公开(公告)号：US20190041463A1

公开(公告)日：2019-02-07

申请号：US15956799

申请日：2018-04-19

Applicant: DENSO CORPORATION

Inventor： Kazutaka HONDA ,  Tomoya YAMADA

IPC: G01R31/36 ,  H02J7/00

CPC classification number: G01R31/3835 ,  G01R1/30 ,  G01R15/002 ,  G01R31/3842 ,  H02J7/0021 ,  H02J2007/005

Abstract: A voltage sensing device includes: a multiplexer configured to choose either two corresponding voltages at two voltage sensing target nodes or two corresponding voltages at the terminals of a shunt resistor, and output either the two corresponding voltages at the two voltage sensing target nodes or the two corresponding voltages at the terminals of the shunt resistor, which are chosen by the multiplexer, as a first output voltage and a second output voltage; a differential switched capacitor amplifier circuit including a sampling capacitor and a feedback capacitor and configured to sample the first output voltage and the second output voltage through the sampling capacitor, and output sensing voltages corresponding to the first output voltage and the second output voltage by transferring a charge stored in the sampling capacitor through the feedback capacitor; and an operation control unit configured to control the multiplexer and the differential switched capacitor amplifier circuit.

公开(公告)号：US20170254854A1

公开(公告)日：2017-09-07

申请号：US15432998

申请日：2017-02-15

Applicant: DENSO CORPORATION

Inventor： Kazutaka HONDA

IPC: G01R31/36 ,  H02J7/00

CPC classification number: G01R31/362 ,  G01R19/0084 ,  G01R27/08 ,  G01R31/36 ,  G01R31/3644 ,  H02J7/0021 ,  H02J7/0068

Abstract: A voltage sensing circuit includes a difference voltage sensing circuit and a leakage cancelling circuit. The difference voltage sensing circuit includes two sensing capacitors, a first sensing switch, a second sensing switch, and a third sensing switch. A first group including the first sensing switch and the second sensing switch and a second group including the third sensing switch are complementally turned on and turned off. The leakage cancelling circuit includes two compensation capacitors, a first compensation switch, a second compensation switch, and a third compensation switch. A third group including the first compensation switch and the second compensation switch and a fourth group including the third compensation switch are complementally turned on and turned off.

公开(公告)号：US20130207687A1

公开(公告)日：2013-08-15

申请号：US13761533

申请日：2013-02-07

Applicant: DENSO CORPORATION

Inventor： Kazutaka HONDA ,  Tetsuya MAKIHARA

IPC: H03K19/0175

CPC classification number: H03K19/017545 ,  H01L2224/48137 ,  H01L2924/13091 ,  H03K19/018521 ,  H01L2924/00

Abstract: A logic signal transmission circuit includes a driving circuit, an isolation section, and a latch section. The driving circuit converts an input digital signal to a differential digital signal. The isolation section blocks direct current and passes the differential digital signal. The latch section has even numbers of inverters which are connected in a loop and output a logic signal by turning ON and OFF a power supply voltage in a complementary manner. An input impedance of the latch section is set so that when a logic level of the differential digital signal changes, a transient voltage inputted through the isolation section to the latch section changes across a threshold voltage of the latch section. When the transient voltage changes across the threshold voltage, a logic level of the logic signal changes.

Abstract translation: 逻辑信号传输电路包括驱动电路，隔离部分和锁存部分。 驱动电路将输入数字信号转换成差分数字信号。 隔离部分阻止直流电流并传递差分数字信号。 闩锁部分具有偶数个反相器，其以循环方式连接并通过互补的方式接通和断开电源电压来输出逻辑信号。 锁存部分的输入阻抗被设定为当差分数字信号的逻辑电平改变时，通过隔离部分输入到锁存部分的瞬态电压在锁存部分的阈值电压上变化。 当瞬态电压在阈值电压上变化时，逻辑信号的逻辑电平发生变化。