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1. 发明授权

US09755521B2 Interleaved switching power supply and control method for the same 有权
公开(公告)号：US09755521B2
公开(公告)日：2017-09-05
申请号：US14960726
申请日：2015-12-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Shengjun Chen
IPC分类号： H02M3/158 , H02M1/14 , H02M1/00
CPC分类号： H02M3/1584 , H02M1/14 , H02M2001/0025 , H02M2003/1586
摘要： A control circuit for an interleaved switching power supply having a plurality of parallel coupled power stage circuits, can include: a feedback circuit that receives an output voltage of the interleaved switching power supply, and generates an output voltage feedback signal; a ripple generator that receives a plurality of switching control signals, and generates an AC ripple signal having a frequency that is N times a switching frequency; an adder circuit that adds the output voltage feedback signal with the AC ripple signal, and generates a superposition signal; a comparison circuit that receives the superposition signal and a reference voltage, and generates a comparison signal; and a frequency divider circuit that divides the comparison signal into a plurality of turn on control signals configured to control turn on of a plurality of main power switches in the plurality of power stage circuits.

2. 发明授权

US10020738B2 Interleaved switching power supply and control method for the same 有权
公开(公告)号：US10020738B2
公开(公告)日：2018-07-10
申请号：US15670752
申请日：2017-08-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Shengjun Chen
IPC分类号： H02M3/158 , H02M1/14 , H02M1/00
CPC分类号： H02M3/1584 , H02M1/14 , H02M2001/0025 , H02M2003/1586
摘要： A control circuit for an interleaved switching power supply having a plurality of parallel coupled power stage circuits, can include: a feedback circuit that receives an output voltage of the interleaved switching power supply, and generates an output voltage feedback signal; a ripple generator that receives a plurality of switching control signals, and generates an AC ripple signal having a frequency that is N times a switching frequency; an adder circuit that adds the output voltage feedback signal with the AC ripple signal, and generates a superposition signal; a comparison circuit that receives the superposition signal and a reference voltage, and generates a comparison signal; and a frequency divider circuit that divides the comparison signal into a plurality of turn on control signals configured to control turn on of a plurality of main power switches in the plurality of power stage circuits.

3. 发明申请

US20170271883A1 SWITCHING CONTROL CIRCUIT AND CONTROL METHOD 审中-公开
公开(公告)号：US20170271883A1
公开(公告)日：2017-09-21
申请号：US15451563
申请日：2017-03-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Junjie Li
IPC分类号： H02J4/00
CPC分类号： H02J4/00 , H02J1/102 , H02M3/157 , H02M3/158 , H02M2001/0003 , H03K17/6874 , H03K17/693
摘要： A switching control circuit for controlling a multi-channel switching circuit having switching circuits, input terminals coupled to input voltage signals, and an output terminal for providing an output voltage signal, can include: a logic control circuit configured to receive an external operation signal and a first single pulse signal, and to generate an enable signal, a trigger signal, and feedback control signals; a reference voltage regulation circuit configured to receive the enable signal, the trigger signal, and a maximum one of the input voltage signals, and to generate a reference voltage signal; and feedback circuits corresponding to the switching circuits, where the plurality of feedback circuits are configured to receive the feedback control signals, a minimum one of two input voltage signals that are participating in the switching operation, the reference voltage signal, and the output voltage signal, and to generate switching control signals for controlling the switching circuits.

