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11. 发明专利

JP2010507185A Method for driving a Ptc electrical load element 审中-公开
公开(公告)号：JP2010507185A
公开(公告)日：2010-03-04
申请号：JP2009507238
申请日：2007-04-16
申请人：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
发明人：アブーダ，キャメル , ギロ，ローレン , シュネル，ヨーゼフ , ストゥーラー，ノルベルト , ヘンスラー，ヘルムート , ヨース，ウリ , ロサド，フィリップ
IPC分类号： H05B37/02
CPC分类号： H05B39/02 , H05B39/047 , Y02B20/144
摘要：本発明の方法は、最も高い動作信頼性を有するスイッチングユニット（３）を有するＰＴＣ（ｐｏｓｉｔｉｖｅｔｅｍｐｅｒａｔｕｒｅｃｏｅｆｆｉｃｉｅｎｔ）電気的負荷要素（１）の駆動を可能にすることを目的とする。
このために、予め定められた電流閾値を上回る場合、電流はスイッチにより切断される。そして、電流閾値の大きさは、負荷要素の動作パラメータから決定される。

12. 发明专利

JP4321532B2 Lighting device for imaging device 有权
公开(公告)号：JP4321532B2
公开(公告)日：2009-08-26
申请号：JP2006034910
申请日：2006-02-13
申请人：ソニー株式会社
发明人：英二千原
IPC分类号： H04N5/238 , G03B15/02
CPC分类号： H04N5/2256 , H05B39/047 , Y02B20/144

13. 发明专利

JP2009033452A Load control apparatus 有权
标题翻译：负载控制装置
公开(公告)号：JP2009033452A
公开(公告)日：2009-02-12
申请号：JP2007194873
申请日：2007-07-26
申请人： Yazaki Corp , 矢崎総業株式会社
发明人： YABE HIROO , KUBOTA KAZUHIRO , TSUBAKI KAZUYA , SASAHARA MASAHITO
IPC分类号： H03K7/08 , H05B37/02
CPC分类号： H05B39/047 , H05B37/02
摘要： PROBLEM TO BE SOLVED: To obtain a high-precision PWM output and obtain miniaturization and cost reduction for an apparatus, without having to possess a constant-voltage source. SOLUTION: In a load control apparatus, a circuit composed of resisters R4, R5 and R6, and a transistor Q10 produces a triangular wave of reference voltage from a voltage VIN that originates from a vehicle battery 30; a capacitor C1 works for charge and discharge for producing a triangular wave by a constant current proportional to the voltage of the vehicle battery 30; a capacitor C2 series-connected to the capacitor C1 conducts charging and discharging in a reverse manner to that in the capacitor C1; a comparator CP1 compares a voltage (VC1) of the capacitor C1 with a reference voltage Vt1; the charge and discharge is switched in the capacitor C1 to produce a triangular wave; and a divisional voltage Vk obtained by resistance-dividing the voltage VIN is compared with the triangular wave voltage produced by the comparator CP1 by a comparator CP3 so as to produce a PWM pulse for driving a load 15. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得高精度PWM输出并且获得装置的小型化和降低成本，而不必具有恒定电压源。解决方案：在负载控制装置中，由电阻R4，R5和R6以及晶体管Q10构成的电路从源自车辆电池30的电压VIN产生参考电压的三角波; 电容器C1用于充电和放电，以通过与车辆电池30的电压成比例的恒定电流产生三角波; 与电容器C1串联连接的电容器C2以与电容器C1相反的方式进行充放电; 比较器CP1将电容器C1的电压（VC1）与参考电压Vt1进行比较; 在电容器C1中切换充电和放电以产生三角波; 并且通过电压VIN分压获得的分压Vk与由比较器CP3由比较器CP1产生的三角波电压进行比较，以产生用于驱动负载15的PWM脉冲。版权所有（C） 2009年，JPO＆INPIT

