公开(公告)号：JP5274527B2

公开(公告)日：2013-08-28

申请号：JP2010204295

申请日：2010-09-13

Applicant: 株式会社東芝

Inventor： 祐一 後藤

IPC: H02M3/155

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

Abstract: In general, according to one embodiment, a DC-to-DC converter includes a high-side switch, a low-side switch, a diode, a high-side controller and a low-side controller. The low-side switch is connected in series with the high-side switch. The diode is connected in parallel with the low-side switch. The high-side controller has a detector for detecting a current of the high-side switch and controls the high-side switch to be turned on or off in accordance with an output of the detector. The low-side controller controls the low-side switch to be turned off when the high-side switch is ON and controls the low-side switch to be turned on or off in accordance with a peak value of the output of the detector when the high-side switch is OFF.

公开(公告)号：JP5216888B2

公开(公告)日：2013-06-19

申请号：JP2011067172

申请日：2011-03-25

Applicant: 株式会社東芝

Inventor： 野 武 司 上 ,  倉 哲 朗 板

IPC: H02M3/155

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: The high-side switch has one end connected to the input terminal. The low-side switch has one end connected to other end of the high-side switch and other end connected to a ground terminal. The inductor has one end connected to the other end of the high-side switch and other end connected to the output terminal. The capacitor has one end connected to the other end of the inductor and other end connected to the ground terminal. The high-side switch controlling circuit generates and supplies a high-side switch controlling signal based on a target voltage of the output terminal, the output voltage of the output terminal, and a current flowing through the capacitor, to the high-side switch. The low-side switch controlling circuit generates and supplies a low-side switch controlling signal based on the high-side switch controlling signal and a current flowing through the inductor, to the low-side switch.

公开(公告)号：JP2013523064A

公开(公告)日：2013-06-13

申请号：JP2012557051

申请日：2011-02-03

Applicant: フリースケール セミコンダクター インコーポレイテッド

Inventor： エム． ピゴット、ジョン

IPC: H02M3/155

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: ＤＣ−ＤＣコンバータ（１０）において、入力電圧（Ｖ
ＩＮ ）がインダクタ（１６）を介して入力端子（４２）において受け取られ、積分器のコンデンサ（１８）上に蓄積される。 入力端子（４２）と接地のような基準端子との間に第１のスイッチ（１４）が結合され、それによって、インダクタ（１６）に磁束を発生させる。 コンデンサ上に蓄積されている入力電圧が、積分器回路、および入力電圧の初期値によって決定される割合で降下する。 或る期間の後、第１のスイッチ（１４）が非伝導性になる。 ダイオードにわたる第２のスイッチ（３４）が伝導性になるまで、インダクタ（１６）からダイオード（３６）を通じて出力端子に電流が流れる。 第２のスイッチ（３４）が伝導性になるのに応答して、積分器のコンデンサ（１８）上に蓄積されている電圧が増大する。 コンデンサ（１８）上に蓄積されている電圧が基準電圧（Ｖ
ＩＮ ）と連続的に比較される。 コンデンサ（１８）上に蓄積されている電圧が基準電圧を超えると、第２のスイッチ（３４）が非伝導性になる。

公开(公告)号：JP2013085448A

公开(公告)日：2013-05-09

申请号：JP2012144566

申请日：2012-06-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KOMIYA KENJI ,  WAKAO SHUJI ,  SHIBATA AKIHIDE ,  IWATA HIROSHI

IPC: H02M3/155 ,  H02M3/28 ,  H02M7/48 ,  H02M7/5387

CPC classification number: H02M1/088 ,  H02M3/1582 ,  H02M3/1588 ,  H02M7/5387 ,  H02M2001/0051 ,  Y02B70/1466 ,  Y02T10/7258

Abstract: PROBLEM TO BE SOLVED: To provide a switching power supply apparatus capable of achieving high efficiency and cost reduction.SOLUTION: The inverter includes high breakdown voltage transistors 1, 3, 5, 7 and low breakdown voltage transistors 2, 4, 6, 8. The transistors 1-8 include parasitic diodes 1a-8a. For example, a voltage higher than a threshold voltage is applied to gates of the transistors 1, 3, 5, 7, the transistors 2, 8 are turned off, the transistor 6 is turned on and the transistor 4 turned on/off. Few electric currents run through the parasitic diodes 1a, 3a of the high breakdown voltage transistors 1, 3; therefore, recovery currents of the high breakdown voltage transistors 1, 3 are small.

