JPS63120582U - - Google Patents
Info
- Publication number
- JPS63120582U JPS63120582U JP1247187U JP1247187U JPS63120582U JP S63120582 U JPS63120582 U JP S63120582U JP 1247187 U JP1247187 U JP 1247187U JP 1247187 U JP1247187 U JP 1247187U JP S63120582 U JPS63120582 U JP S63120582U
- Authority
- JP
- Japan
- Prior art keywords
- snubber
- diode
- circuit
- switch element
- cathode side
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の実施例を示す回路図であり、
第２図は第１図に示す実施例回路の効果をあらわ
したタイムチヤート、第３図は本考案の応用例を
示す回路図である。第４図は降圧チヨツパ装置に
設置されるスナバ回路の従来例を示す回路図であ
る。
２……直流電源、３……スイツチ素子としての
チヨツパトランジスタ、４……直流リアクトル、
５……負荷、６……フリーホイールダイオード、
７……平滑コンデンサ、１１，１４……スナバダ
イオード、１２，１５……スナバコンデンサ、１
３，１６……スナバ抵抗、２１……第２スナバダ
イオード。
FIG. 1 is a circuit diagram showing an embodiment of the present invention,
FIG. 2 is a time chart showing the effects of the embodiment circuit shown in FIG. 1, and FIG. 3 is a circuit diagram showing an application example of the present invention. FIG. 4 is a circuit diagram showing a conventional example of a snubber circuit installed in a step-down chopper device. 2...DC power supply, 3...Chopper transistor as a switch element, 4...DC reactor,
5...Load, 6...Freewheel diode,
7... Smoothing capacitor, 11, 14... Snubber diode, 12, 15... Snubber capacitor, 1
3, 16... Snubber resistor, 21... Second snubber diode.
Claims (1)
ツチ素子と、このスイツチ素子がオフしたときに
導通して電流を循環させるフリーホイールダイオ
ードとで構成されているチヨツパ装置において、
スナバ抵抗が並列に接続されているスナバダイオ
ードとスナバコンデンサとの直列回路を前記直流
回路の正負極間に接続し、第２のスナバダイオー
ドのカソード側を前記スナバダイオードとスナバ
コンデンサとの結合点に接続するとともに、当該
第２スナバダイオードのアノード側を前記フリー
ホイールダイオードのカソード側に接続すること
を特徴とするチヨツパ装置のスナバ回路。 In a chopper device, which is composed of a switch element connected to a DC circuit to operate on and off, and a freewheel diode that conducts when the switch element is turned off and circulates current,
A series circuit of a snubber diode and a snubber capacitor in which a snubber resistor is connected in parallel is connected between the positive and negative electrodes of the DC circuit, and the cathode side of the second snubber diode is connected to the connection point between the snubber diode and the snubber capacitor. A snubber circuit for a chopper device, characterized in that the anode side of the second snubber diode is connected to the cathode side of the freewheel diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247187U JPH0516874Y2 (en) | 1987-01-30 | 1987-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247187U JPH0516874Y2 (en) | 1987-01-30 | 1987-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120582U true JPS63120582U (en) | 1988-08-04 |
| JPH0516874Y2 JPH0516874Y2 (en) | 1993-05-06 |
Family
ID=30800629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1247187U Expired - Lifetime JPH0516874Y2 (en) | 1987-01-30 | 1987-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516874Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002095245A (en) * | 2000-09-11 | 2002-03-29 | Tohoku Ricoh Co Ltd | Dc-dc converter |
| JP4963724B2 (en) * | 2007-11-15 | 2012-06-27 | 富士通メディアデバイス株式会社 | Switching power supply, control circuit for controlling switching power supply, and switching power supply control method |
| WO2023032190A1 (en) * | 2021-09-06 | 2023-03-09 | 三菱電機株式会社 | Power conversion device |
-
1987
- 1987-01-30 JP JP1247187U patent/JPH0516874Y2/ja not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002095245A (en) * | 2000-09-11 | 2002-03-29 | Tohoku Ricoh Co Ltd | Dc-dc converter |
| JP4963724B2 (en) * | 2007-11-15 | 2012-06-27 | 富士通メディアデバイス株式会社 | Switching power supply, control circuit for controlling switching power supply, and switching power supply control method |
| WO2023032190A1 (en) * | 2021-09-06 | 2023-03-09 | 三菱電機株式会社 | Power conversion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516874Y2 (en) | 1993-05-06 |