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1. 发明申请

US20100188011A1 PIEZOELECTRIC TRANSFORMER DRIVING DEVICE, COLD-CATHODE TUBE INVERTER, COLD-CATHODE TUBE DRIVING DEVICE, AND IMAGE FORMING APPARATUS 有权
标题翻译：压电变压器驱动装置，冷阴极管变频器，冷阴极管驱动装置和图像形成装置
公开(公告)号：US20100188011A1
公开(公告)日：2010-07-29
申请号：US12694321
申请日：2010-01-27
申请人： Toru KOSAKA , Masao Yaji , Akira Hagiwara
发明人： Toru KOSAKA , Masao Yaji , Akira Hagiwara
IPC分类号： H05B41/288 , H02M7/5395
CPC分类号： H05B41/2827
摘要： A piezoelectric transformer driving device including: an oscillator; a frequency-divider outputting a pulse by dividing a clock signal from the oscillator by a frequency-divide ratio received thereto; a switching element driven by the pulse and intermittently applying a voltage to a primary side of a piezoelectric transformer; a frequency-divide ratio instructing unit holding a frequency-divide ratio instruction value of a real number having an integer part and an fractional part; a binarization unit binarizing the frequency-divide ratio instruction value into two different integer frequency-divide ratios and selectively outputting the frequency-divide ratios. The binarization unit adjusts an appearance ratio of the frequency-divide ratios such that an average of the frequency-divide ratios output from the binarization unit is equal to an average of the frequency-divide ratio instruction value.
摘要翻译：一种压电变压器驱动装置，包括：振荡器; 分频器通过将来自振荡器的时钟信号除以接收到的分频比来输出脉冲; 由脉冲驱动并间断地向压电变压器的初级侧施加电压的开关元件; 分频比指令单元，其保持具有整数部分和小数部分的实数的分频比指令值; 二值化单元将分频比指令值二值化为两个不同的整数分频比，并选择性地输出分频比。二值化单元调整分频比的出现比，使得从二值化单元输出的分频比的平均值等于分频比指令值的平均值。

2. 发明申请

US20100104313A1 POWER SOURCE DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：电源设备和图像形成装置
公开(公告)号：US20100104313A1
公开(公告)日：2010-04-29
申请号：US12604473
申请日：2009-10-23
申请人： Toru KOSAKA , Masao YAJI , Akira HAGIWARA
发明人： Toru KOSAKA , Masao YAJI , Akira HAGIWARA
IPC分类号： G03G15/00 , H02M5/00
CPC分类号： G03G15/1675 , G03G15/80
摘要： A power source device includes an oscillator generating a clock, a frequency division unit dividing the clock to output a pulse, a sequence generation unit generating sequences “N” with respect to each switching of the pulse, a frequency division ratio setting unit setting frequency division ratio, a switching element driven by the pulse, and a piezoelectric transformer outputting alternating high voltage from a secondary-side when a primary-side is applied with voltage. The generated sequence and the set frequency division ratio are compared to output the pulses of fractional-M, −M+1 frequencies. An average frequency division ratio of the pulses of fractional-M, −M+1 frequencies determined by (M×α)+(M+1)×β/(α+β), where α and β respectively represent the number of pulses of “M” and “M+1” per unit time. The average frequency division ratio and frequency division ratio become equal at a sequence generation cycle and approximated in a period shorter than the sequence generation cycle.
摘要翻译：电源装置包括产生时钟的振荡器，对时钟进行分频以输出脉冲的序列生成部，相对于脉冲的切换产生序列“N”，分频比设定部设定分频比率，由脉冲驱动的开关元件，以及当初级侧施加电压时从次级侧输出交替高压的压电变压器。将产生的序列和设定的分频比进行比较以输出分数M，-M + 1个频率的脉冲。（M×α）+（M + 1）×＆bgr; /（α+＆bgr））确定的分数M，-M + 1频率的脉冲的平均分频比，其中α和＆分别表示每单位时间的“M”和“M + 1”的脉冲数。平均分频比和分频比在序列生成周期变得相等，并且在比序列生成周期短的时段内近似。

3. 发明申请

US20100202794A1 POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US20100202794A1
公开(公告)日：2010-08-12
申请号：US12703242
申请日：2010-02-10
申请人： Toru KOSAKA , Akira HAGIWARA
发明人： Toru KOSAKA , Akira HAGIWARA
IPC分类号： G03G15/00 , H02M7/06
CPC分类号： G03G15/043 , G03G15/0409
摘要： A power supply device includes: an oscillator configured to output a clock signal; a pulse output unit configured to output a pulse by dividing the frequency of the clock signal; a switching element driven by the pulse; a piezoelectric transformer configured to intermittently receive a voltage from the switching element and to output a high alternating current voltage; a rectifier configured to convert the high alternating current voltage to a high direct current voltage; an output voltage conversion unit configured to convert the high direct current voltage to a low direct current voltage; a target setter configured to output a target value; and a comparison unit configured to compare the low direct current voltage with the target value and to output a comparison result. A frequency division ratio of the pulse is controlled according to the comparison result, and thereby is changed so as to obtain the target value.
摘要翻译：电源装置包括：振荡器，被配置为输出时钟信号; 脉冲输出单元，被配置为通过划分所述时钟信号的频率来输出脉冲; 由脉冲驱动的开关元件; 压电变压器，被配置为间歇地接收来自所述开关元件的电压并输出高交流电压; 整流器，被配置为将高交流电压转换成高直流电压; 输出电压转换单元，被配置为将高直流电压转换成低直流电压; 配置为输出目标值的目标设定器; 以及比较单元，被配置为将低直流电压与目标值进行比较并输出比较结果。根据比较结果控制脉冲的分频比，从而改变以获得目标值。

