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1. 发明专利

JPS61262821A SYSTEM FOR CONTROLLING POWER SOURCE OUTPUT 失效
公开(公告)号：JPS61262821A
公开(公告)日：1986-11-20
申请号：JP10351485
申请日：1985-05-15
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： KUWATA YUTAKA , SAKAKIBARA KAZUHIKO , SUZUKI YOSHIO , SAITO RYOJI , SENOO KAZUHIRO , KII YASUO
IPC分类号： H02J1/10 , G05F1/00 , G05F1/10
摘要： PURPOSE:To obtain an efficient and stable control system by outputting and controlling each output voltage in a constant voltage control range with the aid of a detection current signal available from detecting the outputs of DC power sources when the outputs of the power sources obtained by connecting and running plural DC power sources in parallel are controlled. CONSTITUTION:After output currents I and I' detected by current detectors 3 and 3' are converted into voltages by converters 4 and 4', they are supplied to adders 5 and 5' and added to output voltages. The added outputs are supplied to error amplifiers 7 and 7', and compared with reference voltages 6 and 6', after which they are supplied as control signals to control circuits 8 and 8'. Their output signals control the conduction of main circuits 9 and 9' to obtain constant voltage outputs.

2. 发明专利

JPH08308133A FEEDING DEVICE FOR TRANSMITTER 失效
公开(公告)号：JPH08308133A
公开(公告)日：1996-11-22
申请号：JP12906995
申请日：1995-04-28
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： IINO YASUHIRO , SENOO KAZUHIRO , SUZUKI NOBORU , FUKUDA YOSHIFUMI
IPC分类号： H02J7/00 , H02J7/04 , H02J7/34
摘要： PURPOSE: To improve the reliability of a feeding device for transmitter which is incorporated with a backup battery and corrects the temperature dependency of the battery by enabling the device to issue an alarm signal when its temperature detector gets out of order. CONSTITUTION: In a feeding device 6 which supplies a constant voltage to a load while the device 6 charges a battery 5 by means of a power unit 3, a thermistor 4 detects the temperature of the battery 5 and a control circuit 2 corrects the temperature characteristic of the battery 5. The voltage of the battery 5 is maintained at a constant level when the temperature of the battery 5 is equal to or lower than a room temperature or at a downward gradient when the temperature falls with a range from the room temperature to the highest ambient temperature so as to prevent the occurrence of a thermal trip. A warning circuit 8 is actuated when the open-circuit failure or short-circuit failure of the thermistor 4 is detected.

3. 发明专利

JPS6216073A POWER CONVERTER 失效
公开(公告)号：JPS6216073A
公开(公告)日：1987-01-24
申请号：JP15151785
申请日：1985-07-10
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： KII YASUO , KUWATA YUTAKA , SHIBUYA RYOJI , SENOO KAZUHIRO
IPC分类号： H02M3/28 , H02M3/155 , H02M3/335
摘要： PURPOSE:To conduct control by detecting currents for a power converter precisely by adding a detecting current integrating circuit and a switching circuit clearing the integrating value of the detecting current integrating circuit while synchronizing with the operating frequency of an inverter section to a current detecting circuit. CONSTITUTION:DC voltage from input terminals 1, 2 is lead out of output terminals 5, 6 through an inverter section 3 and a rectifying smoothing circuit 4. A current detecting circuit 9 detects the input currents of the inverter section 3, and transmits an output from the inverter section 3 over a control section 8 through a comparator 11. The control section 8 drives the inverter section 3 through a driving circuit 10. In the current detecting circuit 9, a resistor 9C and a capacitor 9D constitute a detecting current integrating circuit, and a switch 9E also functioning as a transistor synchronizes the integrating value of the capacitor 9D with the operating frequency of the inverter section 3 and clears it.

