JPH01169811U - - Google Patents
Info
- Publication number
- JPH01169811U JPH01169811U JP6849688U JP6849688U JPH01169811U JP H01169811 U JPH01169811 U JP H01169811U JP 6849688 U JP6849688 U JP 6849688U JP 6849688 U JP6849688 U JP 6849688U JP H01169811 U JPH01169811 U JP H01169811U
- Authority
- JP
- Japan
- Prior art keywords
- driving
- drive signal
- power supply
- frequency identification
- load
- 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
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Voltage And Current In General (AREA)
- Amplifiers (AREA)
- Protection Of Static Devices (AREA)
Description
第１図は本考案の一実施例の基本的な構成を示
すブロツク図、第２図は出力段１１の動作を説明
するための波形図、第３図〜第５図は第１図に示
される実施例において各部に導出される信号の波
形を示すグラフ、第６図は典型的な先行技術の基
本的な構成を示す電気回路図である。
１１……出力段、１２……スイツチング手段、
１４，１５……出力端子、１６……スピーカ、１
７〜２０……トランジスタ、２２，２７……高域
フイルタ、２３，２８……整流回路、２４，２９
……バツフア、２５……ＯＲゲート。
FIG. 1 is a block diagram showing the basic configuration of an embodiment of the present invention, FIG. 2 is a waveform diagram for explaining the operation of the output stage 11, and FIGS. 3 to 5 are shown in FIG. 1. FIG. 6 is a graph showing the waveforms of signals derived to each part in the embodiment described above, and FIG. 6 is an electric circuit diagram showing the basic configuration of a typical prior art. 11... Output stage, 12... Switching means,
14, 15...Output terminal, 16...Speaker, 1
7-20... Transistor, 22, 27... High-pass filter, 23, 28... Rectifier circuit, 24, 29
...Batsuhua, 25...OR gate.
Claims (1)
で駆動する駆動手段と、 負荷の駆動信号が入力される周波数識別手段と
、 電源と上記駆動手段との間の電源ラインに介在
され、周波数識別手段出力に基づいて導通／遮断
制御されるスイツチング手段とを含むことを特徴
とする異常電圧保護回路。[Claims for Utility Model Registration] Driving means connected to a power supply and driving a load with a drive signal of a specific frequency, frequency identification means into which the load drive signal is input, and a power source between the power supply and the driving means. 1. An abnormal voltage protection circuit characterized by comprising: switching means which is interposed in a line and which conducts/cuts off based on the output of the frequency identification means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6849688U JPH01169811U (en) | 1988-05-23 | 1988-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6849688U JPH01169811U (en) | 1988-05-23 | 1988-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01169811U true JPH01169811U (en) | 1989-11-30 |
Family
ID=31293811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6849688U Pending JPH01169811U (en) | 1988-05-23 | 1988-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01169811U (en) |
-
1988
- 1988-05-23 JP JP6849688U patent/JPH01169811U/ja active Pending
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