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71. 发明专利

JPH03195116A PULSE WIDTH MODULATION CIRCUIT 失效
公开(公告)号：JPH03195116A
公开(公告)日：1991-08-26
申请号：JP33539089
申请日：1989-12-25
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA , NOBUHARA MOCHIKIYO
IPC分类号： H03K7/08
摘要： PURPOSE:To reduce the influence caused by the fluctuation of a power supply voltage even when separating an error amplifier by generating a pulse width modulation signal by changing the central potential of an inclined wave in response to the fluctuation of a power supply potential similarly to a case where the error amplifier is not separated even when the error amplifier is separated. CONSTITUTION:When an error signal goes to more than a prescribed value, a feedback loop connected to a comparing means 24 from a loading current detecting means 27 through an error amplifier 21 by a selecting means 22 is separated by the selecting means 22 and switched to open loop control to supply an input signal through the selecting means 22 to the comparing means 24. On the other hand, when a power supply voltage +B is fluctuated, the central potential of the output inclined wave from an inclined wave generating circuit 23 is made variable while reacting to the fluctuation and therefore, the duty ratio of the pulse width modulation signal to be taken out from the comparing means 24 can be changed. In such a way, the central potential of the inclined wave is changed corresponding to the power supply voltage. Thus, the fluctuation of a loading current caused by the fluctuation of the power supply voltage can be reduced.

72. 发明专利

JP2003102181A SYSTEM AND METHOD FOR ELECTRIC POWER SUPPLY 审中-公开
公开(公告)号：JP2003102181A
公开(公告)日：2003-04-04
申请号：JP2001290690
申请日：2001-09-25
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI , TSUJI KIMIHISA
IPC分类号： H02J7/14 , B60K6/20 , B60K6/22 , B60K6/26 , B60K6/28 , B60K6/485 , B60L11/18 , B60W10/08 , B60W20/00 , H02M7/5387 , B60K6/02
摘要： PROBLEM TO BE SOLVED: To realize a voltage converting means for charging a low-voltage power source at a low cost, using a charging voltage on a high-voltage side, in a two power supply source system in which the voltage ratio of a low-voltage battery and a high-voltage battery is 1:1 to 1:4. SOLUTION: Power from a high-voltage battery 10 (for example, 36 V) is supplied to a motor generator 14 via an inverter 12. A low-voltage battery 20 (for example, 12 V) is connected to a neutral point of the motor generator via a reactor 18. The voltage ratio of the low-voltage battery 20 and the high- voltage battery 10 is preferably 1:2 to 1:4. The inverter 12 is controlled so as to cause a current deformation phenomenon so that a neutral point voltage is made a desired charging voltage for the low-voltage battery 20.

73. 发明专利

JP2002181853A VOLTAGE DETECTING CIRCUIT 失效
公开(公告)号：JP2002181853A
公开(公告)日：2002-06-26
申请号：JP2000377634
申请日：2000-12-12
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA
IPC分类号： G01R19/165
摘要： PROBLEM TO BE SOLVED: To provide a voltage detecting circuit capable of detecting the abnormality of the voltage in plural voltage sources at a low cost. SOLUTION: This voltage detecting circuit comprises a detecting part 5 having npn-type first transistors 51 respectively mounted on each capacitor 2, inputting a voltage corresponding signal corresponding to the voltage of the capacitor 2 at its base terminal, and being connected to a bias power source at its collector terminal, and ppn-type second transistors inputting the voltage corresponding signal at its base terminal, and being connected to an emitter terminal of the first transistor 51 at its emitter terminal, a first connecting wire 6 connecting the emitter terminals of the first resistors 51 of the detecting parts 5, a second connecting wire 7 connecting the collector terminals of the second transistors 52 in the detecting parts 5, and an abnormality detecting terminal 8 connected to the second connecting wire 7. This voltage detecting circuit detects the abnormality in the voltage balance in plural capacitors 2 connected in series.

74. 发明专利

JP2001327158A POWER CIRCUIT OF VOLTAGE CONVERTER 失效
公开(公告)号：JP2001327158A
公开(公告)日：2001-11-22
申请号：JP2000139470
申请日：2000-05-12
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA
IPC分类号： H02M3/00
摘要： PROBLEM TO BE SOLVED: To surely operate a DO-DC converter connected between two power sources different in voltage. SOLUTION: A 36V battery 12 and a 12V battery 18 are provided, and a DC-DC converter 16 is connected between both batteries. The DC-DC converter 16 has two diodes 16b and 16c which are connected to each battery, and selects voltage on either higher side. The selected voltage is regulated into a specified voltage value with a regulator 16d, and is supplied as operation voltage to a control circuit 16e. Hereby, even if either of both batteries deteriorates, the DC-DC converter 16 is operated with the other battery, whereby this power circuit can execute the voltage converting function.

