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1. 发明授权

US07233191B2 JFET driver circuit and JFET driving method 失效
标题翻译： JFET驱动电路和JFET驱动方法
公开(公告)号：US07233191B2
公开(公告)日：2007-06-19
申请号：US11128200
申请日：2005-05-13
申请人： Hung-I Wang , Liang-Pin Tai
发明人： Hung-I Wang , Liang-Pin Tai
IPC分类号： H03K17/687
CPC分类号： H03K17/04123 , H03K17/063
摘要： To turn on a JFET, a two-stage turn-on current control is employed in a JFET driver circuit and a JFET driving method, by which a shortly pulsed high sourcing current is provided to turn on the JFET rapidly and efficiently, and a continuous low sourcing current is provided after the JFET turns on for reducing the power dissipation. After the JFET turns off, a negative charge pump is also employed to promise the JFET at a turn-off state. A special power sequence is further employed to ensure the JFET could be turned off during the power supply coupled to the JFET starts up.
摘要翻译：为了打开JFET，在JFET驱动电路和JFET驱动方法中采用两级导通电流控制，通过该方法提供短脉冲高电源电流以快速有效地接通JFET，并且连续在JFET导通之后提供低电源电流，以降低功耗。在JFET关断之后，还使用负电荷泵来保证JFET处于关断状态。进一步采用特殊的电源顺序，以确保在JFET启动的电源期间可以关断JFET。

2. 发明授权

US06946823B2 Delta-sigma DC-to-DC converter and method thereof 失效
标题翻译： Delta-sigma DC-DC转换器及其方法
公开(公告)号：US06946823B2
公开(公告)日：2005-09-20
申请号：US10846601
申请日：2004-05-17
申请人： Kent Huang , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Kuo-Ping Liu , Yu-Fan Liao
发明人： Kent Huang , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Kuo-Ping Liu , Yu-Fan Liao
IPC分类号： H02M3/158 , G05F1/575
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A delta-sigma DC-to-DC converter comprises a pair of high-side and low-side switches switched to convert an input voltage to an output voltage, a sense circuit to sense the output voltage of the converter to generate a feedback signal, a transconductive amplifier to amplify a difference between the feedback signal and a threshold signal to generate a differential current, a charging circuit connected with the differential current to generate a charging voltage, and a driver to compare the charging voltage with two reference signals to generate the pair of low-side and high-side driving signals.
摘要翻译： Δ-ΣDC-DC转换器包括一对开关将输入电压转换为输出电压的高侧和低侧开关，感测电路以感测转换器的输出电压以产生反馈信号，用于放大反馈信号和阈值信号之间的差异以产生差分电流的跨导放大器，与差分电流连接以产生充电电压的充电电路，以及将充电电压与两个参考信号进行比较的驱动器，以产生一对低侧和高侧驱动信号。

3. 发明授权

US07049800B2 Switching mode voltage regulator and method thereof 有权
标题翻译：开关电压调节器及其方法
公开(公告)号：US07049800B2
公开(公告)日：2006-05-23
申请号：US10743915
申请日：2003-12-24
申请人： Jian-Rong Huang , Liang-Pin Tai , Hung-I Wang , Chung-Lung Pai , Jing-Mong Liu
发明人： Jian-Rong Huang , Liang-Pin Tai , Hung-I Wang , Chung-Lung Pai , Jing-Mong Liu
IPC分类号： G05F1/40
CPC分类号： H02M3/156 , H02M3/1588 , H02M2001/0032 , Y02B70/1466 , Y02B70/16
摘要： A switching mode voltage regulator comprises a pulse width modulator and an adjustable one-shot circuit to generate an adjustable signal based on an input voltage, an adjustable voltage, and a PWM signal from the pulse width modulator at light loading to switch a high-side switch of an output stage in the voltage regulator. The ON duty of the adjustable signal is controlled by the adjustable voltage, such that it will be larger than that of the PWM signal and as a result, the number of switching the switch of the output stage is decreased, thereby reducing the switching loss and improving the efficiency of the voltage regulator.
摘要翻译：开关模式电压调节器包括脉冲宽度调制器和可调单触发电路，以在轻负载时基于输入电压，可调电压和来自脉宽调制器的PWM信号产生可调信号，以切换高端在稳压器中切换输出级。可调信号的导通占空比由可调电压控制，使其大于PWM信号，因此输出级开关的切换次数减少，从而降低开关损耗，提高电压调节器的效率。

