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1. 发明申请

US20110175587A1 SWITCHING CONTROL CIRCUIT AND SWITCHING POWER-SUPPLY APPARATUS 有权
标题翻译：切换控制电路和切换电源设备
公开(公告)号：US20110175587A1
公开(公告)日：2011-07-21
申请号：US13006527
申请日：2011-01-14
申请人： Tatsuya HOSOTANI
发明人： Tatsuya HOSOTANI
IPC分类号： G05F1/46
CPC分类号： H02M3/33515 , H02M3/3376
摘要： A switching power-supply apparatus and a switching power supply circuit in which a feedback signal is input from a feedback circuit to a feedback terminal of a switching control IC includes a capacitor and a Zener diode connected between the feedback terminal and a ground terminal. The Zener diode is a selectively connected external circuit. A voltage of the feedback terminal during an overcurrent operation changes depending on whether or not the external circuit is present. A return/latch determination circuit detects the voltage of the feedback terminal to switch between an automatic return system and a latch system in an overcurrent operation state.
摘要翻译：反馈信号从反馈电路输入到开关控制IC的反馈端的开关电源装置和开关电源电路包括连接在反馈端子和接地端子之间的电容器和齐纳二极管。齐纳二极管是选择性连接的外部电路。在过电流操作期间，反馈端子的电压根据外部电路是否存在而改变。返回/锁定确定电路检测反馈端子在过电流操作状态下在自动返回系统和闩锁系统之间切换的电压。

2. 发明授权

US07778048B2 Switching power supply apparatus 有权
标题翻译：开关电源装置
公开(公告)号：US07778048B2
公开(公告)日：2010-08-17
申请号：US11856281
申请日：2007-09-17
申请人： Tatsuya Hosotani
发明人： Tatsuya Hosotani
IPC分类号： H02M3/335
CPC分类号： H02M3/33569
摘要： In a switching power supply apparatus, an inductor, a transformer, a first switching circuit, a second switching circuit, and a capacitor are connected to each other so that a first switching element and a second switching element can be alternately turned on and off, an output can be obtained from a secondary winding of the transformer, and an output voltage can be controlled by controlling the ON period of the first switching element. The secondary winding of the transformer is connected to a first rectifying and smoothing circuit. A first control circuit is configured to operate using a DC voltage supplied from a second rectifying and smoothing circuit. After the second switching element has been turned on, the second switching element is forcefully turned off at a predetermined time set by a turn-off circuit included in a second control circuit that operates using an AC voltage.
摘要翻译：在开关电源装置中，电感器，变压器，第一开关电路，第二开关电路和电容器彼此连接，使得第一开关元件和第二开关元件可以交替地导通和截止，可以从变压器的次级绕组获得输出，并且可以通过控制第一开关元件的接通时段来控制输出电压。变压器的次级绕组连接到第一整流和平滑电路。第一控制电路被配置为使用从第二整流和平滑电路提供的DC电压进行操作。在第二开关元件接通之后，第二开关元件在由使用AC电压工作的第二控制电路中包括的关断电路设置的预定时间被强制关断。

3. 发明申请

US20100097829A1 POWER FACTOR CORRECTION CONVERTER 有权
标题翻译：功率因数校正转换器
公开(公告)号：US20100097829A1
公开(公告)日：2010-04-22
申请号：US12652103
申请日：2010-01-05
申请人： Yoshiyuki UNO , Tomokuni TOKUGAWA , Tatsuya HOSOTANI
发明人： Yoshiyuki UNO , Tomokuni TOKUGAWA , Tatsuya HOSOTANI
IPC分类号： H02M7/217
CPC分类号： H02M1/4225 , H02M1/44 , H02M3/157 , Y02B70/126
摘要： A power factor correction converter includes a diode bridge arranged to perform full-wave rectification on an AC input power supply, a switching element arranged to perform switching on an output voltage thereof, an inductor arranged to pass a current interrupted by the switching element and to accumulate and emit excitation energy, a diode, and a smoothing capacitor defining a step-up chopper circuit. A digital signal processing circuit detects a phase of an input voltage, and a switching frequency of the switching element is modulated in accordance with the phase. Accordingly, the switching frequency can be appropriately modulated without depending on an input voltage, so that a wide range of input voltages can be accepted while suppressing EMI noise with a peak generated in the switching frequency and higher-order frequency components thereof.
摘要翻译：功率因数校正转换器包括：二极管电桥，被配置为在AC输入电源上执行全波整流;开关元件，被布置成对其输出电压进行开关;电感器，被布置成使由开关元件中断的电流通过，累积并发射激发能量，二极管和限定升压斩波电路的平滑电容器。数字信号处理电路检测输入电压的相位，并根据该相位调制开关元件的开关频率。因此，可以适当地调制开关频率而不依赖于输入电压，从而可以在以开关频率及其高阶频率分量产生的峰值抑制EMI噪声的同时接受宽范围的输入电压。

