公开(公告)号：US09000741B2

公开(公告)日：2015-04-07

申请号：US13802790

申请日：2013-03-14

Applicant: uPI Semiconductor Corp.

Inventor： Hua-Chiang Huang

IPC: G05F1/44 ,  G05F1/46

CPC classification number: G05F1/468 ,  H02M3/1584 ,  H02M2001/0003

Abstract: A multi-phase DC-DC converter and a controlling method thereof are provided. The multi-phase DC-DC converter includes a plurality of output units, a sensing unit, and a pulse width modulation (PWM) controller. Each of the output units is coupled to one corresponding output inductance of a plurality of output inductances, and each of the output units and the corresponding output inductance have a phase node therebetween. The sensing unit is coupled to the phase nodes to acquire output currents of all phases and provide a plurality of difference voltages that respectively represent current differences of the phases, wherein a value of each of the difference voltages is not zero. The PWM controller adjusts a duty cycle of a PWM signal of the corresponding output unit according to each difference voltage.

Abstract translation: 提供了一种多相DC-DC转换器及其控制方法。 多相DC-DC转换器包括多个输出单元，感测单元和脉冲宽度调制（PWM）控制器。 每个输出单元耦合到多个输出电感的一个对应的输出电感，并且每个输出单元和相应的输出电感在它们之间具有相位节点。 感测单元耦合到相位节点以获取所有相位的输出电流，并且提供分别表示相位的电流差的多个差分电压，其中每个差分电压的值不为零。 PWM控制器根据每个差分电压调整相应输出单元的PWM信号的占空比。

公开(公告)号：US20150077083A1

公开(公告)日：2015-03-19

申请号：US14264066

申请日：2014-04-29

Applicant: uPI Semiconductor Corp.

Inventor： Ya-Ping Chen

IPC: H02M3/158

CPC classification number: H02M3/156 ,  H02M2003/1566

Abstract: A ramp signal generating method and a generator thereof, and a pulse width modulation signal generator are provided. The ramp signal generating method includes following steps: receiving an error signal, wherein the error signal relates to an output voltage of a power converter; generating an error delayed signal according to the error signal; and providing a ramp signal according to the error signal and the error delayed signal. The ramp signal is phase leading and inverting compared to the error signal. The ramp signal serves to improve a response speed of the power converter.

Abstract translation: 提供斜坡信号生成方法及其发生器，以及脉宽调制信号发生器。 斜坡信号生成方法包括以下步骤：接收误差信号，其中误差信号与功率转换器的输出电压有关; 根据误差信号产生误差延迟信号; 并根据误差信号和误差延迟信号提供斜坡信号。 与误差信号相比，斜坡信号是相位前导和反相。 斜坡信号用于提高功率转换器的响应速度。

公开(公告)号：US20150048374A1

公开(公告)日：2015-02-19

申请号：US14305043

申请日：2014-06-16

Applicant: uPI semiconductor corp.

Inventor： Ping-Yuan Lin

IPC: H01L31/0376 ,  H01L31/20 ,  H01L31/105

CPC classification number: H01L31/03762 ,  H01L31/02005 ,  H01L31/02327 ,  H01L31/1055 ,  H01L31/202 ,  Y02E10/50 ,  Y02P70/521

Abstract: A light sensor and a manufacturing method thereof are disclosed. The light sensor is capable of being coupled to a carry object and includes a sensing chip and a plurality of conductive connecting elements. The sensing chip includes a first surface and a second surface opposite to each other. The sensing chip also includes a sensing unit disposed between the first surface and the second surface and at least partially exposed by a window formed on the second surface. The first surface faces the carry object when the light sensor is coupled to a carry object. The conductive connecting elements are disposed on the first surface and coupled to the sensing unit in order to couple the light sensor to the carry object.

Abstract translation: 公开了一种光传感器及其制造方法。 光传感器能够耦合到携带物体并且包括感测芯片和多个导电连接元件。 感测芯片包括彼此相对的第一表面和第二表面。 感测芯片还包括设置在第一表面和第二表面之间并且由形成在第二表面上的窗口至少部分地暴露的感测单元。 当光传感器耦合到携带物体时，第一表面面向携带物体。 导电连接元件设置在第一表面上并且耦合到感测单元，以将光传感器耦合到携带物体。

公开(公告)号：US20150022170A1

公开(公告)日：2015-01-22

申请号：US14259168

申请日：2014-04-23

Applicant: uPI Semiconductor Corp.