4. 发明授权

US06839252B2 Two-step ripple-free multi-phase buck converter and method thereof 有权
标题翻译：两级无波纹多相降压转换器及其方法
公开(公告)号：US06839252B2
公开(公告)日：2005-01-04
申请号：US10442077
申请日：2003-05-21
申请人： Liang-Pin Tai , Shwu-Liang Hsieh , Hung-I Wang , Jing-Meng Liu
发明人： Liang-Pin Tai , Shwu-Liang Hsieh , Hung-I Wang , Jing-Meng Liu
IPC分类号： H02M3/158 , H02M7/00 , G05F1/40
CPC分类号： H02M3/1584 , H02M2001/0029
摘要： A two-step ripple-free multi-phase buck converter and method thereof comprises a first-stage voltage regulator to convert an input voltage to an intermediate voltage and a second-stage voltage regulator with a phase number not less than two to further convert the intermediate voltage to an output voltage by a split phase control, in which the ratio of the intermediate voltage to the output voltage is intended to the phase number such that the steady state output current of the converter approaches to be ripple-free, and hence the drivers and MOSFETs for the second-stage voltage regulator are lower cost, the efficiency of the second-stage voltage regulator is improved, and a higher slew rate current is obtained for transient driving capabilities.
摘要翻译：两级无纹波多相降压转换器及其方法包括将输入电压转换为中间电压的第一级电压调节器和相位数不少于2的第二级稳压器，以进一步转换通过分相控制将中间电压输出到输出电压，其中中间电压与输出电压的比率旨在达到相位数，使得转换器的稳态输出电流接近无波纹，因此第二级稳压器的驱动器和MOSFET的成本较低，二级稳压器的效率得到提高，瞬态驱动能力可获得更高的转换速率电流。

5. 发明授权

US06414470B1 Apparatus and method for balancing channel currents in a multi-phase DC-to-DC converter 有权
标题翻译：用于平衡多相DC-DC转换器中的通道电流的装置和方法
公开(公告)号：US06414470B1
公开(公告)日：2002-07-02
申请号：US10051136
申请日：2002-01-22
申请人： Jing-Meng Liu , Liang-Pin Tai , Hung-I Wang
发明人： Jing-Meng Liu , Liang-Pin Tai , Hung-I Wang
IPC分类号： G05F140
CPC分类号： H02M3/1584 , H02J1/102
摘要： An apparatus and method for current balance in a multi-phase DC-to-DC converter with a converter output voltage and a plurality of channel currents employs for each channel a multi-input pulse width modulator or an ordinary pulse width modulator in conjunction with a multi-input comparator to produce a respective PWM signal to regulate the corresponding channel current. In addition to the comparison of the converter output voltage with a reference signal to produce an error signal, the apparatus and method compares the error signal with a ramp signal and the corresponding channel current with each of the other channel currents with the multi-input pulse width modulator. Alternatively, a ramp signal is compared by the ordinary pulse width modulator with a signal derived from the multi-input comparator which subtracts the corresponding channel current from each other channel current and sums the error signal.
摘要翻译：具有转换器输出电压和多个通道电流的多相DC-DC转换器中的电流平衡的装置和方法为每个通道使用多输入脉宽调制器或普通脉冲宽度调制器多输入比较器产生相应的PWM信号来调节相应的通道电流。除了将转换器输出电压与参考信号进行比较以产生误差信号之外，装置和方法还将误差信号与斜波信号和相应的通道电流与多输入脉冲中的每一个通道电流进行比较宽度调制器或者，通过普通脉冲宽度调制器将斜坡信号与从多输入比较器导出的信号进行比较，该信号从彼此的通道电流中减去对应的通道电流，并对误差信号求和。

