JPH02118315U - - Google Patents
Info
- Publication number
- JPH02118315U JPH02118315U JP2799889U JP2799889U JPH02118315U JP H02118315 U JPH02118315 U JP H02118315U JP 2799889 U JP2799889 U JP 2799889U JP 2799889 U JP2799889 U JP 2799889U JP H02118315 U JPH02118315 U JP H02118315U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- amplifier
- capacitor
- turned
- protection circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例に構成を示す回路
図、第２図は同考案の動作を説明するための波形
図、第３図は従来のアンプの保護回路の構成を示
す回路図である。
２ｂ…トランジスタ（第１のスイツチング素子
）、２ｃ…トランジスタ（第２のスイツチング素
子）、Ｃ１…コンデンサ（第１のコンデンサ）、
Ｃ３…コンデンサ（第２のコンデンサ）、Ｒ５…
抵抗。
Figure 1 is a circuit diagram showing the configuration of an embodiment of this invention, Figure 2 is a waveform diagram to explain the operation of the invention, and Figure 3 is a circuit diagram showing the configuration of a conventional amplifier protection circuit. be. 2b...Transistor (first switching element), 2c...Transistor (second switching element), C1 ...Capacitor (first capacitor),
C3 ...Capacitor (second capacitor), R5 ...
resistance.
Claims (1)
ツチング素子、抵抗および第１のコンデンサと、
前記第１のコンデンサの充電電圧によつてオン、
オフ動作する第２のスイツチング素子とを備え、
前記第２のスイツチング素子のオン、オフ動作に
よつてスピーカとアンプの出力端とを接続または
遮断するアンプの保護回路において、前記第１の
スイツチング素子の一端と他端との間に介挿され
る第２のコンデンサを具備したことを特徴とする
アンプの保護回路。 a first switching element, a resistor, and a first capacitor connected in series between a power supply and a ground;
turned on by the charging voltage of the first capacitor;
and a second switching element that is turned off,
In an amplifier protection circuit that connects or disconnects a speaker and an output end of an amplifier by turning on and off the second switching element, the amplifier is inserted between one end and the other end of the first switching element. An amplifier protection circuit characterized by comprising a second capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2799889U JPH02118315U (en) | 1989-03-10 | 1989-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2799889U JPH02118315U (en) | 1989-03-10 | 1989-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02118315U true JPH02118315U (en) | 1990-09-21 |
Family
ID=31250986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2799889U Pending JPH02118315U (en) | 1989-03-10 | 1989-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02118315U (en) |
-
1989
- 1989-03-10 JP JP2799889U patent/JPH02118315U/ja active Pending