JPH03217914A - Dc stabilizing power unit - Google Patents
Dc stabilizing power unitInfo
- Publication number
- JPH03217914A JPH03217914A JP1449590A JP1449590A JPH03217914A JP H03217914 A JPH03217914 A JP H03217914A JP 1449590 A JP1449590 A JP 1449590A JP 1449590 A JP1449590 A JP 1449590A JP H03217914 A JPH03217914 A JP H03217914A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- control
- control element
- circuit
- series
- 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
Links
- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000009499 grossing Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 8
- 230000005669 field effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野）
本発明は、非安定化電源と負荷との間に直列に挿入され
た直列制御素子のインピーダンスを制御して負荷に定電
圧を供給する直流安定化電源装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a direct current system that supplies a constant voltage to a load by controlling the impedance of a series control element inserted in series between an unregulated power source and a load. This invention relates to a stabilized power supply device.
〔従来の技術］
従来の直流安定化電源装置は、非安定化電源と負荷との
間に直列に挿入された直列制御素子と、この直列制御素
子の出力電圧と基準電圧とを比較して制御電圧を求め、
かつこの制御電圧により出力電圧が一定になるように直
列制御素子のインピーダンスを制御する誤差増幅回路と
を備えた連続制御式のものがある。[Prior Art] A conventional DC stabilized power supply device uses a series control element inserted in series between an unregulated power supply and a load, and performs control by comparing the output voltage of this series control element with a reference voltage. Find the voltage,
There is also a continuous control type that is equipped with an error amplification circuit that controls the impedance of the series control element so that the output voltage is constant using this control voltage.
従来の安定化電源装置は、高安定化する機能には優れて
いるが、連続制御方弐を採っているため、非安定化電源
から直列制御素子に加えられる電圧が非常に大きく、直
列制御素子中の電力消費によって能率が著しく低下する
欠点があった。Conventional regulated power supply devices have an excellent ability to achieve high stability, but because they adopt a continuous control method, the voltage applied to the series control element from the unregulated power supply is extremely large, and the series control element The disadvantage was that the efficiency was significantly reduced due to the power consumption inside.
本発明は、かかる従来の課題に鑑み、スイッチング制１
′［Ｉ１方弐を採用して、直列制御素子に加えられる電
圧を必要最小限に保ち、著しく高能率化できる直流安定
化電源装置を提供することを目的とする。In view of such conventional problems, the present invention provides a switching system 1.
The purpose of the present invention is to provide a DC stabilized power supply device which adopts the I1 method, keeps the voltage applied to the series control element to the necessary minimum, and can achieve extremely high efficiency.
本発明は、非安定化電源と負荷との間に直列に挿入され
た直列制御素子と、この直列制御素子の出力電圧と基準
電圧とを比較して第１制御電圧を求め、かつこの第１制
御電圧により出力電圧が一定になるように直列制御素子
のインピーダンスを制御する第１誤差増幅回路とを備え
た直列制御形直流安定化電源において、非安定化電源と
直列制御素子との間に挿入されたスイッチング制御回路
と、直列制御素子の入力電圧と第１制御電圧とを比較し
て第２制御電圧を求め、かつこの第２制御電圧により直
列制御素子の入力電圧が必要最小限となるようにスイッ
チング制御回路を制御する第２誤差増幅回路とを備えた
ものである。The present invention calculates a first control voltage by comparing a series control element inserted in series between an unregulated power supply and a load, and the output voltage of this series control element with a reference voltage. Inserted between the unregulated power supply and the series control element in a series control type DC stabilized power supply equipped with a first error amplifier circuit that controls the impedance of the series control element so that the output voltage is constant by the control voltage. The input voltage of the series control element is compared with the first control voltage to obtain a second control voltage, and the second control voltage is used to minimize the input voltage of the series control element. and a second error amplification circuit that controls the switching control circuit.