6. 发明授权

US07233134B2 DC-to-DC converter with fast load transient response and method thereof 失效
标题翻译：具有快速负载瞬态响应的DC-DC转换器及其方法
公开(公告)号：US07233134B2
公开(公告)日：2007-06-19
申请号：US10846569
申请日：2004-05-17
申请人： Kent Huang , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Kuo-Ping Liu , Yu-Fan Liao
发明人： Kent Huang , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Kuo-Ping Liu , Yu-Fan Liao
IPC分类号： G05F1/40
CPC分类号： H02M3/158
摘要： A DC-to-DC converter comprises a sense circuit to sense the output voltage of the converter to generate a feedback signal, a transconductive amplifier to amplify a difference between the feedback signal and a threshold signal to generate a first current and to generate a second current in response to a load transient, a charging circuit connected with the first current to generate a charging voltage, a driver to compare the charging voltage with two reference signals to generate a pair of low-side and high-side driving signals, and a fast response circuit to compare a load transient signal corresponding to the second current with a third reference signal to generate a bypass signal to drive the output stage of the converter in the load transient.
摘要翻译： DC-DC转换器包括用于感测转换器的输出电压以产生反馈信号的感测电路，用于放大反馈信号和阈值信号之间的差异的跨导放大器以产生第一电流并产生第二电流响应于负载瞬变的电流，与第一电流连接以产生充电电压的充电电路，将充电电压与两个参考信号进行比较的驱动器，以产生一对低侧和高侧驱动信号，以及快速响应电路，将与第二电流相对应的负载瞬态信号与第三参考信号进行比较，以产生旁路信号，以在负载瞬变中驱动转换器的输出级。

7. 发明申请

US20060049815A1 Current feed-through adaptive voltage position control for a voltage regulator 失效
标题翻译：电压调节器的电流馈通自适应电压位置控制
公开(公告)号：US20060049815A1
公开(公告)日：2006-03-09
申请号：US11220561
申请日：2005-09-08
申请人： Hsin-Hsin Ho , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Jiun-Chiang Chen
发明人： Hsin-Hsin Ho , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Jiun-Chiang Chen
IPC分类号： G05F1/40
CPC分类号： H02M3/158 , H02M2001/0019
摘要： In a voltage regulator including an error amplifier to generate a first signal related to an output voltage of the voltage regulator, a current sense circuit to generate a second signal related to an inductor current of the voltage regulator, and a PWM comparator to generate a PWM signal in response to the first and second signals to regulate the output voltage, a current feed-through adaptive voltage position control comprises supplying ramp signal and offset signal to modify the PWM signal to thereby elliminate the offset of the output voltage.
摘要翻译：在包括用于产生与电压调节器的输出电压相关的第一信号的误差放大器的电压调节器中，产生与电压调节器的电感器电流相关的第二信号的电流感测电路和用于产生PWM的PWM比较器响应于第一和第二信号来调节输出电压的信号，电流馈通自适应电压位置控制包括提供斜坡信号和偏移信号以修改PWM信号，从而使输出电压的偏移得以净化。

