JPS58133179A - Inverter circuit - Google Patents

Inverter circuit

Info

Publication number
JPS58133179A
JPS58133179A JP57013744A JP1374482A JPS58133179A JP S58133179 A JPS58133179 A JP S58133179A JP 57013744 A JP57013744 A JP 57013744A JP 1374482 A JP1374482 A JP 1374482A JP S58133179 A JPS58133179 A JP S58133179A
Authority
JP
Japan
Prior art keywords
transistor
transistors
voltage
circuit
base current
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.)
Granted
Application number
JP57013744A
Other languages
Japanese (ja)
Other versions
JPH0632567B2 (en
Inventor
Takahiro Hara
隆裕 原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Life Solutions Ikeda Electric Co Ltd
Original Assignee
Ikeda Electric Co Ltd
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 by Ikeda Electric Co Ltd filed Critical Ikeda Electric Co Ltd
Priority to JP57013744A priority Critical patent/JPH0632567B2/en
Publication of JPS58133179A publication Critical patent/JPS58133179A/en
Publication of JPH0632567B2 publication Critical patent/JPH0632567B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53Conversion of dc power input into ac power output without possibility of reversal 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
    • H02M7/537Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To reduce switching loss and to improve efficiency, by providing base current control circuits, which flow reverse base currents to a pair of transistors that are conducted alternately when they are transferred into an OFF state. CONSTITUTION:Series circuits of chokes CH1 and CH2 and capacitors C3 and C4 are connected to a DC power source E on the side of primary windings NP1 and NP2 of an inverter transformer T. Diodes D3 and D4 prevent the turning ON of the transistors TR1 and TR2 in the reverse direction. Diodes D5 and D6 constitute the base current control circuits Q1 and Q2. When the transistors TR1 and TR2 are turned OFF from ON, the voltages of the primary windings NP1 and NP2 (resonant capacitors C1 and C2) are applied to the bases of the transistors TR1 and TR2. The reverse base currents are flowed to the transistors TR1 and TR2.

Description

【発明の詳細な説明】 本発明は直流電源を一対のコンデンサにより分圧し、交
互に導通する一対のトランジスタに印加する電圧を半減
できるようにしたインバータ回路において、電力損を少
なくして効率をよくし九ものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention is an inverter circuit in which the voltage of a DC power source is divided by a pair of capacitors, and the voltage applied to a pair of transistors that are alternately conductive can be halved, reducing power loss and improving efficiency. There are nine things.

第1図はこの種の従来のインバータ回路を示し、同図に
おいて、(P、)CP、)は直流電源−が接続されてい
る入力端子であ〕、ζ0両端子(P、1(P、)にチ厘
−り((JI、)を介してインダクタンス素子(C−)
とその両端に接続された同一容量の一対のコンデンサ(
0,)(C−との直列回路が接続されている。そして該
コンデンサ(C1)とインダクタンス素子((E、) 
 との直列回路の両端には、インバータトランスσ)の
1次巻線を二分割した一方01次巻線(NP、)と、エ
ミッタ、コレクタを介して接続されるトランジスI(T
鵬)との直列回路が接続され、その直列回路にバイアス
抵抗(B、)とダイオードCD+)との直列回路が並列
接続されている。ま九、コンデンサ(C4)とインダク
タンス素子(OR,)との直列回路の両端には、同様に
分割した他方の1次巻@ (NP、)とトランジスタ(
TB、)との直列回路が接続され、七〇II列図路にバ
イアス抵抗(に)とダイオード(D、)との直列回路が
並列接続されている。 tNB、)(NB、)は互いに
二分割され九トランスσ)の帰還巻線で、一方の帰還巻
is (NBt)はその一端がトランジスタ(TR,)
のベースに接続され、他端が抵抗(II、)とダイオー
ド(D、1と1D4QI K接・続されてお9、帰還巻
線(NB、)はその一端がトランジスタ(TR,)のベ
ースに接続され、他端が抵抗(4)とダイオード(D、
)との間に接続されている。  (0,XO,)は1次
巻線(NP、)(N鳥)に夫々並列に接続した共振コン
デンサである。(4)(P4)は負荷重が接続される2
次巻線(NB)の出力端子である。
FIG. 1 shows this type of conventional inverter circuit, in which (P, )CP, ) is the input terminal to which the DC power supply is connected], ) through the inductance element (C-) ((JI,)
and a pair of capacitors of the same capacity connected across it (
0,)(C- is connected.Then, the capacitor (C1) and the inductance element ((E,)
A transistor I(T
A series circuit with a bias resistor (B,) and a diode CD+) is connected in parallel to the series circuit. Also, the other similarly divided primary winding @ (NP,) and the transistor (
A series circuit with TB,) is connected, and a series circuit with a bias resistor (N) and a diode (D,) is connected in parallel with the 70II column circuit. tNB,) (NB,) is a feedback winding of nine transformers σ) which is divided into two parts, and one feedback winding is (NBt) has one end connected to a transistor (TR,).
The other end of the feedback winding (NB,) is connected to the base of the transistor (TR,), and the other end is connected to the resistor (II,) and the diode (D, 1 and 1D4QI K). connected, and the other end is a resistor (4) and a diode (D,
) is connected between. (0,XO,) are resonant capacitors connected in parallel to the primary windings (NP, ) (N birds), respectively. (4) (P4) is 2 where the load weight is connected
This is the output terminal of the next winding (NB).

