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1. 发明公开

EP2173025A1 SWITCHING POWER UNIT 审中-公开
标题翻译：开关电源
公开(公告)号：EP2173025A1
公开(公告)日：2010-04-07
申请号：EP08739876.4
申请日：2008-04-04
申请人： Murata Manufacturing Co. Ltd.
发明人： UNO, Yoshiyuki , TOKUGAWA, Tomokuni , HOSOTANI, Tatsuya
IPC分类号： H02M3/28
CPC分类号： H02M1/4225 , H02M3/28 , H02M2001/0006 , H02M2001/008 , Y02B70/126
摘要： A digital signal processing circuit (15) which performs average current control, for example, is disposed on a secondary side of a transformer (T1) of an isolated DC-DC convertor (50), and a switching control signal output from the digital signal processing circuit (15) is transmitted to a switching element (Ql) included in a PFC convertor (40) through an isolated drive circuit (14). The digital signal processing circuit (15) obtains an average value of currents supplied to an inductor L1 in accordance with a voltage output from a bias winding (Ls) of the inductor (L1) or an output from a secondary side of a current transformer (T2) which detects a drain current of the switching element (Ql). Furthermore, the average value of the currents follows a waveform (full-wave rectification sine wave) of an input voltage Vi.
摘要翻译：例如，执行平均电流控制的数字信号处理电路（15）设置在隔离DC-DC转换器（50）的变压器（T1）的次级侧，并且从数字信号输出开关控制信号处理电路（15）通过隔离驱动电路（14）被传输到包括在PFC转换器（40）中的开关元件（Q1）。数字信号处理电路（15）根据从电感器（L1）的偏置绕组（Ls）输出的电压或者从电流互感器（L1）的次级侧输出的电压来获得提供给电感器L1的电流的平均值 T2），其检测开关元件（Q1）的漏极电流。此外，电流的平均值遵循输入电压Vi的波形（全波整流正弦波）。

2. 发明公开

EP2166657A1 PFC CONVERTER 审中-公开
标题翻译： PFC-UMSETZER
公开(公告)号：EP2166657A1
公开(公告)日：2010-03-24
申请号：EP08739878.0
申请日：2008-04-04
申请人： Murata Manufacturing Co. Ltd.
发明人： UNO, Yoshiyuki , TOKUGAWA, Tomokuni , HOSOTANI, Tatsuya
IPC分类号： H02M3/155
CPC分类号： H02M1/4225 , H02M1/44 , H02M3/157 , Y02B70/126
摘要： A diode bridge (B1) that performs full-wave rectification on an AC input power supply (Vac) is provided. A switching element (Q1) that performs switching on an output voltage thereof, an inductor (L1) that passes a current interrupted by the switching element (Q1) and that accumulates and emits excitation energy, a diode (D1), and a smoothing capacitor (C1) constitute a step-up chopper circuit. A digital signal processing circuit (13) detects a phase of an input voltage (Vi), and a switching frequency of the switching element (Q1) 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：提供了在交流输入电源（Vac）上执行全波整流的二极管桥（B1）。对其输出电压进行开关的开关元件（Q1），通过由开关元件（Q1）中断并蓄积并发出激励能量的电流的电感器（L1），二极管（D1）和平滑电容器（C1）构成升压斩波电路。数字信号处理电路（13）检测输入电压（Vi）的相位，并根据该相位调制开关元件（Q1）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来抑制EMI噪声的同时接受宽范围的输入电压。

3. 发明公开

EP1868285A1 POWER SUPPLY DEVICE 审中-公开
标题翻译：电源设备
公开(公告)号：EP1868285A1
公开(公告)日：2007-12-19
申请号：EP05741455.9
申请日：2005-05-17
申请人： MURATA MANUFACTURING CO., LTD.
发明人： UNO, Yoshiyuki , NISHIDA, Akio , TAKEMURA, Hiroshi
IPC分类号： H02M7/12
CPC分类号： H02M3/155 , H02M7/17 , H02M7/2176 , Y10T307/696
摘要： A main power-supply circuit (11) and a secondary power-supply circuit (14) connected to an alternating current power supply AC are contained. The main power-supply circuit (11) contains a full-wave rectifier (D1) and an input current control circuit (12) generally corresponding to a harmonic current suppression circuit. The input current control circuit (12) contains a resistor (R1) as circuit current detection means and a control circuit (13) for controlling a switch element (Q1) by detecting a current flowing in the resistor (R1). Then, a connection is performed so that a current flowing in a diode as a second rectifying circuit of the secondary power-supply circuit (14) may return to the alternating current power supply through the resistor (R1).
摘要翻译：包含连接到交流电源AC的主电源电路（11）和副电源电路（14）。主电源电路（11）包含通常对应于谐波电流抑制电路的全波整流器（D1）和输入电流控制电路（12）。输入电流控制电路12包括作为电路电流检测装置的电阻器R1和通过检测在电阻器R1中流动的电流来控制开关元件Q1的控制电路13。然后，进行连接，使得作为次级电源电路（14）的第二整流电路的二极管中流过的电流可以通过电阻器（R1）返回到交流电源。

4. 发明公开

EP3386086A1 SWITCHING POWER SOURCE DEVICE AND ERROR CORRECTION METHOD 审中-公开
公开(公告)号：EP3386086A1
公开(公告)日：2018-10-10
申请号：EP16870342.9
申请日：2016-10-26
申请人： Murata Manufacturing Co., Ltd.
发明人： UNO, Yoshiyuki
IPC分类号： H02M3/155
CPC分类号： H02M3/1584 , H02M1/08 , H02M3/156 , H02M3/157 , H02M2001/0009 , H02M2001/0025
摘要： A magnitude of an output current of a converter (11A), which has been detected in a state in which a converter (11B) is stopped, is transmitted to a measurement tool and a magnitude of an output current of a converter (11B), which has been detected in a state in which the converter (11A) is stopped, is transmitted to the measurement tool. Correction values determined by the measurement tool based on transmission contents are received and stored in a memory (175). A magnitude (detection current value I1) of the output current which is used for PWM control on the converter (11A) and a magnitude (detection current value 12) of the output current which is used for PWM control on the converter (11B) are respectively corrected with the correction values. With this configuration, a switching power supply apparatus and an error correction method capable of correcting variations in output currents for the respective converters are provided.

5. 发明公开

EP3370330A1 SWITCHING POWER SOURCE DEVICE AND DROOP CHARACTERISTIC CORRECTION METHOD 有权
公开(公告)号：EP3370330A1
公开(公告)日：2018-09-05
申请号：EP16870343.7
申请日：2016-10-26
申请人： Murata Manufacturing Co., Ltd.
发明人： UNO, Yoshiyuki , SHIJI, Hajime
IPC分类号： H02M3/155
CPC分类号： H02M3/155 , H02M3/07 , H02M3/158 , H03K3/57 , H03K17/145
摘要： In a switching power-supply apparatus (1) that controls magnitudes of output voltages of respective converters (11A, 11B) connected in parallel to be equal to a target voltage value, only selected one of the converters (11A, 11B) is made to operate. In this state, correction values generated by the respective converters (11A, 11B) are received and stored in memory (164). Droop characteristics generated for the respective converters (11A, 11B) are corrected using the correction values. Accordingly, a switching power-supply apparatus and a droop characteristic correction method capable of correcting variations in droop characteristics generated for respective power converters are provided.

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