JPH059186U - Boosting circuit - Google Patents
Boosting circuitInfo
- Publication number
- JPH059186U JPH059186U JP6205991U JP6205991U JPH059186U JP H059186 U JPH059186 U JP H059186U JP 6205991 U JP6205991 U JP 6205991U JP 6205991 U JP6205991 U JP 6205991U JP H059186 U JPH059186 U JP H059186U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- capacitor
- circuit
- chopper circuit
- switching element
- 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
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
(57)【要約】
【目的】 抵抗による損失を発生させずに昇圧チョッパ
回路のサージ電圧の発生を抑制する。
【構成】 スイッチング素子2と並列にダイオード5と
コンデンサ6との直列回路を接続してなる昇圧チョッパ
回路4において、このダイオード5と並列にコンデンサ
C1とダイオードD1との直列回路を接続し、この直列
接続点を直流電源1の一端に接続する。
【効果】 ダイオード5の逆回復時間の経過後に流れる
電流による損失を発生させずにサージ電圧が抑制でき
る。
(57) [Abstract] [Purpose] To suppress the generation of surge voltage in the step-up chopper circuit without generating loss due to resistance. [Constitution] In a step-up chopper circuit 4 in which a series circuit of a diode 5 and a capacitor 6 is connected in parallel with a switching element 2, a series circuit of a capacitor C1 and a diode D1 is connected in parallel with this diode 5 and The connection point is connected to one end of the DC power supply 1. [Effect] The surge voltage can be suppressed without generating a loss due to the current flowing after the reverse recovery time of the diode 5.
Description
【0001】[0001]
本考案は昇圧チョッパ回路に関するもので、さらに詳しく言えば、ダイオード の逆回復時間に発生するサージ電圧が抑制できる昇圧チョッパ回路に関するもの である。 The present invention relates to a boost chopper circuit, and more specifically, to a boost chopper circuit capable of suppressing a surge voltage generated during reverse recovery time of a diode.
【0002】[0002]
従来の昇圧チョッパ回路を図2により説明する。 A conventional boost chopper circuit will be described with reference to FIG.
【0003】 すなわち、図2において、昇圧チョッパ回路4は、直流電源1と、この直流電 源1間に接続されたチョークコイル3とスイッチング素子2との直列回路と、こ のスイッチング素子2と並列に接続されたダイオード5とコンデンサ6との直列 回路とからなり、このコンデンサ6の端子間から出力を得るようにしたものであ る。That is, in FIG. 2, the step-up chopper circuit 4 includes a direct current power source 1, a series circuit of a choke coil 3 and a switching element 2 connected between the direct current power source 1, and a parallel circuit of the switching element 2. It is composed of a diode 5 and a capacitor 6 connected in series, and an output is obtained from between the terminals of the capacitor 6.
【0004】 このような昇圧チョッパ回路4は、スイッチング素子2をオンさせると、直流 電源1の電圧がチョークコイル3に印加されてエネルギーが蓄積され、スイッチ ング素子2をオフさせると、このエネルギーはダイオード5を介してコンデンサ 6に移され、コンデンサ6の電圧を直流電源1の電圧より高くするものである。In such a boost chopper circuit 4, when the switching element 2 is turned on, the voltage of the DC power supply 1 is applied to the choke coil 3 to accumulate energy, and when the switching element 2 is turned off, this energy is reduced. It is transferred to the capacitor 6 through the diode 5 and makes the voltage of the capacitor 6 higher than the voltage of the DC power supply 1.
【0005】 上記した反復動作において、スイッチング素子2がオンした時、ダイオード5 の逆回復時間中はコンデンサ6が短絡状態にあり、コンデンサ6からダイオード 5、スイッチング素子2を介して大電流が流れ、逆回復時間の経過後はこの電流 は瞬時に零になる。このため、ダイオード5にサージ電圧が印加される。In the above-described repetitive operation, when the switching element 2 is turned on, the capacitor 6 is in a short-circuit state during the reverse recovery time of the diode 5, and a large current flows from the capacitor 6 through the diode 5 and the switching element 2. After the reverse recovery time has elapsed, this current instantly becomes zero. Therefore, the surge voltage is applied to the diode 5.