4. 发明申请

US20090316444A1 SWITCHING POWER SUPPLY DEVICE 有权
标题翻译：切换电源设备
公开(公告)号：US20090316444A1
公开(公告)日：2009-12-24
申请号：US12551584
申请日：2009-09-01
申请人： Naoki Yamaguchi , Tatsuya Hosotani , Takuji Yokawa
发明人： Naoki Yamaguchi , Tatsuya Hosotani , Takuji Yokawa
IPC分类号： H02M3/335
CPC分类号： H02M3/3353
摘要： In a switching power supply device, a first switch element, which defines a main switch element of a DC-DC converter, and a third switch element, which defines a switch element of a power-factor correcting circuit, are controlled such that turn-on timings are synchronized while on-period control is independently performed to thereby prevent an increase in switching frequency and prevent noise by eliminating intermittent oscillation. Thus, it is possible to prevent intermittent oscillation control due to an increase in switching frequency of the first switch element under a light load state or a no load state. This eliminates problems of the frequency of intermittent oscillation that falls within an audible frequency range causing noise and increasing ripple voltage.
摘要翻译：在开关电源装置中，限定了DC-DC转换器的主开关元件的第一开关元件和限定功率因数校正电路的开关元件的第三开关元件被控制，在同时进行定时，同时独立执行周期性控制，从而防止开关频率的增加并且通过消除间歇振荡来防止噪声。因此，可以防止在轻负载状态或空载状态下由于第一开关元件的开关频率的增加而产生的间歇振荡控制。这消除了在可听到的频率范围内产生噪声和增加纹波电压的间歇振荡频率的问题。

5. 发明授权

US06639811B2 Switching power supply unit 有权
标题翻译：开关电源单元
公开(公告)号：US06639811B2
公开(公告)日：2003-10-28
申请号：US10232901
申请日：2002-09-03
申请人： Tatsuya Hosotani , Hiroshi Takemura
发明人： Tatsuya Hosotani , Hiroshi Takemura
IPC分类号： H02M3338
CPC分类号： H02M3/3385
摘要： A switching power supply unit includes first and second switching elements which are alternately turned on/off so as to perform self-excited oscillation. An inductor and a capacitor resonate during an OFF-period of the first switching element. After the second switching element is turned on, a resonance current applied to a series circuit including the second switching element and the indictor is interrupted before energy is completely emitted from a secondary winding. Accordingly, a voltage is generated at the inductor and a voltage at a transformer is reversed. The switching power supply unit also includes an ON-time control circuit in which a time constant is set so as to turn off the second switching element accordingly.
摘要翻译：开关电源单元包括交替地导通/截止以便进行自激振荡的第一和第二开关元件。电感器和电容器在第一开关元件的截止周期期间谐振。在第二开关元件接通之后，施加到包括第二开关元件和指示器的串联电路的谐振电流在能量从次级绕组完全发射之前被中断。因此，在电感器处产生电压，并且变压器处的电压反转。开关电源单元还包括接通时间控制电路，其中设置时间常数以相应地关闭第二开关元件。

6. 发明授权

US06631079B2 Switching power supply apparatus having plural outputs and plural output voltage detection 有权
公开(公告)号：US06631079B2
公开(公告)日：2003-10-07
申请号：US10118502
申请日：2002-04-05
申请人： Tatsuya Hosotani , Hiroshi Takemura , Takahiro Minagawa
发明人： Tatsuya Hosotani , Hiroshi Takemura , Takahiro Minagawa
IPC分类号： H02M3335
CPC分类号： H02M3/3385 , H02M3/33561
摘要： A switching power supply apparatus comprises a transformer having primary winding and at least two secondary windings, a first switching element connected in series with the primary winding, a control circuit for controlling the output from the first switching element by control of the on-time thereof, a rectification circuit for rectifying at least two outputs from the secondary windings, an output detection circuit for detecting the output voltages and feeding back the output voltages as a control signal for control of the on-time to the control circuit. The output voltage detection circuit comprises a control signal formation section in which the control signal for the on-time is formed, corresponding to a voltage at a voltage comparison terminal, and plural voltage detectors connected between the at least two outputs of the secondary windings and the voltage comparison terminal, respectively.

