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公开(公告)号：EP3706512B1
公开(公告)日：2024-05-22
申请号：EP18873316.6
申请日：2018-04-17
CPC分类号： H02M3/28 , H05B6/666 , H05B2206/04320130101
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公开(公告)号：EP4366149A1
公开(公告)日：2024-05-08
申请号：EP21948331.0
申请日：2021-06-30
发明人： NAKANISHI, Takuya , OJIKA, Satoshi
IPC分类号： H02M3/28
摘要： In a power conversion device (100) including an LLC converter (10) and a controller (20), the controller (20) performs drive control of an inverter circuit (1) in the LLC converter (10), to perform output control of the LLC converter (10). The controller (20) performs control calculation for a value Za of a manipulated variable Z so that output voltage comes close to target voltage, and acquires a combination of a phase shift amount θ and a frequency f corresponding to the value Za of the manipulated variable Z, to perform drive control of the inverter circuit (1).
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公开(公告)号：EP2676360B1
公开(公告)日：2018-06-13
申请号：EP12712131.7
申请日：2012-02-17
申请人： Salcomp Oyj
发明人： SUORSA, Ilkka , MINKKINEN, Jarmo
CPC分类号： H02M1/44 , H01F27/40 , H01F2027/065 , H02M3/28
摘要： A switched-mode power supply is disclosed, which includes a transformer with a primary winding and a secondary winding. A switch is coupled in series with the primary winding and configured to repeatedly interrupt a current through the primary winding. An inductor is located differently with reference to magnetic fields that the primary and secondary windings are configured to induce. A connection exists between the inductor and a circuit that contains one of the primary and secondary windings. The connection is configured to connect from the inductor to the circuit a first voltage that has a waveform representative of and a polarity opposite to a second voltage induced in the switched-mode power supply by leakage flux of the transformer at a switching moment of the switch.
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公开(公告)号：EP2589136B1
公开(公告)日：2018-03-21
申请号：EP11738318.2
申请日：2011-06-28
申请人： Brusa Elektronik AG
发明人： KRAUSE, Axel
CPC分类号： H02M3/28 , H02M1/12 , H02M3/33523 , H02M7/217 , Y02B70/1433 , Y02B70/1441
摘要： A voltage converter (1a . . . 1g), in particular a resonant converter for converting an input AC or DC voltage (UE) into an output DC voltage (UA). On the secondary side, a first secondary capacitor (CS1) is arranged between the secondary partial windings (WS1, WS2) of a transformer (TR1); furthermore, a first secondary full-bridge rectifier (GS1) provides the output direct voltage (UA), the inputs of which are connected to a secondary partial winding (WS1, WS2) each of the transformer (TR1), resulting, at the input of the first secondary full-bridge rectifier (GS1), in a series connection including the secondary partial windings (WS1, WS2) and the first secondary capacitor (CS1). Finally, the voltage converter (1a . . . 1f) includes a second secondary full-bridge rectifier (GS2) connected in parallel with the first secondary full-bridge rectifier (GS1) for providing the output direct voltage (UA), wherein the first secondary capacitor (CS1) is connected to the input of the second secondary full-bridge rectifier (GS2).
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公开(公告)号：EP2372887A4
公开(公告)日：2018-03-07
申请号：EP08879196
申请日：2008-12-26
CPC分类号： G05F1/56 , H02M3/28 , H02M2001/0032 , H02M2001/0045 , Y02B70/16 , Y10T307/944
摘要： For the purpose of obtaining an analog current output circuit that can realize a reduction in a power loss that occurs when the resistance of a load connected to the analog current output circuit is small and securing of quick responsiveness performed when the resistance of the connected load is large, a rising start position and a tilt of an internal control voltage Va are set such that the internal control voltage Va crosses, at the maximum of an analog output current, a load end voltage Vb obtained when the resistance of a load 3 is a resistance near the center of a specification range. According to a comparison result in a comparator 11, a switch 8 causes a DC/DC converter 1 to input a high reference voltage H and causes an output transistor 2 to output a high power supply voltage VccH when the internal control voltage Va is smaller than the load end voltage Vb and causes the DC/DC converter 1 to input a low reference voltage L and causes the output transistor 2 to output a low power supply voltage VccL when the internal control voltage Va is larger than the load end voltage Vb.
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7.发明公开
公开(公告)号：EP3288048A1
公开(公告)日：2018-02-28
申请号：EP16782781.5
申请日：2016-04-13
CPC分类号： H01F27/32 , H01F17/04 , H01F27/2804 , H01F27/40 , H01F30/10 , H01F2019/085 , H01F2027/2809 , H01F2027/408 , H02M3/28 , H05K1/0298
摘要： A transformer includes a multilayer board including insulation layers stacked in a thickness direction, a primary coil provided on at least one of the insulation layers, and a secondary coil provided on at least one of the insulation layers. The primary coil includes first sub coils electrically connected in series to each other, and second sub coils electrically connected in series to each other. Surfaces of the plurality of insulation layers constitute layer planes of the multilayer board. At least two of the first sub coils are provided on layer planes out of the layer plane different from each other. At least two of the second sub coils are provided on layer planes out of the layer planes different from each other. An average of positions of the first sub coils in the thickness direction is aligned with an average of positions of the second sub coils in the thickness direction.