14. 发明专利

JP2008311765A Control circuit for semiconductor device with overheat protection function 有权
标题翻译：具有过热保护功能的半导体器件的控制电路
公开(公告)号：JP2008311765A
公开(公告)日：2008-12-25
申请号：JP2007155456
申请日：2007-06-12
申请人： Yazaki Corp , 矢崎総業株式会社
发明人： YABE HIROO , KUBOTA KAZUHIRO , SASAHARA MASAHITO
IPC分类号： H03K17/08 , H01L21/822 , H01L27/04 , H03K17/687
CPC分类号： H03K17/18 , H01L2924/0002 , H03K17/08122 , H03K2017/0806 , H05B39/047 , Y02B20/144 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To prevent deterioration or destruction of a semiconductor element with a simple structure. SOLUTION: Driving power for driving an overheat protecting means that includes a temperature detection circuit 83 for detecting a rise in temperature of one chip in which a MOSFET 81 as a semiconductor element for supplying power from a +B power source for a load by a PWM signal from an ECU 20 is switched on/off and which is mounted on the one chip from a power source circuit 30, a latch circuit 84 for holding a detection output of the temperature detection circuit 83, and a gate shutdown circuit 85 for shutting down a gate input of the MOSFET 81 in accordance with an output of the latch circuit 84 is supplied. The temperature detection circuit 83 operates to turn on the gate shutdown circuit 85 and protection operation by the gate shutdown of the MOSFET 81 is performed. When supply of the PWM signal from the ECU 20 stops, a timer circuit 40 as a timer means continues to supply the driving power by a power source circuit 30 just for a prescribed period. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止具有简单结构的半导体元件的劣化或破坏。解决方案：用于驱动过热保护的驱动功率意味着包括用于检测一个芯片的温度升高的温度检测电路83，其中，作为用于从负载的+ B电源供电的半导体元件的MOSFET 81 通过来自ECU20的PWM信号被接通/断开并从电源电路30安装在一个芯片上，用于保持温度检测电路83的检测输出的锁存电路84和门关断电路85 用于根据锁存电路84的输出关闭MOSFET81的栅极输入。温度检测电路83操作以接通栅极关断电路85，并且执行MOSFET 81的栅极关断的保护操作。当来自ECU20的PWM信号的供给停止时，作为定时器装置的定时器电路40继续通过电源电路30提供驱动电力达规定期间。版权所有（C）2009，JPO＆INPIT

15. 发明专利

JP2003052169A Load drive 审中-公开
标题翻译：负载驱动
公开(公告)号：JP2003052169A
公开(公告)日：2003-02-21
申请号：JP2001239524
申请日：2001-08-07
申请人： Yazaki Corp , 矢崎総業株式会社
发明人： TAMAI YASUHIRO , HASEGAWA TETSUYA
IPC分类号： H02M3/155 , B60R16/02 , B60R16/03 , H02J7/00 , H02M1/36 , H05B39/02 , H05B39/04
CPC分类号： H02M1/36 , B60R16/03 , H02J7/0063 , H02J2007/0067 , H05B39/02 , H05B39/047 , Y02B20/144
摘要： PROBLEM TO BE SOLVED: To minimize rush current in driving a load by converting a high voltage into a low voltage, and attain cost reduction and circuit simplification.
SOLUTION: This load drive includes a first switching element SW1, which is connected to a high-voltage supplying power supply 2 for supplying high voltage as well as a lamp load 6, a second switching element SW2, which is connected to a low-voltage supplying power supply 3 for supplying a low voltage and the lamp load 6, a current-detecting means which detects the value of current flowing in a shunt resistance 23 provided between the second switching element SW2 and the lamp load 6, and a PWM control 22 which turns on the second switching element SW2 to make the low-voltage supply power source 3 start supply low voltage; in the case where the value of current detected by the current detecting means 24 is higher than a predetermined value, it supplies the lamp 6 with low voltage; and when the value of current is lower than the predetermined value, it turns off the second switching element SW2 and drives the first switching element SW1 to start supplying the lamp load 6 with a pulse voltage from the high-voltage supply supply 2.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过将高电压转换成低电压来最小化驱动负载时的冲击电流，并且实现成本降低和电路简化。解决方案：该负载驱动器包括连接到用于提供高电压的高压供应电源2以及灯负载6的第一开关元件SW1，连接到低电压的第二开关元件SW2 供给用于提供低电压的电源3和灯负载6，检测在设置在第二开关元件SW2和灯负载6之间的分流电阻23中流动的电流值的电流检测装置以及PWM控制22 使第二开关元件SW2导通，使低电压电源3开始供给低电压; 在由电流检测装置24检测出的电流值高于预定值的情况下，将灯6供给低电压; 当电流值低于规定值时，关断第二开关元件SW2，驱动第一开关元件SW1，开始向高压电源2提供脉冲电压供给灯负载6。

