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1.发明授权公开(公告)号：US07002324B2
公开(公告)日：2006-02-21
申请号：US10383967
申请日：2003-03-07
申请人： Takeshi Uematsu , Takakazu Imai , Hiroshi Kawasaki
发明人： Takeshi Uematsu , Takakazu Imai , Hiroshi Kawasaki
CPC分类号： H02M3/1584
摘要： This invention provides a switching power supply control circuit based on the parallel operation scheme that suppresses ripples in the output voltage. The control circuit comprises switching circuit blocks 10 and 20 connected in parallel, output reactors 31 and 32 connected in parallel corresponding to the switching circuit blocks 10 and 20, and a control circuit 40 that controls the operation of the switching circuit blocks 10 and 20. The control circuit 40 comprises: means of calculating the difference between the reactor currents IL1 and IL2 flowing through the output reactors 31 and 32 and the average value of the reactor currents, means of generating control voltages Vo1 and Vo2 corresponding to the switching circuit blocks 10 and 20 based on the calculated differences and the output voltage Vop comparators 48 and 49 that compare the control voltages Vo1 and Vo2 against the reference voltage Vref and latch circuits 51 and 52 that latch the outputs of the comparators 48 and 49 in response to the clock signal CLK.
摘要翻译： 本发明提供了一种基于并行操作方案的开关电源控制电路，其抑制输出电压中的波纹。 控制电路包括并联连接的开关电路块10和20，对应于开关电路块10和20并联连接的输出电抗器31和32以及控制开关电路块10和20的操作的控制电路40。 控制电路40包括：计算流过输出电抗器31和32的电抗器电流I L1和I L2之间的差的平均值以及电抗器电流的平均值 根据计算出的差值和输出电压V OUT产生对应于开关电路块10和20的控制电压V O1和V OUT2的装置， SUB>比较器48和49，其将控制电压V SUB1和V OUT2与参考电压V SUB ref和锁存电路51和52进行比较， 响应于时钟信号CLK锁存比较器48和49的输出。
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公开(公告)号：US06960904B2
公开(公告)日：2005-11-01
申请号：US10801836
申请日：2004-03-17
CPC分类号： H02M1/082
摘要： An adder 11 outputs a signal VS indicating a value of (Vr−Vo), and a multiplier 12 outputs a control signal GS indicating a value of G(Vr−Vo) on the basis of the signal VS. An adder 13 outputs a signal HS on the basis of the control signal GS and a signal FS outputted from an operation circuit 30, and a PWM signal generating circuit 20 generates a PWM signal KS on the basis of the signal HS and a ramp signal RS outputted from a ramp signal circuit 15, and outputs this signal KS to a switching power supply. A counter 14 counts an on time of the PWM signal KS and retains a count value at a time of receiving a sample signal SMP. The operation circuit 30 has a high-pass filter 31 and an integrator 32, performs an operation based on a signal DS indicating the count value outputted from the counter 14, and outputs the signal FS after the operation.
摘要翻译： 加法器11输出表示（Vr-Vo）的值的信号VS，乘法器12基于信号VS输出表示G（Vr-Vo）的值的控制信号GS。 加法器13基于控制信号GS输出信号HS和从运算电路30输出的信号FS，PWM信号生成电路20根据信号HS和斜坡信号RS生成PWM信号KS 从斜坡信号电路15输出，并将该信号KS输出到开关电源。 计数器14对PWM信号KS的导通时间进行计数，并且在接收采样信号SMP时保持计数值。 运算电路30具有高通滤波器31和积分器32，根据从计数器14输出的计数值的信号DS进行运算，并在运算后输出信号FS。
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公开(公告)号：US07078884B2
公开(公告)日：2006-07-18
申请号：US10811968
申请日：2004-03-30
CPC分类号： H02M3/1584 , H02M3/1588 , Y02B70/1466
摘要： A selector sets respective phases of pulse driving signals in reverse when a proportion signal or integration signal does not exceed a threshold. Shifting the respective phases of the pulse driving signals from each other lowers the ripple voltage. When the load current increases drastically, the output voltage Vo tends to decrease remarkably because of the shortage of capacity in the power supply. In this case, when the proportion signal or integration signal exceeds its corresponding threshold, a phase control unit causes the pulse driving signals to synchronize their phases, i.e., the selector supplies the same ramp wave to the comparators, so that respective output voltages supplied from the DC voltage converter circuits attain the same phase, thereby restraining the output voltage supplied to the load from decreasing remarkably.
