公开(公告)号：US20250055380A1

公开(公告)日：2025-02-13

申请号：US18787225

申请日：2024-07-29

Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

Inventor： CHUNSHENG ZHAO

IPC: H02M3/335 ,  H02M1/08

Abstract: System and method for controlling synchronous rectification. For example, a system for controlling synchronous rectification includes: a first controller terminal configured to receive a first input voltage; a second controller terminal biased to a second input voltage; a third controller terminal configured to output an output voltage; a first signal generator configured to generate a logic signal based on at least information associated with the first input voltage; a second signal generator configured to receive the logic signal and generate an adjustment signal based on at least information associated with the logic signal and the first input voltage; and a driver configured to receive the logic signal and the adjustment signal and generate the output voltage based at least in part on the logic signal and the adjustment signal.

公开(公告)号：US12224666B2

公开(公告)日：2025-02-11

申请号：US17748772

申请日：2022-05-19

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Shatabda Saha

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/08 ,  H02M1/14

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a dc-dc converter control circuit and methods of manufacture. The structure includes a dynamic pulse width modulation (PWM) circuit which converts a sense voltage to a variable current in response to a load current being above a predetermined threshold, and a ramp generator circuit which receives the variable current from the dynamic PWM circuit and dynamically adjusts a fixed base frequency of a PWM signal to a dynamic frequency of the PWM signal which corresponds with the load current.

公开(公告)号：US12220992B2

公开(公告)日：2025-02-11

申请号：US18152951

申请日：2023-01-11

Applicant: BorgWarner US Technologies LLC

Inventor： Seyed R. Zarabadi ,  Mark Wendell Gose ,  Peter Allan Laubenstein

IPC: B60L50/60 ,  B60L3/00 ,  B60L15/00 ,  B60L15/08 ,  B60L50/40 ,  B60L50/51 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/40 ,  H01L21/48 ,  H01L23/00 ,  H01L23/15 ,  H01L23/367 ,  H01L23/373 ,  H01L23/40 ,  H01L23/467 ,  H01L23/473 ,  H01L23/495 ,  H01L23/538 ,  H01L25/00 ,  H01L25/07 ,  H01L29/66 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/12 ,  H02M1/32 ,  H02M1/42 ,  H02M1/44 ,  H02M3/335 ,  H02M7/00 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P29/024 ,  H02P29/68 ,  H05K1/14 ,  H05K1/18 ,  H05K5/02 ,  H05K7/20 ,  B60L15/20 ,  H03K19/20

Abstract: A system comprises: one or more point-of-use controllers configured to: assert a command-on signal to load a first turn-on gate driver profile; control, based on the loaded first turn-on gate driver profile, a gate driver to begin a first phase of a turn-on operation; receive a first power switch signal based on one or more of a detected voltage or a detected current; perform a comparison of the received first power switch signal to a first turn-on threshold value; load a second gate turn-on driver profile when the comparison indicates the first power switch signal is greater than the first turn-on threshold value; and control, based on the loaded second turn-on gate driver profile, the gate driver to end the first phase of the turn-on operation and begin a second phase of the turn-on operation.

公开(公告)号：US20250047271A1

公开(公告)日：2025-02-06

申请号：US18924210

申请日：2024-10-23

Applicant: Texas Instruments Incorporated

Inventor： Gaetano Maria Walter Petrina ,  Michael Lueders ,  Nicola Rasera

IPC: H03K5/1534 ,  H02M1/08 ,  H02M1/38 ,  H03K5/00 ,  H03K5/13

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for cross-conduction detection. An example apparatus includes a cross detector circuit including a first transistor and a second transistor, the first transistor coupled to a load, a third transistor coupled to a first controlled delay circuit and the first transistor, a fourth transistor coupled to a second controlled delay circuit and to the third transistor at a phase node, and a control circuit coupled to the first controlled delay circuit, the second controlled delay circuit, and the load.

公开(公告)号：US20250047207A1

公开(公告)日：2025-02-06

申请号：US18792592

申请日：2024-08-02

Applicant: ARK MICROELECTRONIC CORP. LTD.

Inventor： Yi-Lun Shen ,  Yu-Yun Huang

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/08 ,  H02M3/00

Abstract: A controller and a control method for an asymmetric half-bridge power supply are disclosed. The asymmetric half-bridge power supply includes a first arm switch and a second arm switch forming a half-bridge, and a resonant circuit connected to the half-bridge. The method includes providing a duration parameter reflecting a second turn-on time of the second arm switch in a earlier switching cycle; providing a control signal to turn on the first arm switch for a first turn-on time in a later switching cycle; detecting whether the first arm switch has performed ZVS in response to a signal edge of the control signal to adjust the duration parameter accordingly; determining the second turn-on time of the second arm switch in the later switching cycle based on the duration parameter; and turning on the second arm switch for the second turn-on time after the first turn-on time in the later switching cycle.

公开(公告)号：US12214677B2

公开(公告)日：2025-02-04

申请号：US18161992

申请日：2023-01-31

Applicant: BorgWarner US Technologies LLC

Inventor： Mark Wendell Gose ,  Seyed R. Zarabadi ,  David Paul Buehler ,  Kevin M. Gertiser

