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JPH02122591U - - Google Patents

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Publication number
JPH02122591U
JPH02122591U JP1989030613U JP3061389U JPH02122591U JP H02122591 U JPH02122591 U JP H02122591U JP 1989030613 U JP1989030613 U JP 1989030613U JP 3061389 U JP3061389 U JP 3061389U JP H02122591 U JPH02122591 U JP H02122591U
Authority
JP
Japan
Prior art keywords
pair
output
output terminal
push
power input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1989030613U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989030613U priority Critical patent/JPH02122591U/ja
Priority to AU41279/89A priority patent/AU631375B2/en
Priority to US07/406,237 priority patent/US5027040A/en
Priority to DE68926647T priority patent/DE68926647D1/en
Priority to EP89116980A priority patent/EP0359245B1/en
Publication of JPH02122591U publication Critical patent/JPH02122591U/ja
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図および第5図は、それぞれ、本考案のイ
ンバータの異なる例を示す回路図である。第2図
、第3a図および第3b図は、それぞれ、EL負
荷電圧Vと電流I、ドレイン・ソース電圧VDS
の電流IDSおよびELに実際にかかる電圧VE
Lの時間変化を示す線図である。第4図は、LC
R直列回路を示す回路図である。第6図は、デユ
ーテイ比を1より小さく設定した場合のスウイツ
チング波形およびドレイン・ソース電流IDSの
時間変化を示す線図である。 符号の説明、11,15……直流電源入力端子
、21,25……交流出力端子、31,35……
MOSFET、37……発振器、4……トランス
、45……コイル、5……コイル、61,65…
…コンデンサ、71,75……逆流防止ダイオー
ド、8……直流電源、9……負荷。
1 and 5 are circuit diagrams showing different examples of the inverter of the present invention, respectively. Figures 2, 3a and 3b show the EL load voltage V, current I, and drain-source voltage VDS, respectively.
The voltage VE actually applied to the currents IDS and EL
FIG. 3 is a diagram showing changes in L over time. Figure 4 shows the LC
FIG. 3 is a circuit diagram showing an R series circuit. FIG. 6 is a graph showing changes over time in the switching waveform and drain-source current IDS when the duty ratio is set smaller than 1. Explanation of symbols: 11, 15...DC power input terminal, 21, 25...AC output terminal, 31, 35...
MOSFET, 37... Oscillator, 4... Transformer, 45... Coil, 5... Coil, 61, 65...
... Capacitor, 71, 75 ... Reverse current prevention diode, 8 ... DC power supply, 9 ... Load.