4. 发明专利

JPH0576267B2 失效
公开(公告)号：JPH0576267B2
公开(公告)日：1993-10-22
申请号：JP12837686
申请日：1986-06-03
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI YOSHIO , KUWATA YUTAKA , SENOO KAZUHIRO
IPC分类号： H02M3/28

5. 发明专利

JPS62285662A POWER CONVERTER 失效
公开(公告)号：JPS62285662A
公开(公告)日：1987-12-11
申请号：JP12837686
申请日：1986-06-03
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI YOSHIO , KUWATA YUTAKA , SENOO KAZUHIRO
IPC分类号： H02M3/28
摘要： PURPOSE:To limit currents flowing through an inductor without varying reference oscillation frequency, and to prevent overcurrents in case of a deep drooping by operating a switching element by reference oscillation frequency for some period and stopping the switching element for some period. CONSTITUTION:The peak value of currents flowing through an inductor 6 detected by a current detector 16 does not reach the first reference value of a comparison circuit 14 under a stationary state. Consequently, a control signal from a control circuit 11 is inputted to a drive circuit 12, and the drive circuit 12 drives a transistor 3. When the short circuit, etc. of an output are generated and the peak value of currents flowing through the inductor 6 detected by the current detector 16 reaches the first reference value of the comparison circuit 14, a stop-signal generation circuit 13 outputs a stop signal to the drive circuit 12, and the drive circuit 12 stops the drive of the transistor 3. When currents detected by the current detector 16 reach the second reference value of the comparison circuit 14, the drive circuit 12 drives the transistor 3 again.

6. 发明专利

JPS6216066A OUTPUT DROOPING METHOD FOR POWER CONVERTER 失效
公开(公告)号：JPS6216066A
公开(公告)日：1987-01-24
申请号：JP15151585
申请日：1985-07-10
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： SUZUKI YOSHIO , KUWATA YUTAKA , MUROYAMA SEIICHI , ASAMI SHINICHIRO , SAITO RYOJI , SENOO KAZUHIRO
IPC分类号： H02M3/155 , H02M3/00 , H02M3/156 , H02M3/28
摘要： PURPOSE:To reduce a ripple component amount by lowering the reference voltage of a DC output voltage detection system in response to the magnitude of a signal corresponding to a difference between a detecting signal levelled in response to output currents and a set level when the detecting signal exceeds the set level. CONSTITUTION:An output from an AC power supply 1 is lead out as a DC output through a rectifying circuit 2, a filter circuit 3, a transformer 5 for converting power, a rectifying circuit 7 and a filter circuit 8. DC output currents rectified and levelled by the rectifying circuit 7 and the filter circuit 8 are detected by a current detecting means 19, an output from the means 19 is inputted to an operational amplifier 20, and the reference voltage of a DC output voltage detection system variable reference power supply 14 is varied by an output from the operational amplifier 20. That is, when a current detecting signal exceeds a set level, reference voltage is lowered in response to the magnitude of a signal corresponding to a difference between the current detecting signal and the set level.

7. 发明专利

JPH0438173A RESONANCE CONVERTER 失效
公开(公告)号：JPH0438173A
公开(公告)日：1992-02-07
申请号：JP14246690
申请日：1990-05-31
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE
发明人： ITO MIKIO , SENOO KAZUHIRO , KII YASUO , SUZUKI YOSHIO , OHASHI YASUO , KUWATA YUTAKA
IPC分类号： H02M3/28 , H02M3/335
摘要： PURPOSE:To realize a low inductance with the title converter by respectively connecting the primary and secondary windings of a plurality of transformers in parallel with each other and, at the same time, forming a serial resonance circuit of an integrated leakage inductor and capacitors. CONSTITUTION:The connecting midpoints of capacitors 21 and 22 and field effect transistors 31 and 32 are respectively used as nodes 81 and 82. The primary windings 41, 51, and 61 of transformers 4, 5, and 6 are connected with each other through leakage inductances 42, 52, and 62, respectively, between the nodes 81 and 82. The secondary windings of the transformers 4, 5, and 6 are connected in parallel with each other by means of nodes 91, 92, and 93, respectively. Both of the nodes 91 and 93 are connected to a capacitor 73 through diodes 71 and 72, respectively. Since each leakage inductance is one element of a serial resonance circuit, they show high impedances against the operating frequency of this converter by their resonance operations and their effects as a current balancer becomes larger in the parallel state.