摘要翻译： 当比例信号或积分信号不超过阈值时，A选择器反向设置脉冲驱动信号的各个相位。 使脉冲驱动信号的各个相位彼此相位降低纹波电压。 当负载电流急剧增加时，由于电源容量不足，输出电压Vo会显着下降。 在这种情况下，当比例信号或积分信号超过其对应的阈值时，相位控制单元使脉冲驱动信号同步其相位，即，选择器向比较器提供相同的斜波，从而从 直流电压转换器电路达到相同的相位，从而抑制提供给负载的输出电压显着降低。
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公开(公告)号：US07075278B2
公开(公告)日：2006-07-11
申请号：US10797150
申请日：2004-03-11
IPC分类号： G05F1/40
CPC分类号： H02M3/157 , H02M2001/0009
摘要： A controller 7A for generating a drive signal (PWM signal) PS for controlling a switching power supply, comprises control signal setting means 10, 11 for setting a control signal CS on the basis of an output voltage Vo and a target voltage Vr; current estimating means 12 for estimating an inductor current on the basis of the drive signal PS and for generating an estimated current signal PC; DC component removing means 14, 15 for extracting a DC component DC included in the estimated current signal PC and for removing the DC component DC from the estimated current signal PC; DC component resetting means 13, 14 for resetting the extracted DC component DC every predetermined time; and comparing means 16 for comparing the control signal CS with the estimated current signal PC′ after the removal of the DC component DC.
摘要翻译： 用于产生用于控制开关电源的驱动信号（PWM信号）PS的控制器7A包括控制信号设定装置10,11，用于根据输出电压Vo和目标电压Vr设定控制信号CS; 电流估计装置12，用于基于驱动信号PS估计电感器电流并产生估计的电流信号PC; DC分量去除装置14,15，用于提取包括在估计电流信号PC中的DC分量DC，并从估计的电流信号PC去除DC分量DC; DC分量复位装置13,14，用于每隔预定时间复位提取的DC分量DC; 以及比较装置16，用于在去除DC分量DC之后比较控制信号CS与估计的电流信号PC'。
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5.发明授权Switching power supply, and method and circuit for regulating output of the same 失效开关电源，以及用于调节其输出的方法和电路公开(公告)号：US07071666B2
公开(公告)日：2006-07-04
申请号：US10800679
申请日：2004-03-16
CPC分类号： H02M1/36 , H02M3/157 , H02M2001/0025
摘要： An output voltage of a switching power supply is regulated to a target value. When the target value of the output voltage is altered, the reference value is changed monotonously and linearly a plurality of times at a plurality of gradients to the altered target value. An input voltage of the power supply is switched in response to a switching pulse with the duty ratio calculated according to a difference between the reference value and the output voltage.
摘要翻译： 将开关电源的输出电压调节为目标值。 当改变输出电压的目标值时，参考值以多个梯度单调和线性地多次改变为改变的目标值。 响应于根据基准值和输出电压之间的差计算的占空比的开关脉冲来切换电源的输入电压。
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公开(公告)号：US06956360B2
公开(公告)日：2005-10-18
申请号：US10801831
申请日：2004-03-17
CPC分类号： H02M3/157
摘要： A controller 7A for generating a drive signal PS for switching control of a switching element in a switching power supply, includes a duty ratio generator 10, 11 for detecting a duty ratio D of the drive signal PS for controlling the switching element of the switching power supply, and generating a signal corresponding to the duty ratio; a control signal generator 13, 14 for generating a control signal CS on the basis of a difference between a target voltage VREF in the switching power supply and an output voltage Vo detected in the switching power supply; an operation unit 15 for generating a signal corresponding to a product of the signal corresponding to the duty ratio, and the control signal CS; and a drive signal generator 16, 17 for generating the drive signal PS on the basis of the signal generated by the operation unit 15.
