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1. 发明公开

EP4054066A1 SYNCHRONOUS FLYBACK CONVERTER 无效
公开(公告)号：EP4054066A1
公开(公告)日：2022-09-07
申请号：EP21160105.9
申请日：2021-03-02
申请人： Tridonic GmbH & Co. KG
发明人： Schertler, Markus , Klotz, Reimar
IPC分类号： H02M3/335
摘要： The invention relates to a synchronous flyback converter (100), comprising a galvanic isolation stage (101); a first controllable switch (103) on a primary side of the galvanic isolation stage (101); a second controllable (105) switch on a secondary side of the galvanic isolation stage (101); and a control unit (107). The control unit (107) is configured to control a switching operation of the first controllable switch (103) and the second controllable switch (105) based on a first control loop which controls an output current of the flyback converter (100) to a target value, and based on a second control loop which controls a negative peak value of a secondary side current to a reference value.

2. 发明公开

EP4358647A1 SYNCHRONOUS FLYBACK CONVERTER WITH FEEDBACK-CONTROLLED SECONDARY SIDE SWITCH 审中-实审
公开(公告)号：EP4358647A1
公开(公告)日：2024-04-24
申请号：EP22202363.2
申请日：2022-10-19
申请人： Tridonic GmbH & Co KG
发明人： Schertler, Markus , Stark, Stefan , Nachbaur, Stefan , Walch, Patrick
IPC分类号： H05B45/32 , H05B45/335 , H02M3/335
CPC分类号： H02M3/33592 , H02M3/33523 , H05B45/385
摘要： A method is proposed for operating a synchronous flyback converter arranged to supply lighting means at its output terminals, the flyback converter having a transformer galvanically separating a primary side and secondary side of the converter. The power transmitted by the converter is feedback-controlled by actively adjusting the conducting time period of secondary side switch, thus adjusting the amount of a negative current flowing through said switch. In case of a change of a nominal value signal commanding the power to be transmitted by the flyback converter, a switching operation parameter of a primary side switch of the converter is adjusted by a feed forward manner. In case of such change of nominal value a feed forward disturbance signal is applied to the conducting time period of secondary side switch.

3. 发明公开

EP3993572A1 WIRELESS MODULE AND COMBINATION OF WIRELESS MODULE AND CIRCUIT BOARD 审中-公开
公开(公告)号：EP3993572A1
公开(公告)日：2022-05-04
申请号：EP20204233.9
申请日：2020-10-28
申请人： Tridonic GmbH & Co. KG
发明人： Lochmann, Frank , Schertler, Markus , Mayrhofer, Markus , Simma, Lukas , Zengerle, Thomas , Schnell, Patrick
IPC分类号： H05K1/11 , H05K1/14 , H01L23/498 , H01L23/00 , H05K3/36 , H05K3/34 , H05K1/02
摘要： A wireless module (1) for a lighting technology device (5) is provided. The device (5) comprises terminals (102, 104, 106, 108) being arranged on a bottom side (100) opposing a component side of the wireless module (1). The terminals (102, 104, 106, 108) have a plurality of footprints. A footprint of each of the terminals (102, 104, 106, 108) off a periphery of the bottom side (100) is less than or equal to a footprint of each of the terminals (102, 104, 106, 108) in the periphery of the bottom side (100). Further, combinations (2; 3; 4) of a wireless module (1) and a circuit board (200; 300; 400) are provided, as well as a lighting technology device (5) comprising such a combination (2; 3; 4).

4. 发明公开

EP3651553A1 A BUS INTERFACE AND A METHOD FOR PREVENTION OF LOCKOUT SITUATION 有权
公开(公告)号：EP3651553A1
公开(公告)日：2020-05-13
申请号：EP18204500.5
申请日：2018-11-06
申请人： Tridonic GmbH & Co. KG
发明人： Lochmann, Frank , Maldoner, Jakob , Netzer, Harald , Schertler, Markus
IPC分类号： H05B37/02 , G06F13/40
摘要： The present invention relates to a module for providing a powered interface, comprising at least one terminal configured to connect a bus having a non-zero DC voltage level in the quiet state; an internal power supply configured to supply a connected bus with DC power, wherein the internal power supply is designed such that it can be switched off; and a control circuitry configured to control the internal power supply, and communicate by receiving and/or sending signals over the bus. The control circuitry of the driver circuit is further configured to carry out the following steps upon receipt of an internal power supply switch-off command: switching off the internal power supply and detecting the bus voltage level at a predetermined time after switching off the internal power supply; and continuing the switched-off state of the internal power supply, when it is determined that the detected bus voltage level is above a threshold value; and switching on again the internal power supply and/or sending out a message over the bus, when it is determined that the detected bus voltage level at the predetermined time after switching off drops to or below the threshold value.