【0006】 図2の昇圧チョッパ回路では、上記サージ電圧を抑制するため、ダイオード5 と並列に抵抗R1とコンデンサC1との直列回路が接続され、ダイオード5の逆 回復時間の経過後は上記電流をこの直列回路に流して電流が瞬時に零にならない ようにしていた。In the step-up chopper circuit of FIG. 2, in order to suppress the surge voltage, a series circuit of a resistor R1 and a capacitor C1 is connected in parallel with the diode 5, and after the reverse recovery time of the diode 5 elapses, the current is reduced. The current was made to flow to this series circuit so that the current did not instantly become zero.
【0007】[0007]
上記した従来の昇圧チョッパ回路は、ダイオード5の逆回復時間に流れていた 電流が逆回復時間の経過後は抵抗R1に流れるため、抵抗R1による損失が増大 し、効率が低下するという問題があった。 The conventional boost chopper circuit described above has a problem that the current flowing in the reverse recovery time of the diode 5 flows into the resistor R1 after the reverse recovery time elapses, so that the loss due to the resistor R1 increases and the efficiency decreases. It was
【0008】[0008]
上記課題を解決するため、本考案は、直流電源と、この直流電源間に接続され たチョークコイルとスイッチング素子との直列回路と、このスイッチング素子と 並列に接続されたダイオードとコンデンサとの直列回路とからなり、このコンデ ンサの端子間から出力を得るようにした昇圧チョッパ回路において、前記ダイオ ードと並列にコンデンサとダイオードとの直列回路を接続し、この直列接続点を 直流電源の一端に接続したことを特徴とするものである。 In order to solve the above problems, the present invention provides a series circuit of a DC power supply, a choke coil connected between the DC power supplies and a switching element, and a series circuit of a diode and a capacitor connected in parallel with the switching element. In a boost chopper circuit that obtains output from between the terminals of this capacitor, connect a series circuit of a capacitor and a diode in parallel with the diode, and connect this series connection point to one end of the DC power supply. It is characterized by being connected.
【0009】[0009]
従って、逆回復時間の経過後、電流はコンデンサとダイオードとの直列回路を 流れ、このコンデンサは出力側のコンデンサの電位まで充電される。 Therefore, after the reverse recovery time has elapsed, the current flows through the series circuit of the capacitor and the diode, and this capacitor is charged to the potential of the capacitor on the output side.
【0010】[0010]
図1は、本考案の昇圧チョッパ回路の回路図で、図2と同じ機能を有する部分 には同じ符号を付して以下の説明を省略する。 FIG. 1 is a circuit diagram of a boost chopper circuit according to the present invention. The parts having the same functions as those in FIG.
【0011】 本考案の特徴は、ダイオード5と並列にコンデンサC1とダイオードD1との 直列回路を接続し、この直列接続点を直流電源1の一端に接続したものである。A feature of the present invention is that a series circuit of a capacitor C1 and a diode D1 is connected in parallel with the diode 5, and this series connection point is connected to one end of the DC power supply 1.
【0012】 上記コンデンサC1とダイオードD1との直列回路は、ダイオード5の近くに 配置してリード線のインダクタンスが小さくなるようにする。The series circuit of the capacitor C1 and the diode D1 is arranged near the diode 5 so that the inductance of the lead wire becomes small.
【0013】 すなわち、ダイオード5の逆回復時間に流れていた電流は、逆回復時間の経過 後はコンデンサC1とダイオードD1との直列回路を流れ、コンデンサC1をコ ンデンサ6と同じ電位まで充電するので、逆回復時間の経過後の電流は瞬時に零 にならず、ダイオード5に対するサージ電圧が低減される。That is, the current flowing during the reverse recovery time of the diode 5 flows through the series circuit of the capacitor C1 and the diode D1 after the reverse recovery time elapses, and charges the capacitor C1 to the same potential as the capacitor 6. The current after the reverse recovery time does not instantly become zero, and the surge voltage on the diode 5 is reduced.
