JPS6034618U - Protection circuit for capacitor inrush current control circuit - Google Patents
Protection circuit for capacitor inrush current control circuitInfo
- Publication number
- JPS6034618U JPS6034618U JP12413283U JP12413283U JPS6034618U JP S6034618 U JPS6034618 U JP S6034618U JP 12413283 U JP12413283 U JP 12413283U JP 12413283 U JP12413283 U JP 12413283U JP S6034618 U JPS6034618 U JP S6034618U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- inrush current
- capacitor
- signal
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
- Emergency Protection Circuit Devices (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、本考案の背景をなす突入電流制御回路の一例
の電気的構成図、第2図は、第1図の回路の動作説明図
、第3図は、本考案実施例の電気的構成図、第4図は、
第3図の回路の動作説明図である。
1・・・スイッチング・レギレーションO路l、2・・
・突入電流制御回路、Q・・・トランジスタ、A・・・
演算増幅器、CNT・・・制御回路、COMPI、CO
MP2・・・比較器、FFI、FF2・・・フリップ・
フロップ回路。FIG. 1 is an electrical configuration diagram of an example of an inrush current control circuit that forms the background of the present invention, FIG. 2 is an explanatory diagram of the operation of the circuit in FIG. 1, and FIG. The configuration diagram, Figure 4, is
FIG. 4 is an explanatory diagram of the operation of the circuit of FIG. 3; 1... Switching regulation O path l, 2...
・Inrush current control circuit, Q...transistor, A...
Operational amplifier, CNT...control circuit, COMPI, CO
MP2... Comparator, FFI, FF2... Flip.
flop circuit.
Claims (1)
コレクタ回路が直列に接続されたトランジスタと、コン
デンサの両端電圧に基づく信号と基準信号との差により
トランジスタを制御して電源投入時の突入電流を制御す
る制御手段とを有するコンデンサの突入電流制御回路の
ための保護回路であって、 電源電圧を基準値と比較し電源電圧の確立を検出する第
1の比較器、 コンデンサの両端電圧を基準値と比較し、その電圧の低
下を検出する第2の比較器、 “第1の比較器の電圧
確立検出信号によってセットされ、下記の第2のフリッ
プ・フロップ回路がセットされたことによりリセットさ
れる第1のフリップ・フロップ回路、 および この第1のフリップ・フロップ回路がセットされたこと
によってセットされ、前記第2の比較器の電圧低下信号
によってリセットされ、リセット時の出力信号をコンデ
ンサの突入電流制御回路の制御手段に、トランジスタを
カッ[・・オフさせる信号として与える第2のフリップ
・フロップ回路を有する保護回路。[Scope of claim for utility model registration] Emitter/
A capacitor inrush current control circuit that includes a transistor whose collector circuit is connected in series, and a control means that controls the transistor based on the difference between a signal based on the voltage across the capacitor and a reference signal to control the inrush current when the power is turned on. A protection circuit for: a first comparator that compares the power supply voltage with a reference value and detects the establishment of the power supply voltage; and a second comparator that compares the voltage across the capacitor with the reference value and detects a drop in the voltage. a first flip-flop circuit set by the voltage establishment detection signal of the first comparator and reset by the setting of a second flip-flop circuit described below; It is set when the flip-flop circuit is set, and is reset by the voltage drop signal of the second comparator, and the output signal at the time of reset is sent to the control means of the inrush current control circuit of the capacitor, and the transistor is turned on. A protection circuit having a second flip-flop circuit that is applied as a signal to be turned off.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12413283U JPS6034618U (en) | 1983-08-10 | 1983-08-10 | Protection circuit for capacitor inrush current control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12413283U JPS6034618U (en) | 1983-08-10 | 1983-08-10 | Protection circuit for capacitor inrush current control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6034618U true JPS6034618U (en) | 1985-03-09 |
Family
ID=30283089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12413283U Pending JPS6034618U (en) | 1983-08-10 | 1983-08-10 | Protection circuit for capacitor inrush current control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034618U (en) |
-
1983
- 1983-08-10 JP JP12413283U patent/JPS6034618U/en active Pending
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