Motor Controller | Electronic Project Circuits

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DC Servo Motor Driver by PIC16C71

A Servo Motor is a small device that has an output shaft which can be positioned to specific angular positions by sending the servo a Pulse Coded Modulation signal. As the coded signal changes, the angular position of the shaft changes. DC servo motors are used in radio controlled airplanes, radio controlled cars, robots and a host of other applications that one can think of. A picture of a servo motor is as shown below.

Source:http://www.electronics-project-design.com/DCservoMotor.html
Thank you.

Be the first to comment - What do you think? Posted by admin - March 13, 2008 at 10:24 am

Categories: Electronic Control, Microcontroller, Motor controller Tags: motor control, Motor controller, pic-microcontroller

Control stepping motor via USB interface by PIC18F4550

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 6 for PC Host software. USB devices side Figure 1. is the schematic for this example.PIC18F4550 is the main devices that communicate with PC and control stepping motor. The power supply came from +5V Vbus for circuit except +Vmotor which must use external power supply that depend on stepping motor requires. If you add more components into circuit that drawn total current more than 250mA you should be use +5V external power supply instead Vbus.Becuase Vbus can supplies current not more than 250mA and don’t forgot to disconnect Vbus out of circuit.

Read More Source:http://www.sixca.com/eng/articles/usbstepping/index.html

http://electronics-diy.com

Be the first to comment - What do you think? Posted by admin - March 3, 2008 at 1:09 pm

Categories: Microcontroller, Motor controller Tags: Motor controller, pic-microcontroller, usb interface board

Pulse Width Modulators using LM339

The first example uses the standard op-amp oscillator circuit to generate a triangular waveform which is level-shifted and fed to a comparator (e.g. LM339) to give the PWM waveform. Most people will want to use two comparators rather than one op-amp and one comparator so that is what we show here.
Read More Source:http://www.4qdtec.com/pwmmod.html