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公开(公告)号：US20200099240A1
公开(公告)日：2020-03-26
申请号：US16696419
申请日：2019-11-26
申请人： Gennady PLATONOV
发明人： Gennady PLATONOV
摘要： A method and device is disclosed for charging and/or maintenance of lead-acid and alkaline accumulator batteries, allowing a charge, discharge, or recovery in control-conditioning cycles of these batteries. To increase efficiency of the battery recovery process, its charge is created by a reversible current in consecutive stages. Correction of the charging mode is provided based on voltage and temperature of the accumulator battery.
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12.发明授权公开(公告)号：US10594318B2
公开(公告)日：2020-03-17
申请号：US15689039
申请日：2017-08-29
IPC分类号： H05B33/08 , H01L23/52 , H02M1/00 , H02M3/155 , H02M7/155 , H03K5/153 , H04M1/31 , H03K17/732 , H03K17/06 , H02H7/125 , H01F7/18 , H03K17/0812
摘要： An electric circuit arrangement and a method for generating electric current pulses to a load, the electric circuit arrangement including a switch and a current source in series connection with the load; wherein the switch is arranged to operate in at least an on state and an off state, thereby selectively connecting or disconnecting the current source to or from the load so as to generate the electric current pulses. With such architecture, the circuit performs with a better efficiency than a cascaded architecture.
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公开(公告)号：US20190356238A1
公开(公告)日：2019-11-21
申请号：US16478250
申请日：2017-12-19
发明人： Ayumu HATANAKA , Takeshi SEKI , Kazushi TAKAHASHI , Kenji OHSHIMA
IPC分类号： H02M7/48 , H02M7/00 , H01L23/473 , H02M7/155 , H01L23/00
摘要： A problem to be solved by the present invention is to secure a creepage distance while maintaining miniaturization. A power converter according to the present invention includes a positive electrode side conductor, a negative electrode side conductor, and an insulating member disposed between the positive electrode side conductor and the negative electrode side conductor, in which the positive electrode side conductor or the negative electrode side conductor includes a main surface on a side opposite to a surface in contact with the insulating member, a side surface connected to the surface in contact with the insulating member, and an inclined surface forming an obtuse angle with respect to each of the main surface and the side surface, and the insulating member includes a protrusion formed so as to overlap with the side surface and the inclined surface as viewed in a direction perpendicular to the side surface.
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公开(公告)号：US10218282B1
公开(公告)日：2019-02-26
申请号：US15994888
申请日：2018-05-31
摘要： Apparatus and methods for sequencing outputs in a multi-output power converter system are disclosed herein. During start-up multiple CC/CV outputs may be sequenced so that energy is first provided to a highest voltage secondary output and subsequently provided to a lowest voltage secondary output. Additionally, control may be exerted so as to concurrently and monotonically increase voltages during at least part of the start-up transient; and concurrent control may be further implemented using control circuitry and a variable reference generator. In some embodiments a variable reference may be generated from a capacitor voltage.
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公开(公告)号：US10205380B2
公开(公告)日：2019-02-12
申请号：US15431038
申请日：2017-02-13
发明人： Thomas J. Ribarich , Jorge Cerezo , Ajit Dubhashi
摘要： In one implementation, a power converter with over-voltage protection includes a power switch coupled to a power supply through a tank circuit, and a control circuit coupled to a gate of the power switch. The control circuit is configured to turn the power switch OFF based on a current from the tank circuit, thereby providing the over-voltage protection to the power converter. In one implementation, the power converter is a class-E power converter. In one implementation, the control circuit is configured to sense the current from the tank circuit based on a voltage drop across a sense resistor coupled to the power switch.
