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21. 发明授权

US10333349B2 Power transmitter, resonance-type contactless power supply and control method therefor 有权
公开(公告)号：US10333349B2
公开(公告)日：2019-06-25
申请号：US15080809
申请日：2016-03-25
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Wang Zhang , Feng Yu
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/12 , H02J50/80
摘要： The present disclosure relates to a power transmitter, a resonance-type contactless power supply and a control method. The inverter circuit is controlled to provide a high-frequency AC current with a voltage strength parameter so that a current strength parameter (e.g. a peak value or an effective value of the current) of the AC current flowing through a transmitting coil and that through a receiving coil have a predetermined relationship. Thus, an equivalent load impedance is adjusted so that the system efficiency is optimized.

22. 发明授权

US10110131B2 Control circuit for interleaved switching power supply 有权
公开(公告)号：US10110131B2
公开(公告)日：2018-10-23
申请号：US14525876
申请日：2014-10-28
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02M3/158
摘要： In one embodiment, a control circuit configured for an interleaved switching power supply, can include: (i) a feedback compensation signal generation circuit configured to sample an output voltage of the interleaved switching power supply, and to generate a feedback compensation signal; (ii) a first switch control circuit configured to compare a voltage signal indicative of an inductor current in the first voltage regulation circuit against the feedback compensation signal, and to control a first main power switch in the first voltage regulation circuit; and (iii) a second switch control circuit configured to turn on a second main power switch in the second voltage regulation circuit after half of a switching cycle after the first main power switch is turned on, and to regulate an on time of the second main power switch.

23. 发明申请

US20180254668A1 RESONANT CONTACTLESS POWER SUPPLY EQUIPMENT, ELECTRICAL TRANSMITTER AND CONTACTLESS POWER SUPPLY METHOD 审中-公开
公开(公告)号：US20180254668A1
公开(公告)日：2018-09-06
申请号：US15966204
申请日：2018-04-30
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 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.

24. 发明授权

US10027174B2 Resonance-type contactless power supply and power receiver 有权
公开(公告)号：US10027174B2
公开(公告)日：2018-07-17
申请号：US14752392
申请日：2015-06-26
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Wang Zhang , Feng Yu
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/12 , H02J5/00 , H01F38/14 , H02J7/02
摘要： The present disclosure relates to a resonance-type contactless power supply and a power receiver. A high-frequency power supply provides a high-frequency AC current with a predetermined frequency. A transmitter-side resonant circuit includes a transmitting coil for receiving the high-frequency AC current from the high-frequency power supply. A receiver-side resonant circuit includes a receiving coil which is separated from but coupled to the transmitting coil in contactless manner. The receiver-side resonant circuit receives electric energy from the transmitting coil. A receiver-side parallel capacitor is connected in parallel at an output terminal of the receiver-side resonant circuit. The receiver-side parallel capacitor has a capacitance value which is in inversely proportional to the product of a square of an angular frequency of the predetermined frequency and a predetermined mutual inductance. The predetermined mutual inductance is determined in a case that the transmitting coil and the receiving coil are coupled to each other in a predetermined coupling coefficient. The resonance-type contactless power supply provides a stable output voltage when operating in the predetermined frequency.

25. 发明授权

US09577533B2 Control circuit for an interleaved switching power supply 有权
标题翻译：用于交错开关电源的控制电路
公开(公告)号：US09577533B2
公开(公告)日：2017-02-21
申请号：US14488405
申请日：2014-09-17
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02M3/158 , 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.
摘要翻译：在一个实施例中，配置用于具有第一和第二电压转换电路的交错开关电源的控制电路可以包括：产生反馈补偿信号的反馈补偿信号产生电路; 第一电源开关控制电路，当表示第一电压转换电路的电感电流的第一电压信号小于反馈补偿信号时，激活第一接通信号，第一电压转换电路的第一电源开关基于接通在第一个信号上，并在预定时间后关闭; 以及第二电源开关控制电路，其在从所述第一接通信号的上升沿开始半个开关周期之后激活第二导通信号，以及第二电源开关控制信号，以基于所述第二电压转换电路的第二电源开关接通，在第二个信号。