〔作 用〕
本発明に係る直流安定化電源装置においては、第１誤差
増幅回路にて直列制御素子の出力電圧と基準電圧とを比
較して第１制御電圧を求め、この第１制御電圧によって
出力電圧が一定となるように直流制御素子のインピーダ
ンスを制御する。つまり、従来の直列制御方法により出
力電圧の高安定化を図る。[Function] In the DC stabilized power supply device according to the present invention, the output voltage of the series control element is compared with the reference voltage in the first error amplifier circuit to obtain the first control voltage, and the first control voltage is used to determine the first control voltage. The impedance of the DC control element is controlled so that the output voltage is constant. In other words, high stability of the output voltage is achieved using the conventional series control method.
一方、第２誤差増幅回路にて直流制御素子の入力電圧と
第１制御電圧とを比較して第２制御電圧を求め、この第
２制御電圧によりスイッチング制御回路を制御し、直列
制御素子の入力電圧が必要最小限となるようにする。従
って、直列制御素子中の消費電力が常に最小になり、著
しく高能率化することができる。On the other hand, a second error amplifier circuit compares the input voltage of the DC control element with the first control voltage to obtain a second control voltage, controls the switching control circuit with this second control voltage, and controls the input voltage of the series control element. Ensure that the voltage is the minimum necessary. Therefore, power consumption in the series control elements is always minimized, and efficiency can be significantly increased.
（実施例〕 以下、本発明の一実施例を図面に基づいて詳述する。(Example〕 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.
第１［ｆｆｌは本発明の一実施例を示す直流安定化電源
装置のブロック図である。第１図において、■は商用周
波数交流電源等の非安定化電源、２は負荷、３は直列制
御素子で、非安定化電源１と負荷２との間に直列に挿入
されている。４は整流平滑回路で、非安定化電源Ｉから
供給される交流を整流し平滑するようになっている。５
は基準電圧源、６は第１誤差増幅回路で、直流制御素子
３の出力部における出力電圧Ａと基準電圧源５から得ら
れる基＄電圧Ｂとの差を増幅して第１制御電圧Ｃを求め
、この第１制御電圧Ｃを直列制御素子３の制御電圧入力
部に加える。これによって直列制御素子３のインピーダ
ンスが制御され、負荷２に供給する出力電圧Ａが一定に
保たれる。なお、直列制御素子３、基準電圧源５、第１
誤差増幅回路６により従来の連続制御式定電圧回路が構
成され、高安定化回路として動作する。７はスイッチン
グ制御回路で、整流平滑回路４と直列制御素子３との間
に挿入されている。８は第２誤差増幅回路で、直列制御
素子３の制御電圧入力部における第１制御電圧Ｃと直列
制御素子３の入力部における入力電圧Ｄとを比較増幅し
て第２制御電圧Ｅを求め、この第２制御電圧Ｅをスイン
チング制御回路７に加える。するとスイッチング制御回
路７は、第２誤差増幅回路８の第２制御電圧Ｅによって
、直列制御素子３に必要最小限の入力電圧Ｄを加えるよ
うにスインチング動作する。このため、直流制御素子３
の消費電力が常に最小になり、著しく高能率化できる。The first [ffl] is a block diagram of a DC stabilized power supply device showing one embodiment of the present invention. In FIG. 1, ``■'' is an unregulated power source such as a commercial frequency AC power source, 2 is a load, and 3 is a series control element, which is inserted in series between the unregulated power source 1 and the load 2. 4 is a rectifying and smoothing circuit that rectifies and smoothes the alternating current supplied from the unregulated power source I. 5
is a reference voltage source, and 6 is a first error amplification circuit, which amplifies the difference between the output voltage A at the output section of the DC control element 3 and the base voltage B obtained from the reference voltage source 5 to generate the first control voltage C. This first control voltage C is then applied to the control voltage input section of the series control element 3. This controls the impedance of the series control element 3 and keeps the output voltage A supplied to the load 2 constant. Note that the series control element 3, the reference voltage source 5, the first
The error amplifier circuit 6 constitutes a conventional continuously controlled constant voltage circuit, which operates as a highly stabilized circuit. A switching control circuit 7 is inserted between the rectifying and smoothing circuit 4 and the series control element 3. 8 is a second error amplifier circuit, which compares and amplifies the first control voltage C at the control voltage input section of the series control element 3 and the input voltage D at the input section of the series control element 3 to obtain a second control voltage E; This second control voltage E is applied to the switching control circuit 7. Then, the switching control circuit 7 performs a switching operation using the second control voltage E of the second error amplification circuit 8 so as to apply the minimum necessary input voltage D to the series control element 3. For this reason, the DC control element 3
The power consumption is always minimized and the efficiency can be significantly improved.
