WO1990002439A1 - Electrostatic transformer - Google Patents
Electrostatic transformer Download PDFInfo
- Publication number
- WO1990002439A1 WO1990002439A1 PCT/JP1989/000875 JP8900875W WO9002439A1 WO 1990002439 A1 WO1990002439 A1 WO 1990002439A1 JP 8900875 W JP8900875 W JP 8900875W WO 9002439 A1 WO9002439 A1 WO 9002439A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switch
- capacitor
- terminal
- closing
- opening
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
Definitions
- the present invention relates to an electrostatic transformer, and more particularly to an electrostatic transformer capable of electrically insulating an input side and an output side without using a transformer.
- conventional electrical equipment uses a transformer to electrically insulate its primary and secondary sides.
- the input side and the output side can be electrically insulated by the transformer.
- the transformer when a commercial power supply with one end grounded is connected to the primary side of the transformer, Whichever grounded, it can be widely used as a variety of power supplies without fear of short-circuit and electric shock.However, since it has a transformer, it not only makes the equipment heavier, but also produces inductive noise and costs. However, there are drawbacks such as an increase in height.
- the present invention has been made to solve the above-mentioned problems of the prior art, and can reduce the weight of a device such as an electric device without using a transformer, and further, does not generate any induced noise and has a low cost.
- the purpose is to obtain an electrostatic transformer that can be provided at the site. Disclosure of the invention
- one of the input terminals is connected to one end of a first capacitor directly or via a diode and a first switch, and the other of the input terminals is connected to the first switch.
- Connected to the other end of the first capacitor through a switch that opens and closes simultaneously with the opening and closing of the first switch, and connects both ends of the first capacitor with the opening and closing of the first switch, respectively.
- one of the input terminals is connected to one end of a first capacitor directly or via a diode and a first switch, and the other of the input terminals is connected to the first terminal.
- the switch is connected to both ends of the second capacitor via the switch to be opened and closed and the switch which is simultaneously opened and closed in conjunction with the opening and closing of the second switch, and both ends of the second capacitor are connected to output terminals
- the connection is characterized.
- the output terminals a and b are connected to the input terminals A and B via the first and second switches S 2 and the switches S i ′ and S 2 ′, respectively.
- the input terminals A and B and the output terminals a and b are always insulated completely when the other is closed. Therefore, when a commercial power supply with one end grounded is connected to the input terminals A and B, for example, regardless of which of the output terminals a and b is grounded, the intended purpose can be achieved without short-circuiting. Can be.
- the input side and the output side can be electrically insulated without using a transformer, the weight of a device such as an electric device can be reduced, and the induction noise can be reduced.
- FIG. 1 is a circuit diagram of an electrostatic transformer according to the present invention
- FIGS. 2 to 7 are circuit diagrams each showing another embodiment of the present invention.
- one terminal A of the input terminals A and B is connected to the first terminal
- the capacitor C i is connected to one end of the capacitor C i
- the other terminal B of the input terminals A and B is connected to the first capacitor C 3 via a switch S i ′ that opens and closes simultaneously in conjunction with the first switch. Connect to the other end.
- one terminal and the other terminal of the first capacitor are connected to the first switch, respectively, and the second switch S2 and the switch S2, which open and close when the first switch S H Connect to output terminals a and b via S 2 respectively.
- the electrostatic transformer of the present invention has the above-described configuration, when a voltage is applied between the input terminals A and B, the switches S i and S are opened and closed by opening and closing the first switches S and S: ′. While the ⁇ is closed, a voltage similar to the above-mentioned voltage is intermittently applied to the first capacitor, whereby the first capacitor Ci is charged.
- this first capacitor C! Of the charges, the first sweep rate Tutsi S and closed while S is open second sweep rate pitch S 2 and through the S 2 'output terminal a, the voltage appears at the b.
- a plurality of sets of the circuit composed of the first and second switches and the capacitor for example, three sets 1 to 3 are connected in parallel to each other, and one set.
- three sets 1 to 3 are connected in parallel to each other, and one set.