16. 发明专利

JP5037414B2 Power supply control device 有权
公开(公告)号：JP5037414B2
公开(公告)日：2012-09-26
申请号：JP2008107938
申请日：2008-04-17
申请人：住友電気工業株式会社 , 住友電装株式会社 , 株式会社オートネットワーク技術研究所
发明人：智宏馬場崎 , 成治高橋
IPC分类号： H03K17/08 , B60R16/03 , H02H7/20
CPC分类号： H05B39/047 , B60R16/03 , Y02B20/144
摘要： A power supply controller includes: a controlling section that, upon determination that no anomaly has occurred, causes a semiconductor switch to execute turning on and, upon determination that the anomaly has occurred, causes the semiconductor switch to maintain an off state; a monitoring section that monitors which condition the controlling section is in, the condition being normal or anormal; and a switching section that, upon monitoring result by the monitoring section indicating the normal condition, causes turning on and off of the semiconductor switch by the controlling section and, upon the monitoring result indicating the anormal condition, causes turning on and off of the semiconductor switch with an external on-off command signals.

17. 发明专利

JP2011119236A Load control circuit 审中-公开
标题翻译：负载控制电路
公开(公告)号：JP2011119236A
公开(公告)日：2011-06-16
申请号：JP2010234358
申请日：2010-10-19
申请人： Anden , アンデン株式会社
发明人： HATTORI TAKESHI , SUGIMOTO KEIICHI , TAKAGI NOBUTOMO
IPC分类号： H05B37/02
CPC分类号： H05B39/047 , H02M3/156 , H03K7/08 , Y02B20/144
摘要： PROBLEM TO BE SOLVED: To prevent flicker of a lamp of a filament type by setting its illuminance within a constant range. SOLUTION: A straight-line approximation is made on a curve showing a relation of a duty ratio of a battery 1 to a voltage V, and a threshold voltage Vc for obtaining characteristics of the approximated line is to be set by a threshold value circuit 6. Here, an inclination of a primary straight line at the straight-line approximation is calculated on the basis of a relation between the duty ratio and an effective value (V 2 ×DUTY) 1/2 of an impressed voltage on the lamp 3. A straight-line approximation is performed so as to more precisely make constant illuminance of the lamp 3. The illuminance of the lamp of a filament type can be set thereby within a constant range to allow a lamp control circuit to prevent flicker of the lamp 3. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过将其照度设定在一定范围内来防止灯丝类型的灯闪烁。解决方案：在示出电池1的占空比与电压V的关系的曲线上进行直线近似，并且用于获得近似线的特性的阈值电压Vc将被设置为阈值这里，基于占空比与有效值（V 2 ×DUTY）之间的关系来计算直线近似时的一次直线的倾斜度 > 1/2 的照明电压。进行直线近似，以更精确地使灯3的照度恒定。灯丝类型的灯的照度可由此设定在一定范围内允许灯控制电路防止灯泡3的闪烁。版权所有（C）2011，JPO＆INPIT

