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公开(公告)号：US11973420B2
公开(公告)日：2024-04-30
申请号：US17772059
申请日：2019-10-28
发明人： Yuta Nagano
IPC分类号： H02M3/02
CPC分类号： H02M3/02
摘要： An aspect of the present invention is a voltage supply device including: a controller which outputs a signal indicating any one bus voltage determined by negotiation among a plurality of bus voltages from a power supply circuit to an external device; a reference voltage generation unit which generates a reference voltage corresponding to the signal; a detection voltage output unit which detects the bus voltage and outputs a detection voltage; a comparison unit which compares the detection voltage with the reference voltage; and a switch unit which switches the supply state of the bus voltage to the external device in response to the comparison result.
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公开(公告)号：US20240039394A1
公开(公告)日：2024-02-01
申请号：US18486727
申请日：2023-10-13
发明人： Lionel Cimaz
CPC分类号： H02M1/32 , H02M3/02 , H02M1/0009
摘要： In an embodiment a DC to DC conversion circuit includes a DC to DC converter connected to an input path and an output path and a current limiting circuit including a circuit configured to detect when an input or output current of the DC to DC converter exceeds or falls below a current threshold and a controller configured to store a first voltage level of an output voltage of the DC to DC converter in response to the input or output current exceeding the current threshold, to store a second voltage level of the output voltage in response to the input or output current falling below the current threshold and to set a control signal based on the first and second voltage levels.
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公开(公告)号：US11061457B1
公开(公告)日：2021-07-13
申请号：US16827520
申请日：2020-03-23
发明人： Debraj Bhattacharjee , Kailas Iyer , Palaniappan Subbiah , Subramanyam Sankaran , Anshul Gulati , Neel Karkhanis
IPC分类号： G06F1/26 , G06F1/3234 , G06F1/3215 , H02M7/02 , H01L29/772 , H02M3/02 , G06F1/18
摘要： Technology to dynamically share system power among charging ports of a multiport power delivery (PD) system is described. In one embodiment, a multiport PD system includes a master controller associated with a master port, and one or more slave controllers associated with one or more slave ports. The master controller determines a port connection status of a set of multiple ports. The port connection status indicates that multiple devices are connected. The master controller determines a power requirement of each of the devices. The master controller dynamically allocates a system power between each of the ports, independent of a connection sequence of the devices.
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公开(公告)号：US10800364B2
公开(公告)日：2020-10-13
申请号：US15868716
申请日：2018-01-11
IPC分类号： B60R16/033 , H02M3/02 , H02J7/14 , B60R16/03 , H02J1/08
摘要： A system includes first and second vehicle power distribution buses electrically isolated from one another, each electrically connected to an electric generator. Each of the first and second buses includes a high voltage portion, electrically connected to a first load with a power consumption exceeding a threshold, and a low voltage portion electrically connected to a second load with a power consumption less than the threshold.
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公开(公告)号：US10730456B2
公开(公告)日：2020-08-04
申请号：US16084311
申请日：2017-09-26
申请人： AUDI AG
IPC分类号： B60R16/023 , B60R16/033 , H01M2/22 , B60L50/50 , H02M3/02
摘要： A method for operating an energy coupling device electrically coupling a high-voltage on-board electrical system designed for d.c. voltage to a low-voltage on-board electrical system designed for d.c. voltage, having a high-voltage energy converter connected to the high-voltage on-board electrical system and a low-voltage energy converter connected to the low-voltage on-board electrical system, which are electrically coupled by means of a d.c. voltage intermediate circuit. The energy converters are controlled by a control unit. The degrees of conversion efficiency of the energy converters are ascertained and an intermediate circuit d.c. voltage of the d.c. voltage intermediate circuit is set as a function of a total degree of efficiency produced by the sum of the degrees of conversion efficiency in order to maximize the total degree of efficiency.