- the output of the waveform approximated to the input waveform is electrically connected to the input side from the output terminal by compensating for the time lag of charging the capacitor. It can be obtained with complete insulation.
- one terminal A of the input terminals A and B is connected to a first capacitor C, via a first switch S i such as a photocoupler.
- the other terminal B of the input terminals A and B is connected to the other end of the first capacitor via a switch S ′ which opens and closes simultaneously with the first switch Si.
- the second Suitsuchi S 2 and Suitsuchi S to closed opening reversed when the first sweep rate pitch S in conjunction with one and the other terminal of the 0 the first capacitor and each said first Suitsuchi S is opened and closed through 2 'connected to the second ends of the capacitor C 2, the second ends of the capacitor C 2 respectively output terminal a, - allowed to connect to b.
- the first switches S 1 and S i ′ are opened and closed at a cycle several times the AC voltage.
- an AC voltage similar to the AC voltage is intermittently applied to the first capacitor C, whereby the first capacitor C Will be charged by.
- the first switch S! Is charged by the charge of the first capacitor i.
- S i is the second charge capacitor C 2 through a 'is between closed second sweep rate Tutsi S 2 and S 2 which are open', the second ends connected to the output terminal a of the capacitor C 2 , B show the AC voltage.
- one terminal A of the input terminals A and B is connected to a first capacitor Si via a diode D and a first switch Si such as a photocoupler. co connecting to the end, the input terminal a, the other terminal B of B, the first sweep rate Tutsi S i 'through the first interlocking to open and close at the same time as Suitsuchi the capacitor (1 other Connect to the end.
- each said first sweep rate Tutsi S i and conjunction with the second Suitsuchi S 2 and Suitsuchi the first Suitsuchi S j is closed opening reversed when closing through S 2 'is connected to the second ends of the capacitor C 2, allowed to connect the second ends of the capacitor C 2 respectively output terminal a, to b.
- the first switches S i and S! Is opened and closed with a cycle several times the AC voltage, the first switch is closed while switches S i and S are closed.
- An AC voltage similar to the AC voltage is intermittently applied to the capacitor, thereby being charged by the first capacitor.
- FIG. 6 shows that a plurality of, for example, four capacitors C are connected in series between the output terminals a and b so that the electric charge of the second capacitor C 2 is sequentially and cyclically switched to the capacitor C.
- Another embodiment of the present invention is shown, and according to this embodiment, the output voltage can be amplified several times.
- the switch may be opened and closed every shorter period. In this case, AC can be obtained as an output.
- a second capacitor C is connected in series between the input terminals A and B as shown in Fig. 7. And the voltage across one of the capacitors Co may be used as the input voltage.
- the input side and the output side can be electrically insulated without using a transformer as in the related art.
- the weight of the equipment such as electrical equipment can be reduced, and there is no induction noise at all, and it can be widely used at low cost without fear of shorts and electric shocks.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Keying Circuit Devices (AREA)
