This article briefly introduced the characteristics, inner structure and working principle of the chip UC3842, and presented the working principle and the design method of parameters of the flyback inverter, which, as the power supply of DC motor, is composed using UC3842.

Research of PDF and PDFSV in speed control of DC motors;

Design of embedded software controlling DC motor using DSP;

Application of electronic velocity measuring system in high-power DC motor;

And the direct current motor is given.

And we expect the direct current motor with the input u*(t) to make rotational speed ω reach the steady rotational speed within short time.

With the excellent function of Flash about cartoon,this soft can monitor the lighting change of bulb and the rotating speed change,the sound change of direct current motor,which are common load in power electronic circuit,as while as the control angle α is changed.

Based on the analysis for structure and application characteristics of gasoline hedgerow prune machine,brought forward a scheme that using accumulators as energy sources,DC electromotor substituting the gasoline motor,realized figuration in one step by pruning simultaneously on the three hedgerow surfaces to be pruned,a go-cart substituting hand holding operation of workers.

The DC electromotor is driven by its pulse-width modulation output,thus further controlling the velocity and the trend of targets.

The paper researches and designes the circuit diagram between magnetic flux Φ and magnetizing current Iφ on DC electromotor.