发明名称 |
SOUND ACTUATED LIGHT SWITCH |
摘要 |
<p>A sound actuated switch including a microphone coupled via an audio amplifier to a reset circuit. When a sound of sufficient intensity is received by the microphone a reset signal is supplied to the counter portion of an oscillator and counter circuit. The counter then begins counting oscillations and produces an "on" control signal until a predetermined count is reached, at which time an "off" control signal is produced. The control signal is supplied to the gate of a switching triac in a switch circuit. The presence of the on control signal causes the switching triac to electrically connect an AC power source to a load, typically a light. A simple, high efficiency DC power supply is also disclosed.</p> |
申请公布号 |
EP0067502(B1) |
申请公布日期 |
1988.11.02 |
申请号 |
EP19820301411 |
申请日期 |
1982.03.18 |
申请人 |
SMITH, BLAINE MARTIN;TAYLOR, JAMES A. |
发明人 |
SMITH, BLAINE MARTIN |
分类号 |
H03K17/28;H03K17/94;(IPC1-7):H03K17/94 |
主分类号 |
H03K17/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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