補正 平1.12.28 実用新案登録請求の範囲を次のように補正する
Amendment 1.12.28 1999 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) 1対の直流電源入力端子と1対の交流出力
端子とを有し、 この直流電源入力端子の電圧をDC−DCコン
バーターを用いて昇圧し、 このDC−DCコンバーターの1対の直流出力
端子は逆流防止ダイオードを挿入した上で、直列
に接合された容量のほぼ等しい1対のコンデンサ
ーの両側端により架橋され、チヤネルの異なる1
対のコンプリメンタリーなMOSFETで構成さ
れるプシユプルスウイツチング回路のそれぞれ直
流電源入力となし、 このプシユプルスウイツチング回路の出力端
記交流出力端子の一端と接続し、 前記DC−DCコンバーターの直流出力端子間
に接続した前記1対のコンデンサーの直列接合部
と前記交流出力端子の他端とを接続し、 前記交流出力端子の一端と、プシユプルスウイ
ツチング回路の出力端間および/または前記交流
出力端子の他端と、1対のコンデンサーの直列接
合部間に、直列にインダクタンスを挿入し、
前記プシユプルスウイツチング回路に発振器か
らスウイツチング矩形波パルス電圧を印加するこ
とにより、前記1対のMOSFETのチヤネルを
交互に開閉することを特徴とするEL点燈用また
は液晶駆動用のインバータ。 (2) 1対の直流電源入力端子と、1対の交流出
力端子とを有し、 この直流電源入力端子は、逆流防止ダイオード
を挿入した上で、直列に接合された容量の等しい
1対のコンデンサーの両側端により架橋され、チ
ヤネルの異なる1対のコンプリメンタリーなMO
SFETで構成されるプシユプルスウイツチング
回路のそれぞれ直流電源入力となし、 さらに昇圧トランスを有し、 この、プシユプルスウイツチング回路の出力端
を、前記昇圧トランスの1次入力端と交流出力端
子の一端とに接続し、 前記昇圧トランスの2次側出力端を交流出力端
子の一端に接続し、 前記昇圧トランスの1次側出力端を前記直流電
源入力端子間に接続した前記一対のコンデンサー
の直列接続部に接続結合し、 前記プシユプルスウイツチング回路の出力端と
、昇圧トランスの1次入力端間および/または前
記1対のコンデンサーの直列接続部と、昇圧トラ
ンスの1次出力端間に、直列に両極性コンデンサ
ーを挿入し、
前記プシユプルスウイツチング回路に、発振器
からスウイツチング矩形波パルス電圧を印加する
ことにより、前記一対のMOSFETのチヤネル
を交互に開閉することを特徴とするEL点燈用ま
たは液晶駆動用のインバータ。 (3) 前記プシユプルスウイツチング回路の出力
端と、この出力端に接続した前記交流出力端子の
一端との間、および/または前記昇圧トランスの
2次側出力端と、この出力端に接続した前記交流
出力端子の他端との間に、補償用インダクターを
直列に挿入した請求項2に記載のEL点燈用また
は液晶駆動用のインバータ。 (4) 前記発振器から発生するスウイツチング矩
形波パルス電圧は、その周波数fが固定されてお
りそのパルス巾デユーテイー比を可変設定出来る
か、パルス巾デユーテイー比を固定して、周波数
fを可変設定出来るか、あるいは周波数fおよび
パルス巾デユーテイー比がそれぞれ独立に可変設
定可能である請求項1ないし3のいずれかに記載
のEL点燈用または液晶駆動用のインバータ。
[Claims for Utility Model Registration] (1) It has a pair of DC power input terminals and a pair of AC output terminals, and the voltage of this DC power input terminal is boosted using a DC-DC converter, and this DC - A pair of DC output terminals of a DC converter is bridged by a pair of capacitors with approximately equal capacitances connected in series, with a reverse current prevention diode inserted, and a pair of DC output terminals with different channels.
Each of the push-pull switching circuits composed of a pair of complementary MOSFETs is used as a DC power input, and the output end of this push-pull switching circuit is connected to one end of the AC output terminal. and connecting the series junction of the pair of capacitors connected between the DC output terminals of the DC-DC converter and the other end of the AC output terminal, and connecting one end of the AC output terminal with the An inductance is inserted in series between the output ends of the switching circuit and/or the other end of the AC output terminal and the series junction of a pair of capacitors, and a switching rectangular wave is input from an oscillator to the push-pull switching circuit. An inverter for EL lighting or liquid crystal driving, characterized in that channels of the pair of MOSFETs are alternately opened and closed by applying a pulse voltage. (2) It has a pair of DC power input terminals and a pair of AC output terminals, and this DC power input terminal has a pair of equal capacitance connected in series with a backflow prevention diode inserted. A pair of complementary MOs with different channels, bridged by both ends of the capacitor
Each of the push-pull switching circuits composed of SFETs serves as a DC power input, and also has a step-up transformer, and the output terminal of this push-pull switching circuit is connected to the primary input terminal of the step-up transformer. one end of the AC output terminal, a secondary output end of the step-up transformer is connected to one end of the AC output terminal, and a primary output end of the step-up transformer is connected between the DC power input terminals. The output terminal of the push-pull switching circuit and the primary input terminal of the step-up transformer and/or the series connection section of the pair of capacitors are connected and coupled to the series connection section of the pair of capacitors. By inserting a bipolar capacitor in series between the primary output terminals and applying a switching square wave pulse voltage from an oscillator to the push-pull switching circuit, the channels of the pair of MOSFETs are alternately opened and closed. An inverter for EL lighting or liquid crystal driving, characterized by the following. (3) between the output end of the push-pull switching circuit and one end of the AC output terminal connected to this output end, and/or between the secondary output end of the step-up transformer and this output end; 3. The inverter for EL lighting or liquid crystal driving according to claim 2, further comprising a compensation inductor inserted in series between the other end of the connected AC output terminal. (4) Regarding the switching rectangular wave pulse voltage generated from the oscillator, can its frequency f be fixed and its pulse width duty ratio set variably? Or can its pulse width duty ratio be fixed and its frequency f variably set? 4. The inverter for EL lighting or liquid crystal driving according to claim 1, wherein the frequency f and the pulse width duty ratio can be independently and variably set.