4. 发明申请

US20130045023A1 HIGH-VOLTAGE POWER-SUPPLY APPARATUS, AND IMAGE FORMATION APPARATUS 有权
标题翻译：高压供电装置和图像形成装置
公开(公告)号：US20130045023A1
公开(公告)日：2013-02-21
申请号：US13584891
申请日：2012-08-14
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： G03G15/00 , H02M3/335
CPC分类号： G03G15/80 , H02M3/33515 , Y02B70/1433
摘要： A high-voltage power-supply apparatus comprises a controller configured to output a control signal containing a pulse with a variable drive frequency; a switching unit configured to be switched by the control signal and output a drive signal; a piezoelectric transducer having a predetermined resonant frequency, and configured to be driven by the drive signal and output a high-voltage output voltage; a current detector configured to detect an electric current of a load connected to an output side of the piezoelectric transducer and output a current-detection result; and a lower-limit-value setup unit configured to set a frequency lower limit value for the drive frequency of the controller. The controller is configured to vary the frequency lower limit value in accordance with the current-detection result.
摘要翻译：高压电源装置包括：控制器，被配置为输出包含具有可变驱动频率的脉冲的控制信号; 开关单元，被配置为通过所述控制信号切换并输出驱动信号; 压电换能器，其具有预定的谐振频率，并被配置为由驱动信号驱动并输出高压输出电压; 电流检测器，被配置为检测连接到所述压电换能器的输出侧的负载的电流并输出电流检测结果; 以及下限值设定单元，被配置为设定所述控制器的驱动频率的频率下限值。控制器被配置为根据当前检测结果改变频率下限值。

5. 发明申请

US20120327689A1 POWER SUPPLY, IMAGE FORMING DEVICE, AND PIEZOELECTRIC TRANSDUCER CONTROL METHOD 有权
标题翻译：电源，图像形成装置和压电传感器控制方法
公开(公告)号：US20120327689A1
公开(公告)日：2012-12-27
申请号：US13527019
申请日：2012-06-19
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： H02M3/335
CPC分类号： G03G15/80
摘要： A power supply with a digital control circuit generates an output voltage by driving a piezoelectric transducer with an alternating current voltage at a digitally controlled driving frequency. To skip over a spurious frequency, the driving frequency is switched between a first range above the spurious frequency and a second range below the spurious frequency. Within the first and second ranges, the driving frequency is varied in directions that make the output voltage track a target voltage. If the driving frequency arrives at the lower limit of the first range, it jumps to a switchover frequency in the second range. The first range can be used to generate a comparatively low output voltage, and the second range to generate a comparatively high output voltage.
摘要翻译：具有数字控制电路的电源通过以数字控制的驱动频率驱动具有交流电压的压电换能器来产生输出电压。为了跳过杂散频率，驱动频率在杂散频率之上的第一范围和低于寄生频率的第二范围之间切换。在第一和第二范围内，驱动频率在使输出电压跟踪目标电压的方向上变化。如果驱动频率达到第一范围的下限，则跳转到第二范围内的切换频率。第一范围可以用于产生比较低的输出电压，而第二范围可以用于产生比较高的输出电压。

6. 发明申请

US20120321338A1 POWER SUPPLY DEVICE AND IMAGE FORMATION APPARATUS 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US20120321338A1
公开(公告)日：2012-12-20
申请号：US13526664
申请日：2012-06-19
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： G03G15/00 , G05F1/10
CPC分类号： G03G15/5004
摘要： A power supply device includes a voltage output unit configured to output a DC voltage corresponding to a control signal from a first controller and an output evaluator configured to perform a judgment process of judging whether or not the DC voltage is a voltage corresponding to a set value received from the fist controller, and to output a result of the judgment to the first controller. The output evaluator includes a storage for storing correspondence information which shows a correspondence relationship between the set value and a voltage value of the DC voltage outputted from the voltage output unit. The output evaluator performs the judgment process by outputting the correspondence information to the first controller, and receiving a set value determined on the basis of the correspondence information from the first controller.
摘要翻译：电源装置包括：电压输出单元，被配置为输出与来自第一控制器的控制信号相对应的DC电压;以及输出评估器，被配置为执行判断过程，判断过程是否直流电压是对应于设定值的电压从第一控制器接收，并将判断结果输出到第一控制器。输出评估器包括用于存储对应信息的存储器，其显示设定值与从电压输出单元输出的直流电压的电压值之间的对应关系。输出评估器通过将对应信息输出到第一控制器来执行判断处理，并且接收基于来自第一控制器的对应信息确定的设定值。