- Ac-Ac Conversion (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900700880A KR900702626A (ko) | 1988-08-30 | 1989-08-29 | 정전 변압기 |
GB9009288A GB2230152B (en) | 1988-08-30 | 1990-04-25 | Electrostatic transformer |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21369088 | 1988-08-30 | ||
JP63/213690 | 1988-08-30 | ||
JP63228381A JPH02146955A (ja) | 1988-08-30 | 1988-09-14 | 静電トランス |
JP63/228381 | 1988-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990002439A1 true WO1990002439A1 (en) | 1990-03-08 |
Family
ID=26519941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1989/000875 WO1990002439A1 (en) | 1988-08-30 | 1989-08-29 | Electrostatic transformer |
Country Status (6)
Country | Link |
---|---|
US (1) | US5187421A (ja) |
EP (1) | EP0386261A4 (ja) |
JP (1) | JPH02146955A (ja) |
AU (1) | AU632060B2 (ja) |
GB (1) | GB2230152B (ja) |
WO (1) | WO1990002439A1 (ja) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2659507B1 (fr) * | 1990-03-09 | 1995-03-31 | Sumitomo Metal Ind | Convertisseur de courant continu en courant continu. |
FI89838C (fi) * | 1990-08-30 | 1993-11-25 | Nokia Mobile Phones Ltd | Dynamiskt spaenningsintegreringsfoerfarande samt kopplingar foer utfoerande och tillaempande av foerfarandet |
US5341285A (en) * | 1992-07-14 | 1994-08-23 | Wave Energy Corporation | Intelligent transformerless system for transferring energy from a power source to an isolated load |
US5424934A (en) * | 1992-11-12 | 1995-06-13 | Oki Electric Industry Co., Ltd. | Multivoltage power supply and control method thereof |
US5345376A (en) * | 1993-02-19 | 1994-09-06 | Tescom Corporation | Switching power supply with electronic isolation |
JPH07120718A (ja) * | 1993-08-31 | 1995-05-12 | Sharp Corp | 液晶表示装置の駆動電圧発生装置 |
US5568035A (en) * | 1993-10-15 | 1996-10-22 | Sony/Tektronix Corporation | Variable-capacitance power supply apparatus |
US5596489A (en) * | 1994-01-14 | 1997-01-21 | Intel Corporation | Capacitive transformer having a switch responsive to clock signals |
KR0139664B1 (ko) * | 1995-04-18 | 1998-08-17 | 김광호 | 박막 트랜지스터 액정 표시장치용 직류-직류 컨버터 |
US5729163A (en) * | 1994-10-18 | 1998-03-17 | The Boeing Company | Synchronous AC to DC conversion of differential AC signals |
EP0984557B1 (de) * | 1996-01-16 | 2006-06-14 | Telefonaktiebolaget LM Ericsson (publ) | Ausgangspufferschaltkreis |
US5914869A (en) * | 1997-09-15 | 1999-06-22 | General Instrument Corporation | Ac/dc transformerless voltage converter |
FR2778286B1 (fr) * | 1998-04-30 | 2002-04-12 | Sgs Thomson Microelectronics | Circuit convertisseur de tension |
US5956243A (en) * | 1998-08-12 | 1999-09-21 | Lucent Technologies, Inc. | Three-level boost rectifier with voltage doubling switch |
CN1139174C (zh) | 1998-08-31 | 2004-02-18 | 因芬尼昂技术股份公司 | 能量供给设备和具有该能量供给设备的电路装置 |
CN1326607A (zh) * | 1998-11-19 | 2001-12-12 | 因芬尼昂技术股份公司 | 能量供给设备和具有该能量供给设备的电路装置 |
GB0303875D0 (en) * | 2003-02-19 | 2003-03-26 | Halliburton Man Ltd | Electrical power supply arrangement for a downhole measurement assembly |
EP1668769A4 (en) * | 2003-09-16 | 2007-06-27 | Caelin Gabriel | METHOD AND DEVICE FOR ISOLATING RFI; EMI AND NOISE TRANSPARENTS IN POWER SUPPLY CIRCUITS |
JP3889011B2 (ja) * | 2004-03-26 | 2007-03-07 | ローム株式会社 | 昇圧電源装置、及びそれを用いた携帯機器 |
