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1. 发明公开

US20230361670A1 Switch Controller Circuit And Method For Controlling Switching 审中-公开
公开(公告)号：US20230361670A1
公开(公告)日：2023-11-09
申请号：US18311400
申请日：2023-05-03
申请人： TDK-Lambda UK Limited
发明人： Leonard DOBOS , Anthony NEW
IPC分类号： H02M1/08 , H02M1/38 , H03K17/687 , G01R15/06
CPC分类号： H02M1/08 , H02M1/38 , H03K17/6871 , G01R15/06 , H03K2217/0063 , H03K2217/0072
摘要： Switch controller circuit (10) for controlling switching in a topology (1) having a first switch (4), a second switch (5), and a switching node (6) coupled therebetween. A driver arrangement (101,104,105) controls the first and second switches (4,5) to alternately open and close, wherein a deadtime period is applied between the opening of one switch (4) and the closing of the other switch (5) in use. A voltage sensor (106) connected to the switching node (6) provides feedback based on a sensed voltage as it transitions between high and low voltage states and sets a length of the deadtime period based on a measured first time period and a multiplier coefficient. The first time period is measured from a time of opening of one of the switches to a time when the sensed voltage transitions through a threshold set between the high and low voltage states.

2. 发明申请

US20210368649A1 FAN CONTROLLER 有权
公开(公告)号：US20210368649A1
公开(公告)日：2021-11-25
申请号：US17324534
申请日：2021-05-19
申请人： TDK-LAMBDA UK LIMITED
发明人： Quinn Kneller , Mark Saintey
IPC分类号： H05K7/20
摘要： Fan controller (1) for a modular power supply having a fan (13). An output (8) is provided for transmitting control signals to the fan (13) for controlling fan speed. A plurality of sensor modules (20) are associated with a respective module (11,6,7) of the modular power supply. Each sensor module (20) includes a temperature detecting circuit comprising a sensor for sensing temperature variations in the respective module (11,6,7), a fan control circuit (30) galvanically isolated from the temperature detecting circuit for outputting a control signal to the output (8) for controlling the fan (13), and an optocoupler (10,9) for transferring an output signal from the temperature detecting circuit (20) to the fan control circuit (30) for generating the control signal.

3. 发明授权

US09780642B2 Energy recovery snubber 有权
公开(公告)号：US09780642B2
公开(公告)日：2017-10-03
申请号：US14617329
申请日：2015-02-09
申请人： TDK-Lambda UK Limited
发明人： Andrew John Skinner , Atul Abhyankar
IPC分类号： G05F1/00 , H02M1/34 , H02M3/155 , H02M3/335
CPC分类号： H02M1/34 , H02M3/155 , H02M3/33507 , H02M2001/342 , H02M2001/346 , H02M2001/348 , Y02B70/1433 , Y02B70/1491
摘要： An energy recovery snubber circuit for a power converter which includes a flyback transformer driven by a converter switch is disclosed. The snubber circuit includes two capacitors which are connected such that, when the snubber circuit is connected to a primary winding of the flyback transformer, the capacitors are charged in series by current flowing in a first direction in the primary winding when the converted switch is turned OFF, to recover energy stored in the leakage inductance of the transformer, and discharged in parallel to cause current flow in a second direction in the primary winding of the transformer, to thereby transfer the recovered energy to the transformer.

4. 发明授权

US11764524B2 Terminal connector 有权
公开(公告)号：US11764524B2
公开(公告)日：2023-09-19
申请号：US17480645
申请日：2021-09-21
申请人： TDK-LAMBDA UK LIMITED
发明人： Radoslav Solc
IPC分类号： H01R13/7197 , H01R12/53 , H01R12/58 , H02M3/00
CPC分类号： H01R13/7197 , H01R12/53 , H01R12/58 , H02M3/003
摘要： A terminal connector for attachment to a circuit board. The terminal connector comprises first and second terminals, each comprising a connection end for connection to respective contacts in the circuit board and a wire attachment formation for connecting a wire to the respective terminal. The terminal connector further comprises a ferrite core surrounding a section of both the first and second terminals between their terminal contacts and wire attachment formations. The ferrite core is directly connected to the terminals and is secured to the circuit board by the terminals when their connection ends are connected to the respective contacts in the circuit board.