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公开(公告)号：US10199159B2
公开(公告)日：2019-02-05
申请号：US15535811
申请日：2015-11-25
发明人： Koji Nakajima , Takashi Kumagai , Yuji Shirakata , Yujiro Kido
IPC分类号： H02M7/155 , H01F27/38 , H02M3/335 , H02M7/00 , H05K1/02 , H05K1/11 , H01F27/28 , H01F27/42 , H01F27/40
摘要： An insulation type step-down converter includes first and second step-down transformers each of which includes an input-side coil and an output-side coil. First, second, third, and fourth rectifier elements are connected in series with first, second, third, and fourth series coils, respectively, the first, second, third, and fourth series coils each having the output-side coil of the first step-down transformer and the output-side coil of the second step-down transformer connected in series. The first to fourth series coils are connected to smoothing coils. The connection is such that electric currents flow simultaneously only in one of the first and second series coils and one of the third and fourth series coils in an alternate manner, and electric currents flowing simultaneously in one of the first and second series coils and one of the third and fourth series coils are opposite in direction to each other.
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公开(公告)号：US10122261B2
公开(公告)日：2018-11-06
申请号：US15736051
申请日：2015-06-15
发明人： Taichiro Tsuchiya
摘要： An MMC includes arms each configured with one unit converter or a plurality of cells connected in series. A control circuit of the cell transmits a voltage detected value of a DC capacitor to a control device and controls on/off of a switching element in accordance with a control signal received from the control device. When the voltage detected value of at least one cell exceeds a first threshold voltage, the control device transmits a gate block signal to the control circuit of each cell. The control circuit of each cell autonomously fixes the switching element of its own main circuit to an off state and short-circuits the output terminals of the main circuit, irrespective of the control signal, when its own voltage detected value exceeds a second threshold voltage higher than the first threshold voltage.
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公开(公告)号：US10116227B2
公开(公告)日：2018-10-30
申请号：US15263979
申请日：2016-09-13
发明人： Boyu Pu , Yi Zhang , Zheng Wang , Zhao Wang , Hailong Wang , Ming Wang
摘要： The present disclosure relates to a system and method for pulse driving. The system is configured to drive a multi-level converter, including: a main control module generating encoding information which contains driving information according to sampling information; a local control module electrically coupled to the multi-level converter to output control signals to the multi-level converter so as to control on and off of the at least M power switches in the multi-level converter; a first optical fiber coupled to the main control module and the local control module, wherein the local control module receives the encoding information output from the main control module via the first optical fiber and generates the control signals according to the encoding information.
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公开(公告)号：US20180198380A1
公开(公告)日：2018-07-12
申请号：US15866392
申请日：2018-01-09
IPC分类号： H02M7/219 , H02M1/42 , H02M7/155 , H03K17/30 , H03K17/06 , H02M7/5388 , H03K17/74 , H02M1/00
CPC分类号： H02M7/219 , H01L2924/13091 , H02M1/4233 , H02M1/4258 , H02M7/155 , H02M7/4807 , H02M7/5388 , H02M2001/0058 , H02M2007/2195 , H03K17/06 , H03K17/302 , H03K17/74 , Y02B70/1491
摘要： An AC/DC conversion circuit, including: four bidirectional switches forming an H bridge; a capacitor connected between input nodes of the bridge; a capacitor connected between output nodes of the bridge; and a control circuit capable of controlling the bridge alternately to a first configuration where first and second diagonals of the bridge are respectively conductive and non-conductive, and to a second configuration where the first and second diagonals are respectively non-conductive and conductive, the control circuit being capable, during a phase of transition between the first and second configurations, of: turning off the switches of the first diagonal; and for each switch of the second diagonal, turning on the switch only when the voltage thereacross takes a zero value.
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公开(公告)号：US10014796B2
公开(公告)日：2018-07-03
申请号：US15177241
申请日：2016-06-08
申请人： NOBLE CORPORATION
发明人： You Wei Meng , Bo Gao
CPC分类号： H02M7/06 , H02M5/12 , H02M2001/0048 , Y02B70/1491
摘要： A transformer system includes: a main transformer including a primary winding coupled to AC mains and a secondary winding; a load circuit including a load switch configured to be coupled to a load, the load circuit being coupled to the secondary winding of the main transformer; an auxiliary power supply coupled to AC mains; a controller coupled to an output of the auxiliary power supply; an electronic switch between the AC mains and the primary winding of the main transformer and configured to be controlled by the controller; and a load detector coupled to the load circuit and configured to detect whether the load is connected to the main transformer and to output a load signal to the controller in accordance with whether or not the load is connected to the main transformer, wherein the controller is configured to control the electronic switch in accordance with the load signal.
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