摘要翻译： 本发明提供一种变压器，其包括：多层基板，其具有在厚度方向上层叠的绝缘层;至少一方的绝缘层上设置的一次线圈;以及至少一方的绝缘层上设置的二次线圈。 初级线圈包括彼此串联电连接的第一子线圈和彼此串联电连接的第二子线圈。 多个绝缘层的表面构成多层板的层面。 第一子线圈中的至少两个设置在彼此不同的层平面之外的层平面上。 至少两个第二子线圈设置在彼此不同的层平面中的层平面上。 第一子线圈在厚度方向上的位置的平均值与第二子线圈在厚度方向上的位置的平均值一致。
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公开(公告)号：EP3267569A1
公开(公告)日：2018-01-10
申请号：EP16761498.1
申请日：2016-02-25
申请人： FDK Corporation
CPC分类号： H01F27/2804 , H01F30/10 , H01F2027/2809 , H01F2027/2819 , H02M1/00 , H02M3/28 , H02M3/33592 , H02M7/003 , H02M2001/0054 , H05K1/0262 , H05K1/144 , H05K1/16 , H05K1/165 , H05K2201/042 , H05K2201/086 , H05K2201/2036 , Y02B70/1491
摘要： An isolated switching power supply of the present invention includes: a first circuit board 10 provided with a pattern of a primary winding L11 constituting an isolation transformer T1; a second circuit board 20 provided with patterns of secondary windings L21 and L22 constituting the isolation transformer T1, wherein a secondary winding pattern portion 22 is arranged to face a primary winding pattern portion 12 of the first circuit board 10 at a predetermined interval G; and a core 30 inserted into the primary winding L11 of the first circuit board 10 and the secondary windings L21 and L22 of the second circuit board 20 and made of a magnetic body constituting the isolation transformer T1.
摘要翻译： 本发明的隔离开关电源包括：第一电路板10，其设置有构成隔离变压器T1的初级绕组L11的图案; 设置有构成隔离变压器T1的次级绕组L21和L22的图案的第二电路板20，其中次级绕组图案部分22布置为以预定间隔G与第一电路板10的初级绕组图案部分12相对; 以及插入第一电路板10的初级绕组L11和第二电路板20的次级绕组L21和L22并由构成隔离变压器T1的磁体构成的芯30。
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9.发明授权
公开(公告)号：EP3026807B1
公开(公告)日：2018-01-10
申请号：EP13889872.1
申请日：2013-07-23
申请人： Shimadzu Corporation
发明人： MIZUTANI, Shiro
CPC分类号： H01J49/022 , H01J49/0095 , H02M1/32 , H02M3/28 , H02M7/06 , H02M7/10 , H02M2001/0077
摘要： An excessive overshoot preventing unit (16) is connected to a loop in which a command voltage Vf according to a difference between: a voltage obtained by dividing an output voltage Vout as a high voltage; and a control voltage Vcont set from the outside is obtained and fed back to each of drive circuits (3 and 5) of a positive voltage generating unit (2) and a negative voltage generating unit (4). The excessive overshoot preventing unit (16) clamps the command voltage Vf at a voltage value according to the control voltage Vcont. An overshoot that occurs in the voltage generating unit (2 or 4) at the time of polarity switching mainly depends on a circuit constant, and hence the amount of overshoot is excessive in the case of a low-voltage output even if the amount of overshoot is optimal in the case of a rated output. To deal with this, in this power unit, the overshoot of the command voltage Vf is suppressed by the excessive overshoot preventing unit (16), and hence the output voltage can be promptly settled to a target voltage even in the case of a low-voltage output.
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公开(公告)号：EP3229358A4
公开(公告)日：2017-12-13
申请号：EP15865831
申请日：2015-11-20
发明人： SATOH NOBUAKI
CPC分类号： H02M3/33523 , G05F1/70 , H02M1/08 , H02M1/38 , H02M1/4208 , H02M1/4225 , H02M1/4241 , H02M3/28 , H02M3/335 , H02M2001/0054 , H02M2001/007 , Y02B70/126
摘要： A switching power supply device includes a power factor improvement circuit, a phase-shifted full bridge type DC/DC converter that is arranged in a rear stage of the power factor improvement circuit and has a full-bridge type switching circuit, an output current detecting circuit for detecting an output current to be supplied to a load, an output voltage detecting circuit for detecting an output voltage to be supplied to the load, and a power factor improvement circuit output voltage detecting circuit for detecting a power factor improvement circuit output voltage, which is input from the power factor improvement circuit to the DC/DC converter. The switching power supply device further includes a control unit for dynamically changing dead times of the full-bridge type switching circuit based on the power factor improvement circuit output voltage, and the output current and the output voltage to be supplied to the load, and the control unit applies the dead times that have been changed to control switching of the full-bridge type switching circuit.
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