従って、直列制御方式による高安定化とスインチング制
御方式による高能率化とを同時に達成できる。Therefore, high stability achieved by the series control system and high efficiency achieved by the switching control system can be achieved simultaneously.
次に本発明の一実施例を示す具体的回路について説明す
る。第２図は具体的回路を示し、整流平滑回路Ｆ、スイ
ッチング周波数制御回路Ｇおよび直列制御回路Ｈからな
っている。スイッチング周波数制御回路Ｇは高周波でス
イッチングしているので、極めて小形軽量である。Next, a specific circuit showing an embodiment of the present invention will be described. FIG. 2 shows a specific circuit, which consists of a rectifying and smoothing circuit F, a switching frequency control circuit G, and a series control circuit H. Since the switching frequency control circuit G performs switching at a high frequency, it is extremely small and lightweight.
整流平滑回路Ｆは商用周波数交流電ａＡ，ｃから供給さ
れる交流を全波整流回路Ｄ，で全波整流し、突入電流防
止素子Ｒｔｈを通して平滑用コンデンサーＣＩで直流に
交換している。直流電圧がスイッチング周波数制御回路
Ｇに加えられると、その電圧は抵抗Ｒ＋ ， Ｒ２
， Ｒ’＊で分圧されて電界効果トランジスタＦＥＴの
ゲート（１）に加えられ、電界効果トランジスタＦＥＴ
が導通し、高周波トランスＴの一次巻線Ｎ，に電流が流
れて、制御巻線Ｎｃに巻数比に応した電圧が発生し、電
界効果トランジスタＦＥＴの導通が継続する。The rectifying and smoothing circuit F performs full-wave rectification of alternating current supplied from the commercial frequency alternating current electricity aA, c in a full-wave rectifying circuit D, and converts it into direct current by a smoothing capacitor CI through an inrush current prevention element Rth. When a DC voltage is applied to the switching frequency control circuit G, the voltage is applied to the resistors R+ and R2
, R'* and applied to the gate (1) of the field effect transistor FET.
conducts, a current flows through the primary winding N of the high-frequency transformer T, a voltage corresponding to the turns ratio is generated in the control winding Nc, and the field effect transistor FET continues to conduct.
一方、制御巻線Ｎｃに発生した電圧は、抵抗Ｒ４とフォ
トトランジスタＰＣ２を通してコンデンサＣ２を充電す
る。その充電電圧がトランジスタＴ ｒ Ｈを導通させ
るまで上昇すると、電界効果トランジスタＦＥＴのゲー
トｌＯとソース１１間はトランジスタＴｒｌの導通によ
って短絡され、電界効果トランジスタＦＥＴは遮断状態
になる。このときトランスＴの各巻線に逆起電力が発生
し、先に充電されたコンデンサＣ２の電荷が抵抗Ｒ４、
制御巻線Ｎｃを通って放電する。その結果、トランジス
タＴｒ＋が遮断状態となり、電界効果トランジスタＦＥ
Ｔは再び導通する。On the other hand, the voltage generated in the control winding Nc charges the capacitor C2 through the resistor R4 and the phototransistor PC2. When the charging voltage increases to the point where the transistor T r H becomes conductive, the gate IO and the source 11 of the field effect transistor FET are short-circuited by the conduction of the transistor Trl, and the field effect transistor FET becomes cut off. At this time, a back electromotive force is generated in each winding of the transformer T, and the electric charge of the previously charged capacitor C2 is transferred to the resistor R4.
Discharge through the control winding Nc. As a result, the transistor Tr+ is cut off, and the field effect transistor FE
T becomes conductive again.