次に動作番説明すると、トランジスJ(T鴇X’l’R
,)のいずれかをバイアス抵抗(R3)(R,)を介し
てベース電流を流してオンさせ、帰還巻線(NBρ(N
B、)K誘起される電圧によ)トランジスタ(TR,1
(’I’ζ)を交互にオン、オフさせて2次巻線(NB
)KFr定周波の交流電力を誘起させる。即ち、帰還巻
l1(NB、XNB、) K誘起される電圧は1次巻線
(NP、)(NP、)のインダクタンスと共振コンデン
サ(C11(0,)の容量とで決定される共振電圧と同
期の正弦波の電圧であシ、その極性は共振に従って交番
し、帰還巻@ (NB、)(NB、)の極性によりバイ
アス抵抗(R+)(R,)を介して流れる電流をトラン
ジスタ(TR,)のベースかトランジスタ(’I’R,
)のベースに流し、トランジスタ(TR1)(T鵬)を
オンオフさせる。例えば帰還巻@ (NB、XNB、)
の極性が第1図のようになっている場合、帰還巻線(N
B、1(NB、)の電圧によりトランジスタ(TR,)
のベース、エミッタ間が順方向、トランジスタ(TR,
)のベース、エミッタ間が逆方向に電圧が印加される為
、バイアス抵抗(R1) t 介してトランジスタ(T
−)のベースに電流が流れ、トランジスタ(T八)がオ
ンになり、トランジスタ(T4)がオフにな夛、帰還巻
線(NB、XNBm)の極性力5j & するとトラン
ジスタ(TR,)がオフシトツンνスタ(TR,)がオ
ンになる。トランジスタ(TR,)(TR,3に流れる
ベース電流は電源■の電圧、バイアス抵抗(R,)(I
t、)の抵抗値及び帰還巻線(NB、3(N馬)の電圧
で決定される。そして、動作の際Kl[流電源Q)はコ
ンデンサ(0,)(0,)によ)分圧され、1次巻線(
NP、)(狗に半減された電圧が印加するので、トラン
ジスタ(TR,)(Tlll)K印加される電圧を半減
でき、従ってインバータ回路を高入力電源で動作させて
も、低い耐圧のトランジスタ(TIE、)(Tl1m)
を便することがで自、安上)とな夛、しかも高lI波特
性も良好となる。
Next, to explain the operation number, transistor J (T
, ) is turned on by passing a base current through the bias resistor (R3) (R, ), and the feedback winding (NBρ(N
B,) due to the voltage induced by K) transistor (TR,1
('I'ζ) is turned on and off alternately to wind the secondary winding (NB
) Induce KFr constant frequency AC power. That is, the voltage induced in the feedback winding l1 (NB, XNB,) K is the resonant voltage determined by the inductance of the primary winding (NP, It is a synchronous sinusoidal voltage whose polarity alternates according to the resonance, and the current flowing through the bias resistor (R+) (R,) is connected to the transistor (TR) depending on the polarity of the feedback winding @ (NB,) (NB,). , ) or the base of the transistor ('I'R,
) to turn on and off the transistor (TR1) (Tpeng). For example, return volume @ (NB, XNB,)
If the polarity of the feedback winding (N
The voltage of B,1 (NB,) causes the transistor (TR,)
The forward direction is between the base and emitter of the transistor (TR,
) Since voltage is applied in the opposite direction between the base and emitter of the transistor (T
-), the transistor (T8) turns on, the transistor (T4) turns off, and the polarity force of the feedback winding (NB, XNBm) 5j & Then the transistor (TR, ) turns off. ν star (TR,) is turned on. The base current flowing through the transistor (TR,) (TR, 3) is the voltage of the power supply ■, the bias resistor (R,) (I
It is determined by the resistance value of the feedback winding (NB, 3 (N horses)) and the voltage of the feedback winding (NB, 3 (N horses). During operation, Kl [current power Q) is The primary winding (
Since a voltage halved to the transistor (TR,)(Tlll)K is applied to the transistor (NP,)(dog), the voltage applied to the transistor (TR,)(Tlll)K can be halved. TIE, ) (Tl1m)
In addition, the high II wave characteristics are also improved.

