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公开(公告)号：US07289396B2
公开(公告)日：2007-10-30
申请号：US10778078
申请日：2004-02-17
IPC分类号： G11B7/00
CPC分类号： G11B19/02 , G11B7/0857 , G11B17/051
摘要： A driver IC 1 has a bias terminal 20a via which a bias voltage fed from a microcomputer 2 to drive and control a loading motor 4 is fed in and a bias terminal 20b via which a bias voltage fed from a DSP 3 to drive and control a focus coil 5, a tracking coil 6, a sled motor 7, and a spindle motor 8 is fed in.
摘要翻译： 驱动器IC1具有偏置端子20a，通过该偏置端子将从微型计算机2馈送的驱动和控制负载电动机4的偏置电压馈送到偏置端子20b，通过偏置端子20b从DSP 3馈送的偏置电压驱动和 控制聚焦线圈5，跟踪线圈6，滑动马达7和主轴马达8进给。
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公开(公告)号：US20080019225A1
公开(公告)日：2008-01-24
申请号：US11902137
申请日：2007-09-19
IPC分类号： G11B7/085
CPC分类号： G11B19/02 , G11B7/0857 , G11B17/051
摘要： A driver IC 1 has a bias terminal 20a via which a bias voltage fed from a microcomputer 2 to drive and control a loading motor 4 is fed in and a bias terminal 20b via which a bias voltage fed from a DSP 3 to drive and control a focus coil 5, a tracking coil 6, a sled motor 7, and a spindle motor 8 is fed in.
摘要翻译： 驱动器IC1具有偏置端子20a，通过该偏置端子将从微型计算机2馈送的驱动和控制负载电动机4的偏置电压馈送到偏置端子20b，通过偏置端子20b从DSP 3馈送的偏置电压驱动和 控制聚焦线圈5，跟踪线圈6，滑动马达7和主轴马达8进给。
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公开(公告)号：US07660210B2
公开(公告)日：2010-02-09
申请号：US11902137
申请日：2007-09-19
IPC分类号： G11B7/00
CPC分类号： G11B19/02 , G11B7/0857 , G11B17/051
摘要： A driver IC 1 has a bias terminal 20a via which a bias voltage fed from a microcomputer 2 to drive and control a loading motor 4 is fed in and a bias terminal 20b via which a bias voltage fed from a DSP 3 to drive and control a focus coil 5, a tracking coil 6, a sled motor 7, and a spindle motor 8 is fed in.
摘要翻译： 驱动器IC1具有偏置端子20a，通过该偏置端子20a馈送来自微型计算机2的驱动和控制负载电动机4的偏压，偏置端子20b通过偏置端子20b从DSP 3馈送偏置电压来驱动和控制 聚焦线圈5，跟踪线圈6，滑动马达7和主轴马达8。
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公开(公告)号：US20130307435A1
公开(公告)日：2013-11-21
申请号：US13888817
申请日：2013-05-07
CPC分类号： G05F1/468 , H02M1/36 , H02M3/1582 , H05B33/0815 , H05B33/0818 , Y02B20/346
摘要： A power-supply device has a first power supply circuit adapted to generate from an input voltage a first output voltage and a second power supply circuit adapted to generate from the first output voltage a second output voltage. The second power supply circuit monitors the first output voltage to check if it is higher than a first threshold voltage, and also monitors the first power-supply circuit to check if it has started operation for generating the first output voltage, so that the second power supply circuit stays on stand-by, even when the first output voltage is higher than the first threshold voltage, until the first power supply circuit starts operation for generating the first output voltage.
摘要翻译： 电源装置具有适于从输入电压产生第一输出电压的第一电源电路和适于从第一输出电压产生第二输出电压的第二电源电路。 第二电源电路监视第一输出电压以检查其是否高于第一阈值电压，并且还监视第一电源电路以检查其是否已经开始运行以产生第一输出电压，使得第二电源 即使第一输出电压高于第一阈值电压，直到第一电源电路开始运行以产生第一输出电压，供电电路仍然处于待机状态。
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公开(公告)号：US07432761B2
公开(公告)日：2008-10-07
申请号：US11658102
申请日：2005-06-17
申请人： Shinsuke Takagimoto , Koji Miyamoto
发明人： Shinsuke Takagimoto , Koji Miyamoto
IPC分类号： H03F21/00
CPC分类号： H03F3/72 , H03F1/52 , H03F3/181 , H03F2200/03 , H03F2200/301 , H03F2200/441
摘要： It is desirable that some voltage can be supplied as emergency backup even upon occurrence of abnormality such as a failure. The amplifier circuit in a semiconductor device supplies an output signal having a voltage produced by amplifying an input voltage Vin from a variable voltage source to one end of a coil load, and supplies a predetermined fixed voltage of 0V, for example, to the other end of the coil load to rotate the coil load with the voltage difference between these output signals, thus performing loading control of a CD tray and a DVD tray. The semiconductor device clamps the voltage of the output signal to a predetermined non-zero voltage so that a sufficient drive voltage can be obtained even if a loading control terminal T1 is grounded, thus realizing emergency backup loading control of the tray.
摘要翻译： 即使发生故障等异常，也可以作为紧急备用提供一定的电压。 半导体器件中的放大器电路将具有从可变电压源的输入电压Vin放大到线圈负载的一端所产生的电压的输出信号提供给例如0V的预定固定电压， 的线圈负载以使这些输出信号之间的电压差旋转线圈负载，从而执行CD托盘和DVD托盘的加载控制。 半导体器件将输出信号的电压钳位到预定的非零电压，使得即使加载控制端子T 1接地也可以获得足够的驱动电压，从而实现托盘的紧急备用加载控制。
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公开(公告)号：US20080024186A1
公开(公告)日：2008-01-31
申请号：US11658102
申请日：2005-06-17
申请人： Shinsuke Takagimoto , Koji Miyamoto
发明人： Shinsuke Takagimoto , Koji Miyamoto
IPC分类号： H03K5/08
CPC分类号： H03F3/72 , H03F1/52 , H03F3/181 , H03F2200/03 , H03F2200/301 , H03F2200/441
摘要： It is desirable that some voltage can be supplied as emergency backup even upon occurrence of abnormality such as a failure. The amplifier circuit in a semiconductor device supplies an output signal having a voltage produced by amplifying an input voltage Vin from a variable voltage source to one end of a coil load, and supplies a predetermined fixed voltage of 0V, for example, to the other end of the coil load to rotate the coil load with the voltage difference between these output signals, thus performing loading control of a CD tray and a DVD tray. The semiconductor device clamps the voltage of the output signal to a predetermined non-zero voltage so that a sufficient drive voltage can be obtained even if a loading control terminal T1 is grounded, thus realizing emergency backup loading control of the tray.
摘要翻译： 即使发生故障等异常，也可以作为紧急备用提供一定的电压。 半导体器件中的放大器电路将具有从可变电压源的输入电压Vin放大到线圈负载的一端所产生的电压的输出信号提供给例如0V的预定固定电压， 的线圈负载以使这些输出信号之间的电压差旋转线圈负载，从而执行CD托盘和DVD托盘的加载控制。 半导体器件将输出信号的电压钳位到预定的非零电压，使得即使加载控制端子T 1接地也可以获得足够的驱动电压，从而实现托盘的紧急备用加载控制。
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