摘要翻译： 用于产生用于开关电源中的开关元件的开关控制的驱动信号PS的控制器7A包括占空比发生器10,11，用于检测用于控制开关的开关元件的驱动信号PS的占空比D 电源，并产生与占空比对应的信号; 控制信号发生器13,14，用于根据开关电源中的目标电压V SUB REF与输出电压V OUT之间的差产生控制信号CS， 在开关电源中检测到; 用于产生与占空比对应的信号的乘积相对应的信号的操作单元15和控制信号CS; 以及用于基于由操作单元15产生的信号产生驱动信号PS的驱动信号发生器16,17。
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7.发明授权公开(公告)号：US06791305B2
公开(公告)日：2004-09-14
申请号：US10374585
申请日：2003-02-24
申请人： Takakazu Imai , Takeshi Uematsu
发明人： Takakazu Imai , Takeshi Uematsu
IPC分类号： G05F140
CPC分类号： H02M3/157 , H02M3/1588 , Y02B70/1466
摘要： This invention provides a switching power supply control circuit that can switch the output voltage with high precision and at high speed. The control circuit comprises an A/D converter 31 that generates a output voltage digital value D1 indicating the actual output Vo in response to clock signal CLK1, a reference voltage generating circuit 32 that generates a reference voltage digital value D2 that indicated the target value of the output voltage in response to clock signal CLK2, a subtracter 33 that compares the output voltage digital value D1 and reference voltage digital value D2 and generates an error voltage digital value D3 based thereupon, a latch circuit 34 that reads the error voltage digital value D3 in response to clock signal CLK3 and controls the operation of the switching circuit block 10 based thereupon and an arithmetic circuit 35. The phases of the clock signal CLK1 and the clock signal CLK3 are substantially shifted and the phases of the clock signal CLK2 and the clock signal CLK3 are substantially shifted.
摘要翻译： 本发明提供一种开关电源控制电路，其可以高精度和高速度地切换输出电压。 控制电路包括A / D转换器31，其产生响应于时钟信号CLK1指示实际输出Vo的输出电压数字值D1;参考电压产生电路32，产生指示目标值的参考电压数字值D2 响应于时钟信号CLK2的输出电压，将输出电压数字值D1和参考电压数字值D2进行比较的减法器33，基于此产生误差电压数字值D3;锁存电路34，其读出误差电压数字值D3 响应于时钟信号CLK3，并且控制基于其的开关电路块10的操作和运算电路35.时钟信号CLK1和时钟信号CLK3的相位基本上偏移，并且时钟信号CLK2和时钟的相位 信号CLK3基本上移位。
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公开(公告)号：US07405952B2
公开(公告)日：2008-07-29
申请号：US11354057
申请日：2006-02-15
申请人： Takeshi Uematsu
发明人： Takeshi Uematsu
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M3/33507 , Y10T307/516 , Y10T307/527
摘要： A power supply device has first and second terminals, a transformer, a switching element and an auxiliary power supply element. The first and second terminals receive input power having an input voltage. The transformer has a primary winding and a secondary winding. The primary winding has a pair of winding terminals. One of the pair of winding terminals is connected to the first terminal. The switching element is connected between the second terminal and the other of the pair of winding terminals of the primary winding. The auxiliary power supply element feeds electric power to the transformer when the input voltage decreases to or less than a predetermined value. The auxiliary power supply element has a capacitor and a second switching element for storing energy from the primary winding into the first capacitor during a normal operation of the power supply device.
