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1. 发明授权

US09362817B2 Power factor correction 有权
标题翻译：功率因数校正
公开(公告)号：US09362817B2
公开(公告)日：2016-06-07
申请号：US14114217
申请日：2012-04-27
申请人： Jamie Kelly , Deepak Makwana , Kevin McDermott , Paul Dalby , Wayne Bell
发明人： Jamie Kelly , Deepak Makwana , Kevin McDermott , Paul Dalby , Wayne Bell
IPC分类号： H02M1/12 , H02M1/42 , H02M1/00
CPC分类号： H02M1/4225 , H02M2001/0003 , Y02B70/126
摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus_target. The method includes obtaining an indication of the inductor L1 reaching a discharged state in response to the switch being in an off state. The controller 24 monitors at least one of the switch on period Ton and the switch off period Toff to identify when the input voltage Vin is an alternating voltage AC input, and when it is likely to be a non-alternating voltage DC input. When a non alternating voltage is detected, steps may be taken to reduce interference.
摘要翻译：功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。开关Q3由控制器24控制，控制器24改变电感器充电的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus_target。该方法包括响应于该开关处于断开状态而获得达到放电状态的电感器L1的指示。控制器24监视开关导通周期Ton和关断周期Toff中的至少一个，以识别输入电压Vin何时为交流电压AC输入，何时可能是非交流电压DC输入。当检测到非交流电压时，可采取步骤来减少干扰。

2. 发明申请

US20140049993A1 POWER FACTOR CORRECTION 有权
标题翻译：功率因数校正
公开(公告)号：US20140049993A1
公开(公告)日：2014-02-20
申请号：US14114217
申请日：2012-04-27
申请人： Jamie Kelly , Deepak Makwana , Kevin McDermott , Paul Dalby , Wayne Bell
发明人： Jamie Kelly , Deepak Makwana , Kevin McDermott , Paul Dalby , Wayne Bell
IPC分类号： H02M1/42
CPC分类号： H02M1/4225 , H02M2001/0003 , Y02B70/126
摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The method includes obtaining an indication of the inductor L1 reaching a discharged state in response to the switch being in an off state. The controller 24 monitors at least one of the switch on period Ton and the switch off period Toff to identify when the input voltage Vin is an alternating voltage AC input, and when it is likely to be a non-alternating voltage DC input. When a non alternating voltage is detected, steps may be taken to reduce interference.
摘要翻译：功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。开关Q3由控制器24控制，控制器24改变电感器充电的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。该方法包括响应于该开关处于断开状态而获得达到放电状态的电感器L1的指示。控制器24监视开关导通周期Ton和关断周期Toff中的至少一个，以识别输入电压Vin何时为交流电压AC输入，何时可能是非交流电压DC输入。当检测到非交流电压时，可采取步骤来减少干扰。

3. 发明授权

US09263938B2 Power factor correction 有权
标题翻译：功率因数校正
公开(公告)号：US09263938B2
公开(公告)日：2016-02-16
申请号：US14114202
申请日：2012-04-27
申请人： Jamie Kelly , Deepak Makwana
发明人： Jamie Kelly , Deepak Makwana
IPC分类号： H02M1/42 , H05B37/02 , H02M1/00
CPC分类号： H02M1/42 , H02M1/4225 , H02M2001/0022 , H05B37/02 , Y02B70/126
摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The method of operation includes: operating a controller 24 to obtain an indication of the voltage across the switch Q3, monitoring the indication of the voltage across the switch Q3 to determine when the inductor L1 reaches a discharged state in response to the switch being in an off state, and the switch Q3 being controlled by the controller 24 to vary the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The controller 24 monitors at least one of the indication of the voltage across the switch Q3 and the ratio of the switch on period Ton to the switch off period Toff for detecting that the input voltage Vin has a low value.
摘要翻译：功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。操作方法包括：操作控制器24以获得开关Q3两端的电压的指示，监测开关Q3两端的电压的指示，以确定电感器L1何时响应于开关处于放电状态而达到放电状态关闭状态，并且开关Q3由控制器24控制，以改变电感器充电期间的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。控制器24监视开关Q3两端的电压的指示和开关导通周期Ton与断开时段Toff之间的比值中的至少一个，用于检测输入电压Vin具有低值。

4. 发明申请

US20140049181A1 POWER FACTOR CORRECTION 有权
标题翻译：功率因数校正
公开(公告)号：US20140049181A1
公开(公告)日：2014-02-20
申请号：US14114202
申请日：2012-04-27
申请人： Jamie Kelly , Deepak Makwana
发明人： Jamie Kelly , Deepak Makwana
IPC分类号： H02M1/42 , H05B37/02
CPC分类号： H02M1/42 , H02M1/4225 , H02M2001/0022 , H05B37/02 , Y02B70/126
摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The method of operation includes: operating a controller 24 to obtain an indication of the voltage across the switch Q3, monitoring the indication of the voltage across the switch Q3 to determine when the inductor L1 reaches a discharged state in response to the switch being in an off state, and the switch Q3 being controlled by the controller 24 to vary the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The controller 24 monitors at least one of the indication of the voltage across the switch Q3 and the ratio of the switch on period Ton to the switch off period Toff for detecting that the input voltage Vin has a low value.
摘要翻译：功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。操作方法包括：操作控制器24以获得开关Q3两端的电压的指示，监测开关Q3两端的电压的指示，以确定电感器L1何时响应于开关处于放电状态而达到放电状态关闭状态，并且开关Q3由控制器24控制，以改变电感器充电期间的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。控制器24监视开关Q3两端的电压的指示和开关导通周期Ton与断开时段Toff之间的比值中的至少一个，用于检测输入电压Vin具有低值。

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