US7535281B2 (en) * | 2006-09-29 | 2009-05-19 | Micron Technology, Inc. | Reduced time constant charge pump and method for charging a capacitive load |
ATE470983T1 (de) * | 2007-03-30 | 2010-06-15 | Abb Research Ltd | Schaltzelle sowie umrichterschaltung zur schaltung einer vielzahl von spannungsniveaus mit einer solchen schaltzelle |
JP2010172050A (ja) * | 2009-01-20 | 2010-08-05 | Renesas Electronics Corp | Dc/dcコンバータ回路 |
US8274179B2 (en) * | 2009-03-20 | 2012-09-25 | Qualcomm Incorporated | Passive differential voltage doubler |
US8933665B2 (en) | 2009-08-05 | 2015-01-13 | Apple Inc. | Balancing voltages between battery banks |
US8320141B2 (en) * | 2009-08-05 | 2012-11-27 | Apple Inc. | High-efficiency, switched-capacitor power conversion using a resonant clocking circuit to produce gate drive signals for switching capacitors |
TWI401872B (zh) * | 2010-06-09 | 2013-07-11 | Ili Technology Corp | 不使用穩壓電容的倍壓電路 |
JP5064584B1 (ja) * | 2011-05-20 | 2012-10-31 | シャープ株式会社 | 直流昇圧装置及びこれを用いた太陽光発電システム |
DE102013206765A1 (de) | 2013-04-16 | 2014-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Schaltungsanordnung zur Übertragung von Energie |
JP6178212B2 (ja) * | 2013-10-30 | 2017-08-09 | 公益財団法人鉄道総合技術研究所 | 絶縁回路および交流電気車用主回路 |
DE102013114377A1 (de) * | 2013-12-18 | 2015-06-18 | Endress + Hauser Gmbh + Co. Kg | Feldgerät zur Erfassung oder Überwachung einer physikalischen oder chemischen Prozessgröße eines Mediums |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5112918U (ja) * | 1974-07-16 | 1976-01-30 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB854591A (en) * | 1956-06-26 | 1960-11-23 | Radio Heaters Ltd | Improvements in or relating to electric power supply units including rectifiers |
US3091479A (en) * | 1959-09-22 | 1963-05-28 | Raleigh Cycle Co Ltd | Cycle frames |
GB953522A (en) * | 1962-12-27 | 1964-03-25 | Adage Inc | Alternating signal translating circuit |
NO120566B (ja) * | 1968-08-12 | 1970-11-02 | Akers Mek Verksted As | |
FR207196A (ja) * | 1969-12-22 | |||
DE2052382A1 (de) * | 1970-10-26 | 1972-04-27 | Meggl F | Verfahren zur Übertragung von elektn scher Energie zwischen zwei galvanisch ge trennten Stromkreisen |
SU433605A1 (ja) * | 1971-06-28 | 1974-06-25 | ||
SU466593A1 (ru) * | 1971-11-01 | 1975-04-05 | Преобразователь посто нного напр жени в посто нное | |
US3868560A (en) * | 1973-12-17 | 1975-02-25 | Ibm | Capacitive voltage reducer |
JPS5112918A (ja) * | 1974-07-22 | 1976-01-31 | Meito Sangyo Kk | Dekisutoranntetsusakutaino seiho |
DE2435392A1 (de) * | 1974-07-23 | 1976-02-05 | Standard Elektrik Lorenz Ag | Schaltungsanordnung zum netzgetrennten betrieb von elektronischen geraeten, insbesondere rundfunk- und fernsehgeraeten |
SU955428A1 (ru) * | 1980-01-18 | 1982-08-30 | Одесский ордена Трудового Красного Знамени политехнический институт | Преобразователь посто нного напр жени в посто нное |
JPS5763931A (en) * | 1980-10-06 | 1982-04-17 | Hitachi Ltd | Inverting circut for reference voltage |
JPS5814224A (ja) * | 1981-07-17 | 1983-01-27 | Nippon Gakki Seizo Kk | 電源回路 |
JPS5858863A (ja) * | 1981-10-01 | 1983-04-07 | Nec Corp | スイツチド・キヤパシタ変成器 |
DE3335423A1 (de) * | 1983-09-29 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Schaltung zur spannungsvervielfachung |
IT1180809B (it) * | 1984-08-23 | 1987-09-23 | Giacinto Giorgio Allevi | Alimentatore senza trasformatore |
JPS61161967A (ja) * | 1985-01-10 | 1986-07-22 | Nec Corp | トランスレス電源回路 |
