Stepless speed regulation driver for diesel locomotive

Abstract

The invention relates to the technical filed of drivers, in particular to an internal combustion locomotive purpose stepless speed regulation driver. The internal combustion locomotive purpose stepless speed regulation driver comprises a motorman controller, a rising velocity oscillator, a slow down oscillator, a three-phase stepper motor driver U3 and a reset circuit. The motorman controller, the rising velocity oscillator, and the slow down oscillator are all connected with the three-phase stepper motor driver U3, the three-phase output ends of phi1, phi2, and phi3 of the three-phase stepper motor driver U3 are connected with a negative end of a stepping motor after being amplified in the later stage, the positive end of the three-phase stepper motor driver U3 is connected with the public end of the stepping motor, and the reset circuit is arranged in the three-phase stepper motor driver U3. The internal combustion locomotive purpose stepless speed regulation driver greatly simplifies a circuit and reduces power consumption of the whole machine, and the internal combustion locomotive purpose stepless speed regulation driver is strong in anti-interference ability and load capacity, stable in voltage, and wide in adaptable voltage range, integrated circuit (IC) integration block application is small at the same time, driver failure probability is reduced, and the internal combustion locomotive purpose stepless speed regulation driver is easy to use and popularize.

Description

technical field [0001] The invention relates to the technical field of a driver, in particular to a stepless speed regulation driver for a diesel locomotive. Background technique [0002] At present, the stepless speed regulation drivers used on diesel locomotives generally adopt CH250 ring pulse distributor. Since the output current of the output terminals A0, B0 and C0 of the pulse distributor is very small, for example, the output current of the CH250 pulse distributor is about 200- 400μA, and the driving current of the stepping motor is relatively large. For example, the quiescent current of each phase of the 70BF3 stepping motor is 1.35A. In order to meet the driving requirements, the pulse output by the pulse distributor needs to pass through the pulse amplifier before driving the stepping motor. Existing drivers generally use multi-stage drivers or Darlington tubes with larger volumes and field effect tubes with larger amplification factors. The forward and reverse ci...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing drive, such as high failure probability, easy breakdown of static electricity, complex circuit and many application IC integrated blocks, the present invention provides a stepless speed regulation drive for diesel locomotives

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