8. 发明授权

US06801030B2 Current sense apparatus and method 失效
标题翻译：电流检测装置及方法
公开(公告)号：US06801030B2
公开(公告)日：2004-10-05
申请号：US10442084
申请日：2003-05-21
申请人： Liang-Pin Tai , Shwu-Liang Hsieh , Hung-I Wang , Jing-Meng Liu
发明人： Liang-Pin Tai , Shwu-Liang Hsieh , Hung-I Wang , Jing-Meng Liu
IPC分类号： G01R3300
CPC分类号： G01R19/0092 , H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A current sense apparatus and method comprises a common drain DMOSFET and a MOSFET connected in series between a high voltage and a low voltage to serve as an output stage. The DMOSFET produces a phase output current, a mirror current mirrored from the phase output current, and a sense voltage. A servo amplifier is connected with the mirror current and sense voltage to produce a current sense signal. Due to the mirror current from the DMOSFET proportional to the phase output current, the current sense apparatus senses the phase output current in a temperature independent manner.
摘要翻译：电流检测装置和方法包括在高电压和低电压之间串联连接的公共漏极DMOSFET和MOSFET，用作输出级。 DMOSFET产生相输出电流，从相输出电流镜像的镜电流和感测电压。伺服放大器与反射镜电流和感测电压连接，产生电流检测信号。由于来自DMOSFET的反射电流与相输出电流成比例，电流检测装置以独立于温度的方式感测相输出电流。

9. 发明授权

US06670794B1 Multi-phase DC-to-DC buck converter with multi-phase current balance and adjustable load regulation 失效
标题翻译：多相DC-DC降压转换器，具有多相电流平衡和可调负载调节功能
公开(公告)号：US06670794B1
公开(公告)日：2003-12-30
申请号：US10193119
申请日：2002-07-12
申请人： Hung-I Wang , Shwu-Liang Hsieh , Liang-Pin Tai , Jing-Meng Liu
发明人： Hung-I Wang , Shwu-Liang Hsieh , Liang-Pin Tai , Jing-Meng Liu
IPC分类号： G05F170
CPC分类号： H02M3/1584
摘要： To balance the current of individual channel as well as regulate the output voltage for a multi-phase DC-to-DC buck converter, the converter output voltage is sensed and compared with a reference signal to produce a first error signal serving as first control signal for PWM signals of the converter and the channel currents are sensed, summed, averaged and subtracted to produce second error signals that are further modified by saw-tooth wave signal to produce second control signals for the PWM signals. Moreover, the reference signal is controlled by the summed channel currents for adjustable load regulation.
摘要翻译：为了平衡单个通道的电流以及调节多相DC-DC降压转换器的输出电压，转换器输出电压被检测并与参考信号进行比较，以产生用作第一控制信号的第一误差信号对于转换器的PWM信号和通道电流被感测，相加，平均和相减，以产生第二误差信号，其进一步被锯齿波信号修改以产生用于PWM信号的第二控制信号。此外，参考信号由可调负载调节的总和通道电流控制。

10. 发明授权

US07560917B2 Current feed-through adaptive voltage position control for a voltage regulator 失效
标题翻译：电压调节器的电流馈通自适应电压位置控制
公开(公告)号：US07560917B2
公开(公告)日：2009-07-14
申请号：US11220561
申请日：2005-09-08
申请人： Hsin-Hsin Ho , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Jiun-Chiang Chen
发明人： Hsin-Hsin Ho , Liang-Pin Tai , Hung-I Wang , Jian-Rong Huang , Jiun-Chiang Chen
IPC分类号： G05F1/618
CPC分类号： H02M3/158 , H02M2001/0019
摘要： In a voltage regulator including an error amplifier to generate a first signal related to an output voltage of the voltage regulator, a current sense circuit to generate a second signal related to an inductor current of the voltage regulator, and a PWM comparator to generate a PWM signal in response to the first and second signals to regulate the output voltage, a current feed-through adaptive voltage position control comprises supplying ramp signal and offset signal to modify the PWM signal to thereby eliminate the offset of the output voltage.
摘要翻译：在包括用于产生与电压调节器的输出电压相关的第一信号的误差放大器的电压调节器中，产生与电压调节器的电感器电流相关的第二信号的电流感测电路和用于产生PWM的PWM比较器信号响应于第一和第二信号以调节输出电压，电流馈通自适应电压位置控制包括提供斜坡信号和偏移信号以修改PWM信号，从而消除输出电压的偏移。

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