ところが、このインバータ回路では以下の問題がある。However, this inverter circuit has the following problems.

帰還巻線(NB)の極性が反転すると、オフしていた一
方のトランジスタ(TR,)(’I’R,I K aベ
ース電流が流れ、直ちにオンに移行しようとするが、オ
ンしていた他方のトランジスタ(TR,)(TRI)は
、そのベース、エミッタ間に蓄積電荷があシこれが無く
なるのに時間がかかるため、ベース電流が流れなくなっ
てもすぐKはオフ状態に移行せず、一定期間オン状態を
保った後オフ状態に移行する。即ちトランジスタ(TR
,)(TB*’のコレクタ、エミッタ間に電圧が印加さ
れている状態で電流が流れている期間が生じ、スイッチ
ングロスが生じる。
When the polarity of the feedback winding (NB) is reversed, the base current of one transistor (TR,) ('I'R, I K a, which was off) flows, and the transistor tries to turn on immediately, but it turns on. The other transistor (TR,) (TRI) has accumulated charge between its base and emitter, and it takes time for this to disappear, so even if the base current stops flowing, K does not immediately shift to the OFF state, but remains constant. After maintaining the on state for a period of time, it shifts to the off state. That is, the transistor (TR
, )(There is a period in which current flows while a voltage is applied between the collector and emitter of TB*', and switching loss occurs.

本発明は上記問題点を解消し九もので、その特徴とする
ところは、インバータトランスの1次巻MI@の直流電
#K、チタークを介してインダクタンス素子とその両端
の一対のコンデンサとの直列回路を接続し、各一方のコ
ンデンサとインダクタンス素子との両者直列回路に、前
記トランスの1次巻線とトランジスタとの直列回路を夫
々並列接続したインバータ回路において、前記各トラン
ジスタにそのオフ移行時に逆ベース電流を流すベース電
流制御回路を設けた点にある。
The present invention solves the above problems and is characterized by a series circuit of an inductance element and a pair of capacitors at both ends of the inductance element via a DC current #K of the primary winding MI@ of an inverter transformer and a titan. In an inverter circuit in which a series circuit of the primary winding of the transformer and a transistor is connected in parallel to a series circuit of a capacitor and an inductance element on each side, each of the transistors has an inverted base when it turns off. The point is that a base current control circuit is provided to flow current.

