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公开(公告)号：EP3319401A4
公开(公告)日：2018-06-13
申请号：EP16821017
申请日：2016-06-28
CPC分类号： G05F1/56 , H05B33/0884 , H05B37/02 , Y02B20/46
摘要： A dimming device is provided which is compatible with an increased number of types of illumination loads. The dimming device includes a pair of input terminals, a bidirectional switch, an inputter, a power supply (5), a controller, and a current limiter (53). The power supply (5) is electrically connected between the pair of input terminals and is supplied with electric power from an AC power supply to generate control electric power. The controller is supplied with the control electric power from the power supply (5) to operate. The controller is configured to control the bidirectional switch in accordance with a dimming level. The current limiter (53) stops generation of the control electric power by the power supply (5) when a current larger than or equal to a specified value flows from the AC power supply through the power supply (5).
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公开(公告)号：EP3319400A4
公开(公告)日：2018-07-11
申请号：EP16821016
申请日：2016-06-28
IPC分类号： H05B37/02 , H02M1/00 , H02M1/08 , H03K17/0412 , H03K17/687
CPC分类号： H05B33/0845 , H02M1/08 , H02M1/083 , H02M7/25 , H02M2001/0029 , H02M2001/0054 , H03K17/0412 , H03K17/04123 , H03K17/687 , H05B33/0815 , H05B37/02 , Y02B20/42 , Y02B20/46
摘要： A dimming device is provided which is compatible with an increased number of types of illumination loads. A signal source (910) generates a drive signal (Sd1) according to a dimming level. A discharge part (920) includes a series circuit having a Zener diode (ZD1) and a rectifier element (D9) connected in series. The series circuit enables passage of a reverse current of the Zener diode (ZD1). In the discharge part (920), the series circuit is electrically connected between a control terminal (20) and the signal source (910) to enable the reverse current of the Zener diode (ZD1) to flow from the control terminal (20) to the signal source (910).
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公开(公告)号：EP3307026A4
公开(公告)日：2018-07-04
申请号：EP16807085
申请日：2016-05-30
发明人： GOTOU KIYOSI , MIYAKE TOMOHIRO , SUZUKI TAKEO
IPC分类号： H05B33/08 , H05B39/04 , H05B41/392
CPC分类号： H05B37/0209 , H03K17/6871 , H05B33/0845 , H05B39/048 , H05B41/3924 , Y02B20/42 , Y02B20/46
摘要： A dimmer compatible with more kinds of loads is provided. A bidirectional switch (2) is switched so as to conduct and interrupt a bidirectional current between a pair of input terminals (11, 12). A power supply (5) is electrically connected between the pair of input terminals (11, 12) and produces control power by electric power from an AC power supply (8). A controller (6) receives the control power from the power supply (5) to be activated. The controller (6) causes the bidirectional switch (2) to be in an off-state from a start point of a half cycle of AC voltage (Vac) to a first time point when first time elapses. The controller (6) causes the bidirectional switch (2) to be in an on-state from the first time point to a second time point when second time according to the dimming level elapses. The controller (6) causes the bidirectional switch (2) to be in an off-state from the second time point to an end point of the half cycle.
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