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.

公开(公告)号：US20240291400A1

公开(公告)日：2024-08-29

申请号：US18573039

申请日：2022-06-15

申请人： ALSTOM Holdings

发明人： Erik VELANDER ,  Magnus JANSSON ,  Johnny HOLMBERG

IPC分类号： H02M7/5387 ,  B61C3/02 ,  H02M1/088 ,  H02M1/32 ,  H02M7/219

CPC分类号： H02M7/53873 ,  H02M1/088 ,  H02M7/219 ,  B61C3/02 ,  H02M1/325

摘要： A voltage source converter includes two half bridges each having two current valves connected in series to be connected to opposite poles of a DC source/load. A gate drive unit controls a semiconductor device of a current valve. An arrangement carries out voltage measurements for providing a value of DC voltage between the opposite poles. A voltage divider connected across the two current valves measures DC voltage between opposite poles and each voltage divider has an output connected to processing parts delivering a digital signal representing a value of the DC voltage between the poles. Two gate drive units send a digital signal to a calculating unit to carry out a quality estimation of the digital signals and to calculate a DC voltage value from the signals while giving each signal a weight corresponding to the quality value adhered thereto and then forming a weighted average value.

公开(公告)号：US20240291376A1

公开(公告)日：2024-08-29

申请号：US18541309

申请日：2023-12-15

申请人： Lutron Technology Company LLC

发明人： Robert C. Newman, JR. ,  Daniel F. Carmen ,  Christopher J. Salvestrini ,  Matthew V. Harte

IPC分类号： H02M1/08 ,  H02M1/088 ,  H02M1/32 ,  H02M5/257 ,  H02M5/293 ,  H02M7/06 ,  H05B39/04 ,  H05B45/10 ,  H05B45/37 ,  H05B45/3725

CPC分类号： H02M1/081 ,  H02M1/088 ,  H02M1/32 ,  H02M5/2573 ,  H02M5/293 ,  H02M7/06 ,  H05B39/04 ,  H05B39/044 ,  H05B39/048 ,  H05B45/10 ,  H05B45/37 ,  H05B45/3725 ,  H02M1/0006 ,  H02M1/0012 ,  H05B45/375 ,  H05B45/38 ,  H05B45/39

摘要： A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.

公开(公告)号：US20240277398A1

公开(公告)日：2024-08-22

申请号：US18682561

申请日：2022-08-10

申请人： ACCUPULSE MEDICAL TECHNOLOGY (SUZHOU) CO., LTD.

发明人： Chenggang ZHAO

IPC分类号： A61B18/12 ,  A61B18/00 ,  A61B18/14 ,  H02M1/32 ,  H02M3/00 ,  H02M3/335

CPC分类号： A61B18/1206 ,  A61B18/1492 ,  H02M1/32 ,  H02M3/01 ,  H02M3/33569 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00702 ,  A61B2018/0072 ,  A61B2018/00767 ,  A61B2018/00892 ,  A61B2018/00922

摘要： A high-voltage generating circuit for a catheter and an ablation tool. The high-voltage generating circuit comprises: N voltage conversion units (111a, 121a, 131a, 141a), N energy storage units (112a, 122a, 132a, 142a), a voltage adjustment unit (200a), and a control unit (300a). Input ends of the N voltage conversion units (111a, 121a, 131a, 141a) are connected in parallel and then connected to a total input end, and output ends of the N voltage conversion units (111a, 121a, 131a, 141a) are connected in series and then connected to a total output end; the N energy storage units (112a, 122a, 132a, 142a) have one-to-one correspondence to the N voltage conversion units (111a, 121a, 131a, 141a); an input end of the voltage adjustment unit (200a) is connected to the output ends of the voltage conversion units (111a 121a 131a 141a) and an output end of the voltage adjustment unit (200a) is connected to the total output end; and the control unit (300a) is connected to the N voltage conversion units (111a, 121a, 131a, 141a) and the voltage adjustment unit (200a) so as to adjust the output voltage of the total output end to be a target voltage. In this way, the output voltage can be quickly switched to the target voltage by means of the multiple input-parallel output-series voltage conversion units (111a, 121a 131a, 141a), and meanwhile, the output range of the voltage is widened, such that the application prospect of a pulsed electric field ablation technology in treatment of arrhythmia is improved.

公开(公告)号：US12068678B2

公开(公告)日：2024-08-20

申请号：US17741633

申请日：2022-05-11

申请人： Acer Incorporated

发明人： Tzu-Tseng Chan

IPC分类号： H02M1/32 ,  H02M3/158 ,  H02M7/219

CPC分类号： H02M1/32 ,  H02M3/158 ,  H02M7/219

摘要： A power supply device for suppressing the surge includes a bridge rectifier, a first surge absorption circuit, a second surge absorption circuit, a third surge absorption circuit, and a boost converter. The bridge rectifier generates a rectified voltage according to a first input voltage and a second input voltage. The first surge absorption circuit receives the rectified voltage. The first surge absorption circuit is coupled to a ground. The second surge absorption circuit is coupled to the first surge absorption circuit. The third surge absorption circuit is coupled to the second surge absorption circuit. The third surge absorption circuit includes a transformer. The boost converter is coupled to the third surge absorption circuit, and generates an output voltage. The first surge absorption circuit provides a high impedance value. The second surge absorption circuit provides a median impedance value. The third surge absorption circuit provides a low impedance value.