【0014】[0014]
上記したとおりであるから、本考案は、抵抗による損失を発生させずにダイオ ード5のサージ電圧の発生を抑制することができ、昇圧チョッパ回路の高効率化 に寄与することができる。 As described above, the present invention can suppress the generation of the surge voltage of the diode 5 without generating the loss due to the resistance, and can contribute to the high efficiency of the boost chopper circuit.
【図1】本考案の昇圧チョッパ回路の回路図である。FIG. 1 is a circuit diagram of a boost chopper circuit of the present invention.
【図2】従来の昇圧チョッパ回路の回路図である。FIG. 2 is a circuit diagram of a conventional boost chopper circuit.
2 スイッチング素子 3 チョークコイル 4 昇圧チョッパ回路 5 ダイオード 6 コンデンサ 2 Switching element 3 Choke coil 4 Boost chopper circuit 5 Diode 6 Capacitor
Claims (1)
たチョークコイルとスイッチング素子との直列回路と、
このスイッチング素子と並列に接続されたダイオードと
コンデンサとの直列回路とからなり、このコンデンサの
端子間から出力を得るようにした昇圧チョッパ回路にお
いて、前記ダイオードと並列にコンデンサとダイオード
との直列回路を接続し、この直列接続点を直流電源の一
端に接続したことを特徴とする昇圧チョッパ回路。[Claims for utility model registration] [Claim 1] A DC power supply, a series circuit of a choke coil and a switching element connected between the DC power supplies,
In a step-up chopper circuit that is composed of a series circuit of a diode and a capacitor connected in parallel with this switching element, and obtains an output from between the terminals of this capacitor, a series circuit of the capacitor and the diode is provided in parallel with the diode. A step-up chopper circuit, characterized in that it is connected and this series connection point is connected to one end of a DC power supply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991062059U JP2572467Y2 (en) | 1991-07-10 | 1991-07-10 | Boost chopper circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991062059U JP2572467Y2 (en) | 1991-07-10 | 1991-07-10 | Boost chopper circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH059186U true JPH059186U (en) | 1993-02-05 |
JP2572467Y2 JP2572467Y2 (en) | 1998-05-25 |
Family
ID=13189184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991062059U Expired - Fee Related JP2572467Y2 (en) | 1991-07-10 | 1991-07-10 | Boost chopper circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2572467Y2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5056074U (en) * | 1973-09-18 | 1975-05-27 | ||
JPS5160168U (en) * | 1974-11-06 | 1976-05-12 | ||
JPH0614106U (en) * | 1991-12-04 | 1994-02-22 | 河崎 淳三郎 | Garbage container |
JP2012178946A (en) * | 2011-02-28 | 2012-09-13 | Honda Motor Co Ltd | Direct current voltage booster |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59191886U (en) * | 1983-06-07 | 1984-12-19 | 株式会社 金門製作所 | switching regulator |
-
1991
- 1991-07-10 JP JP1991062059U patent/JP2572467Y2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59191886U (en) * | 1983-06-07 | 1984-12-19 | 株式会社 金門製作所 | switching regulator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5056074U (en) * | 1973-09-18 | 1975-05-27 | ||
JPS5160168U (en) * | 1974-11-06 | 1976-05-12 | ||
JPH0614106U (en) * | 1991-12-04 | 1994-02-22 | 河崎 淳三郎 | Garbage container |
JP2012178946A (en) * | 2011-02-28 | 2012-09-13 | Honda Motor Co Ltd | Direct current voltage booster |
Also Published As
Publication number | Publication date |
---|---|
JP2572467Y2 (en) | 1998-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |