公开(公告)号：US06798177B1

公开(公告)日：2004-09-28

申请号：US10272538

申请日：2002-10-15

申请人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih ,  George Hsieh

发明人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih ,  George Hsieh

IPC分类号： G05F1613

CPC分类号： H02M3/1582 ,  H02M2001/007

摘要： A power converter including a first stage, a reservoir capacitor and a second stage. The first stage converts the voltage of a primary energy source, such as a battery, to a voltage on the reservoir capacitor, which stores a large amount of energy in the form of a voltage substantially larger than the voltage of the primary energy source. The second stage converts the voltage on the reservoir capacitor to a substantially constant voltage for a load device that demands current having the form of large, short, current pulses. The cascaded converter prevents the pulsating load currents of the load device, such as a GSM power amplifier, from causing a severe voltage loss at the battery. This increases the power available from the battery and reduces loses from the internal resistance of the battery.

摘要翻译： 一种功率转换器，包括第一级，储存电容器和第二级。 第一阶段将诸如电池的一次能源的电压转换为储存电容器上的电压，其存储大量能量，其形式的电压基本上大于一次能源的电压。 第二阶段将储层电容器上的电压转换为需要具有大的，短的电流脉冲形式的电流的负载装置的基本恒定的电压。 级联转换器可以防止诸如GSM功率放大器之类的负载装置的脉动负载电流在电池上造成严重的电压损失。 这增加了电池的可用功率，并减少了电池的内部电阻的损失。

公开(公告)号：US06707280B1

公开(公告)日：2004-03-16

申请号：US10238078

申请日：2002-09-09

申请人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih

发明人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih

IPC分类号： G05F1618

CPC分类号： G05F1/618

摘要： A voltage regulator for providing a bidirectional current and a regulated voltage to a load. The voltage regulator regulates the output voltage at one half the level of the input voltage using a voltage doubler circuit in reverse. The regulator provides current to the load when the output voltage drops and receives current from the load when the output voltage rises. The voltage regulator is particularly suited to supplying a termination voltage to multiple line drivers in a DDR DRAM system, where the line drives require an active termination voltage to reduce power. Additionally, a pair of linear regulators, one for clamping the output voltage at a predetermined low voltage level and for supplying additional current demanded by the load, and the other for clamping the output voltage at a predetermined high voltage level and for receiving additional current supplied by the load, is included.

摘要翻译： 用于向负载提供双向电流和调节电压的电压调节器。 电压调节器使用相反的倍压器电路将输出电压调节到输入电压电平的一半。 当输出电压下降时，稳压器向负载提供电流，并在输出电压上升时从负载接收电流。 电压调节器特别适用于向DDR DRAM系统中的多个线路驱动器提供终端电压，其中线路驱动器需要主动终端电压以降低功率。 另外，一对线性稳压器，一个用于将输出电压钳位在预定的低电压电平并用于提供由负载所需的额外电流，另一个用于将输出电压钳位在预定的高电压电平并用于接收所提供的附加电流 通过负载被包括。

公开(公告)号：US06861824B1

公开(公告)日：2005-03-01

申请号：US10193381

申请日：2002-07-10

申请人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih

发明人： Kwang H. Liu ,  Sorin L. Negru ,  Fu-Yuan Shih

IPC分类号： H02J7/00 ,  H02J7/06

CPC分类号： H02J7/0068

摘要： A charging system that concurrently charges a main system and a battery for powering the main system when the charging system is connected to an adapter. The charging system includes a current sensing resistor, a first current control circuit for regulating the current in a linear battery charger and a second current control circuit for controlling the maximum adapter current. The charging system further includes a first temperature control circuit for regulating the current in the battery charger and a second temperature control circuit for controlling the maximum power dissipation of the charging system. The charging system further includes a linear regulator for providing power to the main system from the adapter and a main system voltage control circuit and a battery voltage control circuit. The charging system apportions the adapter current between the main system and the battery charger giving priority to the main system.