8. 发明专利

JPH02294225A POWER SUPPLY EQUIPMENT HAVING BREAKING FUNCTION 失效
公开(公告)号：JPH02294225A
公开(公告)日：1990-12-05
申请号：JP11545989
申请日：1989-05-09
申请人： ORIGIN ELECTRIC , NIPPON TELEGRAPH & TELEPHONE , SHINDENGEN ELECTRIC MFG
发明人： SUZUKI YOSHIO , ITO MIKIO , SENOO KAZUHIRO , OHASHI YASUO , KUWATA YUTAKA , KIKUCHI YOSHIHIKO , OZU KIYOTSUGU
IPC分类号： H02J1/10 , H02J1/00
摘要： PURPOSE:To prevent hunting by judging the polarity of a voltage between source and drain corresponding to the value of a current flowing to MOSFET and by controlling via AND function a driving signal to be forwardly biased at a given current value or more. CONSTITUTION:At the time of an abnormal DC power supply 8, a current flowing from the source of MOSFETs 5, 17 toward the drain thereof approaches zero and the voltage drop between said source and drain decreases too. Then, a first driving signal is not generated from a given current value as a boundary and said MOSFETs 5, 17 are cut OFF. Accordingly, the current flows to a parasitic diode, the voltage drop between the source and drain becomes larger and the MOSFETs are going to be turned ON again by the first driving signal. However, when said ON is delayed a little by the use of a capacity between gate and source, a drain terminal voltage rises to a high state so that said MOSFETs 5, 17 are not turned ON even by the driving signal so as to retain the cut-OFF state. At the time of starting, said MOSFETs 5, 17 are controlled by a second driving signal. Consequently, it is possible to prevent hunting.

9. 发明专利

JPH0327768A CONTROL METHOD FOR RESONANT DC-DC CONVERTOR 失效
公开(公告)号：JPH0327768A
公开(公告)日：1991-02-06
申请号：JP16241489
申请日：1989-06-23
申请人： ORIGIN ELECTRIC
发明人： SAITO RYOJI , SENOO KAZUHIRO , ITO MIKIO
IPC分类号： H02M3/28 , H02M3/335
摘要： PURPOSE:To remove power loss by performing the charge and discharge of the parasitic capacitor of a switching semiconductor element by the accumulated electromagnetic energy of inductance. CONSTITUTION:A resonant DC-DC convertor is constituted of main MOSFET switches 3 and 4, resonant capacitors 9 and 10, an resonant inductor 13, a transformer 14, a rectifying circuit 29, etc., and this supplies power to a load 21. Moreover, this is equipped with voltage monitoring circuits 15 and 16 for the main switches 3 and 4, driving circuits 17 and 18, a controller 20, and a voltage detection circuit. The energies of a parasitic capacitors 5 and 6 of the main switches 3 and 4 are supplied by the energy accumulated in an inductor 13.

10. 发明专利

JPS6173576A Power converter 失效
标题翻译：电源转换器
公开(公告)号：JPS6173576A
公开(公告)日：1986-04-15
申请号：JP19419184
申请日：1984-09-17
申请人： Nippon Telegr & Teleph Corp , Origin Electric Co Ltd
发明人： SENOO KAZUHIRO , KUWATA YUTAKA , SHIBUYA RYOJI , KII YASUO
IPC分类号： H02M3/338 , H02M3/335
CPC分类号： H02M3/335
摘要： PURPOSE:To prevent a high voltage from inducing at an output winding side by turning ON a shortcircuiting semiconductor switch during the OFF period of a drive switch, and preventing the output winding side from opening when a current is flowed to the current feedback winding of a current transformer. CONSTITUTION:A main circuit current flowed through a main switching semicon ductor element 1 is flowed as a reverse bias current through a current trans former 4 to the element 1 when the element 1 is turned OFF. The secondary side of the transformer 4 is shortcircuited by a shortcircuiting semiconductor switch 16 until the element 1 is turned OFF.
摘要翻译：目的：为了防止在驱动开关的断开期间接通短路半导体开关而在输出绕组侧产生高电压，并且当电流流向电流反馈绕组的电流反馈绕组时，防止输出绕组侧断开电流互感器。构成：当元件1断开时，流过主开关半导体元件1的主电路电流作为反向偏置电流通过电流变换器4流到元件1。变压器4的次级侧由短路半导体开关16短路，直到元件1断开。

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