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1. 发明授权

US07425789B2 Power supply apparatus, and image forming apparatus having the same 有权
标题翻译：电源装置和具有该电源装置的图像形成装置
公开(公告)号：US07425789B2
公开(公告)日：2008-09-16
申请号：US11275636
申请日：2006-01-20
申请人： Kouji Yasukawa , Hiroshi Mano , Atsuhiko Yamaguchi , Osamu Nagasaki
发明人： Kouji Yasukawa , Hiroshi Mano , Atsuhiko Yamaguchi , Osamu Nagasaki
IPC分类号： H01L41/107
CPC分类号： H01L41/044 , G03G15/80
摘要： A power supply apparatus includes a piezoelectric transformer which outputs a voltage, a voltage-controlled oscillator which controls the frequency of an output signal in accordance with an input control signal, a power supply voltage supply element which is driven by a signal output from the voltage-controlled oscillator and applies a power supply voltage to the piezoelectric transformer, and an output voltage stop circuit (118) which outputs a signal for stopping driving the piezoelectric transformer on the basis of a control signal (Vcont).
摘要翻译：电源装置包括输出电压的压电变压器，根据输入控制信号控制输出信号的频率的压控振荡器，由从电压输出的信号驱动的电源电压供给元件控制振荡器，并向压电变压器施加电源电压;以及输出电压停止电路（118），其基于控制信号（Vcont）输出用于停止驱动压电变压器的信号。

2. 发明授权

US07265479B2 Power supply apparatus, and image forming apparatus having the same 有权
标题翻译：电源装置和具有该电源装置的图像形成装置
公开(公告)号：US07265479B2
公开(公告)日：2007-09-04
申请号：US11275635
申请日：2006-01-20
申请人： Atsuhiko Yamaguchi , Hiroshi Mano , Osamu Nagasaki , Kouji Yasukawa
发明人： Atsuhiko Yamaguchi , Hiroshi Mano , Osamu Nagasaki , Kouji Yasukawa
IPC分类号： H01L41/107
CPC分类号： H02M3/28 , G03G15/80 , H02M1/14 , H02M3/156 , H02M2001/008
摘要： In a power supply apparatus including a plurality of power supply circuits, each of the power supply circuits has a piezoelectric transformer, a rectification element which rectifies and smoothes a voltage output from the piezoelectric transformer in accordance with a load and outputs the voltage, a voltage-controlled oscillator which controls the frequency of an output signal in accordance with an input control signal, and a power supply voltage supply element which is driven by a signal output from the voltage-controlled oscillator and supplies a power supply voltage to the piezoelectric transformer. One power supply circuit includes a resonance frequency change unit which is connected to the output side of the piezoelectric transformer. The resonance frequency change unit drives the piezoelectric transformer of the power supply circuit at a driving frequency which is different from the driving frequency of the piezoelectric transformer in another power supply circuit by shifting the peak of the resonance frequency.
摘要翻译：在包括多个电源电路的电源装置中，每个电源电路具有压电变压器，整流元件，用于根据负载对从压电变压器输出的电压进行整流和平滑，并输出电压控制的振荡器，其根据输入控制信号控制输出信号的频率;以及电源电压供应元件，其由从压控振荡器输出的信号驱动并将电源电压提供给压电变压器。一个电源电路包括连接到压电变压器的输出侧的谐振频率改变单元。谐振频率改变单元通过使谐振频率的峰值偏移来驱动电源电路的压电变压器，该驱动频率与另一个电源电路中的压电变压器的驱动频率不同。