75. 发明专利

JPH10232104A CAPACITANCE TYPE ANGEL DETECTOR 失效
公开(公告)号：JPH10232104A
公开(公告)日：1998-09-02
申请号：JP8538497
申请日：1997-04-03
申请人： TOYOTA MOTOR CORP , TOKAI RIKA CO LTD
发明人： TSUJI KIMIHISA , KAWAMOTO MASAYUKI , NAKAHO JUNICHI
IPC分类号： G01B7/30 , G01D5/24 , G01D5/245
摘要： PROBLEM TO BE SOLVED: To provide a capacitance type angle detector capable of detecting a correct turning angle. SOLUTION: In a capacitance type angle detector 2, the first member 14 and the second member 16 for forming a plurality of capacitor by opposing a plurality of electrodes not to relatively rotate each other, and the third member 12 for changing capacities of the plurality of the capacitor with fixed phase differences by disposing the member 12 between the first member 14 and the second member 16 and by moving the member 12 relatively to the first member 14 and the second member 16 with the rotation of a rotation body 10, are installed. A turning angle of the rotation body 10 is detected on the basis of capacities of the plurality of the capacitors. The third member 12 is made out of a dielectric substance or metal conductor, and the capacitor of which the measure of capacity is not carried out among the plurality of the capacitor is kept in a state not to generate the movement of electric charges.

76. 发明专利

JPH0993086A SWITCHED CAPACITOR CIRCUIT AND SIGNAL PROCESSING CIRCUIT USING THE SAME 失效
公开(公告)号：JPH0993086A
公开(公告)日：1997-04-04
申请号：JP25071595
申请日：1995-09-28
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA
IPC分类号： H03H19/00
摘要： PROBLEM TO BE SOLVED: To increase an equivalent resistance value regardlessly of the switching frequency and capacitance of switched capacitor. SOLUTION: Five capacitors C1 to C5 , for which one terminal is connected to the ground, are parallelly arranged and between a signal input terminal 2 and a ground terminal 3, the other terminals of capacitors C1 to C5 are successively connected by transistors Tr1 to Tr6 . The mutually adjacent transistors Tr1 to Tr6 are alternately turned on/off at frequency f. Thus, a five-fold equivalent resistance value R=5/fC as large as that of equivalent resistance circuit composed of a switched capacitor equipped with one capacitor can be provided.

77. 发明专利

JPH07225162A FORCE DETECTOR AND MOTION DETECTOR 失效
公开(公告)号：JPH07225162A
公开(公告)日：1995-08-22
申请号：JP3797394
申请日：1994-02-10
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA
IPC分类号： G01L1/14 , G01C19/56 , G01C19/5614 , G01D5/24 , G01L9/12 , G01P15/00 , G01P15/14 , G01P15/18 , G01P9/04
摘要： PURPOSE:To configure a detector of force and motion according to the capacity change based on the displacement of a detection plate caused by operated force without using an oscillation circuit and a demodulation circuit. CONSTITUTION:Vibration generated in y-axis direction due to coriolis force is detected as the capacity change of a capacitor Cx which is formed by allowing an electrode 26 provided at a vibration part 14 and an electrode 28 provided at the side of a fixed wall 20 to sandwich an air layer. This capacitor is used as the capacitor Cx for connecting the output side of an operational amplifier 0P2 of a switched capacitor circuit 35 for amplifying a reference voltage and an inverted input side. When the vibration part 14 vibrates due to angular velocity, capacity changes and the change is outputted as the change in the output voltage of the switched capacitor circuit 35. Since neither oscillation circuit nor demodulation circuit is used, motion such as angular velocity and operated force can be accurately detected without being influenced by the frequency characteristics of a circuit.

78. 发明专利

JPH04229712A PULSE WIDTH MODULATION CIRCUIT 失效
公开(公告)号：JPH04229712A
公开(公告)日：1992-08-19
申请号：JP9732791
申请日：1991-04-26
申请人： TOYOTA MOTOR CORP
发明人： TSUJI KIMIHISA , NOBUHARA MOCHIKIYO
IPC分类号： B62D5/04 , H03K7/08
摘要： PURPOSE:To suppress an error in a load current due to fluctuation in a power supply voltage over wide range of an input signal by with respect to the pulse width modulation circuit outputting a pulse width modulation signal whose duty ratio is varied with an error in the input signal. CONSTITUTION:An arithmetic means 102 generates a signal in response to a product between a fluctuation of an input signal from a reference value and a fluctuation of a power supply voltage from a reference voltage. A level variable means 104 uses an output signal of the arithmetic means 102 to change an output error signal of an error amplifier 101 and a relative level of an output slope of a slope wave generating circuit 103. A comparison means 105 generates a pulse width modulation signal.

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