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31. 发明专利

JPH08293329A DETERIORATION JUDGING METHOD FOR SECONDARY BATTERY, AND DETERIORATION JUDGING CIRCUIT 失效
公开(公告)号：JPH08293329A
公开(公告)日：1996-11-05
申请号：JP9497295
申请日：1995-04-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKENO KAZUHIKO , YAMAZAKI MIKIO , MUROYAMA SEIICHI
IPC分类号： G01R31/36 , H01M10/48 , H02J7/00
摘要： PURPOSE: To simplify a deterioration measuring system by comparing the end- to-end voltage of a set battery in trickle charging with a standard voltage, and judging a deterioration in the stage where the end-to-end voltage of the set battery reaches the standard voltage or more. CONSTITUTION: Both ends of a set battery 1a having M-pieces of secondary batteries connected in series is connected to a constant current charging circuit 2a, and charged with a fine current. The positive electrode side of the set battery 1a is connected to one input terminal of a comparator 4a, and the other input terminal of the comparator 4a to a standard voltage 3a. The standard voltage 3a is set to the end-to-end voltage in a battery capacity where a deterioration is judged on the basis of the relation between the preliminarily measured voltage between both ends of the set battery 1a in trickle charging and the battery capacity of the set battery 1a reduced by the deterioration. The trickle charging of the set battery 1a is continued, and in the stage where the terminal voltage reaches the standard voltage or more, the comparator 4a is reversed, and a deterioration signal is outputted to a display circuit 5a to display the deterioration.

32. 发明专利

JPH08182325A POWER SOURCE WITH BACKUP BATTERY 失效
公开(公告)号：JPH08182325A
公开(公告)日：1996-07-12
申请号：JP31786594
申请日：1994-12-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： YAMAZAKI MIKIO , MUROYAMA SEIICHI , TAKENO KAZUHIKO
IPC分类号： H02J7/00 , H02M7/06
摘要： PURPOSE: To provide a power source with backup battery which is improved in economy and convenience by packing a residual capacity displaying circuit or charging circuit which becomes necessary depending upon the kind of a battery with a battery and electrically connecting a power source circuit section with a battery pack. CONSTITUTION: In a DC power source which is provided with an AC input terminal 1, rectifying section 2, DC output terminal 6, and reverse-current preventing diode 3 and outputs DC power after converting an AC input into the DC power, outside connecting terminals 31, 32, and 33 are respectively provided to the anode and cathode of the diode 3 and one of the DC output terminals of the rectifying section 2 which is not connected with the diode 3 and a battery pack 30 incorporating a primary battery 10 or secondary battery is connected to the terminals 31, 32, and 33.

33. 发明专利

JPH0351138B2 失效
公开(公告)号：JPH0351138B2
公开(公告)日：1991-08-05
申请号：JP17558280
申请日：1980-12-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MUROYAMA SEIICHI , SAKAKIBARA KAZUHIKO
IPC分类号： H02M1/06 , H03K17/04 , H03K17/732

34. 发明专利

JPH0274160A AC POWER SUPPLY 失效
公开(公告)号：JPH0274160A
公开(公告)日：1990-03-14
申请号：JP22598788
申请日：1988-09-09
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MUROYAMA SEIICHI , AOKI CHUICHI , KENMOCHI YOSHITAKA , ICHIKAWA OSAMU
IPC分类号： H02M5/20
摘要： PURPOSE:To contrive to increase the efficiency of an apparatus and miniaturize said apparatus by causing oscillator circuits respectively controlling a high-frequency power supply and a pulse width modulation circuit to perform said control on the basis of respective signal sources different from each other without setting the ratio of the oscillation frequency of one of said two oscillator circuits to that of another thereof at an integer. CONSTITUTION:A high-frequency power circuit 10 is controlled from a first oscillator circuit 38 via a driver circuit 36. A pulse-width modulation signal circuit 32 operates simultaneously with a second oscillator circuit 39. A positive and negative signal generator circuit 35 also operates simultaneously with the second oscillator circuit 39. That is, a sine-wave generator 32-1 and a carrier triangular-wave generator 32-2 operate simultaneously with the oscillator circuit 39 so that a pulse-width modulation signal V3' is inputted to a synchronizing pulse-width modulation signal generator circuit 33. The output of said synchronizing pulse-width modulation circuit 33 is inputted to a switching decision logical circuit 34 and is changed in polarity by a polarity switching circuit via a driver circuit 37. Because the number of phases of said first oscillator circuit 38 is not an integer multiple of that of said second oscillator circuit 39, the phase difference between said two circuits changes always to enable a linear control.

