公开(公告)号：US20080105409A1

公开(公告)日：2008-05-08

申请号：US11556556

申请日：2006-11-03

申请人： WEN-LI LUO ,  SHI-WEN ZHOU ,  CHUN-CHI CHEN

发明人： WEN-LI LUO ,  SHI-WEN ZHOU ,  CHUN-CHI CHEN

IPC分类号： H05K7/20

CPC分类号： H01L23/427 ,  F28D15/0266 ,  F28D15/0275 ,  F28F1/32 ,  H01L23/467 ,  H01L2924/0002 ,  H01L2924/00

摘要： A heat dissipation device includes a base for absorbing heat from a heat generating device and a first fin set disposed on the base. Two second fin sets are located on two sides of the first fin set and extend beyond the base. At least a heat pipe includes a first section thermally sandwiched between the base and the first fin set and extending totally within and thermally contacting with the two second fin sets, and a second section extending away from the base and thermally contacting the first fin set and the second fin set.

摘要翻译： 散热装置包括用于从发热装置吸收热量的基座和设置在基座上的第一翅片组。 两个第二个翅片组位于第一个翅片组的两侧，并延伸到基座之外。 至少一个热管包括热夹持在基部和第一翅片组之间的第一部分，并且全部在两个第二翅片组内部和与第二翅片组热接触的第一部分，以及远离基部延伸并与第一翅片组热接触的第二部分 第二个翅膀集。

公开(公告)号：US06954537B2

公开(公告)日：2005-10-11

申请号：US10038848

申请日：2001-12-31

申请人： Solomon Ng ,  Wen Li Luo

发明人： Solomon Ng ,  Wen Li Luo

IPC分类号： H03F1/30 ,  H03G3/34 ,  H04B15/00 ,  H03F21/00

CPC分类号： H03F1/305 ,  H03G3/348

摘要： An audio amplifier device includes a power supply having an output for providing a supply voltage, a voltage divider connected to the output of the power supply for providing a divided supply voltage, and an audio amplifier that further includes a supply voltage rejection circuit. The audio amplifier has a first input for receiving an input audio signal, a second input for receiving the supply voltage, a third input for receiving a supply voltage rejection signal for the supply voltage rejection circuit, and an output for providing an output audio signal. A power-off noise suppression circuit has a first input for receiving the divided supply voltage and an output for providing the supply voltage rejection signal. The power-off noise suppression circuit sets the supply voltage rejection signal equal to the divided supply voltage during power-off of the power supply so that a rate of decrease of the supply voltage is greater than a rate of decrease of the supply voltage rejection signal for reducing noise in the output audio signal during the power-off.

摘要翻译： 音频放大器装置包括具有用于提供电源电压的输出的电源，连接到电源的输出的分压器，用于提供分开的电源电压，以及还包括电源电压抑制电路的音频放大器。 音频放大器具有用于接收输入音频信号的第一输入端，用于接收电源电压的第二输入端，用于接收电源电压抑制电路的电源电压抑制信号的第三输入端和用于提供输出音频信号的输出端。 断电噪声抑制电路具有用于接收划分的电源电压的第一输入端和用于提供电源电压抑制信号的输出端。 断电噪声抑制电路将电源电压抑制信号设置为等于电源断电期间的分压电源电压，使得电源电压的降低率大于电源电压抑制信号的减小率 用于在断电期间降低输出音频信号中的噪声。

公开(公告)号：US06466422B2

公开(公告)日：2002-10-15

申请号：US10039043

申请日：2001-12-31

申请人： Wen Li Luo

发明人： Wen Li Luo

IPC分类号： H02H700

CPC分类号： G05F1/575 ,  G05F1/565

摘要： A voltage regulator includes a power transistor receiving a drive current, and a current limit protection circuit connected to the power transistor. The current limit protection circuit includes a first resistance connected to the power transistor for sensing an output current, a limit switch transistor connected to the power transistor and to the first resistance, and a current generator and second resistance connected thereto. The current generator and second resistance biases the limit switch transistor to divert drive current from the power transistor based upon the output current through the first resistance exceeding a threshold. The first resistance has a value less than a value of the second resistance. The first resistance can be made considerably smaller than otherwise to thereby reduce power consumption. The temperature coefficient for the second resistance is balanced with respect to a temperature coefficient for the first resistance so that a output current from the voltage regulator is not sensitive to temperature variations.

摘要翻译： 电压调节器包括接收驱动电流的功率晶体管和连接到功率晶体管的限流保护电路。 电流限制保护电路包括连接到用于感测输出电流的功率晶体管的第一电阻，连接到功率晶体管和第一电阻的限位开关晶体管，以及与其连接的电流发生器和第二电阻。 电流发生器和第二电阻偏置限位开关晶体管，以基于超过阈值的第一电阻的输出电流从功率晶体管转移驱动电流。 第一电阻具有小于第二电阻值的值。 第一个电阻可以比其他电阻小得多，从而降低功耗。 第二电阻的温度系数相对于第一电阻的温度系数平衡，使得来自电压调节器的输出电流对温度变化不敏感。

公开(公告)号：US20080121370A1

公开(公告)日：2008-05-29

申请号：US11564274

申请日：2006-11-28

申请人： Wen-Li Luo ,  Shi-Wen Zhou ,  Chun-Chi Chen

发明人： Wen-Li Luo ,  Shi-Wen Zhou ,  Chun-Chi Chen

IPC分类号： H05K7/20

CPC分类号： H01L23/427 ,  H01L23/467 ,  H01L2924/0002 ,  H01L2924/00

摘要： A heat dissipation device includes a heat spreader (20), a heat sink (10) attached to the heat spreader (20), a sleeve (40) and a heat pipe (30). The heat spreader (20) is for contacting a heat-generating electronic device. The heat sink (10) includes a base (12) and a plurality of fins (14, 15) extending from the base (12). The sleeve (40) is inserted into a through hole (16) defined in the fins (14, 15). The heat pipe (30) includes an evaporating portion (31) sandwiched between the heat spreader (20) and the base (12), and a condensing portion (33) received in the sleeve (40).

摘要翻译： 散热装置包括散热器（20），附接到散热器（20）的散热器（10），套筒（40）和热管（30）。 散热器（20）用于接触发热电子设备。 散热器（10）包括基部（12）和从基部（12）延伸的多个散热片（14,15）。 套筒（40）插入到限定在翅片（14,15）中的通孔（16）中。 热管（30）包括夹在散热器（20）和基座（12）之间的蒸发部分（31）和容纳在套筒（40）中的冷凝部分（33）。