摘要翻译： 电源装置具有第一和第二端子，变压器，开关元件和辅助电源元件。 第一和第二端子接收具有输入电压的输入功率。 变压器具有初级绕组和次级绕组。 初级绕组有一对绕组端子。 一对绕组端子中的一个连接到第一端子。 开关元件连接在初级绕组的一对绕组端子的第二端子和另一端子之间。 当输入电压降低到或小于预定值时，辅助电源元件将电力馈送到变压器。 辅助电源元件具有电容器和第二开关元件，用于在电源装置的正常操作期间将来自初级绕组的能量存储到第一电容器中。
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公开(公告)号：US20060187685A1
公开(公告)日：2006-08-24
申请号：US11354057
申请日：2006-02-15
申请人： Takeshi Uematsu
发明人： Takeshi Uematsu
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M3/33507 , Y10T307/516 , Y10T307/527
摘要： A power supply device has first and second terminals, a transformer, a switching element, and auxiliary power supply means. The first and second terminals receive input power having an input voltage. The transformer has a primary winding and a secondary winding. The primary winding has a pair of winding terminals. One of the pair of winding terminals is connected to the first terminal. The switching element is connected between the second terminal and the other of the pair of winding terminals of the primary winding. The auxiliary power supply means feeds electric power to the transformer when the input voltage decreases to or less than a predetermined value. The auxiliary power supply means has a capacitor and a second switching mean for storing energy from the primary winding into the first capacitor during a normal operation of the power supply device. When the input voltage decreases to or less than the predetermined value, the auxiliary power supply means provides a current path between the first and second terminals to supply the energy stored in the capacitor to the transformer, thereby continuing feed of the electric power to the secondary winding.
摘要翻译： 电源装置具有第一和第二端子，变压器，开关元件和辅助电源装置。 第一和第二端子接收具有输入电压的输入功率。 变压器具有初级绕组和次级绕组。 初级绕组有一对绕组端子。 一对绕组端子中的一个连接到第一端子。 开关元件连接在初级绕组的一对绕组端子的第二端子和另一端子之间。 当输入电压降低到或小于预定值时，辅助电源装置将电力馈送到变压器。 辅助电源装置具有电容器和第二开关装置，用于在电源装置的正常操作期间将能量从初级绕组存储到第一电容器中。 当输入电压降低到或小于预定值时，辅助电源装置在第一和第二端子之间提供电流路径，以将存储在电容器中的能量提供给变压器，从而继续将电力馈送到次级 绕组。
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公开(公告)号：US20060164869A1
公开(公告)日：2006-07-27
申请号：US11335463
申请日：2006-01-20
申请人： Takeshi Uematsu
发明人： Takeshi Uematsu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0058 , Y02B70/1491
摘要： An inverter circuit has a switching element, an inductance, a transformer, a capacitor, and a controller. The switching element is connectable between a higher potential terminal and a lower potential terminal of a direct-current power supply. The inductance is connected between the higher potential terminal and the switching element. The transformer has a primary winding and a secondary winding. The secondary winding has two ends. The capacitor is connected to the primary winding in series. The series-connected capacitor and primary winding is connected in parallel to the switching element. The controller switches the switching element. Therefore, the inverter circuit converts a direct current supplied from the direct-current power supply to an alternating current. The number of switching element in the inverter circuit is only one so that the structure of the inverter circuit is simplified and the manufacturing cost thereof can be reduced.
摘要翻译： 逆变器电路具有开关元件，电感，变压器，电容器和控制器。 开关元件可连接在直流电源的较高电位端子和较低电位端子之间。 电感连接在高电位端子和开关元件之间。 变压器具有初级绕组和次级绕组。 次级绕组有两端。 电容器串联连接到初级绕组。 串联电容器和初级绕组与开关元件并联连接。 控制器切换开关元件。 因此，逆变器电路将从直流电源供给的直流电转换成交流电。 逆变器电路中的开关元件的数量仅为一个，从而简化了逆变器电路的结构，并且可以降低其制造成本。
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