このような動作が高周波で繰り返され、二次巻綿Ｎ２に
巻線比に比例した高周波の方形波電圧が発生する。この
高周波電圧をダイオードＤ．，Ｄ３、コンデンサＣ３
，Ｃａｌ Ｃｓ ，抵抗Ｒ４で整？平滑し、直列制御回
路Ｈに直流を供給する。Such an operation is repeated at a high frequency, and a high frequency square wave voltage proportional to the winding ratio is generated in the secondary wound cotton N2. This high frequency voltage is passed through the diode D. , D3, capacitor C3
, Cal Cs, is it ok with resistor R4? smooth and supply direct current to the series control circuit H.
直列制御回路Ｈに電圧が加えられると、トランジスタＴ
ｒ２を通って直列制御トランジスタＴｒ．に電流が流れ
、出力電圧ｖ０が発生する。この出力電圧■。は可変分
圧抵抗Ｒ，で分圧され、定電圧ダイオードＤｚから得ら
れる基準電圧Ｅｚとの差が第１誤差増幅回路６で増幅さ
れ、電圧Ｖ■となってトランジスタＴｒｚのヘース入力
端に加えられ、出力電圧■。が一定になるように直列制
御トランジスタＴｒ．を動作させる。When a voltage is applied to the series control circuit H, the transistor T
r2 and the series control transistor Tr. A current flows through, and an output voltage v0 is generated. This output voltage■. is divided by the variable voltage dividing resistor R, and the difference from the reference voltage Ez obtained from the constant voltage diode Dz is amplified by the first error amplifying circuit 6, and becomes the voltage V, which is added to the Hess input terminal of the transistor Trz. and the output voltage■. The series control transistor Tr. make it work.
次に、発光ダイオードＰＣ．、ｌ−ランジスタＴｒ３、
抵抗Ｒｈ、第２誤差増幅回路８よりなる回路！について
説明する．
直列制御トランジスタＴｒ．のコレクタ電位ＶＣとベー
ス電位■おの差を第２誤差増幅回路８で増幅し、その出
力信号を抵抗Ｒ，を通してトランジスタＴｒ３に加え、
そのコレクタ電流によって発光ダイオードＰＣ，を働か
せてトランスＴの制御巻線Ｎｃ側に信号を送る。直列制
御トランジスタＴｒｏのコレクタ電位Ｖｃが上昇すると
、発光ダイオードＰＣ．およびフォトトランジスタＰＣ
２の電流が増加し、コンデンサＣ２の充電時間が短縮さ
れて、トランジスタＴｒｌが導通し、電界効果トランジ
スタＦＥＴが遮断する。その結果、電界効果トランジス
タＦＥＴの導通時間が短くなり、トランスＴの二次巻線
Ｎ２に発生する方形波パルス電圧のパルス幅が小さくな
って、直列制御トランジスタＴｒａのコレクタ電位Ｖｃ
が下がる。逆に、コレクタ電位Ｖｃが減少した場合は上
述と反対の動作をし、コレクタ電位Ｖｃが上昇する。Next, the light emitting diode PC. , l-transistor Tr3,
A circuit consisting of a resistor Rh and a second error amplification circuit 8! I will explain about it. Series control transistor Tr. The difference between the collector potential VC and the base potential ■ is amplified by the second error amplifier circuit 8, and the output signal is applied to the transistor Tr3 through the resistor R.
The collector current activates the light emitting diode PC, and sends a signal to the control winding Nc side of the transformer T. When the collector potential Vc of the series control transistor Tro rises, the light emitting diode PC. and phototransistor PC
2 increases, the charging time of capacitor C2 is shortened, transistor Trl becomes conductive, and field effect transistor FET turns off. As a result, the conduction time of the field effect transistor FET becomes shorter, the pulse width of the square wave pulse voltage generated in the secondary winding N2 of the transformer T becomes smaller, and the collector potential Vc of the series control transistor Tra becomes smaller.
goes down. Conversely, when the collector potential Vc decreases, the operation opposite to the above is performed, and the collector potential Vc increases.