5. 发明申请

US20220094119A1 TERMINAL CONNECTOR 有权
公开(公告)号：US20220094119A1
公开(公告)日：2022-03-24
申请号：US17480645
申请日：2021-09-21
申请人： TDK-LAMBDA UK LIMITED
发明人： Radoslav Solc
IPC分类号： H01R13/7197 , H01R12/58 , H01R12/53
摘要： A terminal connector for attachment to a circuit board. The terminal connector comprises first and second terminals, each comprising a connection end for connection to respective contacts in the circuit board and a wire attachment formation for connecting a wire to the respective terminal. The terminal connector further comprises a ferrite core surrounding a section of both the first and second terminals between their terminal contacts and wire attachment formations. The ferrite core is directly connected to the terminals and is secured to the circuit board by the terminals when their connection ends are connected to the respective contacts in the circuit board.

6. 发明公开

US20240396424A1 Controller for a Multi-Phase Power Converter, Multi-Phase Power Converter and Method 审中-公开
公开(公告)号：US20240396424A1
公开(公告)日：2024-11-28
申请号：US18670479
申请日：2024-05-21
申请人： TDK-Lambda UK Limited
发明人： Leornard DOBOS , Anthony NEW
IPC分类号： H02M1/00 , H02M1/084 , H02M3/335
CPC分类号： H02M1/0043 , H02M1/0009 , H02M1/084 , H02M3/33576
摘要： A controller (10) for controlling switching in a multiphase power converter (1) having a plurality of converter bridges (2a, 2b), each associated with a phase. The controller (10) includes a driver block (10a) for generating gate driver signals for controlling power switches (HS1-4, LS1-4) in each of the converter bridges (2a, 2b), an imbalance sensor block (10b) for identifying a power imbalance between the plurality of converter bridges (2a, 2b), and an adjustment block (10c) for adjusting the control of the power switches (HS1-4, LS1-4) in response to the detection of a power imbalance by modifying timing of the generated gate driver signals.

7. 发明申请

US20210037638A1 POWER SUPPLY APPARATUS 有权
公开(公告)号：US20210037638A1
公开(公告)日：2021-02-04
申请号：US17046082
申请日：2019-04-04
申请人： TDK-LAMBDA UK LIMITED
发明人： Alex KNILL , Giorgio PONZO , Robin JEFFERY
IPC分类号： H05K1/02 , H05K3/00
摘要： Power supply apparatus (10) comprising a circuit board (11) and one or more power devices (12) attached to a first surface (11a) of the circuit board (11). A plate (14a) composed of a thermally conductive plastic faces the first surface of the circuit board (11). A thermally conductive encapsulant (15) is provided between the first surfaces (11a) of the circuit board (11) and the plate (14a). The circuit board (11) comprises one or more heat-spreading layers (212*,213*) configured to enhance heat transfer in directions parallel to the first surface (11a) of the circuit board (11). The first surface (14aa″) of the plate (14a) may also be irregular and comprises one or more first regions (32) and one or more second regions (31) that are further from the first surface (11a) of the circuit board (11) than the one or more first regions (32), with the one or more power devices (12) being aligned with the one or more second regions (31).

