JPS63114510U - - Google Patents
Info
- Publication number
- JPS63114510U JPS63114510U JP16718486U JP16718486U JPS63114510U JP S63114510 U JPS63114510 U JP S63114510U JP 16718486 U JP16718486 U JP 16718486U JP 16718486 U JP16718486 U JP 16718486U JP S63114510 U JPS63114510 U JP S63114510U
- Authority
- JP
- Japan
- Prior art keywords
- output
- transistors
- push
- pull
- circuits
- 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
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来例を示す回路図である。
１……プリドライバ段、１８，１９……保護ト
ランジスタ、２３……スピーカ、３２，３３，３
８，３９……スイツチングトランジスタ、４０，
４１……定電流源、４６，４７……コンデンサ。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing a conventional example. 1... Pre-driver stage, 18, 19... Protection transistor, 23... Speaker, 32, 33, 3
8, 39... switching transistor, 40,
41... Constant current source, 46, 47... Capacitor.
Claims (1)
続された互いに導電型の異なるプツシユプル接続
の第１及び第２の出力トランジスタと、該各出力
トランジスタにプツシユプル出力を供給する手段
と、上記第１及び第２の出力トランジスタの各エ
ミツタに接続された第１及び第２の分圧回路と、
上記分圧回路の出力端にベースが接続されエミツ
タが負荷端に接続された第１及び第２の保護トラ
ンジスタと、上記第１及び第２の保護トランジス
タのコレクタ出力に応じてスイツチングし上記出
力トランジスタへのプツシユプル出力の供給を阻
止する第１及び第２のスイツチング回路と、直流
電源により充電されて上記スイツチング回路にス
イツチング電流を供給する第１及び第２の充電回
路とを有することを特徴とする電力増幅器。 push-pull connected first and second output transistors of mutually different conductivity types whose emitters are connected to a load end via an emitter resistor; means for supplying a push-pull output to each of the output transistors; first and second voltage divider circuits connected to each emitter of the second output transistor;
first and second protection transistors whose bases are connected to the output end of the voltage divider circuit and whose emitters are connected to the load end; and the output transistors are switched in accordance with the collector outputs of the first and second protection transistors. The device is characterized by comprising first and second switching circuits that block the supply of push-pull output to the switching circuit, and first and second charging circuits that are charged by a DC power source and supply switching current to the switching circuit. power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16718486U JPS63114510U (en) | 1986-10-30 | 1986-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16718486U JPS63114510U (en) | 1986-10-30 | 1986-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63114510U true JPS63114510U (en) | 1988-07-23 |
Family
ID=31098878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16718486U Pending JPS63114510U (en) | 1986-10-30 | 1986-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63114510U (en) |
-
1986
- 1986-10-30 JP JP16718486U patent/JPS63114510U/ja active Pending