3. 发明申请

US20060273688A1 POWER SUPPLY APPARATUS, AND IMAGE FORMING APPARATUS HAVING THE SAME 有权
标题翻译：电源装置和具有该电源装置的图像形成装置
公开(公告)号：US20060273688A1
公开(公告)日：2006-12-07
申请号：US11275636
申请日：2006-01-20
申请人： KOUJI YASUKAWA , Hiroshi Mano , Atsuhiko Yamaguchi , Osamu Nagasaki
发明人： KOUJI YASUKAWA , Hiroshi Mano , Atsuhiko Yamaguchi , Osamu Nagasaki
IPC分类号： H01L41/107
CPC分类号： H01L41/044 , G03G15/80
摘要： A power supply apparatus includes a piezoelectric transformer which outputs a voltage, a voltage-controlled oscillator which controls the frequency of an output signal in accordance with an input control signal, a power supply voltage supply element which is driven by a signal output from the voltage-controlled oscillator and applies a power supply voltage to the piezoelectric transformer, and an output voltage stop circuit (118) which outputs a signal for stopping driving the piezoelectric transformer on the basis of a control signal (Vcont).
摘要翻译：电源装置包括输出电压的压电变压器，根据输入控制信号控制输出信号的频率的压控振荡器，由从电压输出的信号驱动的电源电压供给元件控制振荡器，并向压电变压器施加电源电压;以及输出电压停止电路（118），其基于控制信号（Vcont）输出用于停止驱动压电变压器的信号。

4. 发明授权

US07579749B2 Power supply device and image forming apparatus using the power supply device 失效
标题翻译：电源装置和使用该电源装置的成像装置
公开(公告)号：US07579749B2
公开(公告)日：2009-08-25
申请号：US11456049
申请日：2006-07-06
申请人： Hiroki Murata , Teruhiko Namiki , Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa
发明人： Hiroki Murata , Teruhiko Namiki , Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa
IPC分类号： H01L41/08
CPC分类号： H01L41/044 , G03G15/80
摘要： A power supply device generates an output voltage by driving a piezoelectric transformer using a frequency signal. The power supply device includes a comparison unit configured to compare an output voltage and a voltage setting signal that sets the output voltage, and a voltage control oscillation unit configured to generate the frequency signal to drive the piezoelectric transformer based on comparison results of the comparison unit. The voltage control oscillation unit generates the frequency signal within a range between the resonant frequency and a spurious resonant frequency closest to the resonant frequency.
摘要翻译：电源装置通过使用频率信号驱动压电变压器来产生输出电压。电源装置包括比较单元，其被配置为比较输出电压和设置输出电压的电压设置信号;以及电压控制振荡单元，其被配置为基于比较单元的比较结果来产生频率信号来驱动压电变压器。电压控制振荡单元在谐振频率和最接近谐振频率的寄生谐振频率之间的范围内产生频率信号。

5. 发明申请

US20060222398A1 POWER SUPPLY UNIT IN IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置中的电源单元
公开(公告)号：US20060222398A1
公开(公告)日：2006-10-05
申请号：US11275634
申请日：2006-01-20
申请人： Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa , Teruhiko Namiki , Hiroki Murata
发明人： Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa , Teruhiko Namiki , Hiroki Murata
IPC分类号： G03G15/00
CPC分类号： G03G15/80
摘要： A power supply unit in an image forming apparatus is provided. The power supply unit includes a piezoelectric transformer, an output voltage detecting circuit which detects the output voltage of the piezoelectric transformer, a comparator which receives an output voltage setting signal, together with an output voltage detecting signal fed back from the output voltage detecting circuit, to compare the output voltage setting signal and the output voltage detecting signal, and a driving frequency supplying circuit which generates the driving frequency of the piezoelectric transformer in accordance with a comparison result by the comparator, and supplies the resultant driving frequency to the piezoelectric transformer. The time constant of the output voltage setting signal is longer than the time constant of the output voltage detecting circuit.
摘要翻译：提供了图像形成装置中的电源单元。电源单元包括压电变压器，检测压电变压器的输出电压的输出电压检测电路，接收输出电压设定信号的比较器以及从输出电压检测电路反馈的输出电压检测信号，比较输出电压设定信号和输出电压检测信号;以及驱动频率提供电路，其根据比较器的比较结果生成压电变压器的驱动频率，并将得到的驱动频率提供给压电变压器。输出电压设定信号的时间常数大于输出电压检测电路的时间常数。