7. 发明申请

US20120328322A1 PIEZOELECTRIC TRANSDUCER DRIVER, POWER SUPPLY DEVICE, AND IMAGE FORMATION APPARATUS 有权
标题翻译：压电传感器驱动器，电源装置和图像形成装置
公开(公告)号：US20120328322A1
公开(公告)日：2012-12-27
申请号：US13530205
申请日：2012-06-22
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： G03G15/00 , H01L41/107
CPC分类号： G03G15/80 , H01L41/042
摘要： A piezoelectric transducer driver configured to drive a piezoelectric transducer for converting an inputted alternating-current voltage, includes: a drive circuit configured to generate the alternating-current voltage to be inputted into the piezoelectric transducer; a frequency controller configured to control a frequency of the alternating-current voltage as a drive frequency to be applied to the piezoelectric transducer; and a pulse generation circuit configured to generate a drive pulse having a switching frequency corresponding to the drive frequency, and to output the drive pulse to the drive circuit. The drive circuit includes a switching element configured to generate the alternating-current voltage by executing a switching operation corresponding to a pulse width of the drive pulse, and the pulse generation circuit changes the pulse width depending on the switching frequency.
摘要翻译：一种被配置为驱动用于转换输入的交流电压的压电换能器的压电换能器驱动器，包括：驱动电路，被配置为产生要输入到压电换能器的交流电压; 频率控制器，其被配置为将所述交流电压的频率控制为施加到所述压电换能器的驱动频率; 以及脉冲发生电路，被配置为产生具有与驱动频率对应的开关频率的驱动脉冲，并将驱动脉冲输出到驱动电路。驱动电路包括：开关元件，被配置为通过执行与驱动脉冲的脉冲宽度对应的开关操作来产生交流电压，并且脉冲发生电路根据开关频率来改变脉冲宽度。

8. 发明申请

US20120323383A1 POWER SUPPLY APPARATUS AND IMAGE FORMATION APPARATUS 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US20120323383A1
公开(公告)日：2012-12-20
申请号：US13524009
申请日：2012-06-15
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： G06F1/26
CPC分类号： G06F1/26 , G06Q50/06 , H02J3/00
摘要： A power supply apparatus includes an arithmetic unit configured to successively update a N-bit division ratio at every step whose processing timing is managed by a timer, by adding or subtracting of preset data read from a data memory to or from the N-bit division ratio in accordance with a comparative output. An arithmetic unit performs an arithmetic operation to make a feedback data value approach a target data value by a negative feedback control, the arithmetic operation using, as the preset data, data read from the address specified by data with a predetermined bit width of M (M
摘要翻译：一种电源装置，包括运算单元，被配置为通过将从数据存储器读取的预置数据相加或相减从N位分割相加或相减来连续更新处理定时由定时器管理的每一步的N位分频比比例根据比较输出。算术单元进行算术运算，使反馈数据值通过负反馈控制接近目标数据值，算术运算使用作为预设数据的数据，该数据从预定位宽M的数据指定的地址读取（ M

9. 发明申请

US20110051466A1 POWER UNIT AND IMAGE FORMING APPARATUS 有权
标题翻译：电源单元和图像形成装置
公开(公告)号：US20110051466A1
公开(公告)日：2011-03-03
申请号：US12861975
申请日：2010-08-24
申请人： Toru KOSAKA
发明人： Toru KOSAKA
IPC分类号： H02M3/335 , G03G15/00
CPC分类号： H02M3/335 , G03G15/80 , H01L41/044
摘要： A power unit includes: a frequency divider to divide a clock signal in a second frequency-division ratio based on a first frequency-division ratio and to output a driving pulse; a switching device driven by the driving pulse; a piezoelectric transformer to output an alternating-current high voltage when receiving an intermittent voltage from the switching device; a comparison device to compare a digital signal corresponding to the piezoelectric transformer output voltage with a target voltage and to output a comparison result; a controller to control the first frequency-division ratio based on the comparison result; a first holding device to hold the controlled first frequency-division ratio; a first computing device to determine the second frequency-division ratio by performing computation using a first correction value and the first frequency-division ratio held by the first holding device; and a second holding device to hold the second frequency-division ratio determined by the first computing device.
摘要翻译：功率单元包括：分频器，用于基于第一分频比以第二分频比划分时钟信号并输出驱动脉冲; 由驱动脉冲驱动的开关装置; 压电变压器，当从所述开关装置接收到间歇电压时，输出交流高电压; 比较装置，用于将对应于压电变压器输出电压的数字信号与目标电压进行比较并输出比较结果; 基于比较结果控制第一分频比的控制器; 第一保持装置，用于保持受控的第一分频比; 第一计算装置，通过使用由所述第一保持装置保持的第一校正值和所述第一分频比进行计算来确定所述第二分频比; 以及第二保持装置，用于保持由第一计算装置确定的第二分频比。

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