Inventor： Wei-Ling Chen

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2001/0006 ,  H03K2217/0063 ,  H03K2217/0072 ,  H03K2217/0081

Abstract: A driver and a driving control method for a power converter are provided. The driver includes a level shift circuit, a negative voltage generator and a first PMOS transistor. The level shift circuit provides an output signal, wherein the output signal has a first operation voltage and a second operation voltage. When the output signal received by the negative voltage generator is the first operation voltage, the negative voltage generator outputs the first operation voltage. When the output signal received by the negative voltage generator is the second operation voltage, the negative voltage generator generates and outputs a third operation voltage, and the third operation voltage is lower than the second operation voltage. A control terminal of the first PMOS transistor is coupled to an output terminal of the negative voltage generator. An output terminal of the first PMOS transistor provides a driving voltage.

Abstract translation: 提供了一种用于功率转换器的驱动器和驱动控制方法。 驱动器包括电平移位电路，负电压发生器和第一PMOS晶体管。 电平移位电路提供输出信号，其中输出信号具有第一操作电压和第二操作电压。 当由负电压发生器接收到的输出信号是第一操作电压时，负电压发生器输出第一操作电压。 当由负电压发生器接收到的输出信号是第二操作电压时，负电压发生器产生并输出第三操作电压，并且第三操作电压低于第二操作电压。 第一PMOS晶体管的控制端子耦合到负电压发生器的输出端子。 第一PMOS晶体管的输出端提供驱动电压。

公开(公告)号：US20140340091A1

公开(公告)日：2014-11-20

申请号：US14253884

申请日：2014-04-16

Applicant: uPI Semiconductor Corp.

Inventor： Sei-Ching Yang

IPC: G01R31/36

CPC classification number: G01R31/367 ,  G01R31/374 ,  G01R31/3842

Abstract: A method for measuring electric charge of a battery is provided. The method includes the following steps. A lookup table is provided that stores a plurality of preset measurement confirmation voltages and a plurality of set electric charge. A first voltage of the battery is measured as a start point. An end point is calculated according to the lookup table and the start point. A voltage and a current of the battery are measured until a measured voltage reaches a preset measurement confirmation voltage corresponding to the end point. A set electric charge is calculated according to the lookup table from the start point to the end point. An actual electric charge is calculated from the start point to the end point. The set electric charge is corrected according to a difference between the actual electric charge and the set electric charge.

Abstract translation: 提供了一种用于测量电池电荷的方法。 该方法包括以下步骤。 提供了存储多个预设测量确认电压和多个设定电荷的查找表。 测量电池的第一电压作为起始点。 根据查找表和起始点计算终点。 测量电池的电压和电流，直到测量电压达到对应于终点的预设测量确认电压。 根据从起点到终点的查找表计算设定的电荷。 从起始点到终点计算实际电荷。 根据实际电荷与设定电荷之间的差异来校正设定电荷。

公开(公告)号：US20140333278A1

公开(公告)日：2014-11-13

申请号：US14164274

申请日：2014-01-27

Applicant: uPI Semiconductor Corp.

Inventor： Chih-Lien Chang

IPC: H02M3/158

CPC classification number: H02M3/156 ,  H02M3/1584

Abstract: A DC-DC controller and a multi-ramp signal operating method thereof are provided. The DC-DC controller includes a ramp generating unit, a comparator, a logic circuit and a switch unit. The ramp generating unit generates a first interior-ramp signal and a second interior-ramp signal alternately. The logic circuit generates the first and second control signals according to a comparison signal of the comparator. The switch unit is configured to switch one of the first interior-ramp signal and the second interior-ramp signal alternately to a second terminal of the comparator according to the first and second control signals. When the second interior-ramp signal is switched to the comparator, the first interior-ramp signal is charged to a first voltage level by the ramp generating unit. In another switch procedure, the second interior-ramp signal is charged to a second voltage level by the ramp generating unit.

Abstract translation: 提供DC-DC控制器及其多斜坡信号操作方法。 DC-DC控制器包括斜坡发生单元，比较器，逻辑电路和开关单元。 斜坡发生单元交替地产生第一内部斜坡信号和第二内部斜坡信号。 逻辑电路根据比较器的比较信号产生第一和第二控制信号。 开关单元被配置为根据第一和第二控制信号将第一内部斜坡信号和第二内部斜坡信号之一交替地切换到比较器的第二端子。 当第二内部斜坡信号切换到比较器时，第一内部斜坡信号通过斜坡发生单元被充电到第一电压电平。 在另一个开关过程中，第二内部斜坡信号由斜坡发生单元充电到第二电压电平。

公开(公告)号：US20140218004A1

公开(公告)日：2014-08-07

申请号：US13798147

申请日：2013-03-13

Applicant: UPI SEMICONDUCTOR CORP.

Inventor： Hung-Hsuan Cheng ,  Wei-Ling Chen

IPC: G05F3/02

CPC classification number: G05F3/02 ,  G06F1/22

Abstract: An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current, wherein a value of the programmable reference current is related to the programmable reference voltage.