このような制御動作によって、結果的に直列制御トラン
ジスタＴｒ＋＋のコレクターベース関電圧は、第７図に
示すように常にほぼ零に保たれ、直列制御トランジスタ
Ｔｒｏの消費電力は最小になる。As a result of this control operation, the collector-base voltage of the series control transistor Tr++ is always kept at approximately zero as shown in FIG. 7, and the power consumption of the series control transistor Tro is minimized.
一ｉに、トランジスタはそのコレクターベース間電圧が
ほぼ零になっても、ヘースーエミノタ間に信号を与える
と正常に動作する。従って、直列制御トランジスタＴｒ
ｏは、第６図に示すような効率特性で常に正常に動作し
、第５図に示すように、直列制御形安定化電源と同程度
の高安定度が得られる。First, even if the voltage between the collector and the base becomes almost zero, the transistor will operate normally if a signal is applied between the base and the collector. Therefore, the series control transistor Tr
o always operates normally with efficiency characteristics as shown in FIG. 6, and as shown in FIG. 5, high stability comparable to that of a series-controlled stabilized power source can be obtained.
なお、トランジスタＴｒ．、抵抗Ｒ，，Ｒ．，Ｒ，より
なる回路Ｅは過負荷を保護するために、第３図に示すよ
うなフの字形の負荷特性をもたせるための回路である。Note that the transistor Tr. , resistance R,,R. , R, is a circuit for providing a fold-back-shaped load characteristic as shown in FIG. 3 in order to protect against overload.
また、本回路全体の効率特性は、第４図に示すようにな
る．
［発明の効果〕
本発明によれば、非安定化電［１と直列制御素子３との
間に挿入されたスイッチング制御回路７と、直列制御素
子３の入力電圧Ｄと第１制御電圧Ｃとを比較して第２制
御電圧Ｅを求め、かつこの第２制御電圧已により直列制
御素子３の入力電圧Ｄが必要最小限となるようにスイッ
チング制御回路７を制御する第２誤差増幅回路８とを備
えているので、直流制御素子３の消費電力を常に最小に
でき、従来に比べて著しく高能率化を図ることができ、
その実用的価値は極めて大である。The efficiency characteristics of the entire circuit are shown in Figure 4. [Effects of the Invention] According to the present invention, the switching control circuit 7 inserted between the unregulated voltage [1] and the series control element 3, the input voltage D of the series control element 3, and the first control voltage C a second error amplifying circuit 8 which compares the values to obtain a second control voltage E, and controls the switching control circuit 7 so that the input voltage D of the series control element 3 becomes the minimum necessary level by this second control voltage. , the power consumption of the DC control element 3 can always be minimized, and efficiency can be significantly increased compared to the conventional
Its practical value is extremely great.
第１図は本発明の一実施例の全体的構成を示すプロ．７
ク図、第２図はブロック図に基づく具体的回路図、第３
図は実施例による負荷特性図、第４図は本回路全体の効
率特性図、第５図は入出力特性図、第６図は直列制御ト
ランジスタＴｒａの効率特性図、第７図は同トランジス
タＴｒｅのコレクターヘース間電圧Ｖｃｂの負荷特性図
である。
ｌ・・・非安定化部電源、２・・・負荷、３・・・直列
制御素子、５・・・基準電圧源、６・・・第１誤差増幅
回路、７・・・スインチング制御回路、８・・・第２誤
差増幅回路、Ａ・・・出力電圧、Ｂ・・・基準電圧、Ｃ
・・・第１ １１御電圧、Ｄ・・・入力電圧、Ｅ・・・
第２制御電圧。FIG. 1 is a diagram showing the overall configuration of an embodiment of the present invention. 7
Figure 2 is a specific circuit diagram based on the block diagram, Figure 3 is a specific circuit diagram based on the block diagram.