以下、本発明を図示の9!施例に従って説明すると、第
2図は本発明の一東施例を示し、同図において、(ハ)
(D、)(Di)(D、1はダイオードであシ、ダイオ
ード(Dj(’%’によシトランジスタ(T鴇)(TB
、)が逆方向にオンするのを防止すると共に、ダイオー
ド(D、)(D6)により夫々ベース電流制御回路(Q
、)(Q、)を構成し、)ランνスタ(TR,)(TR
,)がオンからオフへ移行すると111次巻@ (NP
tXNPj (共19 :! ン5’ y t (C+
XOm) )の電圧をトランジスタ(TR,XTR,)
のベースに印加して、トランジスタ(TR,)(T為)
K逆ベース電流を流すよう圧している。
Below, the present invention is illustrated in 9! To explain according to the embodiment, FIG. 2 shows a first embodiment of the present invention, and in the same figure, (c)
(D,) (Di) (D, 1 is a diode, diode (Dj ('%') is a transistor (T) (TB
, ) are prevented from turning on in the opposite direction, and the base current control circuit (Q
, )(Q,) and ) run ν star(TR,)(TR
, ) transitions from on to off, the 111th volume @ (NP
tXNPj (both 19:! n5' y t (C+
The voltage of the transistor (TR, XTR, )
applied to the base of the transistor (TR,) (T)
K is applied so that a reverse base current flows.

次に動作を説明する。基本的な動作は第1図の回路と同
様であ)、1次巻線(NP、)(NP、)と共振コンデ
ンサ(0,)(0,)との振動電圧と同相の帰還巻線(
NB、)(NB−の電圧の極性によ31 ) ? y 
sF :x I (TR,MTI、)カダイオード(D
、XD、)を介して交互にオンオフする。
Next, the operation will be explained. The basic operation is the same as the circuit shown in Figure 1), and the feedback winding (
NB, ) (31 depending on the polarity of the voltage of NB-)? y
sF: x I (TR, MTI,) diode (D
, XD, ) are turned on and off alternately.

そして、トランジスタ(TR,)がオンからオフへ移行
するとき、第3図に示す如くダイオード(D−を介して
1次巻線(NP、) (共損コンデンナ(0,)  )
の電圧ヲトランVスタ(TR,)のベースに印加シテ逆
ベース電流幀を流す。を九トランジスタ(TR1)がオ
ンからオフへ移行するとき、同様にしてダイオードCD
、)を介してトランジスタ(T−)に逆ペース電流を流
す。
When the transistor (TR,) transitions from on to off, the primary winding (NP,) (common loss capacitor (0,)) is connected via the diode (D-) as shown in Figure 3.
When the voltage is applied to the base of the transformer V star (TR,), a reverse base current flows. Similarly, when the nine transistor (TR1) transitions from on to off, the diode CD
A reverse pace current is passed through the transistor (T-) through the transistor (T-).

ダイオード(D、XD4)は第4図に示す如くループ(
ロ)でトランジスタ(TR,XTIりが逆方向にオンす
ゐのを防止する。まえ、トランジスタ(TR,)がオン
からオフへ移行する場合を考えると、第5図に示す如く
ループ(/つができ、コンデンサ(0,)の電圧がコン
デンサ(C4)の電圧と打ち消し合って、1次巻線(N
F、)(MP、)(コンダン−? (C!、MO,) 
)の電圧によりトランジスタ(TR,)が逆方向にオン
するのをダイオード(Ds)で防止する。従ってトラン
ジスタ(’!’R,)(TILn)がオンからオフに移
行するとき、逆ベース電流により急速にオフする。
The diode (D, XD4) is connected to the loop (
(b) prevents the transistor (TR, The voltage of the capacitor (0,) cancels out the voltage of the capacitor (C4), and the voltage of the primary winding (N
F,)(MP,)(Condan-? (C!, MO,)
) The diode (Ds) prevents the transistor (TR, ) from turning on in the opposite direction due to the voltage across the transistor (TR, ). Therefore, when the transistor ('!'R,) (TILn) transitions from on to off, it is rapidly turned off due to the reverse base current.