CH667761A5 (de) * | 1985-06-28 | 1988-10-31 | Bbc Brown Boveri & Cie | Hochspannungs-gleichspannungsquelle. |
NL8703152A (nl) * | 1987-12-29 | 1989-07-17 | Philips Nv | Geschakeld kapaciteitsnetwerk. |
US4807104A (en) * | 1988-04-15 | 1989-02-21 | Motorola, Inc. | Voltage multiplying and inverting charge pump |
US5051881A (en) * | 1990-07-05 | 1991-09-24 | Motorola, Inc. | Voltage multiplier |
JPH05112918A (ja) * | 1991-10-24 | 1993-05-07 | Iwata Kensetsu Kk | 融雪処理装置 |
JPH0682061A (ja) * | 1992-09-07 | 1994-03-22 | Matsushita Seiko Co Ltd | 局所冷房機の排水装置 |
-
1988
- 1988-09-14 JP JP63228381A patent/JPH02146955A/ja active Pending
-
1989
- 1989-08-29 EP EP19890909612 patent/EP0386261A4/en not_active Withdrawn
- 1989-08-29 AU AU40771/89A patent/AU632060B2/en not_active Expired - Fee Related
- 1989-08-29 US US07/460,332 patent/US5187421A/en not_active Expired - Fee Related
- 1989-08-29 WO PCT/JP1989/000875 patent/WO1990002439A1/ja not_active Application Discontinuation
-
1990
- 1990-04-25 GB GB9009288A patent/GB2230152B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5112918U (ja) * | 1974-07-16 | 1976-01-30 |
Also Published As
Publication number | Publication date |
---|---|
JPH02146955A (ja) | 1990-06-06 |
AU632060B2 (en) | 1992-12-17 |
AU4077189A (en) | 1990-03-23 |
EP0386261A1 (en) | 1990-09-12 |
GB9009288D0 (en) | 1990-07-25 |
US5187421A (en) | 1993-02-16 |
GB2230152B (en) | 1993-01-13 |
GB2230152A (en) | 1990-10-10 |
EP0386261A4 (en) | 1991-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1990002439A1 (en) | Electrostatic transformer | |
JPH05504879A (ja) | 改良型力率補正回路を有する無停電電源装置 | |
MXPA00007910A (es) | Convertidores de energia de modo multiple que incorporan circuitos equilibradores y metodos de funcionamiento de los mismos. | |
US4736286A (en) | Switching power supply | |
Li et al. | AC-DC converter with worldwide range input voltage by series and parallel piezoelectric transformer connection | |
CN109217707A (zh) | 可逆ac-dc和dc-ac晶闸管转换器 | |
CA2150319A1 (en) | Control equipment for a series capacitor connected into an electric power line | |
JPS61161967A (ja) | トランスレス電源回路 | |
US20080197714A1 (en) | Pulse circuit | |
Mohammed et al. | A novel capacitive DC transformer for adapts the DC voltage levels in DC power systems | |
JPS5917894B2 (ja) | パルス幅信号変換器 | |
JP3225271B2 (ja) | 電子交流降圧回路 | |
JPH0888907A (ja) | 電気車用バッテリ充電装置 | |
EP0042235A1 (en) | DC to AC inverter | |
JP3011877U (ja) | 交流電路に於ける直列通信信号の重畳回路 | |
KR100394660B1 (ko) | 전기 자동차 배터리의 충전 회로 | |
SU1594669A1 (ru) | Устройство преобразовани посто нного напр жени | |
RU178094U1 (ru) | Обратимый импульсный конвертор для авиабортовой системы электроснабжения | |
KR20170050644A (ko) | 비절연 양방향 직류-직류 컨버터 | |
Tseng et al. | High voltage generator using boost/flyback hybrid converter for stun gun applications | |
RU2045811C1 (ru) | Преобразователь постоянного напряжения в переменное | |
SU1725342A1 (ru) | Пьезоэлектрический преобразователь | |
SU1185559A1 (ru) | Генератор | |
SU767960A1 (ru) | Линейный импульсный модул тор | |
RU2166120C2 (ru) | Электронная система зажигания |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BB BG BR DK FI GB HU KR LK MC MG MW NO RO SD SU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BF BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1989909612 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1989909612 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1989909612 Country of ref document: EP |