a plurality of transformer-output circuit pairs. The transformer and output circuit may be combined in a single module at the point of load. Alternatively, the output circuit may be integrated into point of load circuitry such as a processor core. The transformer may be deployed near the output circuit.
    • 69. 发明授权
    • Isolator with integral transformer
    • 带积分变压器的隔离器
    • US09508485B1
    • 2016-11-29
    • US14596836
    • 2015-01-14
    • VLT, Inc.
    • Patrizio Vinciarelli
    • H04L25/02H05K1/14H01F27/28H01F27/36H01F7/20H05K1/11H05K1/02H02J5/00H01F7/06H05K1/16
    • H01F27/2804H01F27/288H01F2019/085H01F2027/2809H04L25/0266H05K1/0239H05K1/0254H05K1/0298H05K1/145H05K1/165H05K3/366H05K2201/09063H05K2201/10189
    • A signal isolator apparatus includes a first substrate for supporting input circuitry including a high frequency oscillator circuit for receiving an input signal, a second substrate for supporting output circuitry including a detector circuit for providing an output signal; and a third substrate having parallel conductive layers separated by insulation. The third substrate has an upper conductive shield formed in a second conductive layer and a lower conductive shield formed in a fifth conductive layer. A transformer is formed between the upper and lower conductive shields and includes a primary winding formed in a third conductive layer and a secondary winding formed in a fourth conductive layer. The oscillator circuit is connected to the primary winding and adapted to excite the primary winding at a first frequency in response to the input signal, and the detector circuit is connected to the secondary winding and adapted to selectively sense the first frequency and provide the output signal. The third substrate is arranged to form a bridge connection between the first and second substrates.
    • 信号隔离器装置包括:第一基板,用于支撑包括用于接收输入信号的高频振荡器电路的输入电路;第二基板,用于支持包括用于提供输出信号的检测器电路的输出电路; 以及具有由绝缘体隔开的平行导电层的第三衬底。 第三基板具有形成在第二导电层中的上导电屏蔽和形成在第五导电层中的下导电屏蔽。 变压器形成在上下导电屏蔽之间,并且包括形成在第三导电层中的初级绕组和形成在第四导电层中的次级绕组。 振荡器电路连接到初级绕组并且适于响应于输入信号以第一频率激励初级绕组,并且检测器电路连接到次级绕组并且适于选择性地感测第一频率并提供输出信号 。 第三基板被布置成在第一和第二基板之间形成桥连接。