35. 发明专利

JPS6477436A FEEDING SYSTEM 失效
公开(公告)号：JPS6477436A
公开(公告)日：1989-03-23
申请号：JP23355587
申请日：1987-09-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIZUGUCHI KENICHI , OGATA TSUTOMU , MUROYAMA SEIICHI , UDEKI OSAMU
IPC分类号： H02J9/06
摘要： PURPOSE:To share an earth for frame of a power device for common use with an earth for communication, by separating a commercial power source in case AC power system is earthed, and by feeding the current from an isolated neutral or high-resistance earthed neutral auxiliary power source. CONSTITUTION:When a commercial power source 1 is normal, the power is supplied to a communication system through an earth leakage breaker 9, a switching device 3 and a power device 4. When the commercial power source 1 is interrupted, a battery 5 discharges the current until the auxiliary power source 2 gets to leading. Then the current is fed to the communication system through the switching device 3 and the power device 4. In case earthing occurs in the power device, the earth leakage breaker 9 actuates to separate the commercial power source 1 just as in the same operation as in the interruption of service to the commercial power source 1. The output of the auxiliary power source 2 being isolated neutral or high-resistance earthed neutral, no appreciable leakage current will flow.

36. 发明专利

JPS5911267B2 JPS5911267B2 - 失效
公开(公告)号：JPS5911267B2
公开(公告)日：1984-03-14
申请号：JP11937774
申请日：1974-10-18
申请人： Nippon Telegraph & Telephone
发明人： SEKINO YOSHIHIRO , MUROYAMA SEIICHI
IPC分类号： H02M7/521 , H02M7/515

37. 发明专利

JPS56112886A SERIAL RESONANT CONVERTER 失效
公开(公告)号：JPS56112886A
公开(公告)日：1981-09-05
申请号：JP1305380
申请日：1980-02-07
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MUROYAMA SEIICHI , IWAZAWA MASAKI
IPC分类号： H02M3/135 , H02M7/48 , H02M7/515
摘要： PURPOSE:To narrow the range of change in operating frequency in relation to load current by connecting the 2nd serial resonant circuit in parallel to the terminal on the AC side of an output rectifying circuit and by selecting the resonant frequency thereof to be lower than that of the 1st serial resonant circuit. CONSTITUTION:To the 1st resonant circuit connecting serially a capacitor 4 for resonance, a reactor 3 for resonance and the terminal on the AC side of the rectifying circuit 5 and to the terminal on the AC side of the rectifying circuit 5 of the serial resonant converter consisting of switching elements S1 and S2 and of DC power sources 1 and 2 is connected serially the 2nd resonant circuit 10 consisting of a reactor 11 and a capacitor 12, and the resonant frequency thereof is selected to be lower than that of the 1st resonant circuit. Therefore, the range of the change in the operating frequency in relation to the load current becomes narrow, whereby the output voltage can be controlled by slightly changing the operating frequency and the serial resonant converter can be operated outside an audio region.

38. 发明专利

JPS51148335A MEMORY CIRCUIT 失效
公开(公告)号：JPS51148335A
公开(公告)日：1976-12-20
申请号：JP7205175
申请日：1975-06-16
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SEKINO YOSHIHIRO , MUROYAMA SEIICHI
IPC分类号： H03K17/735 , G11C11/39 , G11C11/41
摘要： PURPOSE:Control display sequence by changing biases in sequence indication circuits which use PUTs.

39. 发明专利

JPS5158624A 失效
公开(公告)号：JPS5158624A
公开(公告)日：1976-05-22
申请号：JP13204174
申请日：1974-11-18
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SEKINO YOSHIHIRO , MUROYAMA SEIICHI
IPC分类号： H02P27/06 , H02M7/515

40. 发明专利

JPH1042564A AC-DC CONVERTER 失效
公开(公告)号：JPH1042564A
公开(公告)日：1998-02-13
申请号：JP18753096
申请日：1996-07-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKEUCHI AKIRA , OTSU SATOSHI , MUROYAMA SEIICHI
IPC分类号： H02M7/162 , H02M1/08 , H02M7/12 , H02M7/155
摘要： PROBLEM TO BE SOLVED: To reduce the number of switching elements and provide current waveform control for respective AC phases, by using a three-phase full-bridge circuit consisting of an arm constituted of a serial circuit of a switch and a capacitor. SOLUTION: Switches 31, 32 and 33 are double-throw switches constituted of two switches, and are turned on sequentially. The order of turning on and off period can be set freely, and the current ripple of an inductor 61 can be decreased if it is made in an even switching sequence. The amplitude of a flux density in a transformer 4 can be decreased if it is made in a switching sequence, by which on-period of a phase whose absolute voltage value is the highest is divided to generate positive and negative voltages alternately into the winding of the transformer 4. In the respective on-periods, based on the phase of a three-phase AC power source 1, a switching element 52 is turned off, if the winding voltage of the transformer 4 is positive, and a switching element 51 is turned off, if the winding voltage of the transformer 4 is negative.

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