JPH0213374U - - Google Patents
Info
- Publication number
- JPH0213374U JPH0213374U JP9163088U JP9163088U JPH0213374U JP H0213374 U JPH0213374 U JP H0213374U JP 9163088 U JP9163088 U JP 9163088U JP 9163088 U JP9163088 U JP 9163088U JP H0213374 U JPH0213374 U JP H0213374U
- Authority
- JP
- Japan
- Prior art keywords
- audio output
- output circuit
- power supply
- flyback
- transistor
- 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 2
- 238000009499 grossing Methods 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Television Receiver Circuits (AREA)
- Details Of Television Scanning (AREA)
Description
第１図は本考案を実施した音声出力回路用電源
回路図である。第２図は第１図の各部分の電流波
形図である。第３図は従来例の音声出力回路用電
源回路図である。
１……フライバツクトランス、２……音声出力
回路、３……スピーカー、Ｒ１〜Ｒ６……抵抗、
Ｑ１，Ｑ２……トランジスタ、Ｃ１〜Ｃ３……コ
ンデンサ、Ｄ１〜Ｄ３……ダイオード、Ｄ４……
ツエナーダイオード。
FIG. 1 is a power supply circuit diagram for an audio output circuit implementing the present invention. FIG. 2 is a current waveform diagram of each part of FIG. 1. FIG. 3 is a power supply circuit diagram for a conventional audio output circuit. 1...Flyback transformer, 2...Audio output circuit, 3...Speaker, R1 to R6 ...Resistor,
Q1 , Q2 ...Transistor, C1 - C3 ...Capacitor, D1 - D3 ...Diode, D4 ...
Zener diode.
Claims (1)
クパルスを整流して音声出力回路への直流電源電
圧を得る音声出力回路用電源回路において、音声
出力回路側がフライバツクトランスに対し定負荷
となるように、前記フライバツクパルスを平滑す
るコンデンサと並列に負荷電流分流用のトランジ
スタを設けると共に該トランジスタを音声信号レ
ベルに基づいて制御するようにしたことを特徴と
する音声出力回路用電源回路。 In a power supply circuit for an audio output circuit that rectifies flyback pulses obtained from a flyback transformer to obtain a DC power supply voltage for an audio output circuit, the flyback pulse is rectified so that the audio output circuit side is a constant load to the flyback transformer. 1. A power supply circuit for an audio output circuit, characterized in that a transistor for diverting load current is provided in parallel with a capacitor for smoothing pulses, and the transistor is controlled based on an audio signal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9163088U JPH0213374U (en) | 1988-07-11 | 1988-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9163088U JPH0213374U (en) | 1988-07-11 | 1988-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0213374U true JPH0213374U (en) | 1990-01-26 |
Family
ID=31316098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9163088U Pending JPH0213374U (en) | 1988-07-11 | 1988-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0213374U (en) |
-
1988
- 1988-07-11 JP JP9163088U patent/JPH0213374U/ja active Pending