The figure is a load characteristic diagram according to the embodiment, FIG. 4 is an efficiency characteristic diagram of the entire circuit, FIG. 5 is an input/output characteristic diagram, FIG. 6 is an efficiency characteristic diagram of the series control transistor Tra, and FIG. 7 is an efficiency characteristic diagram of the same transistor Tre. FIG. 3 is a load characteristic diagram of collector-to-collector voltage Vcb. l...Unstabilized unit power supply, 2...Load, 3...Series control element, 5...Reference voltage source, 6...First error amplification circuit, 7...Switching control circuit, 8... Second error amplification circuit, A... Output voltage, B... Reference voltage, C
...1st 11th control voltage, D...input voltage, E...
Second control voltage.
Claims (1)
直列制御素子３と、この直列制御素子３の出力電圧Ａと
基準電圧Ｂとを比較して第１制御電圧Ｃを求め、かつこ
の第１制御電圧Ｃにより出力電圧Ａが一定になるように
直列制御素子３のインピーダンスを制御する第１誤差増
幅回路６とを備えた直列制御形直流安定化電源装置にお
いて、非安定化電源１と直列制御素子３との間に挿入さ
れたスイッチング制御回路７と、直列制御素子３の入力
電圧Ｄと第１制御電圧Ｃとを比較して第２制御電圧Ｅを
求め、かつこの第２制御電圧Ｅにより直列制御素子３の
入力電圧Ｄが必要最小限となるように、スイッチング制
御回路７を制御する第２誤差増幅回路８とを備えたこと
を特徴とする直流安定化電源装置。1. A series control element 3 inserted in series between the unregulated power supply 1 and the load 2, and comparing the output voltage A of this series control element 3 with a reference voltage B to determine the first control voltage C. , and a first error amplification circuit 6 that controls the impedance of the series control element 3 so that the output voltage A is constant using the first control voltage C. A switching control circuit 7 inserted between the power supply 1 and the series control element 3 compares the input voltage D of the series control element 3 with the first control voltage C to obtain a second control voltage E, and calculates the second control voltage E. 1. A DC stabilized power supply device comprising: a second error amplification circuit 8 that controls a switching control circuit 7 so that an input voltage D of a series control element 3 is a necessary minimum by a second control voltage E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1449590A JPH03217914A (en) | 1990-01-23 | 1990-01-23 | Dc stabilizing power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1449590A JPH03217914A (en) | 1990-01-23 | 1990-01-23 | Dc stabilizing power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03217914A true JPH03217914A (en) | 1991-09-25 |
Family
ID=11862640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1449590A Pending JPH03217914A (en) | 1990-01-23 | 1990-01-23 | Dc stabilizing power unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03217914A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011048633A (en) * | 2009-08-27 | 2011-03-10 | Yokogawa Electric Corp | Voltage generator |
| JP2011061941A (en) * | 2009-09-09 | 2011-03-24 | Fuji Electric Systems Co Ltd | Power supply apparatus |
| WO2025164280A1 (en) * | 2024-01-31 | 2025-08-07 | 株式会社Mtg | Electrostimulation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180409A (en) * | 1986-02-05 | 1987-08-07 | Nippon Telegr & Teleph Corp <Ntt> | Series stabilized control type power supply device |
| JPS62204319A (en) * | 1986-03-04 | 1987-09-09 | Nikoku Kikai Kogyo Kk | Stabilized power supply circuit controlling input by output series regulator |
-
1990
- 1990-01-23 JP JP1449590A patent/JPH03217914A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180409A (en) * | 1986-02-05 | 1987-08-07 | Nippon Telegr & Teleph Corp <Ntt> | Series stabilized control type power supply device |
| JPS62204319A (en) * | 1986-03-04 | 1987-09-09 | Nikoku Kikai Kogyo Kk | Stabilized power supply circuit controlling input by output series regulator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011048633A (en) * | 2009-08-27 | 2011-03-10 | Yokogawa Electric Corp | Voltage generator |
| JP2011061941A (en) * | 2009-09-09 | 2011-03-24 | Fuji Electric Systems Co Ltd | Power supply apparatus |
| WO2025164280A1 (en) * | 2024-01-31 | 2025-08-07 | 株式会社Mtg | Electrostimulation device |
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