Abstract translation: 解决的问题：提供能够实现高效率和降低成本的开关电源装置。

解决方案：逆变器包括高击穿电压晶体管1,3,5,7和低击穿电压晶体管2,4,6,8。晶体管1-8包括寄生二极管1a-8a。 例如，将高于阈值电压的电压施加到晶体管1,3,5,7的栅极，晶体管2,8截止，晶体管6导通，晶体管4导通/截止。 几个电流流过高击穿电压晶体管1,3的寄生二极管1a，3a; 因此，高击穿电压晶体管1,3的恢复电流很小。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP5186925B2

公开(公告)日：2013-04-24

申请号：JP2008004146

申请日：2008-01-11

Applicant: 株式会社リコー

Inventor： 敏久 永田

IPC: H01L21/822 ,  G01R31/28 ,  G05F1/56 ,  H01L21/82 ,  H01L27/04 ,  H02M3/155

CPC classification number: H02M3/156 ,  G01R31/2884 ,  H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

公开(公告)号：JP2013074635A

公开(公告)日：2013-04-22

申请号：JP2011209702

申请日：2011-09-26

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： SAITO HIROSHI ,  GOTO YUICHI

IPC: H02M3/155

CPC classification number: H02M3/1588 ,  H02M3/1584 ,  H02M2001/0003 ,  Y02B70/1466

Abstract: PROBLEM TO BE SOLVED: To provide a DC-DC converter that generates a DC output voltage by operating a plurality of DC-DC conversion sections evenly.SOLUTION: The DC-DC converter includes: the plurality of DC-DC conversion sections for converting a DC input voltage to rectangular wave voltages; a plurality of inductor elements having ends on one side connected to output terminals of the plurality of DC-DC conversion sections and ends on the other side connected to a common external output terminal; a plurality of duty detection circuits connected to the respective output terminals of the plurality of DC-DC conversion sections to detect duty ratios of the rectangular wave voltages output from the corresponding DC-DC conversion sections; and a duty adjustment circuit for comparing each set of two output signals of the plurality of duty detection circuits, and accordingly adjusting the duty ratio of the DC-DC conversion section connected to one of the set of duty detection circuits such that the duty ratios of the set of rectangular wave voltages become equal to each other.

Abstract translation: 要解决的问题：提供通过均匀地操作多个DC-DC转换部来产生DC输出电压的DC-DC转换器。 解决方案：DC-DC转换器包括：用于将DC输入电压转换为矩形波电压的多个DC-DC转换部分; 多个电感器元件，其一端具有连接到所述多个DC-DC转换部的输出端的端部，并且在连接到公共外部输出端子的另一侧端部; 多个占空比检测电路，连接到多个DC-DC转换部分的各个输出端，以检测从相应的DC-DC转换部分输出的矩形波电压的占空比; 以及占空比调整电路，用于对多个占空比检测电路的两组输出信号进行比较，从而调整与一组占空比检测电路连接的DC-DC转换部的占空比， 该组矩形波电压彼此相等。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP5185604B2

公开(公告)日：2013-04-17

申请号：JP2007317912

申请日：2007-12-10

Applicant: インターナショナル レクティフィアー コーポレイション

Inventor： エー ブリエール マイケル

IPC: H01L21/8232 ,  H01L21/338 ,  H01L21/822 ,  H01L27/04 ,  H01L27/06 ,  H01L27/095 ,  H01L29/778 ,  H01L29/812 ,  H02M3/155

CPC classification number: G05F1/10 ,  H01L21/8258 ,  H01L27/0211 ,  H01L27/0605 ,  H01L29/2003 ,  H01L29/7787 ,  H02M3/155 ,  H02M3/1588 ,  Y02B70/1466

Abstract: A power arrangement that includes a monolithically integrated III-nitride power stage having III-nitride power switches and III-nitride driver switches.

公开(公告)号：JP2013055620A

公开(公告)日：2013-03-21

申请号：JP2011194349

申请日：2011-09-06

Applicant: Hitachi Automotive Systems Ltd ,  日立オートモティブシステムズ株式会社

Inventor： HIROTSU TEPPEI ,  KANEKAWA NOBUYASU ,  ISHIDA RYOSUKE ,  YAMADA TSUTOMU ,  SATO CHIHIRO

IPC: H03K17/695 ,  H03K7/08

CPC classification number: H02M7/53803 ,  H02M3/1588 ,  H02M7/5395 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: PROBLEM TO BE SOLVED: To provide a compact and low-cost current control device even in the case of a multi-channel configuration using a microcomputer and a current control IC.SOLUTION: The current control device includes: a current control semiconductor element 1; and a microcomputer 12 for outputting to the current control semiconductor element 1 a PWM pulse to drive a load, and for inputting from the current control semiconductor element the outputs of a high-side current detection circuit 6 and a low-side current detection circuit 7. For synchronization with the PWM pulse, an output synthesis circuit 8 of the current control semiconductor element 1 switches between the output of the high-side current detection circuit 6 and the output of the low-side current detection circuit 7 on one signal line, to output it to the microcomputer 12.

