公开(公告)号：EP3146804A4

公开(公告)日：2018-02-28

申请号：EP15795705

申请日：2015-05-20

申请人： GERARD LIGHTING HOLDINGS PTY LTD

发明人： VANDERZON JAMES

IPC分类号： H05B39/02 ,  G01R19/165 ,  G05F5/00 ,  H02M1/08 ,  H02M7/00 ,  H03K3/2893 ,  H03K5/1536 ,  H05B39/04

CPC分类号： H05B33/0845 ,  G01R19/16566 ,  G01R19/1659 ,  G01R19/175 ,  H02M1/083 ,  H02M1/44 ,  H02M5/293 ,  H02M2001/0058 ,  H02M2005/2935 ,  H03K3/2893 ,  H03K3/2897 ,  H03K5/1536 ,  H05B33/0815 ,  H05B39/02 ,  H05B39/044 ,  Y02B70/1491

摘要： A zero-crossing detection circuit for a trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, wherein the circuit includes: a switching circuit for controlling delivery of AC power to the load by conducting power to the load in an ON state and not conducting power to the load in an OFF state; a switching control circuit for controlling turn-OFF and turn-ON of the switching circuit at each cycle of the AC; and a rectifier for rectifying the AC power in the non-conduction period to generate rectified dimmer voltage to be provided to the dimmer circuit, wherein the zero-crossing detection circuit includes a current sink circuit; wherein the current sink circuit has a low impedance at low instantaneous AC voltages; a comparator circuit configured to detect zero crossings of a first threshold value of the rectified dimmer voltage.

公开(公告)号：EP3146802A4

公开(公告)日：2018-02-14

申请号：EP15796419

申请日：2015-05-20

申请人： GERARD LIGHTING HOLDINGS PTY LTD

发明人： VANDERZON JAMES

IPC分类号： H02H3/00 ,  H02H3/02 ,  H02H3/093 ,  H02M1/00 ,  H02M1/08 ,  H05B33/08 ,  H05B37/00 ,  H05B37/02 ,  H05B39/04

CPC分类号： H05B33/0845 ,  H02H3/021 ,  H02H3/093 ,  H02M1/08 ,  H02M2001/0058 ,  H05B37/02 ,  H05B39/044 ,  Y02B20/146

摘要： A trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load with short-circuit protection, wherein a switching control circuit includes a zero-crossing detection circuit configured to detect zero crossings of the AC and to detect crossings of a first threshold value and a second threshold value of the rectified dimmer voltage, and wherein the zero-crossing detection circuit is further configured to initiate the switching circuit to commence one of the conduction periods when the rectified dimmer voltage crosses below the first threshold value and to initiate the switching circuit to prematurely terminate one of the conduction periods when the rectified dimmer voltage crosses above the second threshold value to provide short-circuit protection for the trailing edge phase control dimmer circuit.

公开(公告)号：EP3146800A4

公开(公告)日：2018-01-24

申请号：EP15795349

申请日：2015-05-20

申请人： GERARD LIGHTING HOLDINGS PTY LTD

发明人： VANDERZON JAMES

IPC分类号： H05B37/00 ,  H03K17/042 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H03K17/04213 ,  H05B33/0845

摘要： A trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, the circuit including: a switching circuit for controlling delivery of AC power to the load by conducting power to the load in an ON state and not conducting power to the load in an OFF state; and a switching control circuit for controlling turn-OFF and turn-ON of the switching circuit at each cycle of the AC to control switching of the ON and OFF states of the switching circuit, wherein the switching control circuit controlling turn-OFF of the switching circuit includes controlling a turn-OFF transition of the switching circuit between the ON state and the OFF state of the switching circuit extending for a selected turn-OFF transition time, and wherein the switching control circuit further includes a dv/dt feedback circuit for controlling a turn-OFF transition profile indicative of a drain voltage of the switching circuit of the turn-OFF transition and the selected turn-OFF transition time by returning at least some dv/dt feedback current generated by the switching circuit back to the switching circuit, whereby the dv/dt feedback circuit is configured to control said at least some dv/dt feedback current over the turn-OFF transition so as to reduce a rate of change of at least an initial region of the turn-OFF transition profile to minimize harmonics generation by the switching circuit.