6. 发明授权

US07548708B2 Power supply unit in image forming apparatus 有权
标题翻译：图像形成装置中的电源单元
公开(公告)号：US07548708B2
公开(公告)日：2009-06-16
申请号：US11275634
申请日：2006-01-20
申请人： Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa , Teruhiko Namiki , Hiroki Murata
发明人： Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa , Teruhiko Namiki , Hiroki Murata
IPC分类号： G03G15/00 , H01L41/00
CPC分类号： G03G15/80
摘要： A power supply unit in an image forming apparatus is provided. The power supply unit includes a piezoelectric transformer, an output voltage detecting circuit which detects the output voltage of the piezoelectric transformer, an output voltage control circuit which controls an output voltage from the piezoelectric transformer, and includes a comparator which receives an output voltage setting signal, together with an output voltage detecting signal fed back from the output voltage detecting circuit, to compare the output voltage setting signal and the output voltage detecting signal. The power supply unit also includes a driving frequency supplying circuit which generates a driving frequency signal of the piezoelectric transformer in accordance with a comparison result by the comparator, and supplies the driving frequency signal to the piezoelectric transformer. The time constant of the output voltage control circuit is longer than the time constant of the output voltage detecting circuit.
摘要翻译：提供了图像形成装置中的电源单元。电源单元包括压电变压器，检测压电变压器的输出电压的输出电压检测电路，控制来自压电变压器的输出电压的输出电压控制电路，并包括接收输出电压设定信号的比较器与从输出电压检测电路反馈的输出电压检测信号一起比较输出电压设定信号和输出电压检测信号。电源单元还包括驱动频率提供电路，其根据比较器的比较结果产生压电变压器的驱动频率信号，并将驱动频率信号提供给压电变压器。输出电压控制电路的时间常数大于输出电压检测电路的时间常数。

7. 发明申请

US20070007855A1 POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS USING THE POWER SUPPLY DEVICE 失效
标题翻译：电源装置和使用电源装置的图像形成装置
公开(公告)号：US20070007855A1
公开(公告)日：2007-01-11
申请号：US11456049
申请日：2006-07-06
申请人： Hiroki Murata , Teruhiko Namiki , Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa
发明人： Hiroki Murata , Teruhiko Namiki , Osamu Nagasaki , Atsuhiko Yamaguchi , Tomohiro Nakamori , Takehiro Uchiyama , Kouji Yasukawa
IPC分类号： H01L41/09
CPC分类号： H01L41/044 , G03G15/80
摘要： A power supply device generates an output voltage by driving a piezoelectric transformer using a frequency signal. The power supply device includes a comparison unit configured to compare an output voltage and a voltage setting signal that sets the output voltage, and a voltage control oscillation unit configured to generate the frequency signal to drive the piezoelectric transformer based on comparison results of the comparison unit. The voltage control oscillation unit generates the frequency signal within a range between the resonant frequency and a spurious resonant frequency closest to the resonant frequency.
摘要翻译：电源装置通过使用频率信号驱动压电变压器来产生输出电压。电源装置包括比较单元，其被配置为比较输出电压和设置输出电压的电压设置信号;以及电压控制振荡单元，其被配置为基于比较单元的比较结果来产生频率信号来驱动压电变压器。电压控制振荡单元在谐振频率和最接近谐振频率的寄生谐振频率之间的范围内产生频率信号。

