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公开(公告)号：US20240332164A1
公开(公告)日：2024-10-03
申请号：US18608970
申请日：2024-03-19
申请人： ABLIC Inc.
发明人： Mitsuhiro YOSHIMURA
IPC分类号： H01L23/522
CPC分类号： H01L23/5225 , H01L28/86
摘要： A capacitive element 100 includes a P-type semiconductor substrate 110, a capacitor structure 150 formed above the P-type semiconductor substrate 110, and a shielding layer 130 formed between the P-type semiconductor substrate 110 and the capacitor structure 150 and electrically connected to the P-type semiconductor substrate 110. Preferably, a pair of electrodes 150a and 150b in the capacitor structure 150 are at a first potential V1 and a second potential V2 respectively, and the P-type semiconductor substrate 110 and the shielding layer 130 are at a third potential V3.
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公开(公告)号：US20240322679A1
公开(公告)日：2024-09-26
申请号：US18607583
申请日：2024-03-18
申请人： ABLIC Inc.
发明人： Minoru SUDO
IPC分类号： H02M3/07
CPC分类号： H02M3/07
摘要： A DC-DC converter is provided. The DC-DC converter includes terminals; a charge pump circuit including an oscillation circuit and provided between the terminal and the terminal; a comparison circuit including a comparator that has a hysteresis characteristic and outputs an oscillation on-off control signal that controls switching between ON and OFF of the oscillation operation of the oscillation circuit based on a magnitude relationship between a voltage proportional to the output voltage between the terminals and a first reference voltage; and a comparison circuit that outputs a control signal that controls the oscillation operation of the oscillation circuit based on a voltage proportional to the input voltage between the terminals and a second reference voltage.
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公开(公告)号：US20240319757A1
公开(公告)日：2024-09-26
申请号：US18607590
申请日：2024-03-18
申请人： ABLIC Inc.
发明人： Kosuke TAKADA
IPC分类号： G05F1/575
CPC分类号： G05F1/575
摘要： The voltage regulator includes: an error amplification circuit, outputting a signal amplifying a difference between a reference voltage and a feedback voltage; a source ground amplification circuit, amplifying the signal supplied from the error amplification circuit and outputting the signal as a control signal; and an output transistor, including a gate to which the control signal is supplied and outputting an output voltage. The source ground amplification circuit includes: a phase advance compensation circuit, containing a resistor and a capacitor; a load, containing a resistor and an offset generation element generating an offset voltage; and a transistor, containing: a gate receiving the signal output from the error amplification circuit; a source being connected with a first end of the resistor and a first end of the capacitor, the resistor and the capacitor being contained in the phase advance compensation circuit; and a drain connected with the load.
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公开(公告)号：US20240297574A1
公开(公告)日：2024-09-05
申请号：US18592530
申请日：2024-03-01
申请人： ABLIC Inc.
发明人： Yoshiomi SHIINA
IPC分类号： H02M1/32 , G01R19/00 , G01R19/165 , H02M1/00 , H02M3/158
CPC分类号： H02M1/32 , G01R19/0038 , G01R19/16571 , H02M1/0009 , H02M3/158
摘要： A DC/DC converter is able to test an overcurrent detection circuit without damaging the circuit. The DC/DC converter includes: a high-side switch; an IV conversion element and a current detection transistor which are connected in parallel with the high-side switch; a low-side switch; an overcurrent detection circuit; and a control circuit which outputs a first signal from a first output port to the high-side switch, outputs a second signal from the second output port to the low-side switch, and outputs a third signal from a third output port to the current detection transistor. The DC/DC converter further includes a test port which controls the current detection transistor to be turned off in the case of testing the overcurrent detection circuit, and supplies a variable current to a connection point between the current detection transistor which is controlled to be turned off and the IV conversion element.
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公开(公告)号：US12032006B2
公开(公告)日：2024-07-09
申请号：US17973340
申请日：2022-10-25
申请人： ABLIC Inc.
IPC分类号： G01R19/165 , G01R19/00 , H02J7/00 , H02J7/34
CPC分类号： G01R19/1659 , G01R19/0084 , H02J7/0063 , H02J7/345
摘要： Provided is a battery-less sensor circuit including a power generation element, a first switching element, a voltage control circuit, a first storage capacitor, a sensor circuit, and a load. The power generation element is connected to the first storage capacitor via the first switching element. A power supply terminal of the sensor circuit is connected to an input terminal of the first switching element. The voltage control circuit is configured to control a current passing through the first switching element through reception of a voltage of the input terminal of the first switching element. The load is connected to the first storage capacitor and the sensor circuit.
