JPS5950115U - Protection circuit for switching type amplifier - Google Patents
Protection circuit for switching type amplifierInfo
- Publication number
- JPS5950115U JPS5950115U JP14675982U JP14675982U JPS5950115U JP S5950115 U JPS5950115 U JP S5950115U JP 14675982 U JP14675982 U JP 14675982U JP 14675982 U JP14675982 U JP 14675982U JP S5950115 U JPS5950115 U JP S5950115U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- final
- protection circuit
- stage switching
- switching type
- 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
- Amplifiers (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図は従来のスイッチング形増幅器の保護回路の一構
成例を示す回路図、第２図は・この考案の一実施例の構
成を示す回路図、第３図は同実施例の電流制限特性を示
す特性図である。
５・・・終段スイッチング回路、２４・・・電流検出回
路、２９・・・入力制御回路。Figure 1 is a circuit diagram showing an example of the configuration of a conventional switching amplifier protection circuit, Figure 2 is a circuit diagram showing the configuration of an embodiment of this invention, and Figure 3 is the current limiting characteristic of the same embodiment. FIG. 5... Final stage switching circuit, 24... Current detection circuit, 29... Input control circuit.
Claims (1)
終段スイッチング回路を過負荷状態から保護するスイッ
チング形増幅器の保護回路において、前記終段スイッチ
ング回路に流れる電流をこの終段スイッチング回路の出
力信号と逆位相の信号として検出する電流検出回路と、
この電流検出回路の検出出力信号と前記終段スイッチン
グ回路の出力信号とに基づいて前記入力信号の振幅を制
御する入力制御回路とを設けて構成したことを特徴とす
るスイッチング形増幅器の保護回路。In a protection circuit for a switching amplifier that protects a final-stage switching circuit that power-amplifies and outputs a pulse signal corresponding to an input signal from an overload state, the current flowing through the final-stage switching circuit is used as the output signal of the final-stage switching circuit. a current detection circuit that detects a signal with a phase opposite to that of the current detection circuit;
A protection circuit for a switching amplifier, comprising: an input control circuit that controls the amplitude of the input signal based on the detection output signal of the current detection circuit and the output signal of the final stage switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675982U JPS5950115U (en) | 1982-09-28 | 1982-09-28 | Protection circuit for switching type amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675982U JPS5950115U (en) | 1982-09-28 | 1982-09-28 | Protection circuit for switching type amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5950115U true JPS5950115U (en) | 1984-04-03 |
Family
ID=30326573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14675982U Pending JPS5950115U (en) | 1982-09-28 | 1982-09-28 | Protection circuit for switching type amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005538626A (en) * | 2002-09-11 | 2005-12-15 | ディーエムビー テクノロジー カンパニー リミテッド | Pop noise elimination circuit and pop noise elimination method in digital audio amplifier using dual power supply |
| JP2011143658A (en) * | 2010-01-15 | 2011-07-28 | Ricoh Co Ltd | Recording head driving apparatus, driving method, driving program, and inkjet recording apparatus |
-
1982
- 1982-09-28 JP JP14675982U patent/JPS5950115U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005538626A (en) * | 2002-09-11 | 2005-12-15 | ディーエムビー テクノロジー カンパニー リミテッド | Pop noise elimination circuit and pop noise elimination method in digital audio amplifier using dual power supply |
| JP2011143658A (en) * | 2010-01-15 | 2011-07-28 | Ricoh Co Ltd | Recording head driving apparatus, driving method, driving program, and inkjet recording apparatus |
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