8. 发明授权

US09918393B2 Printed circuit board, power supply apparatus, image forming apparatus, and printed circuit board manufacturing method 有权
公开(公告)号：US09918393B2
公开(公告)日：2018-03-13
申请号：US13525168
申请日：2012-06-15
申请人： Osamu Nagasaki , Masamichi Iida , Hiroshi Mano
发明人： Osamu Nagasaki , Masamichi Iida , Hiroshi Mano
IPC分类号： H05K3/00 , H05K3/34 , H05K1/02 , H01L41/04 , H01L41/107
CPC分类号： H05K3/3468 , H01L41/04 , H01L41/107 , H05K1/0259 , H05K2201/10083 , H05K2203/044 , H05K2203/304 , Y10T29/42
摘要： A piezoelectric transformer includes a piezoelectric element. Two primary side electrodes exist on the primary side of the piezoelectric element. The primary side electrodes are coupled by a resistor formed from a conductive coating. A discharge current is discharged via the resistor to protect a semiconductor component from the discharge current. Since neither a short-circuit terminal nor conductive jig is required, electrostatic discharge damage to a semiconductor component can be prevented by a low-cost arrangement.

9. 发明授权

US08680827B2 High-voltage power supply apparatus and image forming apparatus employing same 有权
标题翻译：高压供电装置及其使用的图像形成装置
公开(公告)号：US08680827B2
公开(公告)日：2014-03-25
申请号：US12128270
申请日：2008-05-28
申请人： Osamu Nagasaki , Hiroshi Mano
发明人： Osamu Nagasaki , Hiroshi Mano
IPC分类号： G05F1/565 , G05F1/575
CPC分类号： G05F1/63
摘要： The voltage at a spurious frequency is decreased while maintaining as much as possible the voltage at a resonance frequency of a piezoelectric transformer, thus controlling a wide voltage range with a comparatively low cost configuration. A high-voltage power supply apparatus includes a piezoelectric transformer that outputs a highest voltage at a predetermined resonance frequency, and a generating unit that generates a signal that oscillates at a drive frequency that drives the piezoelectric transformer, throughout a frequency range that includes the resonance frequency. Furthermore, the high-voltage power supply apparatus includes an output terminal connected to the piezoelectric transformer, and a constant-voltage element inserted in a path that couples the piezoelectric transformer and the output terminal.
摘要翻译：在保持尽可能多的压电变压器的谐振频率处的电压的同时降低杂散频率处的电压，从而以较低的成本配置来控制宽的电压范围。一种高压电力供给装置，包括以预定的谐振频率输出最高电压的压电变压器，以及在包括谐振频率的整个频率范围内产生以驱动压电变压器的驱动频率振荡的信号的发电单元频率。此外，高压电源装置包括连接到压电变压器的输出端子和插入连接压电变压器和输出端子的路径中的恒压元件。

10. 发明申请

US20130004196A1 PRINTED CIRCUIT BOARD, POWER SUPPLY APPARATUS, IMAGE FORMING APPARATUS, AND PRINTED CIRCUIT BOARD MANUFACTURING METHOD 有权
标题翻译：印刷电路板，电源装置，图像形成装置和印刷电路板制造方法
公开(公告)号：US20130004196A1
公开(公告)日：2013-01-03
申请号：US13525168
申请日：2012-06-15
申请人： Osamu Nagasaki , Masamichi Iida , Hiroshi Mano
发明人： Osamu Nagasaki , Masamichi Iida , Hiroshi Mano
IPC分类号： G03G15/00 , H01L41/00 , H01L41/22
CPC分类号： H05K3/3468 , H01L41/04 , H01L41/107 , H05K1/0259 , H05K2201/10083 , H05K2203/044 , H05K2203/304 , Y10T29/42
摘要： A piezoelectric transformer includes a piezoelectric element. Two primary side electrodes exist on the primary side of the piezoelectric element. The primary side electrodes are coupled by a resistor formed from a conductive coating. A discharge current is discharged via the resistor to protect a semiconductor component from the discharge current. Since neither a short-circuit terminal nor conductive jig is required, electrostatic discharge damage to a semiconductor component can be prevented by a low-cost arrangement.
摘要翻译：压电变压器包括压电元件。在压电元件的一次侧存在两个初级侧电极。初级侧电极通过由导电涂层形成的电阻器耦合。通过电阻放电放电电流，以保护半导体元件免受放电电流的影响。由于不需要短路端子和导电夹具，因此可以通过低成本布置来防止对半导体部件的静电放电损坏。

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