公开(公告)号：EP3146801A4

公开(公告)日：2018-03-14

申请号：EP15795533

申请日：2015-05-20

申请人： GERARD LIGHTING HOLDINGS PTY LTD

发明人： VANDERZON JAMES

IPC分类号： H05B41/00 ,  G01R19/175 ,  G05F5/00 ,  H02M1/08 ,  H02M7/00 ,  H03K5/1536 ,  H05B39/04 ,  H05B41/392

CPC分类号： H02M5/2573 ,  G01R19/175 ,  H02M1/081 ,  H02M1/083 ,  H02M2001/0058 ,  H02M2007/4803 ,  H03K5/1536 ,  H05B33/0845 ,  H05B39/04 ,  H05B39/08 ,  H05B41/3924

摘要： A symmetry control circuit for a trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, the symmetry control circuit including: a bias signal generator circuit configured to monitor non-conduction periods of each half cycle of said AC power for an elapsed duration of the non-conduction periods, and generate a bias signal voltage based on the elapsed duration, whereby an amplitude of the bias signal voltage is proportional to the elapsed duration of the non-conduction periods; and a bias signal converter circuit configured to convert the bias signal voltage to a bias signal current, wherein the bias signal current is added to a reference current of a conduction period timing circuit configured to determine said conduction periods, and wherein the conduction period timing circuit is configured to alter one of the conduction periods immediately following one of the non-conduction periods based on the bias signal current when added to the reference current to compensate for a phase shift of a zero-crossing of said one of the non-conduction periods corresponding to an elapsed duration of said one of the non-conduction periods so as to restore symmetry of the non-conduction periods of each half cycle of AC power.

公开(公告)号：EP3146802A1

公开(公告)日：2017-03-29

申请号：EP15796419.8

申请日：2015-05-20

申请人： Gerard Lighting Holdings Pty Ltd

发明人： VANDERZON, James

IPC分类号： H05B37/00 ,  H02H3/00

CPC分类号： H05B33/0845 ,  H02H3/021 ,  H02H3/093 ,  H02M1/08 ,  H02M2001/0058 ,  H05B37/02 ,  H05B39/044 ,  Y02B20/146

摘要： A trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load with short-circuit protection, wherein a switching control circuit includes a zero-crossing detection circuit configured to detect zero crossings of the AC and to detect crossings of a first threshold value and a second threshold value of the rectified dimmer voltage, and wherein the zero-crossing detection circuit is further configured to initiate the switching circuit to commence one of the conduction periods when the rectified dimmer voltage crosses below the first threshold value and to initiate the switching circuit to prematurely terminate one of the conduction periods when the rectified dimmer voltage crosses above the second threshold value to provide short-circuit protection for the trailing edge phase control dimmer circuit.

摘要翻译： 一种用于向具有短路保护的负载控制交流（AC）功率的后沿相位控制调光电路，其中开关控制电路包括过零检测电路，其被配置为检测所述AC的过零点并检测交流 第一阈值和整流二极管电压的第二阈值，并且其中所述过零检测电路还被配置为启动所述开关电路以在所述整流的二极管电压跨越所述第一阈值时跨越所述导通周期之一，并且 当整流的调光器电压超过第二阈值时，启动开关电路提前终止导通周期之一，以为后沿相位控制调光电路提供短路保护。

公开(公告)号：EP3146804A1

公开(公告)日：2017-03-29

申请号：EP15795705.1

申请日：2015-05-20

申请人： Gerard Lighting Holdings Pty Ltd

发明人： VANDERZON, James

IPC分类号： H05B39/02 ,  H02M7/00 ,  G05F5/00

CPC分类号： H05B33/0845 ,  G01R19/16566 ,  G01R19/1659 ,  G01R19/175 ,  H02M1/083 ,  H02M1/44 ,  H02M5/293 ,  H02M2001/0058 ,  H02M2005/2935 ,  H03K3/2893 ,  H03K3/2897 ,  H03K5/1536 ,  H05B33/0815 ,  H05B39/02 ,  H05B39/044 ,  Y02B70/1491

摘要： A zero-crossing detection circuit for a trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, wherein the circuit includes: a switching circuit for controlling delivery of AC power to the load by conducting power to the load in an ON state and not conducting power to the load in an OFF state; a switching control circuit for controlling turn-OFF and turn-ON of the switching circuit at each cycle of the AC; and a rectifier for rectifying the AC power in the non-conduction period to generate rectified dimmer voltage to be provided to the dimmer circuit, wherein the zero-crossing detection circuit includes a current sink circuit; wherein the current sink circuit has a low impedance at low instantaneous AC voltages; a comparator circuit configured to detect zero crossings of a first threshold value of the rectified dimmer voltage.