26. 发明申请

US20160285316A1 POWER TRANSMITTER, RESONANCE-TYPE CONTACTLESS POWER SUPPLY AND CONTROL METHOD THEREFOR 审中-公开
标题翻译：电力发电机，谐振型无接触电源及其控制方法
公开(公告)号：US20160285316A1
公开(公告)日：2016-09-29
申请号：US15080879
申请日：2016-03-25
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Wang Zhang , Feng Yu
IPC分类号： H02J50/12 , H02J50/80
CPC分类号： H02J50/12 , H02J50/80
摘要： The present disclosure relates to a power transmitter, a resonance-type contactless power supply and a control method. The resonance-type contactless power supply adjusts a phase difference of an inverter control signal in a current cycle in a manner the same as that in a previous cycle in a case that a power parameter in the current cycle and that in the previous cycle satisfy a predetermined relationship, and adjusts the phase difference of the inverter control signal in the current cycle in a manner opposite to that in the previous cycle in a case that the power parameter in the current cycle and that in the previous cycle don't satisfy the predetermined relationship. The power parameter represents system efficiency. Thus, a suitable input current or voltage of the transmitter-side resonant circuit is determined by scanning actually, so that the system can operate at optimal efficiency.
摘要翻译：本公开涉及一种功率发射器，谐振型非接触电源和控制方法。在本周期的功率参数和前一周期中的功率参数满足下述情况下，谐振型非接触电源以与前一周期相同的方式在当前周期中调整逆变器控制信号的相位差在当前周期中的功率参数和前一周期中的功率参数不满足预定关系的情况下，以与前一周期相反的方式调整当前周期中的逆变器控制信号的相位差。关系。功率参数表示系统效率。因此，通过实际扫描来确定发射机侧谐振电路的合适的输入电流或电压，使得系统可以以最佳效率工作。

27. 发明授权

US09018847B2 Thyristor dimming circuit with lossless discharging circuit and method thereof 有权
标题翻译：具有无损放电电路的晶闸管调光电路及其方法
公开(公告)号：US09018847B2
公开(公告)日：2015-04-28
申请号：US14044422
申请日：2013-10-02
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd
发明人： Feng Yu , Xiaodong Huang
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0845 , Y02B20/346 , Y02B20/348
摘要： Thyristor dimming circuits and methods are disclosed herein. In one embodiment, a thyristor dimming circuit can include: (i) a thyristor and a rectifier bridge configured to receive a sinusoidal AC voltage, and to generate a phase-loss input voltage; (ii) a power stage circuit configured to have the phase-loss input voltage applied thereto, the power stage circuit having a main switch and being configured to drive a lamp load through electrical conversion; and (iii) a discharging circuit configured, during a first predetermined time interval, to control the main switch to operate with a fixed duty cycle at a fixed frequency, where the first predetermined time interval begins prior to an absolute value of the sinusoidal AC voltage being reduced to zero, the first predetermined time interval ending when the phase-loss input voltage is again applied to the power stage circuit.
摘要翻译：本文公开了晶闸管调光电路和方法。在一个实施例中，晶闸管调光电路可以包括：（i）晶体管和整流桥，其被配置为接收正弦交流电压，并产生相位损耗输入电压; （ii）功率级电路，其被配置为具有施加到其上的相位损耗输入电压，所述功率级电路具有主开关，并且被配置为通过电转换来驱动灯负载; 以及（iii）放电电路，其在第一预定时间间隔期间配置以控制所述主开关以固定频率的固定工作周期工作，其中所述第一预定时间间隔开始于所述正弦AC电压的绝对值之前减小为零时，当将相丢失输入电压再次施加到功率级电路时，第一预定时间间隔结束。

28. 发明申请

US20150091455A1 LED DRIVER 有权
标题翻译： LED驱动器
公开(公告)号：US20150091455A1
公开(公告)日：2015-04-02
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： 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。

