PicBrush2 - Control two DC motors with PIC

Una coppia di microprocessori PIC per controllare due motori in continua

With this circuit you can control a couple of DC brush motors from a PC thru a I2C bus . You can use this circuit to develop and test your software. Main features are:

Two H bridge, up to 3A, 50V each
Isolation between logic and power circuits
Two DIP for PIC, either PIC16 or PIC18, and headers to connect a PICkit2 programmer
An I2C interface to connect a PC of other programmable device
A (very little) prototyping area

Components

C1, C2, C4, C5	10N	Ceramic or plastic capacitors
C3, C7	1U	Ceramic or plastic capacitors
C6	100U	Electrolytic capacitor, 50V or more (100 V if Vs > 35V)
C8	50U	Electrolytic capacitor, 16V o more
C9, C11, C12	100N	Ceramic or plastic capacitors
C10	220U	Electrolytic capacitor, 50V o più (100 V se Vs > 35V)
D1	4V7	Zener diode 1/2 W, 4,7 V
ISO1	HCPL2630	High speed dual optoisolator ( > 10 Mbit/s) (data sheets)
J1, J2		Motor connectors
J3		Power supply connector ( 12V < Vs < 50V)
J4		I2C connector
J5, J6	PICKIT2	Connector for PICkit2
R1, R2	2K2	Resistor 1/4 W
R3, R4	390	Resistor 1/4 W
R5	1K	Resistor 1/2 W (1 W se Vs > 15V)
R6, R7	1K	Resistor 1/4 W
U1, U2	LMD18200	Power H bridge (data sheets)
U3, U4	PIC16F690	PIC16F690 (or PIC18F14) (data sheets)
Y1, Y2	20MHZ	Crystal - Optional
C13, C14, C15, C16	22P	Ceramic or plastic capacitors - optional

The sample software (C for PIC and VC for Microsoft XP PC), the schematic and the PCB are contained in picBrush2.zip file.

You need to read the license before to use this product

All trademark mentioned herein are property of their respective companies

You will find the original copy of this document on http://www.vincenzov.net.