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1. 发明授权

US11016524B2 Analog switch 有权
公开(公告)号：US11016524B2
公开(公告)日：2021-05-25
申请号：US17061874
申请日：2020-10-02
申请人： ABLIC Inc.
发明人： Eiki Imaizumi
IPC分类号： G06F1/08 , H03K17/687
摘要： The analog switch includes: a clock generation circuit configured to generate a first clock and a second clock; a transfer circuit including an NMOS transistor having a source and a back gate connected to each other, and a PMOS transistor having a source and a back gate connected to each other, one of which has a drain connected to the source of the other, and a source connected to a signal input terminal, and the other of which has a drain connected to a signal output terminal; a first control signal generation circuit configured to generate a control signal for switching the PMOS transistor based on a voltage at the signal input terminal and the first clock; and a second control signal generation circuit configured to generate a control signal for switching the NMOS transistor based on the voltage at the signal input terminal and the second clock.

2. 发明授权

US10461769B2 ΔΣ modulator 有权
公开(公告)号：US10461769B2
公开(公告)日：2019-10-29
申请号：US16350120
申请日：2018-09-27
申请人： ABLIC Inc.
发明人： Eiki Imaizumi
IPC分类号： H03M3/00 , H03F3/45
摘要： A ΔΣ modulator includes a first integrator which has first and second capacitors and integrates an analog input signal and a feedback analog signal, a second integrator which has third and fourth capacitors and integrates an output signal of the first integrator, a differential amplifier which has input and output terminals switched and connected via a switch circuit to either the first and second capacitors or the third and fourth capacitors, a chopper switch which switches the polarity of the input terminal and the polarity of the output terminal, to both of which the first capacitor and the second capacitor are connected, a quantizer which compares an added signal and a reference signal to output a digital value, and a digital/analog converter which outputs the feedback analog signal corresponding to the digital value.

3. 发明申请

US20190097647A1 Delta sigma modulator 审中-公开
公开(公告)号：US20190097647A1
公开(公告)日：2019-03-28
申请号：US16350120
申请日：2018-09-27
申请人： ABLIC Inc.
发明人： Eiki Imaizumi
IPC分类号： H03M3/00
摘要： A ΔΣ modulator includes a first integrator which has first and second capacitors and integrates an analog input signal and a feedback analog signal, a second integrator which has third and fourth capacitors and integrates an output signal of the first integrator, a differential amplifier which has input and output terminals switched and connected via a switch circuit to either the first and second capacitors or the third and fourth capacitors, a chopper switch which switches the polarity of the input terminal and the polarity of the output terminal, to both of which the first capacitor and the second capacitor are connected, a quantizer which compares an added signal and a reference signal to output a digital value, and a digital/analog converter which outputs the feedback analog signal corresponding to the digital value.

4. 发明授权

US10191117B2 Battery remaining power predicting device and battery pack 有权
公开(公告)号：US10191117B2
公开(公告)日：2019-01-29
申请号：US15070151
申请日：2016-03-15
申请人： ABLIC INC.
发明人： Eiki Imaizumi
IPC分类号： H01M14/00 , G01R31/36 , H02J7/00 , H01M10/0525 , H01M10/48
摘要： To provide a battery pack capable of performing a highly accurate prediction of a remaining power of a battery while being low in cost. A battery remaining power predicting device includes a voltage detection portion which measures a voltage and a temperature of a battery, a computing portion which predicts and calculates a remaining power of the battery, and a controller which controls the computing portion, and has a battery remaining power predicting flow for regressively calculating the battery remaining power, and a secular change estimating flow for estimating a secular change in battery characteristics, using a case where a battery current is in a constant current state.

5. 发明授权

US10060986B2 Battery remaining power predicting device and battery pack 有权
公开(公告)号：US10060986B2
公开(公告)日：2018-08-28
申请号：US15059833
申请日：2016-03-03
申请人： ABLIC INC.
发明人： Eiki Imaizumi
IPC分类号： G01N27/416 , G01R31/36
CPC分类号： G01R31/3842 , G01R31/367 , G01R31/389
摘要： A battery remaining power predicting device predicts a remaining power of a battery by a first computing flow for regressively calculating a battery open circuit voltage and the battery remaining power, based on a battery voltage and a battery temperature both measured, and a current value and a battery internal resistance calculated from a change in the battery remaining power. Further, the battery remaining power predicting device predicts the remaining power of the battery by a second computing flow for calculating a battery capacity and a battery internal resistance, based on a battery remaining power before the start of a constant current discharge, a battery voltage immediately before the stop of the constant current discharge, and a settled battery voltage after the stop of the constant current discharge, after the constant current discharge is performed for a predetermined period as a battery load.

6. 发明授权

US10573936B2 Remaining battery life prediction device and battery pack 有权
公开(公告)号：US10573936B2
公开(公告)日：2020-02-25
申请号：US14943417
申请日：2015-11-17
申请人： ABLIC INC.
发明人： Eiki Imaizumi
IPC分类号： H01M10/48 , G01R31/36 , G01R31/3835 , G01R31/392 , G01R31/389
摘要： Provided is a low-cost battery pack capable of predicting a remaining battery life of a rechargeable battery with high accuracy. A remaining battery life prediction device includes: a voltage detection unit configured to measure a battery voltage and a battery temperature of the battery; a calculation unit configured to perform predictive calculation of a remaining battery life based on the battery voltage and the battery temperature; and a control unit configured to control operation of the remaining battery life prediction device and the calculation unit, the remaining battery life prediction device being configured to predict a remaining life of the battery with a calculation flow of for a predetermined time period, recursively calculating the remaining battery life based on the measured battery voltage and battery temperature and an internal impedance of the battery in a battery equivalent circuit.

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