29. 发明申请

US20150077072A1 CONTROL CIRCUIT OF INTERLEAVED SWITCHING POWER SUPPLY AND CONTROL METHOD THEREOF 有权
标题翻译：交互式开关电源的控制电路及其控制方法
公开(公告)号：US20150077072A1
公开(公告)日：2015-03-19
申请号：US14485977
申请日：2014-09-15
申请人： Silergy Semiconductor Technology (Hangzhou) LTD
发明人： Feng Yu , Chen Zhao
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/1584 , H02M2001/0009 , H02M2003/1586
摘要： In one embodiment, a control circuit configured for an interleaved switching power supply, can include: (i) a feedback compensation signal generation circuit configured to sample an output voltage of the interleaved switching power supply, and to generate a feedback compensation signal; (ii) a first switch control circuit configured to compare a first branch voltage signal that represents an inductor current of a first voltage regulation circuit against the feedback compensation signal, where when the first branch voltage signal is consistent with the feedback compensation signal, a first switch on signal is generated to control a first main power switch of the first voltage regulation circuit to be on for a predetermined time, and then off; and (iii) a second switch control circuit configured to compare a second branch voltage signal that represents an inductor current of a second voltage regulation circuit against the feedback compensation signal.
摘要翻译：在一个实施例中，配置用于交错开关电源的控制电路可以包括：（i）反馈补偿信号产生电路，被配置为对交错的开关电源的输出电压进行采样，并产生反馈补偿信号; （ii）第一开关控制电路，被配置为将表示第一调压电路的电感电流的第一分支电压信号与反馈补偿信号进行比较，其中当第一分支电压信号与反馈补偿信号一致时，产生开启信号以控制第一电压调节电路的第一主电源开关接通预定时间，然后断开; 以及（iii）第二开关控制电路，被配置为将表示第二调压电路的电感器电流的第二支路电压信号与反馈补偿信号进行比较。

30. 发明申请

US20140354166A1 DIMMING CIRCUIT AND METHOD FOR LEDS 有权
标题翻译： LED的调光电路和方法
公开(公告)号：US20140354166A1
公开(公告)日：2014-12-04
申请号：US14290016
申请日：2014-05-29
申请人： Silergy Semiconductor Technology (Hangzhou) Ltd.
发明人： Feng Yu , Hongfeng An
IPC分类号： H05B33/08
CPC分类号： H05B33/0818 , H05B33/0845 , H05B33/0887 , Y02B20/348 , Y02B20/46
摘要： The present disclosure relates to dimming circuit and method for LEDs. The dimming circuit obtains a DC voltage from an external AC power supply by using a TRIAC, an electronic transformer, and a rectifier bridge sequentially. The dimming circuit comprises a first power stage circuit, a second power stage, a first control circuit, and a second control circuit. The first power stage circuit has an input terminal configured to receive the DC voltage. The second power stage has an input terminal coupled to an output terminal of the first power stage and an output terminal coupled to an LED load. The first control circuit is configured to generate a first control signal in accordance with a first output voltage generated at the output terminal of the first power stage circuit, a first reference voltage and an upper threshold voltage to maintain an average value of the first output voltage to be consistent with the first reference voltage. The second control circuit is configured to generate a dimming signal in accordance with a first current and the first output voltage to control an operation of the second power stage circuit to maintain an output current of the second power stage circuit to be consistent with an expected driving current represented by the dimming signal. The first current is no less than a holding current of the electronic transformer. An input current of the first power stage circuit is maintained to be consistent with the first current by the first control signal when the first output voltage is in a continuously increasing state and is lower than the upper threshold voltage. The first output voltage decreases continuously and the input current is maintained to be consistent with a second current after the first output voltage reaches the upper threshold voltage.
摘要翻译：本公开涉及LED的调光电路和方法。调光电路通过使用TRIAC，电子变压器和整流桥顺序从外部交流电源获得直流电压。调光电路包括第一功率级电路，第二功率级，第一控制电路和第二控制电路。第一功率级电路具有被配置为接收直流电压的输入端子。第二功率级具有耦合到第一功率级的输出端的输入端和耦合到LED负载的输出端。第一控制电路被配置为根据在第一功率级电路的输出端产生的第一输出电压，第一参考电压和上阈值电压产生第一控制信号，以保持第一输出电压的平均值与第一个参考电压一致。第二控制电路被配置为根据第一电流和第一输出电压产生调光信号，以控制第二功率级电路的操作，以保持第二功率级电路的输出电流与期望的驱动一致由调光信号表示的电流。第一电流不小于电子变压器的保持电流。当第一输出电压处于连续增加状态并且低于上阈值电压时，第一功率级电路的输入电流被保持为与第一电流一致。第一输出电压连续降低，并且在第一输出电压达到上阈值电压之后，输入电流保持与第二电流一致。

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