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公开(公告)号：US20240006408A1
公开(公告)日：2024-01-04
申请号：US18466492
申请日：2023-09-13
申请人： ABLIC Inc.
发明人： TSUTOMU TOMIOKA
CPC分类号： H01L27/0292 , H01L27/0255 , H01L27/0281 , H01L27/0288 , H02H9/046 , H01L27/0266
摘要： An electrostatic protection circuit and a semiconductor device include: a first diode whose anode is connected to a signal terminal; a second diode whose cathode is connected to a cathode of the first diode and whose anode is connected to a GND terminal; and a depletion type MOS transistor connected in parallel with the first diode.
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公开(公告)号：US11848571B2
公开(公告)日：2023-12-19
申请号：US17187355
申请日：2021-02-26
CPC分类号： H02J50/20 , B60R25/406 , G06K19/0708 , H02J9/005
摘要： A convenient electronic circuit in which a switch is able to be switched through electric power obtained by weak radio waves is provided. An electronic circuit includes: a power supply configured to output direct current (DC) electric power; a switch connected between the power supply and a load driven by DC electric power supplied from the power supply and configured to switch a connection state between the power supply and the load from a non-conduction state to a conduction state; an power input terminal to which electric power obtained by radio waves received by an antenna capable of receiving the radio waves is input; a DC power output terminal configured to output DC electric power, a power conversion circuit configured to convert electric power input to the power input terminal into DC electric power and output the converted electric power from the DC power output terminal; an input terminal connected to the DC power output terminal of the power conversion circuit; an output terminal connected to the switch and configured to control a connection state of the switch; and a control circuit configured to control a connection state of the switch to be in a conduction state when the power conversion circuit outputs DC electric power due to the reception of radio waves by the antenna.
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公开(公告)号：US11809208B2
公开(公告)日：2023-11-07
申请号：US17584314
申请日：2022-01-25
申请人： ABLIC Inc.
发明人： Tsutomu Tomioka
CPC分类号： G05F1/613 , G11C7/1069
摘要： A shunt regulator includes: a capacitor, connected between an output terminal and a ground terminal; a voltage divider circuit and an output transistor, connected between the output terminal and the ground terminal; an error amplifier, controlling the output transistor based on a voltage at an output terminal of the voltage divider circuit and a reference voltage; a non-volatile memory; a memory control circuit, outputting a data read signal to the non-volatile memory; and a voltage detection circuit, detecting that a voltage at the output terminal has reached a predetermined voltage which permits a data reading operation of the non-volatile memory, and outputting a detection signal to the memory control circuit. An operating current of the non-volatile memory is supplied from the capacitor.
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9.发明公开公开(公告)号：US20230318315A1
公开(公告)日：2023-10-05
申请号：US18185377
申请日：2023-03-17
申请人： ABLIC Inc.
IPC分类号： H02J7/00
CPC分类号： H02J7/0013 , H02J7/00304 , H02J7/00308
摘要： A voltage detection circuit, a charge control circuit, a charge and discharge control circuit, and a semiconductor device are provided. The voltage detection circuit includes: an input port; a plurality of transistors connected in series and including at least an input transistor including a gate connected to the input port, a source connected to a first power supply terminal, and a drain, and a first transistor including a drain connected to a second power supply terminal, a gate, and a source connected to the gate of the first transistor; and an output port configured to be one of connection points of the plurality of transistors.
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公开(公告)号：US20230314521A1
公开(公告)日：2023-10-05
申请号：US18184633
申请日：2023-03-15
发明人： Eiki IMAIZUMI , Toshiyuki UCHIDA , Biao SHEN , Kazuhisa SUZUKI
IPC分类号： G01R31/3835 , H02J7/00
CPC分类号： G01R31/3835 , H02J7/0047 , H03M1/124
摘要： A battery voltage monitoring device includes a clock generation circuit; a switch circuit including first and second N-type transistors and first and second P-type transistors of which sources and back gates are connected to each other, with a drain of one of the first N-type transistor and the first P-type transistor connected to the other source, one source connected to a signal input unit, and the other drain connected to a signal output unit, and a source of one of the second N-type transistor and the second P-type transistor connected to the other source, one source connected to a signal input unit, and the other drain connected to a signal output unit; a first generation circuit generating first and second control signals for the first and second P-type transistors, respectively; and a second generation circuit generating third and fourth control signals for the first and second N-type transistors, respectively.
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