JPS59117293U - Converter overcurrent protection circuit - Google Patents
Converter overcurrent protection circuitInfo
- Publication number
- JPS59117293U JPS59117293U JP1050083U JP1050083U JPS59117293U JP S59117293 U JPS59117293 U JP S59117293U JP 1050083 U JP1050083 U JP 1050083U JP 1050083 U JP1050083 U JP 1050083U JP S59117293 U JPS59117293 U JP S59117293U
- Authority
- JP
- Japan
- Prior art keywords
- protection circuit
- reference signal
- signal
- overcurrent protection
- converter
- 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
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は一般的コンバータ回路図、第２図は従来の過電
流保護回路図、第３図は本考案の一実施例回路図である
。図において１は直流電源、２はスイッチング用主トラ
ンジスタ、３は出カドランス、４は整流回路、５は平滑
回路、６は変流器、７は過電流保護回路、ＩＣ□は制御
用ＩＣ，Ｓは出力制御信号、◎は基準電源端子、■は導
通幅制限端子、Ｃ１，Ｃ２はコンデンサ、Ｑ□、 Ｑ２
はスイッチ素子（トランジスタ）、Ｒ□、 Ｒ２，Ｒ３
は抵抗、Ｄｌ。
Ｄ２は定電圧ダイオード、Ｄｏ、 Ｄ３． Ｄ、、 Ｄ
、はダイオードである。FIG. 1 is a general converter circuit diagram, FIG. 2 is a conventional overcurrent protection circuit diagram, and FIG. 3 is a circuit diagram of an embodiment of the present invention. In the figure, 1 is a DC power supply, 2 is a switching main transistor, 3 is an output transformer, 4 is a rectifier circuit, 5 is a smoothing circuit, 6 is a current transformer, 7 is an overcurrent protection circuit, IC□ is a control IC, S is the output control signal, ◎ is the reference power supply terminal, ■ is the conduction width limit terminal, C1 and C2 are the capacitors, Q□, Q2
is a switch element (transistor), R□, R2, R3
is the resistance, Dl. D2 is a constant voltage diode, Do, D3. D,, D
, is a diode.
Claims (2)
ング用主トランジスタの制御用ＩＣの基準電源端子及び
導通幅制限端子間にコンデンサを接続すると共に、電流
検出信号と基準信号との比較信号によりスイッチするス
イッチ素子を抵抗を介して前記コンデンサの両端に接続
し、且つ前記電流検出信号と第２の基準信号との比較信
号を前記導通幅制限端子に接続する回路を備えたコンバ
ータの過電流保護回路。(1) A capacitor is connected between the reference power supply terminal and the conduction width limiting terminal of the control IC of the switching main transistor connected to the primary winding side of the output transformer, and a comparison signal between the current detection signal and the reference signal is an overcurrent of a converter comprising a circuit that connects a switching element to be switched by a resistor to both ends of the capacitor via a resistor, and connects a comparison signal between the current detection signal and a second reference signal to the conduction width limiting terminal. protection circuit.
設定したことを特徴とする実用新案登録請求の範囲第１
項記載のコンバータの過電流保護回路。(2) Utility model registration claim 1 characterized in that the second reference signal (potential) is set to a higher value than the first reference signal.
Overcurrent protection circuit for the converter described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1050083U JPS59117293U (en) | 1983-01-27 | 1983-01-27 | Converter overcurrent protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1050083U JPS59117293U (en) | 1983-01-27 | 1983-01-27 | Converter overcurrent protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59117293U true JPS59117293U (en) | 1984-08-08 |
Family
ID=30141934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1050083U Pending JPS59117293U (en) | 1983-01-27 | 1983-01-27 | Converter overcurrent protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59117293U (en) |
-
1983
- 1983-01-27 JP JP1050083U patent/JPS59117293U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59117293U (en) | Converter overcurrent protection circuit | |
| JPS60144788U (en) | DC/DC converter | |
| JPS59117294U (en) | Converter overcurrent protection circuit | |
| JPS6093493U (en) | Switching power supply overcurrent protection circuit | |
| JPS59138913U (en) | power circuit | |
| JPS58156391U (en) | Reset circuit in switching regulator | |
| JPS5999203U (en) | power supply circuit | |
| JPS60186887U (en) | power supply | |
| JPS6198394U (en) | ||
| JPS58150388U (en) | DC power circuit | |
| JPS60162991U (en) | Inrush current prevention circuit using AC transformer | |
| JPS5925925U (en) | Output voltage jump prevention circuit | |
| JPS60108196U (en) | Inrush current prevention circuit | |
| JPS5986890U (en) | Power reset circuit | |
| JPS6089787U (en) | switching power supply | |
| JPH03106882U (en) | ||
| JPS59145289U (en) | switching power supply | |
| JPS60153030U (en) | Electrostatic induction thyristor gate drive circuit | |
| JPS5999695U (en) | power circuit | |
| JPS6089786U (en) | switching power supply | |
| JPS58686U (en) | rectifier circuit | |
| JPS6113589U (en) | switching power supply | |
| JPS5881618U (en) | DC power supply | |
| JPS599780U (en) | switched capacitor transformer | |
| JPS6110042U (en) | switch circuit |