5. 发明公开

EP4380316A1 ISOLATED LED CONVERTER 审中-实审
公开(公告)号：EP4380316A1
公开(公告)日：2024-06-05
申请号：EP22210722.9
申请日：2022-12-01
申请人： Tridonic GmbH & Co. KG
发明人： Nachbaur, Stefan , Schertler, Markus , Stark, Stefan , Walch, Patrick
IPC分类号： H05B45/382 , H05B45/385 , H02M3/335
CPC分类号： H05B45/382 , H05B45/385 , H02M3/33523 , H02M3/33592 , H02M1/0009
摘要： Disclosed is an isolated LED converter (1), comprising a main transformer (111; 121), a primary-side current sensing circuit (112), a secondary-side current sensing circuit (13), and a primary-side control circuit (14). The main transformer (111; 121) comprises inductively coupled windings (111; 121), being arranged on a primary side (11) and on a secondary side (12) of the converter (1), respectively. The primary-side current sensing circuit (112) is arranged in series to the primary-side winding (111), and is configured to sense a signal (113) indicating a current (114, Iprim) through the primary-side winding (111). The secondary-side current sensing circuit (13) is arranged in parallel to the secondary-side winding (121), and is configured to sense a signal (131, ISNS) indicating a current (123) through a load (3) of the converter (1). The primary-side control circuit (14) is configured to sample and hold the signal (131, ISNS) indicating the current (123) through the load (3) during a sample-and-hold period (1421) in accordance with a zero-crossing, ZX (1141), of the signal (113) indicating the current (114, Iprim) through the primary-side winding (111). This assures a correct sampling in a plateau phase of the signal (131, ISNS) indicating a current (123) through the load (3).

6. 发明公开

EP4346073A1 POWER CONVERTER WITH DYNAMIC CURRENT SENSING TIMING 审中-实审
公开(公告)号：EP4346073A1
公开(公告)日：2024-04-03
申请号：EP22197892.7
申请日：2022-09-27
申请人： Tridonic GmbH & Co KG
发明人： Stark, Stefan , Nachbaur, Stefan , Schertler, Markus , Walch, Patrick
IPC分类号： H02M1/00 , H02M3/335 , H05B45/385 , G01R19/25
摘要： A power converter (10) comprises a current sensing circuit (120), which is configured to sample a sensing current during a current sampling time window. The current sampling time window begins at a current sampling start time. Moreover, the power converter (10) comprises a current sensing timing circuit (130), which is configured to adjust the current sampling start time.

7. 发明公开

EP4304066A1 A SENSING CIRCUIT FOR AN ISOLATED CONVERTER 审中-实审
公开(公告)号：EP4304066A1
公开(公告)日：2024-01-10
申请号：EP22183483.1
申请日：2022-07-07
申请人： Tridonic GmbH & Co. KG
发明人： Stark, Stefan , Nachbaur, Stefan , Schertler, Markus , Walch, Patrick
IPC分类号： H02M1/00 , H02M3/335
摘要： The present disclosure relates to the field of switched mode power supplies (SMPS) and isolated converters, in particular for lighting technology. The present disclosure provides a sensing circuit 100 for an isolated converter 201. The sensing circuit 100 is configured to obtain load current information 101, and to obtain load voltage information 102. The sensing circuit 100 is further configured to determine, by a correction module 103 of the sensing circuit 100, corrected load current information 104 based on the load current information 101, the load voltage information 102 and a correction formula 105, wherein the correction formula 105 is configured to compensate a frequency dependent behaviour of the sensing circuit 100, and output the corrected load current information 104.

