Double closed-loop-control direct-current speed regulation system based on loss suppression
A double-closed-loop control and loss suppression technology, which is applied in the electronic field, can solve the problems of low stability of the speed control system and the influence of mechanical speed, and achieve the effects of smooth reversal, improved speed and accuracy, and reduced loss
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[0022] Such as figure 1 As shown, the present invention consists of a transformer T, a rectification filter circuit, a double closed-loop control circuit connected to the output end of the rectification filter circuit, a fine-tuning circuit connected with the double closed-loop control circuit, a linear drive circuit connected with the secondary side of the transformer T, A voltage stabilizing circuit connected to the linear drive circuit, an operational amplifier circuit connected to the output terminal of the voltage stabilizing circuit, an output circuit connected to the output terminal of the operational amplifier circuit, and a double closed-loop control circuit and the output circuit. Loss suppression circuit composition. Wherein, both the double closed-loop control circuit and the trimming circuit are connected to the primary side of the transformer T.
[0023] The loss suppression circuit is composed of suppression chip U3, transistor VT7, transistor VT8, transistor VT9...
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