公开(公告)号：US20240275267A1

公开(公告)日：2024-08-15

申请号：US18167319

申请日：2023-02-10

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Shamim Choudhury ,  Sheng-Yang Yu

IPC分类号： H02M1/32 ,  H02M1/00 ,  H02M3/335 ,  H03K17/0812

CPC分类号： H02M1/32 ,  H02M1/0009 ,  H02M3/33573 ,  H02M3/33576 ,  H03K17/08122

摘要： An electronic system for controlling a power converter having an active clamping circuit includes a current sensor configured to sense current through a primary side of a transformer within the power converter, and a comparator sub-system. The comparator sub-system is configured to receive a transformer current signal from the current sensor and generate a trip signal based on a difference between the transformer current signal and a reference signal. The electronic system also includes a pulse width modulator configured to generate a gate input signal for the active clamping circuit based at least in part on the trip signal.

公开(公告)号：US12062910B2

公开(公告)日：2024-08-13

申请号：US17641425

申请日：2020-09-09

申请人： Elexsys IP Pty Ltd

发明人： Bevan Holcombe

IPC分类号： H02J1/08 ,  H02J3/00 ,  H02J13/00 ,  H02M1/32

CPC分类号： H02J1/084 ,  H02J3/007 ,  H02J13/00002 ,  H02M1/322

摘要： The invention relates to a two-way electrical power distribution network including: a high electrical power distribution bus; medium voltage electrical power feed lines; low voltage distribution lines, wherein the low voltage distribution lines are connected to load(s) and/or source(s); and, medium voltage electrical power regulating apparatus including: a DC contactor having DC terminals; a transmission network connector connected to the medium voltage electrical power feed line including: live terminal(s) connected to live connection(s) and a neutral terminal connected to a neutral of the medium voltage electrical power feed line; switches connected to the DC contactor; and electronic controlling devices coupled to the switches and control the switches to independently regulate electrical power on each of the live connection and the neutral connection of the medium voltage electrical power feed line to thereby maintain a voltage in the electrical power distribution bus during different load and source conditions.

公开(公告)号：US20240266948A1

公开(公告)日：2024-08-08

申请号：US18415208

申请日：2024-01-17

申请人： Cirrus Logic International Semiconductor Ltd.

发明人： John B. BOWLERWELL ,  Eric J. KING ,  Alastair M. BOOMER ,  Malcolm BLYTH

IPC分类号： H02M1/32 ,  H01L23/34 ,  H02M1/00 ,  H02M3/156

CPC分类号： H02M1/327 ,  H01L23/34 ,  H02M1/0009 ,  H02M3/156

摘要： A method for controlling an input current limit of boost converter circuitry, the method comprising: receiving a power dissipation value for the boost converter circuitry; and controlling an input current limit of the boost converter circuitry based on the power dissipation value.

公开(公告)号：US20240262226A1

公开(公告)日：2024-08-08

申请号：US18586588

申请日：2024-02-26

申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft

发明人： Joseph ENGEL

IPC分类号： B60L53/22 ,  B60L53/60 ,  B60L53/62 ,  H02J5/00 ,  H02J7/00 ,  H02J7/02 ,  H02J7/34 ,  H02M1/32

CPC分类号： B60L53/22 ,  B60L53/62 ,  H02J7/00304 ,  H02J7/02 ,  H02J7/345 ,  H02M1/32 ,  B60L53/60 ,  B60L2270/20 ,  H02J5/00 ,  Y02T10/7072

摘要： A battery charger of an electric vehicle has a relay controllably connecting and separating an AC source and an internal power line. When starting up the battery charger, before first commanding the relay to close, voltages are measured on an input side of the relay, connected to the AC source to receive; and on an output side of the relay, connected to the power line, when the output side is electrically isolated from the input side due to the relay being in its open state. If there is a difference between these measured voltages that is greater than a threshold value, a capacitor coupled to the power line is charged. After the capacitor is charged, then the command to close the relay is issued. Upon the relay closing, the battery charger circuit charges the battery via the power line using the incoming AC power.

公开(公告)号：US12057776B2

公开(公告)日：2024-08-06

申请号：US18233255

申请日：2023-08-11

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Anders Lind

IPC分类号： H02M3/158 ,  H02M1/00 ,  H02M1/08 ,  H02M1/32 ,  H02M1/42 ,  H02M7/219

CPC分类号： H02M3/1588 ,  H02M1/0009 ,  H02M1/083 ,  H02M1/32 ,  H02M1/4225 ,  H02M7/219 ,  H02M1/4233

摘要： A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.