公开(公告)号：US20140032942A1

公开(公告)日：2014-01-30

申请号：US13953306

申请日：2013-07-29

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Yuji TAKEHARA ,  Koji SAIKUSA ,  Ryotaro KUDO ,  Toshio NAGASAWA

IPC: H02M3/156 ,  G06F1/26

CPC classification number: H02M3/156 ,  G06F1/26 ,  H02M3/1584 ,  H02M2001/0019

Abstract: A voltage regulator has a voltage converter circuit and a control unit. The control unit controls the voltage converter circuit so that an output voltage attains a target voltage when the voltage regulator is in a no-load condition so as to have a transition characteristic in which the output voltage decreases with increase in the load current. The control unit calculates deviation between the output voltage and an ideal value thereof when a load condition of the voltage regulator is a first load condition, and corrects the target voltage by the output voltage adjustment unit. so The control unit also calculates deviation between rate of change of the output voltage with respect to the load current and an ideal value thereof, and corrects the transition characteristic so that the deviation becomes small to minimize deviation.

Abstract translation: 电压调节器具有电压转换器电路和控制单元。 控制单元控制电压转换器电路，使得当电压调节器处于空载状态时，输出电压达到目标电压，从而具有输出电压随着负载电流的增加而降低的转变特性。 当电压调节器的负载条件为第一负载条件时，控制单元计算输出电压与其理想值之间的偏差，并且通过输出电压调节单元校正目标电压。 因此，控制单元还计算输出电压相对于负载电流的变化率和理想值之间的偏差，并且校正转移特性使得偏差变小以使偏差最小化。

公开(公告)号：US20140191737A1

公开(公告)日：2014-07-10

申请号：US14096499

申请日：2013-12-04

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Toshio NAGASAWA ,  Yoshitaka ONAYA ,  Koji SAIKUSA ,  Shin CHIBA

IPC: H02M3/158 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.

Abstract translation: 根据本发明的电源装置包括电感器，晶体管，其将导通状态的电流提供给电感器的输入侧;第二晶体管，当第一晶体管处于截止状态时， 导通状态，从而使电感器的输入侧达到预定电位;产生与流过电感的电流相对应的电压信号的信号产生单元，根据电压信号输出电流的放大器;转换器 其将来自放大器的电流输出转换为电压信号，以及控制单元，其基于与电感器的输出侧上的电压和电压信号相对应的第一反馈信号来控制晶体管，该电压信号用作第二反馈 信号。

公开(公告)号：US20140173302A1

公开(公告)日：2014-06-19

申请号：US14187502

申请日：2014-02-24

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Ryotaro KUDO ,  Tomoaki UNO ,  Koji TATENO ,  Hideo ISHII ,  Kazuyuki UMEZU ,  Koji SAIKUSA

IPC: H02M3/158 ,  G06F1/26

CPC classification number: H02M3/158 ,  G06F1/26 ,  H02M3/1584 ,  H02M2003/1586

Abstract: Miniaturization of a multiphase type power supply device can be achieved. A power supply control unit in which, for example, a microcontroller unit, a memory unit and an analog controller unit are formed over a single chip, a plurality of PWM-equipped drive units, and a plurality of inductors configure a multiphase power supply. The microcontroller unit outputs clock signals each having a frequency and a phase defined based on a program on the memory unit to the respective PWM-equipped drive units. The analog controller unit detects a difference between a voltage value of a load and a target voltage value acquired via a serial interface and outputs an error amp signal therefrom. Each of the PWM-equipped drive units drives each inductor by a peak current control system using the clock signal and the error amp signal.

Abstract translation: 可以实现多相电源装置的小型化。 电源控制单元，其中例如在单个芯片上形成微控制器单元，存储单元和模拟控制器单元，多个配备PWM的驱动单元和多个电感器构成多相电源。 微控制器单元输出每个具有基于存储器单元上的程序定义的频率和相位到相应的配备有PWM的驱动单元的时钟信号。 模拟控制器单元检测负载的电压值与通过串行接口获取的目标电压值之间的差值，并输出误差放大器信号。 每个配备PWM的驱动单元通过使用时钟信号和误差放大器信号的峰值电流控制系统驱动每个电感器。

公开(公告)号：US20150249387A1

公开(公告)日：2015-09-03

申请号：US14711995

申请日：2015-05-14

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Toshio NAGASAWA ,  Yoshitaka ONAYA ,  Koji SAIKUSA ,  Shin CHIBA

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M3/1584 ,  H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power-supply apparatus according to an aspect includes an inductor, a transistor that supplies, in an on-state, a current to the input side of the inductor, a second transistor that becomes, when the first transistor is in an off-state, an on-state and thereby brings the input side of the inductor to a predetermined potential, a signal generation unit that generates voltage signals corresponding to a current flowing to the inductor, an amplifier that outputs a current according to the voltage signals, a converter that converts the current output from the amplifier into a voltage signal, and a control unit that controls the transistors based on a first feedback signal corresponding to the voltage on the output side of the inductor and the voltage signal, which is used as a second feedback signal.

Abstract translation: 根据本发明的电源装置包括电感器，晶体管，其将导通状态的电流提供给电感器的输入侧;第二晶体管，当第一晶体管处于截止状态时， 导通状态，从而使电感器的输入侧达到预定电位;产生与流过电感的电流相对应的电压信号的信号产生单元，根据电压信号输出电流的放大器;转换器 其将来自放大器的电流输出转换为电压信号，以及控制单元，其基于与电感器的输出侧上的电压和电压信号相对应的第一反馈信号来控制晶体管，该电压信号用作第二反馈 信号。