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Flame detector trapezoidal excitation generator output control circuit and method
Flame detector trapezoidal excitation generator output control circuit and method
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机译:火焰探测器梯形励磁发电机输出控制电路及方法
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摘要
An electronic circuit for generating a trapezoidal excitation waveform includes a controllable frequency source and a trapezoidal waveform generator. The controllable frequency source generates a source waveform that, upon energization thereof, has an initial frequency value, and decreases in frequency to a substantially constant frequency value a time period after energization. The trapezoidal waveform generator receives the source waveform and, in response, generates a trapezoidal waveform at least when the source waveform frequency attains the substantially constant frequency value.
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