Circuit Project Electronic

The following diagram is for the main circuit of the motor driver. A testing version is shown later on this page. The testing circuit is laid out differently and shows the SN7474 in logic block form and LED’s are used to indicate the motor coils being switched.
#The 555 astable oscillator produces a series of [...]

This is an example that demonstration how to control some devices via USB interface.The PC software program with delphi. Feature: - CPU PIC18F4550 with full speed USB interface at 48MHz. - USB 2.0 compliance - Use on-chip USB driver - Control 1 stepping motor. - MPLAB C18 for firmware at USB devices side. - Delphi [...]

Stepper motors are devices, which convert electrical impulses into discrete mechanical rotational movements. In a typical stepper motor, power is applied to two coils. Two stator cups formed around each of these coils, with pole pairs mechanically offset by ½ a pole pitch, become alternately energized North and South magnetic poles. Between the two stator-coil [...]