dsPICDEM MCSM Development Board Guide
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To Introduce Stepper Motor Development Board using dsPICDEM: DV330021
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dsPICDEM MCSM Development Board Guide
- 3. Microchip’s Motor Control Solutions ■ 8 and 16-bit microcontrollers and digital signal controllers ■ MOSFET gate drivers ■ Analog and Interface products ■ Motor control development tools and reference design hardware ■ Motor control algorithms and software
- 4. dsPICDEM MCSM Development Board
- 7. dsPICDEM MCSM Development Board Block Diagram
- 8. Features of dsPIC33FJ32MC204
- 12. Leadshine Stepping Motor (P/N 42HS03) Step Angle 1.8° Step Angle Accuracy +5%(full step, no load) Temperature Rise 80°CMax Ambient Temperature -10°C -- +50°C Insulation Resistance 100MΩmin.500VDC Dielectric Strength 500VAC for one minute Shaft Radial Play 0.06 Max.(450g-load) Shaft Axial Play 0.08 max.(450g-load) Number of Leads 8 except 42HS04 (4 leads)
Hinweis der Redaktion
- Welcome to the training module on dsPICDEM MCSM Development Board
- This training module will be an introduction to a Stepper Motor Development Board using dsPICDEM .
- Microchip provides everything a motor control design engineer needs: low-risk product development, lower total system cost, faster time to market, outstanding technical support and dependable delivery and quality.
- This kit includes the dsPICDEM MCSM Development Board, Stepper Motor, Power Supply, and Plug-in Module (PIM). The hardware topology is very simple; consisting of just the dsPIC® DSC, the drivers and two H bridges. Each MOSFET in the dual H-bridge is controlled by one PWM signal. The powerful PWM module of the dsPIC DSC features independent or complementary control over each of the four PWM pairs, plus an additional override function on each pin, which gives even more control over the power MOSFETs.
- The Microchip dsPICDEM MCSM Development Board is a cost-effective tool for creating unipolar and bipolar stepper motor applications. The board enables the rapid development of both open-loop and current-closed-loop micro-stepping routines using Microchip’s dsPIC33 Motor Control families. This development tool also provides engineers with a control GUI, which allows them to focus on integrating the other application features and fine-tuning the motor’s operation.
- The dsPICDEM board comes with a motor control interface; which has 2-full bridge inverter, 2-phase current sense resistorx, over-current protection, input-output control switches and UART communication port through USB. The device also has built in power supplies, ICSP connector for programming DS pics and RJ-11 connector for programming other devices.
- The dsPIC® DSC devices feature an 8-channel, high-speed PWM with Complementary mode output, a programmable ADC trigger on the PWM reload cycle, digital dead time control, internal shoot-through protection and hardware fault shutdown. These features make the dsPIC DSC an ideal solution for high-performance stepper motor control applications where full control of the full-bridge inverter is required.
- 16-bit Motor Control family dsPIC33F Digital Signal Controller in low-pin count packages featuring 2 PWM generators with independent time bases and the new Peripheral Pin Select capability. Seamless migration options from and to the PIC24F, PIC24H, dsPIC30F & dsPIC33F product families for this device. The dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304 CPU module has a 16-bit (data) modified Harvard architecture with an enhanced instruction set, including significant support for DSP. The CPU has a 24-bit instruction word with a variable length opcode field. The Program Counter (PC) is 23 bits wide and addresses up to 4M x 24 bits of user program memory space.
- Driving a stepper motor in a full-bridge topology requires switching the opposite diagonal MOSFETs on and off at the same time in order to reverse the drive current and to accommodate all possible decay modes. Since all PWMxHx pins are on at the same time (for example, PWM1H1 and PWM1H2), it is not possible to drive all of the high-side MOSFETs with the PWMxHx signals
- All stepping modes are derived from the sinusoidal mode by adjusting the granularity of the driving sine wave. A full step is the largest step and it consists of 90 degrees of one sine wave period. A half step represents half of that and so on. Microstepping is used to increase the rotor position resolution and to reduce vibration and noise in motor operation
- This page gives information for user interface hardware which includes one push button, one potentiometer, 8 PWM led’s, one power on led, 2 usb led, one fault led, device reset push button
- The board comes along with Leadshine 2 phase step motor with 1.8 deg step angle. It can be connected in series , parallel and unipolar. Its max phase current is 1.4A
- The stepper motor used for the demonstration is the Leadshine Stepping Motor (P/N 42HS03). Again, it can be connected in different configuration like Bipolar parallel, Bipolar half-winding, unipolar
- This page gives step wise procedure for Board Setup and to demonstrate stepper motor working in Bipolar mode. Operating the dsPICDEM MCSM Development Board using the on-board POT and switch button cannot offer the flexibility required in most applications
- Thank you for taking the time to view this presentation on “ [ dsPICDEM MCSM Development Board ]” . If you would like to learn more or go on to purchase some of these devices, you may either click on the part list link right beside the play button on the TechCast portal, or simply call our sales hotline. For more technical information you may either visit the [Microchip Technology] site, or if you would prefer to speak to someone live, please call our hotline number, or even use our ‘live chat’ online facility. You may visit element14 e-community to post your questions.