本発明によれば、交互に導通する一対のトランジスタに
、そのオフ移行時に逆ベース電流を流すベース電流制御
回路を設けているので、トランジスタがオンからオフに
移行する時にベース、エミッタ間の蓄積電荷を急速に無
くし、トランジスタをオン状態からオフ状態へ急速に移
行させることができる。従ってスイッチングロスを小さ
くしてインバー!回路の効率を顕著に改善し得る。
According to the present invention, a pair of transistors that are alternately conductive is provided with a base current control circuit that causes a reverse base current to flow when the transistors turn off, so that when the transistors turn from on to off, there is a charge accumulated between the base and the emitter. can be rapidly eliminated, and the transistor can be rapidly transitioned from the on state to the off state. Therefore, reduce switching loss and use inverter! The efficiency of the circuit can be significantly improved.

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

第1WAは従来例を示す回路図、32図は本発゛明の一
実施例を示す回路図、第3図乃至第5図は動作説明用の
回路図である。 (至)・・・i[ffi電源、σ)・・・インバータト
ランス、(NP、)(NP、) ・・・1次巻線、(N
8)・2次41111、(NB、XNB−・・・帰還巻
線、(C,)(0,)・・・共損コンデン?、((3H
,)・・・チ厘−り、 (帆)、、、インダクタンス素
子、(C,)(04)・・・コンデ>9、(TR,XT
II、) −= ) ? y sF X p 、(Ql
)(Q、) ・・・ヘ−x電流制御回路。 特許出願人  池田電横株式会社
The first WA is a circuit diagram showing a conventional example, FIG. 32 is a circuit diagram showing an embodiment of the present invention, and FIGS. 3 to 5 are circuit diagrams for explaining the operation. (To)...i [ffi power supply, σ)...Inverter transformer, (NP,) (NP,)...Primary winding, (N
8)・Secondary 41111, (NB, XNB-...Feedback winding, (C,)(0,)...Co-loss capacitor?, ((3H
,)...Chirin, (Sail),,,Inductance element, (C,) (04)...Conde>9, (TR, XT
II,) −= )? y sF X p , (Ql
)(Q,)...He-x current control circuit. Patent applicant: Ikeda Denyoko Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 1 インバータトランスの1次巻線側の直流電源に一チ
ョークを介してインダクタンス素子とその両端の一対の
コンデンサとの直列回路を接続し、各一方のコンデンサ
とインダクタンス素子との両者直列回路に、前記トラン
スの1次巻線とトランジスタとの直列回路を夫々並列接
続したインバータ回路において、前記各トランジスタに
そのオフ移行時に逆ベース電流を流すベース電流制御回
路を設けたことを特徴とするインバータ回路。
1 Connect a series circuit consisting of an inductance element and a pair of capacitors at both ends of the inductance element through one choke to the DC power supply on the primary winding side of the inverter transformer, and connect the series circuit of each one of the capacitors and the inductance element to the above-mentioned series circuit. An inverter circuit in which a series circuit of a primary winding of a transformer and a transistor is connected in parallel, characterized in that the inverter circuit is provided with a base current control circuit that causes a reverse base current to flow through each transistor when the transistor is turned off.
JP57013744A 1982-01-30 1982-01-30 Inverter circuit Expired - Lifetime JPH0632567B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57013744A JPH0632567B2 (en) 1982-01-30 1982-01-30 Inverter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57013744A JPH0632567B2 (en) 1982-01-30 1982-01-30 Inverter circuit

Publications (2)

Publication Number Publication Date
JPS58133179A true JPS58133179A (en) 1983-08-08
JPH0632567B2 JPH0632567B2 (en) 1994-04-27

Family

ID=11841759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57013744A Expired - Lifetime JPH0632567B2 (en) 1982-01-30 1982-01-30 Inverter circuit

Country Status (1)

Country Link
JP (1) JPH0632567B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142622A (en) * 1977-05-19 1978-12-12 Densetsu Kiki Kogyo Kk Power supply circuit for dccac conversion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142622A (en) * 1977-05-19 1978-12-12 Densetsu Kiki Kogyo Kk Power supply circuit for dccac conversion

Also Published As

Publication number Publication date
JPH0632567B2 (en) 1994-04-27

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