Abstract translation: 要解决的问题：即使在使用微型计算机和电流控制IC的多通道配置的情况下，也提供紧凑且低成本的电流控制装置。 电流控制装置包括：电流控制半导体元件1; 以及微电脑12，向电流控制半导体元件1输出驱动负载的PWM脉冲，并且从电流控制半导体元件输入高边电流检测电路6和低侧电流检测电路7的输出 为了与PWM脉冲同步，电流控制半导体元件1的输出合成电路8在一条信号线上切换高边电流检测电路6的输出和低侧电流检测电路7的输出， 将其输出到微型计算机12.版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013046390A

公开(公告)日：2013-03-04

申请号：JP2011185216

申请日：2011-08-26

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： OGAWA TAICHI ,  FURUTA MASANORI

IPC: H03M1/10

CPC classification number: H03M1/1019 ,  H02M3/1588 ,  H02M2001/0012 ,  H03M1/12 ,  Y02B70/1466

Abstract: PROBLEM TO BE SOLVED: To cancel a DC offset of an AD conversion device including single-ended-to-differential conversion without requiring two reference analog signals.SOLUTION: According to an embodiment, an AD conversion device includes: a first terminal for receiving reference voltage signals; a single-ended-to-differential conversion circuit for performing single-ended-to-differential conversion on the reference voltage signals to produce first differential signals; an AD converter for performing AD conversion on the first differential signals on the basis of the reference voltage signals to produce a first digital signal; a digital circuit for detecting a DC offset that is a difference between the first digital signal and a digital signal representing a predetermined code; and a second terminal for receiving input signals. The single-ended-to-differential conversion circuit performs single-ended-to-differential conversion on the input signals to acquire second differential signals, the AD converter performs AD conversion on the second differential signals on the basis of the reference voltage signals to acquire a second digital signal, and the digital circuit subtracts the DC offset from the second digital signal to produce a third digital signal and outputs the third digital signal.

Abstract translation: 要解决的问题：在不需要两个参考模拟信号的情况下取消包括单端到差分转换的AD转换装置的DC偏移。 解决方案：根据实施例，AD转换装置包括：用于接收参考电压信号的第一端子; 用于对参考电压信号执行单端到差分转换以产生第一差分信号的单端到差分转换电路; AD转换器，用于基于参考电压信号对所述第一差分信号执行AD转换，以产生第一数字信号; 用于检测作为所述第一数字信号和表示预定码的数字信号之间的差的DC偏移的数字电路; 以及用于接收输入信号的第二终端。 单端到差分转换电路对输入信号进行单端到差分转换以获取第二差分信号，AD转换器根据参考电压信号对第二差分信号执行AD转换以获取 第二数字信号，并且数字电路从第二数字信号中减去DC偏移以产生第三数字信号并输出​​第三数字信号。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JPWO2010143511A1

公开(公告)日：2012-11-22

申请号：JP2011518385

申请日：2010-05-20

Applicant: 本田技研工業株式会社

Inventor： 智明 中川 ,  智明 中川

IPC: H02M3/155 ,  H02M7/48

CPC classification number: H02M7/53871 ,  H02M3/156 ,  H02M3/1588 ,  H02M7/797 ,  H02M2001/0035 ,  H02M2001/007 ,  H02P27/08 ,  H02P2201/07 ,  Y02B70/1466 ,  Y02B70/16

Abstract: 変圧器及び負荷を含む負荷駆動システム全体の損失に応じて変圧器を制御する制御装置を提供すること。直流電源の出力電圧を昇圧又は降圧して負荷に印加する変圧器の制御装置は、変圧器をスイッチング制御するスイッチング制御部と、負荷電力を導出する負荷電力導出部と、負荷電力導出部が導出した負荷電力及び変圧器の変圧比に基づいて、スイッチング制御部が変圧器を間欠制御した際に変圧器で発生する損失の低減量を導出する変圧器損失低減量導出部と、スイッチング制御部が変圧器を間欠制御した際に負荷で発生する損失の増加量を導出する負荷損失増加量導出部と、変圧器損失低減量導出部によって導出された変圧器損失低減量が負荷損失増加量導出部によって導出された負荷損失増加量より大きいとき、スイッチング制御部が変圧器を間欠制御するよう指示する制御指示部とを備える。