7. 发明授权

US06320763B2 Switching power supply unit 有权
公开(公告)号：US06320763B2
公开(公告)日：2001-11-20
申请号：US09753593
申请日：2001-01-03
申请人： Tatsuya Hosotani
发明人： Tatsuya Hosotani
IPC分类号： H02M3335
CPC分类号： H02M3/3382 , H02M3/33569 , H02M2001/0025 , H02M2001/0032 , H02M2001/0058 , Y02B70/1491 , Y02B70/16
摘要： A switching power supply unit comprising: a transformer having a primary winding and a secondary winding, a capacitor coupled to the transformer, a first switching circuit connected in series with a series circuit of the primary winding and an input power source, the first switching circuit comprising a parallel circuit comprising a first switching element, a first diode and a first capacitor, a second switching circuit connected in parallel with the primary winding, the second switching circuit comprising a parallel circuit comprising a second switching element, a second diode and a second capacitor, first and second switching controlling circuits connected to the first and second switching circuits, respectively for controlling the first and second switching elements so as to turn on/off alternately with a period in which the first and second switching elements turn off being interposed therebetween, a rectifying and smoothing circuit connected to the secondary winding; and voltage detection and voltage reduction circuit having a control signal input terminal and connected to the rectifying and smoothing circuit, the voltage detection and voltage reduction circuit detecting an output voltage of the rectifying and smoothing circuit and outputting a feedback signal to the first switching controlling circuit such that an output voltage of the rectifying and smoothing circuit is stabilized at one of a first voltage and a second voltage lower than the first voltage based on a signal applied to the control signal input terminal.

8. 发明授权

US08837174B2 Switching power-supply apparatus including switching elements having a low threshold voltage 有权
标题翻译：开关电源设备包括具有低阈值电压的开关元件
公开(公告)号：US08837174B2
公开(公告)日：2014-09-16
申请号：US13009892
申请日：2011-01-20
申请人： Tatsuya Hosotani
发明人： Tatsuya Hosotani
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33592 , H02M3/33584 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： In a switching power-supply apparatus, a primary-side power converter circuit includes a half bridge system and a synchronous rectifier circuit is provided as a rectifier circuit of a secondary-side power converter circuit. An on time ratio of the on time of a first switching element to the on time of a second switching element is controlled so as to provide an operation mode in which energy is regenerated from the secondary side to the primary side when the load is light.
摘要翻译：在开关电源装置中，初级侧电力转换电路包括半桥系统，同步整流电路作为二次侧电力变换电路的整流电路。控制第一开关元件的接通时间与第二开关元件的导通时间的接通时间比，以便提供当负载较轻时从次级侧到初级侧再生能量的操作模式。

9. 发明授权

US08576584B2 Switching control circuit and switching power supply device 有权
标题翻译：开关控制电路和开关电源装置
公开(公告)号：US08576584B2
公开(公告)日：2013-11-05
申请号：US13036191
申请日：2011-02-28
申请人： Tatsuya Hosotani
发明人： Tatsuya Hosotani
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/32 , H02M2001/0032 , Y02B70/16
摘要： A switching control IC outputs a rectangular wave signal from an output terminal thereof to a driving circuit. A feedback circuit compares a value of a divided voltage of a voltage across output terminals of a switching power supply device with a reference voltage, generates a feedback signal, and inputs the feedback signal into a feedback terminal of the switching control IC. A capacitor and a Zener diode are connected between the feedback terminal and a ground terminal. The Zener diode is selectively connected, and a voltage at the feedback terminal is changed in accordance with the presence of the Zener diode. A voltage at the feedback terminal is detected, and one of a latch method and a hiccup method is selected as a method for an overcurrent protection operation in accordance with the detected voltage.
摘要翻译：开关控制IC从其输出端子向驱动电路输出矩形波信号。反馈电路将开关电源装置的输出端子间的电压的分压值与参考电压进行比较，生成反馈信号，并将反馈信号输入到开关控制IC的反馈端子。电容器和齐纳二极管连接在反馈端子和接地端子之间。选择性地连接齐纳二极管，并且根据齐纳二极管的存在来改变反馈端的电压。检测反馈端子的电压，根据检测到的电压，选择锁存方法和打嗝方法之一作为过电流保护动作的方法。

10. 发明申请

US20120314458A1 SWITCHING POWER SUPPLY APPARATUS 有权
标题翻译：切换电源设备
公开(公告)号：US20120314458A1
公开(公告)日：2012-12-13
申请号：US13584844
申请日：2012-08-14
申请人： Tatsuya HOSOTANI
发明人： Tatsuya HOSOTANI
IPC分类号： H02M3/335
CPC分类号： H02M3/33569 , H02M1/38
摘要： A switching control IC conducts on-off control on a first switching element. A second switching control circuit is provided between a high-side driving winding of a transformer T and a second switching element. The second switching control circuit discharges a capacitor in a negative direction with a constant current during an on period of the first switching element, and then after the second switching element is turned on, charges the capacitor in a positive direction with a constant current. A transistor controls the on period of the second switching element in accordance with the ratio of a charging current to a discharge current such that the ratio of the on period of the second switching element to the on period of the first switching element is substantially always constant.
摘要翻译：开关控制IC对第一开关元件进行开 - 关控制。第二开关控制电路设置在变压器T的高侧驱动绕组和第二开关元件之间。第二开关控制电路在第一开关元件的导通期间以恒定电流在负方向上放电电容，然后在第二开关元件导通之后，以恒定电流向正方向充电电容器。晶体管根据充电电流与放电电流的比例来控制第二开关元件的导通周期，使得第二开关元件的导通周期与第一开关元件的导通周期的比率基本上总是恒定。

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