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1 results about "Modulation transformer" patented technology
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A modulation transformer is an audio-frequency transformer that forms a major part of most AM transmitters. The primary winding of a modulation transformer is fed by an audio amplifier that has about 1/2 of the rated input power of the transmitter's final amplifier stage. The secondary winding is in series with the power supply of that final radio-frequency amplifier stage, thereby allowing the audio signal to lower and raise the instantaneous DC supply voltage of the power amplifier (PA) tube or transistor. Considering that the PA device is operated as a class-C amplifier, i.e. as a switch, the modulation transformer is responsible for the amplitude modulation (AM) of the transmitter.
A photovoltaic time series anomaly detection method of self-supervised three-domain contrast learning combined with prior modulation transformer
The application discloses a photovoltaic time sequence anomaly detection method of self-supervised three-domain contrast learning combined with prior modulation Transformer, and comprises the following steps: data preprocessing and window division; three-domain contrast learning and anomaly screening; point-level fine detection of prior modulation Transformer; multi-granularity anomaly fusion and output; the application constructs a multi-stage and hierarchical cooperative detection mechanism to realize accurate positioning of anomalies.
Owner:NANJING UNIV OF INFORMATION SCI & TECH