Claims (1)

【実用新案登録請求の範囲】 (1) 1対の直流電源入力端子と1対の交流出力
端子とを有し、 この直流電源入力端子の電圧をDC−DCコン
バーターを用いて昇圧し、 このDC−DCコンバーターの1対の直流出力
端子は逆流防止ダイオードを挿入した上で、直列
に接合された容量のほぼ等しい1対のコンデンサ
ーの両側端により架橋され、チヤネルの異なる1
対のコンプリメンタリーなMOSFETで構成さ
れるプシユプルスウイツチング回路のそれぞれ直
流電源入力となし、 このプシユプルスウイツチング回路の出力端を
インダクターを直列に挿入した上で前記交流出力
端子の一端と接続し、 前記DC−DCコンバーターの直流出力端子間
に接続した前記1対のコンデンサーの直列接合部
と前記交流出力端子の他端とを接続し、 前記プシユプルスウイツチング回路に発振器か
らスウイツチング矩形波パルス電圧を印加するこ
とにより、前記1対のMOSFETのチヤネルを
交互に開閉することを特徴とするEL点燈用また
は液晶駆動用のインバータ。 (2) 1対の直流電源入力端子と、1対の交流出
力端子とを有し、 この直流電源入力端子は、逆流防止ダイオード
を挿入した上で、直列に接合された容量の等しい
1対のコンデンサーの両側端により架橋され、チ
ヤネルの異なる1対のコンプリメンタリーなMO
SFETで構成されるプシユプルスウイツチング
回路のそれぞれ直流電源入力となし、 さらに昇圧トランスを有し、 この、プシユプルスウイツチング回路の出力端
を、前記昇圧トランスの1次入力端と交流出力端
子の一端とに接続し、 前記昇圧トランスの2次側出力端を交流出力端
子の一端に接続し、 前記昇圧トランスの1次側出力端には両極性コ
ンデンサーの一端を接続し、この両極性コンデン
サーの他端を前記直流電源入力端子間に接続した
前記一対のコンデンサーの直列接続部に接続結合
し、 前記プシユプルスウイツチング回路に、発振器
からスウイツチング矩形波パルス電圧を印加する
ことにより、前記一対のMOSFETのチヤネル
を交互に開閉することを特徴とするEL点燈用ま
たは液晶駆動用のインバータ。 (3) 前記プシユプルスウイツチング回路の出力
端と、この出力端に接続した前記交流出力端子の
一端との間、および/または前記昇圧トランスの
2次側出力端と、この出力端に接続した前記交流
出力端子の他端との間に、補償用インダクターを
直列に挿入した請求項2に記載のEL点燈用また
は液晶駆動用のインバータ。 (4) 前記発振器から発生するスウイツチング矩
形波パルス電圧は、その周波数fが固定されてお
りそのパルス巾デユーテイー比を可変設定出来る
か、パルス巾デユーテイー比を固定して、周波数
fを可変設定出来るか、あるいは周波数fおよび
パルス巾デユーテイー比がそれぞれ独立に可変設
定可能である請求項1ないし3のいずれかに記載
のEL点燈用または液晶駆動用のインバータ。
[Claims for Utility Model Registration] (1) It has a pair of DC power input terminals and a pair of AC output terminals, and the voltage of this DC power input terminal is boosted using a DC-DC converter, and this DC - A pair of DC output terminals of a DC converter is bridged by a pair of capacitors with approximately equal capacitances connected in series, with a reverse current prevention diode inserted, and a pair of DC output terminals with different channels.
A push-pull switching circuit consisting of a pair of complementary MOSFETs is used as a DC power input, and an inductor is inserted in series at the output end of the push-pull switching circuit, and then the AC output terminal is connected to the output terminal of the push-pull switching circuit. a series junction of the pair of capacitors connected between the DC output terminals of the DC-DC converter and the other end of the AC output terminal; An inverter for EL lighting or liquid crystal driving, characterized in that channels of the pair of MOSFETs are alternately opened and closed by applying a switching rectangular wave pulse voltage from . (2) It has a pair of DC power input terminals and a pair of AC output terminals, and this DC power input terminal has a pair of equal capacitance connected in series with a backflow prevention diode inserted. A pair of complementary MOs with different channels, bridged by both ends of the capacitor