IPC: G01S17/04 ,  B60L3/00 ,  B60L15/00 ,  B60L15/08 ,  B60L50/40 ,  B60L50/51 ,  B60L50/60 ,  B60L50/64 ,  B60L53/20 ,  B60L53/22 ,  B60L53/62 ,  B60R16/02 ,  G01R15/20 ,  G06F1/08 ,  G06F13/40 ,  H01L21/48 ,  H01L23/00 ,  H01L23/15 ,  H01L23/367 ,  H01L23/373 ,  H01L23/40 ,  H01L23/467 ,  H01L23/473 ,  H01L23/495 ,  H01L23/538 ,  H01L25/00 ,  H01L25/07 ,  H01L29/66 ,  H02J7/00 ,  H02M1/00 ,  H02M1/08 ,  H02M1/084 ,  H02M1/088 ,  H02M1/12 ,  H02M1/32 ,  H02M1/42 ,  H02M1/44 ,  H02M3/335 ,  H02M7/00 ,  H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02P27/06 ,  H02P27/08 ,  H02P29/024 ,  H02P29/68 ,  H05K1/14 ,  H05K1/18 ,  H05K5/02 ,  H05K7/20 ,  B60L15/20 ,  H03K19/20

Abstract: A system includes an inverter including: a point-of-use controller for a power module, the point-of-use controller including: a positive voltage connection configured to receive a positive control voltage from a high-voltage controller; a command connection configured to receive a command from the high-voltage controller; a message connection configured to send and receive a message to and from the high-voltage controller; a negative voltage connection configured to receive a positive control voltage from the high-voltage controller; a north gate connection configured to output a north gate control signal to a north group of one or more switches; a south gate connection configured to output a south gate control signal to a south group of one or more switches; a north sense connection configured to connect to a first portion of a sensing trace; and a south sense connection configured to receive a second portion of the sensing trace.

公开(公告)号：US12212314B2

公开(公告)日：2025-01-28

申请号：US18046396

申请日：2022-10-13

Applicant: Infineon Technologies AG

Inventor： Jens Barrenscheen ,  Marcus Nuebling ,  Markus Zannoth

IPC: H02P27/08 ,  H02M1/08 ,  H02M1/38 ,  H03K17/687 ,  H03K17/689

Abstract: A system including circuitry to communicate data across an isolation barrier of a switch driver circuit. For switch driver circuits with galvanic isolation, the circuitry of this disclosure uses the unavoidable common mode voltages caused by the coupling capacitances of the data transfer circuit to evaluate the common mode voltage characteristics, such as the slew rate of a switching event. The switch driver circuit of this disclosure may include a common mode voltage detector to detect and measure features of the unavoidable common mode voltage during a switching event, such as voltage amplitude and slew rate. The common mode voltage detector may couple to a communication interface that provides the common mode voltage information to a controller for the switch driver circuit. In some examples, based on the received information, the controller may adjust the operation of the switching circuit.

公开(公告)号：US12212235B2

公开(公告)日：2025-01-28

申请号：US17671163

申请日：2022-02-14

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Bertolini ,  Alberto Cattani ,  Stefano Ramorini ,  Alessandro Gasparini

IPC: H02M3/158 ,  H02M1/00 ,  H02M1/08

Abstract: A control circuit operates to control a switching stage of an electronic converter. The control circuit includes: first terminals providing drive signals to electronic switches of the switching stage; a second terminal receiving from a feedback circuit a first feedback signal proportional to a converter output voltage; and a third terminal configured to receive from a current sensor a second feedback signal proportional to an inductor current. A driver circuit provides the drive signals as a function of a PWM signal generated by a generator circuit as a function of the first and second feedback signals, a reference voltage and a slope compensation signal. A mode selection signal is generated as a function of a comparison between the input voltage and the output voltage. A feed-forward compensation circuit is configured to source and/or sink a compensation current as a function of a variation in the mode selection signal.

公开(公告)号：US20250023488A1

公开(公告)日：2025-01-16

申请号：US18780449

申请日：2024-07-22

Applicant: Inertech IP LLC

Inventor： Subrata K. Mondal

IPC: H02M7/483 ,  H02J7/00 ,  H02J9/00 ,  H02J9/06 ,  H02M1/00 ,  H02M1/04 ,  H02M1/08 ,  H02M3/155 ,  H02M3/158 ,  H02M3/335 ,  H02M7/487 ,  H02M7/527

Abstract: Systems and methods of this disclosure use low voltage energy storage devices to supply power at a medium voltage from an uninterruptible power supply (UPS) to a data center load. The UPS includes a low voltage energy storage device (ultracapacitor/battery), a high frequency (HF) bidirectional DC-DC converter, and a multi-level (ML) inverter. The HF DC-DC converter uses a plurality of HF planar transformers, multiple H-bridge circuits, and gate drivers for driving IGBT devices to generate a medium DC voltage from the ultracapacitor/battery energy storage. The gate drivers are controlled by a zero voltage switching (ZVS) controller, which introduces a phase shift between the voltage on the primary and secondary sides of the transformers. When the primary side leads the secondary side, the ultracapacitor/battery discharges and causes the UPS to supply power to the data center, and when the secondary side leads the primary side, power flows from the grid back to the UPS, thereby recharging the ultracapacitor/battery.

公开(公告)号：US12199526B2

公开(公告)日：2025-01-14

申请号：US17927217

申请日：2021-02-05

Applicant: HITACHI ASTEMO, LTD.

Inventor： Shinichirou Wada ,  Tomohiko Yano ,  Yoichiro Kobayashi

IPC: H02M1/08 ,  H01L29/78 ,  H02M1/00 ,  H02M1/088 ,  H02M7/5387

Abstract: Provided is a power conversion device capable of observing a chip temperature with high accuracy without increasing a cost of the power conversion device mounted with a current sense element for observing a main current of a power device. A main control MOSFET 11, a current MOSFET 12, and a diode 13 connected to a source electrode 8 of the main control MOSFET 11 and a source electrode 9 of the current MOSFET 12 are mounted in a chip of a power device, a temperature measurement circuit 3 is connected to the source electrode 9 of the current MOSFET 12, and when the main control MOSFET 11 is in an off state, a forward current (If) is caused to flow through the diode 13, and an anode potential is observed to measure the chip temperature.