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公开(公告)号：US20190280594A1
公开(公告)日：2019-09-12
申请号：US16426126
申请日：2019-05-30
发明人： Kailang Hang , Liangwei Sun
摘要： A voltage regulation circuit can include: a power stage circuit with a single inductor and a plurality of output circuits; each output circuit having an output control switch configured to control a duration of an on time of the output circuit, and an output switch control circuit configured to control the output control switch in accordance with an output voltage sampling signal, a reference current signal that represents an output current of the output circuit, and a clock signal, in order to maintain an output voltage of the output circuit as constant and to decrease interference from load variations of any other of the plurality of output circuits; and where the output control switches are controlled to be on in sequence in each switching period.
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公开(公告)号：US20190210547A1
公开(公告)日：2019-07-11
申请号：US15868716
申请日：2018-01-11
IPC分类号： B60R16/033 , H02M3/02
摘要： A system includes first and second vehicle power distribution buses electrically isolated from one another, each electrically connected to an electric generator. Each of the first and second buses includes a high voltage portion, electrically connected to a first load with a power consumption exceeding a threshold, and a low voltage portion electrically connected to a second load with a power consumption less than the threshold.
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公开(公告)号：US10128652B2
公开(公告)日：2018-11-13
申请号：US14344760
申请日：2012-09-12
申请人： Sebastien Vieillard , Pierre Magne , Farid Meibody-Tabar , Babak Nahid-Mobarakeh , Serge Pierfederici
发明人： Sebastien Vieillard , Pierre Magne , Farid Meibody-Tabar , Babak Nahid-Mobarakeh , Serge Pierfederici
IPC分类号： H02J3/14 , H02J1/00 , H02J1/14 , H02J3/16 , H02J3/24 , B60R16/03 , G06F17/10 , H02M3/02 , H03H7/01
摘要： A method of stabilizing a DC electricity network, the network including a DC voltage source powering electrical loads that are connected in parallel to terminals of the voltage source and each of which is to receive a current or voltage setpoint. The method stabilizes the network by regulating setpoints applied to the loads by a virtual stabilization impedance generated at terminals of each load, the virtual impedances being dimensioned to stabilize the network in desired operating points and in given configurations of the network including a state in which at least one load is inactive or has failed and a state in which the stabilization of a load is inactive. Each virtual impedance is generated by a non-linear regulation loop acting on the setpoint for the corresponding load.
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公开(公告)号：US20180309361A1
公开(公告)日：2018-10-25
申请号：US15497010
申请日：2017-04-25
发明人： Jingjing YU , Christian LARSEN
IPC分类号： H02M3/02 , H03K19/0185 , H02M7/538
CPC分类号： H02M3/02 , H02M1/08 , H02M3/158 , H02M7/538 , H02M2001/0006 , H02M2001/0032 , H02M2003/1552 , H03K19/018514 , Y02B70/16
摘要： In accordance with embodiments of the present disclosure, a system for power conversion may include a power converter comprising a power inductor and a switch coupled to the power inductor and a predriver system for electrically driving a gate of the switch, the predriver system configured to operate in a plurality of modes including a high-power mode in which the predriver system is supplied with electrical energy from a first power supply having a first supply voltage and a low-power mode in which the predriver system is supplied with electrical energy from a second power supply having a second supply voltage significantly lesser than the first supply voltage.
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公开(公告)号：US10110115B2
公开(公告)日：2018-10-23
申请号：US15584286
申请日：2017-05-02
发明人： Masanari Fujii
摘要： A switching power supply device includes: a latch circuit to be set by a latch signal that is generated when an anomaly is detected, the latch circuit stopping the turning ON and OFF of the switching element when set by the latch signal; a pulse generator that receives said latch signal and generates a pulse signal at a prescribed cycle in response to said latch signal; a discharge circuit that is activated every time said pulse signal is provided so as to discharge electric charges stored in the capacitor; and a comparator for undervoltage protection that, when said control power supply voltage decreases to a prescribed operation stop voltage as said capacitor discharges, resets the latch circuit and the pulse generator, respectively.
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