JPH0379524U - - Google Patents
Info
- Publication number
- JPH0379524U JPH0379524U JP14105189U JP14105189U JPH0379524U JP H0379524 U JPH0379524 U JP H0379524U JP 14105189 U JP14105189 U JP 14105189U JP 14105189 U JP14105189 U JP 14105189U JP H0379524 U JPH0379524 U JP H0379524U
- Authority
- JP
- Japan
- Prior art keywords
- power amplifier
- supply circuit
- power supply
- power
- voltage
- 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 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図Ａ及び、第１図Ｂはこの考案に係るパワ
ーアンプの出力段電源回路の実施例を示し、第１
図Ａはこの考案の回路図、第１図Ｂは他の応用例
を示す回路図である。第２図Ａ及び第２図Ｂは従
来例の回路図である。
主な符号の説明、Ｒ１，Ｒ２……コレクタ電流
制限抵抗、Ｄ１，Ｄ２……コレクタ接続ダイオー
ド、Ｑ１，Ｑ３……ドライブトランジスタ、Ｑ２
，Ｑ４……フアイナルトランジスタ、Ｓ１，Ｓ２
……最大出力切換えスイツチ、Ｄ３〜Ｄ６……高
圧整流用ダイオード、Ｄ７〜Ｄ１０……低圧整流
用ダイオード、Ｔ１……電源トランス、Ｃ１〜Ｃ
４……分圧コンデンサ。
FIG. 1A and FIG. 1B show an embodiment of the output stage power supply circuit of a power amplifier according to this invention, and
Figure A is a circuit diagram of this invention, and Figure 1B is a circuit diagram showing another example of application. FIGS. 2A and 2B are circuit diagrams of a conventional example. Explanation of main symbols, R 1 , R 2 ... Collector current limiting resistor, D 1 , D 2 ... Collector connection diode, Q 1 , Q 3 ... Drive transistor, Q 2
, Q 4 ... Final transistor, S 1 , S 2
... Maximum output selector switch, D 3 - D 6 ... High voltage rectifier diode, D 7 - D 10 ... Low voltage rectifier diode, T 1 ... Power transformer, C 1 - C
4 ...Dividing voltage capacitor.
Claims (1)
ーアンプの出力段に電源を供給する電圧切換え可
能な電源回路において、 前記パワーアンプの最終段トランジスタに低電
圧を印加するとき前段のトランジスタと、高電圧
電源回路との間に抵抗が挿入するように構成した
ことを特徴とするパワーアンプの出力段電源回路
。[Claim for Utility Model Registration] In a voltage switchable power supply circuit that supplies power to the output stage of a power amplifier in order to vary the maximum output of the power amplifier, when a low voltage is applied to the last stage transistor of the power amplifier. An output stage power supply circuit for a power amplifier, characterized in that a resistor is inserted between a preceding stage transistor and a high voltage power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14105189U JPH0379524U (en) | 1989-12-07 | 1989-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14105189U JPH0379524U (en) | 1989-12-07 | 1989-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0379524U true JPH0379524U (en) | 1991-08-14 |
Family
ID=31687981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14105189U Pending JPH0379524U (en) | 1989-12-07 | 1989-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0379524U (en) |
-
1989
- 1989-12-07 JP JP14105189U patent/JPH0379524U/ja active Pending
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