Each of the push-pull switching circuits composed of SFETs serves as a DC power input, and also has a step-up transformer, and the output terminal of this push-pull switching circuit is connected to the primary input terminal of the step-up transformer. A secondary output terminal of the step-up transformer is connected to one end of the AC output terminal, and one end of a bipolar capacitor is connected to the primary output terminal of the step-up transformer. connecting the other end of the bipolar capacitor to the series connection portion of the pair of capacitors connected between the DC power input terminals, and applying a switching square wave pulse voltage from an oscillator to the push-pull switching circuit; An inverter for EL lighting or liquid crystal driving, characterized in that the channels of the pair of MOSFETs are opened and closed alternately. (3) between the output end of the push-pull switching circuit and one end of the AC output terminal connected to this output end, and/or between the secondary output end of the step-up transformer and this output end; 3. The inverter for EL lighting or liquid crystal driving according to claim 2, further comprising a compensation inductor inserted in series between the other end of the connected AC output terminal. (4) Regarding the switching rectangular wave pulse voltage generated from the oscillator, can its frequency f be fixed and its pulse width duty ratio set variably? Or can its pulse width duty ratio be fixed and its frequency f variably set? 4. The inverter for EL lighting or liquid crystal driving according to claim 1, wherein the frequency f and the pulse width duty ratio can be independently and variably set.
JP1989030613U 1988-09-14 1989-03-17 Pending JPH02122591U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1989030613U JPH02122591U (en) 1989-03-17 1989-03-17
AU41279/89A AU631375B2 (en) 1988-09-14 1989-09-12 El operating power supply circuit
US07/406,237 US5027040A (en) 1988-09-14 1989-09-12 EL operating power supply circuit
DE68926647T DE68926647D1 (en) 1988-09-14 1989-09-13 Power supply circuit for EL devices
EP89116980A EP0359245B1 (en) 1988-09-14 1989-09-13 EL operating power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989030613U JPH02122591U (en) 1989-03-17 1989-03-17

Publications (1)

Publication Number Publication Date
JPH02122591U true JPH02122591U (en) 1990-10-08

Family

ID=31255826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989030613U Pending JPH02122591U (en) 1988-09-14 1989-03-17

Country Status (1)

Country Link
JP (1) JPH02122591U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178149A (en) * 1999-12-20 2001-06-29 Sawafuji Electric Co Ltd Driver for vibration compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62213581A (en) * 1986-03-12 1987-09-19 Kosuke Harada Power unit with core and fet
JPS63310597A (en) * 1987-06-05 1988-12-19 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Dc-ac converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62213581A (en) * 1986-03-12 1987-09-19 Kosuke Harada Power unit with core and fet
JPS63310597A (en) * 1987-06-05 1988-12-19 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Dc-ac converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178149A (en) * 1999-12-20 2001-06-29 Sawafuji Electric Co Ltd Driver for vibration compressor
JP4515573B2 (en) * 1999-12-20 2010-08-04 澤藤電機株式会社 Drive unit for vibration type compressor

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