4. 发明授权

US10897139B2 Switching control circuit and control method 有权
公开(公告)号：US10897139B2
公开(公告)日：2021-01-19
申请号：US16549023
申请日：2019-08-23
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Junjie Li
IPC分类号： H02J4/00 , H02M3/158 , H02M3/157 , H03K17/687 , H03K17/693 , H02J1/10 , H02M1/00
摘要： A switching control circuit for controlling a multi-channel switching circuit having switching circuits, input terminals coupled to input voltage signals, and an output terminal for providing an output voltage signal, can include: a logic control circuit configured to receive an external operation signal and a first single pulse signal, and to generate an enable signal, a trigger signal, and feedback control signals; a reference voltage regulation circuit configured to receive the enable signal, the trigger signal, and a maximum one of the input voltage signals, and to generate a reference voltage signal; and feedback circuits corresponding to the switching circuits, where the plurality of feedback circuits are configured to receive the feedback control signals, a minimum one of two input voltage signals that are participating in the switching operation, the reference voltage signal, and the output voltage signal, and to generate switching control signals for controlling the switching circuits.

5. 发明授权

US10069320B2 Electronic cigarette with miniaturized charging and discharging integrated circuit therefor 有权
公开(公告)号：US10069320B2
公开(公告)日：2018-09-04
申请号：US14734172
申请日：2015-06-09
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Yongbin Cai , Chen Zhao
IPC分类号： H02J7/00 , A24F47/00 , H02M3/156 , H02M3/158
摘要： The present disclosure relates to an electronic cigarette and an integrated circuit therefor. The integrated circuit incorporates a bi-directional control scheme for a charging process of a rechargeable battery and a discharging process of the rechargeable battery, and includes power devices used in both the processes. Thus, the integrated circuit has less semiconductor devices and lowered manufacturer cost. The integrated circuit has a temperature detection function for providing overheat protection of the system so that it operates in a safe temperature range. The integrated circuit also has a battery current-limiting function for limiting an output current of the rechargeable battery and protecting the same. The integrated circuit further has a short-circuit protection function for limiting an output current of the integrated circuit when the output current is too large and protecting the system.

6. 发明申请

US20150357839A1 ELECTRONIC CIGARETTE AND INTEGRATED CIRCUIT THEREFOR 审中-公开
标题翻译：电子香烟及其集成电路
公开(公告)号：US20150357839A1
公开(公告)日：2015-12-10
申请号：US14734172
申请日：2015-06-09
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Yongbin Cai , Chen Zhao
IPC分类号： H02J7/00 , A24F47/00
CPC分类号： H02J7/007 , A24F47/008 , H02J7/0052 , H02J7/008 , H02J2007/0059 , H02M3/156 , H02M3/1582
摘要： The present disclosure relates to an electronic cigarette and an integrated circuit therefor. The integrated circuit incorporates a bi-directional control scheme for a charging process of a rechargeable battery and a discharging process of the rechargeable battery, and includes power devices used in both the processes. Thus, the integrated circuit has less semiconductor devices and lowered manufacturer cost. The integrated circuit has a temperature detection function for providing overheat protection of the system so that it operates in a safe temperature range. The integrated circuit also has a battery current-limiting function for limiting an output current of the rechargeable battery and protecting the same. The integrated circuit further has a short-circuit protection function for limiting an output current of the integrated circuit when the output current is too large and protecting the system.
摘要翻译：本公开涉及电子烟及其集成电路。集成电路包括用于充电电池的充电过程和可再充电电池的放电过程的双向控制方案，并且包括在两个过程中使用的功率器件。因此，集成电路具有较少的半导体器件，降低了制造商的成本。集成电路具有温度检测功能，用于提供系统的过热保护，使其在安全的温度范围内工作。集成电路还具有用于限制可充电电池的输出电流并保护其的电池限流功能。集成电路还具有短路保护功能，用于限制输出电流过大时集成电路的输出电流，并保护系统。

