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1. 发明授权

US10601248B2 Resonance-type contactless power supply, integrated circuit and constant voltage controlling method therefor 有权
公开(公告)号：US10601248B2
公开(公告)日：2020-03-24
申请号：US14798680
申请日：2015-07-14
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Wang Zhang , Feng Yu
IPC分类号： H02J50/12 , H01F38/14 , H02M3/337 , H02M7/48
摘要： The present disclosure relates to a resonance-type contactless power supply, an integrated circuit and a constant voltage control method. The resonance-type contactless power supply includes an inverter, a transmitter-side resonant circuit, a receiver-side resonant circuit, a rectifier circuit, and an output capacitance. In this resonance-type contactless power supply, the inverter receives electric energy, which is transferred to the rectifier circuit in a first state and is not transferred to the rectifier circuit in a second state. By switching between the first state and the second state, the resonance-type contactless power supply is controlled to provide a relatively constant voltage, and can be electrically coupled directly to a constant-voltage-type load.

2. 发明授权

US10103578B2 Power supply device, integrated circuit, energy transmitter and impedance matching method 有权
公开(公告)号：US10103578B2
公开(公告)日：2018-10-16
申请号：US14737817
申请日：2015-06-12
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02J50/12 , H02J17/00
摘要： A resonance contactless power supply device can include: (i) a converter configured to convert an input power signal to an adjustable DC voltage; (ii) an inverter configured to receive the adjustable DC voltage, and to generate an AC voltage with a leakage inductance resonance frequency; (iii) a first resonance circuit having a transmitting coil, and being configured to receive the AC voltage from the inverter; (iv) a second resonance circuit comprising a receiving coil that is contactlessly coupled to the transmitting coil, where the second resonance circuit is configured to receive electric energy from the transmitting coil; and (v) a control circuit configured to control the adjustable DC voltage according to a phase difference between the AC voltage and an AC current output by the inverter, such that the phase difference is maintained as a predetermined angle.

3. 发明授权

US09979234B2 Resonant contactless power supply equipment, electrical transmitter and contactless power supply method 有权
公开(公告)号：US09979234B2
公开(公告)日：2018-05-22
申请号：US14737719
申请日：2015-06-12
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Wang Zhang
IPC分类号： H02J50/12 , H02M3/335
CPC分类号： H02J50/12 , H02M3/33507 , Y02B70/1433
摘要： A resonant contactless electric energy transmitter configured to contactlessly supply electric energy to an electric energy receiver, can include: (i) a high frequency power supply configured to generate a high frequency AC power with a frequency that is the same as a leakage inductance resonant frequency, where the leakage inductance resonant frequency is obtained by detection of an output current of the high frequency power supply that corresponds to the high frequency AC power of a sequence of different frequencies during a frequency sweeping time period; and (ii) a transmitting resonant circuit comprising a transmitting coil, and being configured to receive the high frequency AC power from the high frequency power supply.

4. 发明授权

US09941796B2 Control circuit for an interleaved switching power supply 有权
公开(公告)号：US09941796B2
公开(公告)日：2018-04-10
申请号：US15401694
申请日：2017-01-09
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02M3/158 , H02M1/08 , H02M1/14 , H02M1/00
CPC分类号： H02M3/1584 , H02M1/08 , H02M1/14 , H02M2001/0025 , H02M2003/1586
摘要： In one embodiment, a control circuit configured for an interleaved switching power supply having first and second voltage conversion circuits, can include: a feedback compensation signal generation circuit that generates a feedback compensation signal; a first power switch control circuit that activates a first on signal when a first voltage signal that represents an inductor current of the first voltage conversion circuit is less than the feedback compensation signal, a first power switch of the first voltage conversion circuit being turned on based on the first on signal, and turned off after a predetermined time; and a second power switch control circuit that activates a second on signal after half of a switching period from a rising edge of the first on signal, and a second power switch control signal to turn on a second power switch of the second voltage conversion circuit based on the second on signal.

5. 发明授权

US09645200B2 Battery power measuring method, measuring device and battery-powered equipment 有权
公开(公告)号：US09645200B2
公开(公告)日：2017-05-09
申请号：US14082984
申请日：2013-11-18
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Xiaodong Huang , Hejinsheng Cao
IPC分类号： G01R31/36
CPC分类号： G01R31/3648 , G01R31/362
摘要： Disclosed herein are various battery power measurement devices, methods, and related apparatuses. In one embodiment, a method of measuring a battery power can include: (i) detecting a voltage and a temperature at an output terminal of a battery; (ii) obtaining a first correction coefficient based on a battery open-circuit voltage at a previous sample time; (iii) obtaining a second correction coefficient based on the battery temperature; (iv) calculating a real-time battery open-circuit voltage by using the voltage at the output terminal of the battery, the first and second correction coefficients, the battery open-circuit voltage at the previous sample time, and a time interval between the previous sample time and a present sample time; and (v) converting the real-time battery open-circuit voltage into a battery power measurement for display.

6. 发明申请

US20170117807A1 CONTROL CIRCUIT FOR AN INTERLEAVED SWITCHING POWER SUPPLY 审中-公开
公开(公告)号：US20170117807A1
公开(公告)日：2017-04-27
申请号：US15401694
申请日：2017-01-09
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02M3/158 , H02M1/14 , H02M1/08
CPC分类号： H02M3/1584 , H02M1/08 , H02M1/14 , H02M2001/0025 , H02M2003/1586
摘要： In one embodiment, a control circuit configured for an interleaved switching power supply having first and second voltage conversion circuits, can include: a feedback compensation signal generation circuit that generates a feedback compensation signal; a first power switch control circuit that activates a first on signal when a first voltage signal that represents an inductor current of the first voltage conversion circuit is less than the feedback compensation signal, a first power switch of the first voltage conversion circuit being turned on based on the first on signal, and turned off after a predetermined time; and a second power switch control circuit that activates a second on signal after half of a switching period from a rising edge of the first on signal, and a second power switch control signal to turn on a second power switch of the second voltage conversion circuit based on the second on signal.