Abstract translation: 提供具有多功能参数设定的集成电路及其多功能参数设定方法。 多功能参数设定方法包括以下步骤：提供集成电路，其中所述集成电路包括多功能引脚和开关单元，其中所述多功能引脚耦合到外部设置单元，并且所述开关单元 包括运算放大器; 通过开关单元的一个操作来感测外部设置单元的可编程参考电压，并根据可编程参考电压执行第一功能设置; 以及通过所述开关单元的另一操作来感测与所述外部设置单元相关的可编程参考电流，并且根据所述可编程参考电流执行第二功能设置，其中所述可编程参考电流的值与所述可编程参考电压相关。

公开(公告)号：US20140197739A1

公开(公告)日：2014-07-17

申请号：US14155441

申请日：2014-01-15

Applicant: UPI SEMICONDUCTOR CORP.

Inventor： Wen-Fu Lu

IPC: H02H7/12 ,  H05B33/08

CPC classification number: H02H7/1213 ,  H02H9/041 ,  H05B33/0815 ,  H05B33/0887 ,  Y02B20/341 ,  Y02B20/347

Abstract: A protection circuit of a DC-DC converter is disclosed. An input terminal of the DC-DC converter receives an input voltage and an output terminal of the DC-DC converter provides an output voltage. The DC-DC converter includes an output stage between the input terminal and the output terminal The protection circuit includes a current sensor, a comparator, a determining circuit, and a protection control circuit. The current sensor provides a sensing signal. The comparator compares a default over-voltage with the sensing signal to provide an over-current control signal. The determining circuit provides a determining control signal. The protection control circuit determines whether to enable a short protection according to the over-current control signal and the determining control signal.

Abstract translation: 公开了一种DC-DC转换器的保护电路。 DC-DC转换器的输入端接收输入电压，DC-DC转换器的输出端提供输出电压。 DC-DC转换器包括输入端和输出端之间的输出级。保护电路包括电流传感器，比较器，确定电路和保护控制电路。 电流传感器提供感测信号。 比较器将默认过电压与感测信号进行比较，以提供过电流控制信号。 确定电路提供确定控制信号。 保护控制电路根据过电流控制信号和确定控制信号来判定是否能够进行短路保护。

公开(公告)号：US20140131551A1

公开(公告)日：2014-05-15

申请号：US14072864

申请日：2013-11-06

Applicant: uPI Semiconductor Corp.

Inventor： Ping-Yuan Lin ,  Chih-Chang Wei

IPC: G01S7/497

CPC classification number: G01S7/497 ,  G01S7/4813 ,  G01S17/026

Abstract: A proximity sensor includes a proximity sensing unit and a signal processing unit. The proximity sensing unit detects whether an object to be detected is close by to obtain a measured value. The signal processing unit compares the measured value with an initial noise cross-talk value to determine whether the initial noise cross-talk value should be updated. If the determined result of the signal processing unit is no, the signal processing unit compares the measured value with a default value to determine whether the object to be detected is located in a detection range of the proximity sensing unit.

Abstract translation: 接近传感器包括接近感测单元和信号处理单元。 接近感测单元检测待检测物体是否靠近以获得测量值。 信号处理单元将测量值与初始噪声串扰值进行比较，以确定是否应更新初始噪声串扰值。 如果信号处理单元的确定结果为否，则信号处理单元将测量值与默认值进行比较，以确定被检测对象是否位于接近感测单元的检测范围内。

公开(公告)号：US12074520B2

公开(公告)日：2024-08-27

申请号：US17812470

申请日：2022-07-14

Applicant: uPI semiconductor corp.

Inventor： Yow-Tsyr Liang ,  Heng-Li Lin

IPC: H02M3/158 ,  G01R19/00 ,  H02M1/00 ,  H02M3/157

CPC classification number: H02M3/158 ,  G01R19/0092 ,  H02M1/0009 ,  H02M1/0032 ,  H02M3/157

Abstract: A smart power stage module includes an output stage and a driving circuit. The output stage includes a low-side switch and provides an output current. The driving circuit controls an operation of the output stage according to a PWM signal. The driving circuit includes a determination circuit generating a control signal according to the PWM signal and a signal combination circuit providing a current monitoring signal representing the output current. The current monitoring signal is a combination of a simulated current signal and an actual sensed current signal. The signal combination circuit includes a switching circuit switching according to the control signal to adjust a proportion of simulated current signal and actual sensed current signal. When the on-time period part of low-side switch is shorter than a default time period, the switching circuit shortens duration of simulated current signal in the current monitoring signal according to the control signal.