18. 发明专利

JP2009147496A Load control unit 有权
标题翻译：负载控制单元
公开(公告)号：JP2009147496A
公开(公告)日：2009-07-02
申请号：JP2007320548
申请日：2007-12-12
申请人： Toyota Motor Corp , Yazaki Corp , トヨタ自動車株式会社 , 矢崎総業株式会社
发明人： YABE HIROO , UCHIKURA TAKESHI , TASHIRO TATSUMI , TANAKA AKIHIRO , KASAI MASAHIRO
IPC分类号： H03K17/60
CPC分类号： H05B39/047 , Y02B20/144
摘要： PROBLEM TO BE SOLVED: To provide a safety-improved load control unit enabling minimum load drive even if an input side fails.
SOLUTION: The load control unit has: first input circuits Q1, R1, R2 for detecting that a drive instruction signal has reached not higher than a first input threshold; a first constant current source 1 started according to the detection of the first input circuit; PWM signal supply means 3, Q5 that are started by the first constant current source and supply a PWM signal; fixed control signal supply means Q2, R3, R4, 2, Q3, Q4 for supplying fixed control signals when the first input circuit or the first constant current source fails; drive control means Q6, Q7, R5, R6, R7 for generating PWM drive control signals according to the PWM signal from the PWM signal supply means and for generating a fixed drive control signal according to a fixed control signal from the fixed control signal supply means; and a load drive element 5 controlled by the PWM drive control signal or the fixed drive control signal to drive a load 6.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供安全改进的负载控制单元，即使输入端发生故障，也能够实现最小的负载驱动。解决方案：负载控制单元具有用于检测驱动指令信号已经达到不高于第一输入阈值的第一输入电路Q1，R1，R2; 第一恒流源1根据第一输入电路的检测而起动; PWM信号供给装置3，Q5由第一恒流源启动并提供PWM信号; 固定控制信号供给装置Q2，R3，R4,2，Q3，Q4，用于当第一输入电路或第一恒流源故障时提供固定控制信号; 驱动控制装置Q6，Q7，R5，R6，R7，用于根据来自PWM信号提供装置的PWM信号产生PWM驱动控制信号，并根据来自固定控制信号提供装置的固定控制信号产生固定的驱动控制信号 ; 以及由PWM驱动控制信号或固定驱动控制信号控制的负载驱动元件5以驱动负载6.版权所有：（C）2009，JPO＆INPIT

19. 发明专利

JP2008105636A Illumination controlling device and method 有权
标题翻译：照明控制装置和方法
公开(公告)号：JP2008105636A
公开(公告)日：2008-05-08
申请号：JP2006292566
申请日：2006-10-27
申请人： Honda Motor Co Ltd , Omron Corp , オムロン株式会社 , 本田技研工業株式会社
发明人： SATO KAZUHIKO , MIYAZAKI HIROHITO , YAMADA KAZU , KAGAMI AKIHIRO , ISHIZAKI MASARU
IPC分类号： B60Q1/14 , B60Q1/02
CPC分类号： B60Q1/1423 , B60Q2300/054 , B60Q2300/112 , B60Q2300/14 , B60Q2300/142 , B60Q2300/314 , H05B39/047 , Y02B20/144
摘要： PROBLEM TO BE SOLVED: To light on a headlamp at luminance faithful to a desired dimming ratio while restraining variation of luminance of the headlamp, and light on right and left headlamps at the same luminance. SOLUTION: A CPU 21 first decides luminance factor based on conditions of respective switches 10-12 and signals from a sensor 13, decides an initial value of a PWM duty ratio S from a luminance factor D while a load current Ap is a default value (rated current A0), and initially drives a head lamp HL at the duty ratio S. Thereafter, the CPU 21 decides the luminance factor D based on the conditions of the respective switches 10-12 and the signals from the sensor 13, decides a PWM duty ratio S according to the luminance factor D and a load current Ap detected by a head lamp current detector 23, and drives the head lamp HL at the PWM duty ratio S. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在以相同的亮度抑制前照灯的亮度的变化和左右前照灯的光的同时，以亮度忠实于所需的调光比来照亮前照灯。解决方案：CPU21首先基于各个开关10-12的条件和来自传感器13的信号来确定亮度因子，并根据亮度因子D确定PWM占空比S的初始值，同时负载电流Ap为默认值（额定电流A0），并且最初以占空比S驱动头灯HL。此后，CPU 21基于各个开关10-12的条件和来自传感器13的信号来确定亮度因子D，根据亮度因数D和由前照灯电流检测器23检测到的负载电流Ap来决定PWM占空比S，并以前置放大器的占空比S驱动头灯HL。（C）2008，JPO＆INPIT

20. 发明专利

JP3999570B2 Filament lamp light quantity control method and a filament lamp light quantity control device and filament lamp light source device 有权
公开(公告)号：JP3999570B2
公开(公告)日：2007-10-31
申请号：JP2002156146
申请日：2002-05-29
申请人：株式会社住田光学ガラス
发明人：文夫丸山
IPC分类号： H05B39/04
CPC分类号： H05B39/047 , Y02B20/144

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