7. 发明授权

US09420652B2 LED driver 有权
标题翻译： LED驱动器
公开(公告)号：US09420652B2
公开(公告)日：2016-08-16
申请号：US14496294
申请日：2014-09-25
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Feng Yu , Chen Zhao
IPC分类号： G05F1/00 , H05B33/08
CPC分类号： H05B33/0824
摘要： A LED driver is disclosed herein. In one embodiment, the LED driver comprises a rectifier circuit, a driving current generating circuit, a bus voltage detection circuit, a LED configuration control circuit, and a LED array. The LED driver according to the present disclosure reconfigures the prior LED array, balances usage of each LED by switching operation of each LED, which results in long lifetime of the LED driver while reducing power dissipation or increasing a PF value.
摘要翻译：本文公开了一种LED驱动器。在一个实施例中，LED驱动器包括整流器电路，驱动电流产生电路，总线电压检测电路，LED配置控制电路和LED阵列。根据本公开的LED驱动器重新配置现有的LED阵列，通过切换每个LED的操作来平衡每个LED的使用，这导致LED驱动器的长寿命，同时减少功率耗散或增加PF值。

8. 发明授权

US09271366B2 Dimmable LED driver and driving method 有权
公开(公告)号：US09271366B2
公开(公告)日：2016-02-23
申请号：US14843860
申请日：2015-09-02
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Xiaodong Huang
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0851 , H05B33/0815 , H05B33/0845 , Y02B20/347 , Y02B20/348
摘要： Disclosed are dimmable LED driver circuits and methods. A dimmable LED driver can include: an SCR, an electronic transformer, and a rectifier bridge to convert an AC voltage to a DC voltage signal; a power stage circuit that receives the DC voltage signal, and outputs a constant current to drive an LED load, where the power stage circuit includes first and second power stage circuits, the first power stage circuit receiving the DC voltage signal, and generating a first output voltage to the second power stage; and an input current control circuit that receives an input current of the first power stage circuit and the first output voltage, and generates a first control signal to control the input current as a square wave signal during an on time of the SCR, and the input current is substantially zero during an off time of the SCR.

9. 发明申请

US20150364927A1 RESONANT CONTACTLESS POWER SUPPLY EQUIPMENT, ELECTRICAL TRANSMITTER AND CONTACTLESS POWER SUPPLY METHOD 有权
标题翻译：谐振电源设备，电气发电机和无连接电源方式
公开(公告)号：US20150364927A1
公开(公告)日：2015-12-17
申请号：US14737719
申请日：2015-06-12
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Wang Zhang
IPC分类号： H02J5/00
CPC分类号： H02J50/12 , H02M3/33507 , Y02B70/1433
摘要： A resonant contactless electric energy transmitter configured to contactlessly supply electric energy to an electric energy receiver, can include: (i) a high frequency power supply configured to generate a high frequency AC power with a frequency that is the same as a leakage inductance resonant frequency, where the leakage resonant frequency is obtained by detection of an output current of the high frequency power supply that corresponds to the high frequency AC power of a sequence of different frequencies during a frequency sweeping time period; and (ii) a transmitting resonant circuit comprising a transmitting coil, and being configured to receive the high frequency AC power from the high frequency power supply.
摘要翻译：一种被配置为向电能接收器非接触地供应电能的谐振非接触电能发射器可以包括：（i）被配置为产生具有与漏感谐振频率相同的频率的高频AC电力的高频电源其中，在频率扫描期间，通过检测与不同频率的序列的高频AC电力相对应的高频电源的输出电流来获得泄漏谐振频率; 和（ii）包括发射线圈的发射谐振电路，并且被配置为从高频电源接收高频AC电力。

10. 发明授权

US09161407B2 Dimmable LED driver and driving method 有权
标题翻译：可调光LED驱动器及驱动方式
公开(公告)号：US09161407B2
公开(公告)日：2015-10-13
申请号：US13916182
申请日：2013-06-12
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Xiaodong Huang
IPC分类号： H05B37/00 , H05B33/08
CPC分类号： H05B33/0851 , H05B33/0815 , H05B33/0845 , Y02B20/347 , Y02B20/348
摘要： Disclosed are dimmable LED driver circuits and methods. A dimmable LED driver can include: an SCR, an electronic transformer, and a rectifier bridge to convert an AC voltage to a DC voltage signal; a power stage circuit that receives the DC voltage signal, and outputs a constant current to drive an LED load, where the power stage circuit includes first and second power stage circuits, the first power stage circuit receiving the DC voltage signal, and generating a first output voltage to the second power stage; and an input current control circuit that receives an input current of the first power stage circuit and the first output voltage, and generates a first control signal to control the input current as a square wave signal during an on time of the SCR, and the input current is substantially zero during an off time of the SCR.
摘要翻译：公开了可调光LED驱动电路和方法。可调光LED驱动器可以包括：SCR，电子变压器和将AC电压转换成DC电压信号的整流器桥; 功率级电路，其接收直流电压信号，并输出恒定电流来驱动LED负载，其中功率级电路包括第一和第二功率级电路，第一功率级电路接收直流电压信号，并产生第一输出电压到第二功率级; 以及输入电流控制电路，其接收第一功率级电路的输入电流和第一输出电压，并且在SCR的导通时间期间产生用于将输入电流控制为方波信号的第一控制信号，并且输入电流在SCR的关闭时间内基本为零。

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