摘要翻译： 充电系统，当充电系统连接到适配器时，同时对主系统和电池供电，为主系统供电。 充电系统包括电流检测电阻器，用于调节线性电池充电器中的电流的第一电流控制电路和用于控制最大适配器电流的第二电流控制电路。 充电系统还包括用于调节电池充电器中的电流的第一温度控制电路和用于控制充电系统的最大功率耗散的第二温度控制电路。 充电系统还包括线性调节器，用于从适配器向主系统供电，以及主系统电压控制电路和电池电压控制电路。 充电系统对主系统和电池充电器之间的适配器电流进行分配，优先考虑主系统。

公开(公告)号：US07057310B2

公开(公告)日：2006-06-06

申请号：US10377781

申请日：2003-03-04

申请人： Kwang H. Liu ,  Sorin L. Negru ,  Terry Groom ,  Fu-Yuan Shih ,  Te-Jen Hsieh

发明人： Kwang H. Liu ,  Sorin L. Negru ,  Terry Groom ,  Fu-Yuan Shih ,  Te-Jen Hsieh

IPC分类号： H01H35/00 ,  H02B1/24

CPC分类号： G05F1/575 ,  Y10T307/469 ,  Y10T307/832

摘要： A dual-output voltage regulator is disclosed, which provides a first terminal voltage and a second terminal voltage to DDR DRAM. The dual-output voltage regulator comprises a first regulator unit for receiving an input voltage and providing the first terminal voltage via a first transistor unit; and a second regulator unit for receiving the input voltage and the first terminal voltage in order to output the second terminal voltage, wherein the second terminal voltage is half of the first terminal voltage.

摘要翻译： 公开了一种双输出电压调节器，其向DDR DRAM提供第一端电压和第二端电压。 双输出电压调节器包括用于接收输入电压并经由第一晶体管单元提供第一端电压的第一调节器单元; 以及第二调节器单元，用于接收输入电压和第一端电压以输出第二端电压，其中第二端电压是第一端电压的一半。

公开(公告)号：US06903535B2

公开(公告)日：2005-06-07

申请号：US10414952

申请日：2003-04-16

申请人： Kwang H. Liu ,  Sorin L. Negru

发明人： Kwang H. Liu ,  Sorin L. Negru

IPC分类号： H02M3/158 ,  H03K17/06 ,  G05F1/652

CPC分类号： H03K17/063 ,  H02M3/1588 ,  H02M2001/008 ,  Y02B70/1466

摘要： A gate drive supply circuit generating a high-level supply voltage and a low-level supply voltage for driving N-type high-side and low-side power MOSFETs in a multiple-output, low-voltage DC-DC converter integrated circuit. The gate drive supply circuit includes a boost regulator for generating the low-level supply voltage and a charge pump doubler for generating the high-level supply voltage. Both the high-level supply voltage and the low-level supply voltage are distributed to one or more regulators, including but not limited to buck or boost type regulators.

摘要翻译： 在多输出低压DC-DC转换器集成电路中产生用于驱动N型高侧​​和低端功率MOSFET的高电平电源电压和低电平电源电压的栅极驱动电源电路。 栅极驱动电源电路包括用于产生低电平电源电压的升压调节器和用于产生高电平电源电压的电荷泵倍增器。 高电平电源电压和低电平电源都分配到一个或多个稳压器，包括但不限于降压或升压型稳压器。

公开(公告)号：US07417491B2

公开(公告)日：2008-08-26

申请号：US11643831

申请日：2006-12-22

申请人： Jean-Shin Wu ,  Sorin L. Negru

发明人： Jean-Shin Wu ,  Sorin L. Negru

IPC分类号： G05F1/10

CPC分类号： H02M3/07

摘要： A constant current output charge pump includes a switch module configured to compare a reference voltage with a load voltage and output a switch signal, a voltage margin control module configured to compare a first voltage and a second voltage with an output voltage and output a voltage margin control signal, a clock control module, a charge pump module, a current control module and a load module. The clock control module is configured to capture the switch signal and the voltage margin control signal and output a first clock signal and a second clock signal according to a system to the charge pump module for charging the input voltage.

摘要翻译： 恒定电流输出电荷泵包括开关模块，其被配置为将参考电压与负载电压进行比较并输出开关信号;电压余量控制模块，被配置为将第一电压和第二电压与输出电压进行比较，并输出电压余量 控制信号，时钟控制模块，电荷泵模块，电流控制模块和负载模块。 时钟控制模块被配置为捕获开关信号和电压余量控制信号，并且根据系统向电荷泵模块输出第一时钟信号和第二时钟信号，以对输入电压充电。