8. 发明申请

US20150244254A1 Energy Recovery Snubber 有权
标题翻译：能量回收缓冲器
公开(公告)号：US20150244254A1
公开(公告)日：2015-08-27
申请号：US14617329
申请日：2015-02-09
申请人： TDK-Lambda UK Limited
发明人： Andrew John Skinner , Atul Abhyankar
IPC分类号： H02M1/34 , H02M3/155
CPC分类号： H02M1/34 , H02M3/155 , H02M3/33507 , H02M2001/342 , H02M2001/346 , H02M2001/348 , Y02B70/1433 , Y02B70/1491
摘要： An energy recovery snubber circuit for a power converter which includes a flyback transformer driven by a converter switch is disclosed. The snubber circuit includes two capacitors which are connected such that, when the snubber circuit is connected to a primary winding of the flyback transformer, the capacitors are charged in series by current flowing in a first direction in the primary winding when the converted switch is turned OFF, to recover energy stored in the leakage inductance of the transformer, and discharged in parallel to cause current flow in a second direction in the primary winding of the transformer, to thereby transfer the recovered energy to the transformer.
摘要翻译：公开了一种用于功率转换器的能量恢复缓冲电路，其包括由转换器开关驱动的回扫变压器。缓冲电路包括两个电容器，这两个电容器连接成使得当缓冲电路连接到回扫变压器的初级绕组时，当转换的开关转动时，电容器通过在初级绕组中沿第一方向流动的电流串联充电关闭，以恢复存储在变压器的漏电感中的能量，并且平行放电以在变压器的初级绕组中沿第二方向流动电流，从而将恢复的能量传递到变压器。

9. 发明授权

US12022606B2 Power supply apparatus 有权
公开(公告)号：US12022606B2
公开(公告)日：2024-06-25
申请号：US17046082
申请日：2019-04-04
申请人： TDK-LAMBDA UK LIMITED
发明人： Alex Knill , Giorgio Ponzo , Robin Jeffery
IPC分类号： H05K1/02 , H05K3/00
CPC分类号： H05K1/0207 , H05K1/0209 , H05K3/0061
摘要： Power supply apparatus (10) comprising a circuit board (11) and one or more power devices (12) attached to a first surface (11a) of the circuit board (11). A plate (14a) composed of a thermally conductive plastic faces the first surface of the circuit board (11). A thermally conductive encapsulant (15) is provided between the first surfaces (11a) of the circuit board (11) and the plate (14a). The circuit board (11) comprises one or more heat-spreading layers (212*,213*) configured to enhance heat transfer in directions parallel to the first surface (11a) of the circuit board (11). The first surface (14aa″) of the plate (14a) may also be irregular and comprises one or more first regions (32) and one or more second regions (31) that are further from the first surface (11a) of the circuit board (11) than the one or more first regions (32), with the one or more power devices (12) being aligned with the one or more second regions (31).

10. 发明授权

US11264913B2 Apparatus and methods for use in a resonant converter 有权
公开(公告)号：US11264913B2
公开(公告)日：2022-03-01
申请号：US16962127
申请日：2019-01-14
申请人： TDK-LAMBDA UK LIMITED
发明人： Andrew John Skinner , Carlos Toyos Bada
IPC分类号： H02M3/335 , H02M3/00 , H02M1/00
摘要： An apparatus (21) is described for facilitating emulated current-mode control of a resonant converter (1). The apparatus (21) comprises: an input (21) a for a first signal suitable for use in determining a phase of a resonant current, wherein the resonant current corresponds to a current in a resonant network (3) of the converter (1); an input (21b) for a second signal suitable for use in determining a target phase difference between the resonant current and a driving voltage, wherein the driving voltage corresponds to a voltage provided by a switch network (2) of the converter (1) to the resonant network (3); one or more outputs (21c, 21d) for one or more control signals for controlling operation of the switch network (2); and circuitry (21e-i). The circuitry (21e-i) is configured to: use the first signal in determining a first value, wherein the first value is related to a phase difference between the resonant current and the driving voltage; use the second signal in determining a second value, wherein the second value is related to the target phase difference; and set the one or more control signals based at least in part on a comparison of the first and second values, wherein the one or more control signals are for causing the phase difference to track the target phase difference.

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