8. 发明公开

EP4135480A1 LED DRIVER HAVING SELF-ADJUSTING FEED-FORWARD CONTROL 审中-公开
公开(公告)号：EP4135480A1
公开(公告)日：2023-02-15
申请号：EP21190515.3
申请日：2021-08-10
申请人： Tridonic GmbH & Co KG
发明人： Schertler, Markus , Dimic, Nikola
IPC分类号： H05B45/3725 , H02M3/00
摘要： Disclosed is a driver (1) for at least one LED (5). The driver (1) comprises a switched-mode power supply, SMPS, (27, 102, 103) configured to supply the at least one LED (5); a closed-loop control (2) for regulating a controlled variable (28) supplied to the at least one LED (5) in accordance with a reference variable (21); and a feed-forward control (3) for adjusting a control variable (24) of the closed-loop control (2) in dependence of a frequency component of a control error (22) of the closed-loop control (2) and a frequency component (29) of a DC link/bus voltage (113) of the SMPS (27, 102, 103). This avoids an adjustment of a feed-forward (FEFO) gain at a design stage, which is cumbersome and prone to inaccuracies.

9. 发明公开

EP3570203A1 LEUCHTE MIT TRANSPONDER FÜR PARAMETRIERUNG UND ADRESSIERUNG 有权
公开(公告)号：EP3570203A1
公开(公告)日：2019-11-20
申请号：EP19173994.5
申请日：2019-05-13
申请人： Tridonic GmbH & Co. KG
发明人： Lochmann, Frank , Schertler, Markus , Troppacher, Rainer
IPC分类号： G06K7/10 , H05B37/02
摘要： Die vorliegende Erfindung betrifft eine Leuchte mit einem Gehäuse (16), zumindest einem Betriebsgerät (1) zum Betreiben einer oder mehrerer Leuchtmittel (2, 3) der Leuchte (15), wobei das Betriebsgerät (1) in dem Gehäuse (16) untergebracht ist und einen Transponder (7) mit einer ersten Antenne (10) aufweist, der dazu ausgebildet ist, Signale von einem Kommunikationsgerät (8) zu empfangen und/oder Signale an das Kommunikationsgerät (8) zu senden sowie eine an dem Gehäuse (16) angebrachte und mit der ersten Antenne (10) gekoppelte zweiten Antenne (11), die dazu ausgebildet ist, von dem Kommunikationsgerät (8) gesendete Signale für eine Weiterleitung mittels der Kopplung an die erste Antenne (10) zu empfangen und/oder von dem Transponder (7) über die erste Antenne (10) gesendete und mittels der Kopplung erhaltene Signale an das Kommunikationsgerät (8) zu senden.

10. 发明公开

EP4395469A1 CONTROL DEVICE WITH CONFLICT DETECTION WITHIN A LIGHTING SYSTEM 审中-公开
公开(公告)号：EP4395469A1
公开(公告)日：2024-07-03
申请号：EP22217065.6
申请日：2022-12-29
申请人： Tridonic GmbH & Co. KG
发明人： Schertler, Markus , Nesensohn, Christian
IPC分类号： H05B47/18 , H05B47/175
CPC分类号： H05B47/175 , H05B47/18
摘要： A control device (100) comprises an interface (110) for connecting to an external communication; a bus power supply unit (120) that is configured to supply power to a specific-bus via the interface (110) when active; and an internal intelligence (130), which is configured to control at least the bus power supply unit (120). Hereby the interface (110) is connected to an external communication device (300, 400), which may be specific-bus communication device (300) or an other communication device. Hereby the interface (110) is adapted to detect an interface signal (200) at the interface (110), wherein the interface signal (200) is provided to the internal intelligence (130) via an internal communication (111), wherein the internal intelligence (130) is configured to evaluate, based on the interface signal (200) retrieved via the internal communication (111), whether the detected interface signal (200) is a specific-bus signal (210), which is characteristic of a connected specific-bus communication device (300), or an other control signal. Furthermore the internal intelligence (130) is configured to detect a conflict when an other control signal is evaluated and the bus power supply unit (120) is active, and upon detection of the conflict, to initiate an output of a signal and/or to deactivate the bus power supply unit (120).

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