7. 发明授权

US10447044B2 Switching control circuit and control method 有权
公开(公告)号：US10447044B2
公开(公告)日：2019-10-15
申请号：US15451563
申请日：2017-03-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Junjie Li
IPC分类号： H02J4/00 , H02M3/158 , H02M3/157 , H03K17/687 , H03K17/693 , H02J1/10 , H02M1/00
摘要： A switching control circuit for controlling a multi-channel switching circuit having switching circuits, input terminals coupled to input voltage signals, and an output terminal for providing an output voltage signal, can include: a logic control circuit configured to receive an external operation signal and a first single pulse signal, and to generate an enable signal, a trigger signal, and feedback control signals; a reference voltage regulation circuit configured to receive the enable signal, the trigger signal, and a maximum one of the input voltage signals, and to generate a reference voltage signal; and feedback circuits corresponding to the switching circuits, where the plurality of feedback circuits are configured to receive the feedback control signals, a minimum one of two input voltage signals that are participating in the switching operation, the reference voltage signal, and the output voltage signal, and to generate switching control signals for controlling the switching circuits.

8. 发明授权

US10216211B2 Control method and control circuit for voltage switch circuit and usb power delivery 有权
公开(公告)号：US10216211B2
公开(公告)日：2019-02-26
申请号：US15644371
申请日：2017-07-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Junjie Li
IPC分类号： G05F1/59 , H02M3/158 , H02M1/088 , H02J1/00 , H02M1/00
摘要： A method of controlling a voltage switch circuit can include: controlling an output voltage of the voltage switch circuit to be switched from a first voltage input to a first switch circuit to a second voltage input to a second switch circuit to be no larger than a smaller one of the first and second voltages before the second switch circuit starts conducting; switching the output voltage to the second voltage when the second switch circuit starts conducting, where outputs of the first and second switch circuits are coupled together to provide the output voltage; and controlling the first switch circuit to turn off after the second switch circuit conducts and when the output voltage is no larger than the smaller one of the first and second voltages.

9. 发明申请

US20180019673A1 CONTROL METHOD AND CONTROL CIRCUIT FOR VOLTAGE SWITCH CIRCUIT AND USB POWER DELIVERY 审中-公开
公开(公告)号：US20180019673A1
公开(公告)日：2018-01-18
申请号：US15644371
申请日：2017-07-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Junjie Li
IPC分类号： H02M3/158 , H02M1/088
CPC分类号： G05F1/59 , H02J1/00 , H02J2001/008 , H02M1/088 , H02M3/158 , H02M3/1584 , H02M2001/0045
摘要： A method of controlling a voltage switch circuit can include: controlling an output voltage of the voltage switch circuit to be switched from a first voltage input to a first switch circuit to a second voltage input to a second switch circuit to be no larger than a smaller one of the first and second voltages before the second switch circuit starts conducting; switching the output voltage to the second voltage when the second switch circuit starts conducting, where outputs of the first and second switch circuits are coupled together to provide the output voltage; and controlling the first switch circuit to turn off after the second switch circuit conducts and when the output voltage is no larger than the smaller one of the first and second voltages.

10. 发明申请

US20170338741A1 INTERLEAVED SWITCHING POWER SUPPLY AND CONTROL METHOD FOR THE SAME 审中-公开
公开(公告)号：US20170338741A1
公开(公告)日：2017-11-23
申请号：US15670752
申请日：2017-08-07
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Yongbin Cai , Shengjun Chen
IPC分类号： H02M3/158 , H02M1/14 , H02M1/00
CPC分类号： H02M3/1584 , H02M1/14 , H02M2001/0025 , H02M2003/1586
摘要： A control circuit for an interleaved switching power supply having a plurality of parallel coupled power stage circuits, can include: a feedback circuit that receives an output voltage of the interleaved switching power supply, and generates an output voltage feedback signal; a ripple generator that receives a plurality of switching control signals, and generates an AC ripple signal having a frequency that is N times a switching frequency; an adder circuit that adds the output voltage feedback signal with the AC ripple signal, and generates a superposition signal; a comparison circuit that receives the superposition signal and a reference voltage, and generates a comparison signal; and a frequency divider circuit that divides the comparison signal into a plurality of turn on control signals configured to control turn on of a plurality of main power switches in the plurality of power stage circuits.

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