摘要翻译： 一种用于向负载控制交流（AC）电力的后沿相位控制调光电路的过零检测电路，其中所述电路包括：开关电路，用于通过向所述负载施加电力来控制对所述负载的交流电力的输送 ON状态，并且在OFF状态下不对负载进行供电; 开关控制电路，用于在AC的每个周期控制开关电路的截止和导通; 以及整流器，用于在非导通时段中对AC电力进行整流，以产生要提供给调光电路的整流调光器电压，其中过零检测电路包括电流吸收电路; 其中所述电流吸收电路在低瞬时AC电压下具有低阻抗; 比较器电路，被配置为检测经整流的调光器电压的第一阈值的过零。

公开(公告)号：EP3146801A1

公开(公告)日：2017-03-29

申请号：EP15795533.7

申请日：2015-05-20

申请人： Gerard Lighting Holdings Pty Ltd

发明人： VANDERZON, James

IPC分类号： H05B37/00 ,  H05B41/00 ,  H02M7/00 ,  G05F5/00 ,  F21V23/00 ,  F21V99/00

CPC分类号： H02M5/2573 ,  G01R19/175 ,  H02M1/081 ,  H02M1/083 ,  H02M2001/0058 ,  H02M2007/4803 ,  H03K5/1536 ,  H05B33/0809 ,  H05B33/0845 ,  H05B39/044 ,  H05B39/08 ,  H05B41/3924

摘要： A symmetry control circuit for a trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, the symmetry control circuit including: a bias signal generator circuit configured to monitor non-conduction periods of each half cycle of said AC power for an elapsed duration of the non-conduction periods, and generate a bias signal voltage based on the elapsed duration, whereby an amplitude of the bias signal voltage is proportional to the elapsed duration of the non-conduction periods; and a bias signal converter circuit configured to convert the bias signal voltage to a bias signal current, wherein the bias signal current is added to a reference current of a conduction period timing circuit configured to determine said conduction periods, and wherein the conduction period timing circuit is configured to alter one of the conduction periods immediately following one of the non-conduction periods based on the bias signal current when added to the reference current to compensate for a phase shift of a zero-crossing of said one of the non-conduction periods corresponding to an elapsed duration of said one of the non-conduction periods so as to restore symmetry of the non-conduction periods of each half cycle of AC power.

摘要翻译： 一种用于向负载控制交流（AC）功率的后沿相位控制调光电路的对称控制电路，所述对称控制电路包括：偏置信号发生器电路，被配置为监视所述交流电源的每个半周期的非导通周期 对于非导通时段的经过的持续时间，并且基于经过的持续时间产生偏置信号电压，由此偏置信号电压的幅度与非导通周期的经过持续时间成比例; 以及偏置信号转换器电路，被配置为将所述偏置信号电压转换为偏置信号电流，其中所述偏置信号电流被添加到被配置为确定所述导通周期的导通周期定时电路的参考电流，并且其中所述导通周期定时电路 配置为当加到参考电流之后，基于偏置信号电流，在非导通时段中的一个之后立即改变导通周期之一，以补偿所述一个非导通周期的过零点的相移 对应于所述一个非导通时段的经过的持续时间，以便恢复交流电源的每个半周期的非导通周期的对称性。

公开(公告)号：EP3146800A1

公开(公告)日：2017-03-29

申请号：EP15795349.8

申请日：2015-05-20

申请人： Gerard Lighting Holdings Pty Ltd

发明人： VANDERZON, James

IPC分类号： H05B37/00

摘要： A trailing edge phase control dimmer circuit for controlling alternating current (AC) power to a load, the circuit including: a switching circuit for controlling delivery of AC power to the load by conducting power to the load in an ON state and not conducting power to the load in an OFF state; and a switching control circuit for controlling turn-OFF and turn-ON of the switching circuit at each cycle of the AC to control switching of the ON and OFF states of the switching circuit, wherein the switching control circuit controlling turn-OFF of the switching circuit includes controlling a turn-OFF transition of the switching circuit between the ON state and the OFF state of the switching circuit extending for a selected turn-OFF transition time, and wherein the switching control circuit further includes a dv/dt feedback circuit for controlling a turn-OFF transition profile indicative of a drain voltage of the switching circuit of the turn-OFF transition and the selected turn-OFF transition time by returning at least some dv/dt feedback current generated by the switching circuit back to the switching circuit, whereby the dv/dt feedback circuit is configured to control said at least some dv/dt feedback current over the turn-OFF transition so as to reduce a rate of change of at least an initial region of the turn-OFF transition profile to minimize harmonics generation by the switching circuit.

摘要翻译： 一种用于向负载控制交流（AC）电力的后沿相位控制调光电路，所述电路包括：开关电路，用于通过向处于导通状态的负载供电并且不向 负载处于OFF状态; 以及开关控制电路，用于在AC的每个周期控制开关电路的截止和导通以控制开关电路的导通和截止状态的切换，其中开关控制电路控制开关的截止 电路包括控制在所选择的关断转换时间延长的开关电路的导通状态和断开状态之间的开关电路的截止转换，并且其中开关控制电路还包括用于控制的dv / dt反馈电路 通过将由开关电路产生的至少一些dv / dt反馈电流返回到开关电路，指示关断转换的开关电路的漏极电压的截止转换曲线和所选择的截止转换时间， 由此，dv / dt反馈电路被配置为在关断转换时控制所述至少一些dv / dt反馈电流，以便降低lea的变化率 是关断转换曲线的初始区域，以最小化开关电路产生的谐波。