Z8FMC160100KIT Zilog, Z8FMC160100KIT Datasheet

KIT DEV FOR Z8 ENCORE Z8FMC16100

Z8FMC160100KIT

Manufacturer Part Number
Z8FMC160100KIT
Description
KIT DEV FOR Z8 ENCORE Z8FMC16100
Manufacturer
Zilog
Series
Z8 Encore! MC™r

Specifications of Z8FMC160100KIT

Main Purpose
Power Management, Motor Control
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
Z8FMC16100
Primary Attributes
3-Ph DC Motors
Secondary Attributes
Graphic User Interface
Processor To Be Evaluated
Z8FMC16100
Data Bus Width
8 bit
Interface Type
USB
For Use With
269-4664 - KIT ACC OPTO-ISO USB SMART CABLE269-4661 - KIT ACC ETHERNET SMART CABLE269-4539 - KIT ACCESSORY USB SMART CABLE
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3639
Abstract
This application note discusses the closed loop control of a 3-Phase Brushless Direct Current (BLDC) motor
using the Z8 Encore! MC™ family of Microcontrollers (MCUs). The Z8 Encore! MC™ product family is
designed specifically for motor control applications, featuring an on-chip integrated array of application-
specific analog and digital modules. This in turn results in fast and precise fault control, high system
efficiency, and on-the-fly speed/torque and direction control, as well as ease of firmware development for
customized applications.
This article further discusses ways on how to implement a sensorless feedback control system using a Phase
Locked Loop along with Back EMF sensing. Test results are based on using the Zilog BLDC Motor Control
Development kit Z8FMC160100KITG. This development kit includes a Motor Control Motor Drive System
module with a 32-pin Z8FMC16100 MCU, a 3-Phase Motor Control Application Board and a 3-phase 24-
VDC, 30-W, 3200-RPM BLDC motor with Internal Hall Sensors.
Features
The key features of this reference design include:
require you to modify code supplied with this application note.
Smooth S-curve motor start-up with reduced starting current
Sensorless (Back-EMF) control using Phase Locked Loop feedback
Microcontroller-based overcurrent protection
Selectable Speed or Torque Setting
Selectable Speed or Torque Control
Selectable control of motor direction
LED for max speed indication
LED for motoring running indication
LED for Fault indication
Note: This application note was tested with version 4.11.0 of ZDS II. Subsequent releases of ZDS II might
Copyright ©2010 by Zilog
Application Note
Sensorless Brushless DC Motor
Control with Z8 Encore! MC
Microcontrollers
AN022602-0810
www.zilog.com
®
, Inc. All rights reserved.
TM

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Z8FMC160100KIT Summary of contents

Page 1

... Locked Loop along with Back EMF sensing. Test results are based on using the Zilog BLDC Motor Control Development kit Z8FMC160100KITG. This development kit includes a Motor Control Motor Drive System module with a 32-pin Z8FMC16100 MCU, a 3-Phase Motor Control Application Board and a 3-phase 24- VDC, 30-W, 3200-RPM BLDC motor with Internal Hall Sensors ...

Page 2

Sensorless Brushless DC Motor Control with Z8 Encore! MC Discussion The use of BLDC motors has steadily increased over the last several years as the cost of these motors and the technology to control these motors has decreased and the ...

Page 3

Sensorless Brushless DC Motor Control with Z8 Encore! MC additional hardware for sensor interface. • Sensorless commutation–In the sensorless commutation technique, the back-EMF induced in the idle phase is used to determine the moment of commutation. When the induced idle-phase ...

Page 4

Sensorless Brushless DC Motor Control with Z8 Encore! MC The algorithm for Back EMF sensing is based on the implementation of a Phase Locked Loop (PLL). This is especially advantageous during startup, resulting in a gradual increase in the motor ...

Page 5

Sensorless Brushless DC Motor Control with Z8 Encore! MC that the highest interrupt priority is assigned to the Back EMF sensing event, as this is a critical step for subsequent synchronization of the commutation events. In this case, Timer 0 ...

Page 6

... A. Software Architecture The Z8 Encore! MC™ family of Microcontrollers has FLASH memory and is based on Zilog’s advanced eZ8 8-bit CPU core, providing for closed loop control of single- and multiphase variable speed motors. Target applications are major appliances, HVAC, industrial automation, and consumer electronics. In each of the Z8 Encore! MC™ ...

Page 7

... Namely, if the MCUs clock were to stop functioning, there would be no risk of accomplishing a shutdown in response to an overcurrent fault as there would be if the system’s ADC were involved. All the algorithms have been developed in C using the Zilog ZDS II Integrated Development Environment for ® ...

Page 8

Sensorless Brushless DC Motor Control with Z8 Encore! MC The Phase Locked Loop Back EMF algorithm that has been implemented to provide a smooth startup of the motor is shown in and Figure 4 Figure page 10. ...

Page 9

Sensorless Brushless DC Motor Control with Z8 Encore! MC Figure 5. Proportional Integral (PI) Filter Representation for Back EMF Sensing AN022602-0810 TM Microcontrollers ...

Page 10

Sensorless Brushless DC Motor Control with Z8 Encore! MC AN022602-0810 Table 2. Back EMF Sensing Phase Locked Loop TM Microcontrollers Page ...

Page 11

Sensorless Brushless DC Motor Control with Z8 Encore! MC AN022602-0810 TM Microcontrollers ...

Page 12

Sensorless Brushless DC Motor Control with Z8 Encore! MC The block diagram of the PWM loop is shown in such as communications or additional user interfaces. AN022602-0810 Figure 6 and can also be used for specific application code Figure 6. ...

Page 13

Sensorless Brushless DC Motor Control with Z8 Encore! MC Testing The Phase Locked Loop Back EMF algorithm is critical to a smooth startup and operation. Precise control of the PWM is required to create constant waveforms to the motor, resulting ...

Page 14

... Theses features, along with the powerful eZ8 CPU core and some of the best development tools available in the industry, result in less complex board designs and reduced design cycle time. References The documents associated with Z8 Encore! MC™ Microcontrollers on www.zilog.com are listed below: • BLDC Motor Control Using the Z8FMC16100 Application Brief (AB0005) • ...

Page 15

Appendix A—Schematics , (page 16), and Figure 9 Figure 10 Figure 11 Figure 9. 3-Phase Mortor Control Application Board (Part AN022602-0810 Sensorless Brushless DC Motor Control with Z8 Encore! MC (page 17) show the schematics for the ...

Page 16

Figure 10. 3-Phase MotorControl Application Board (Part AN022602-0810 Sensorless Brushless DC Motor Control with Z8 Encore Microcontrollers Page ...

Page 17

Figure 11. 3-Phase MotorControl Application Board (Part AN022602-0810 Sensorless Brushless DC Motor Control with Z8 Encore Microcontrollers Page ...

Page 18

Motor Control MDS Module. Figure 12 Figure 13 AN022602-0810 Sensorless Brushless DC Motor Control with Z8 Encore! MC Figure 12. Z8FMC16 and MDS Connectors TM Microcontrollers Page ...

Page 19

Figure 13. Z8FMC16 MDS Module (Power and Communications) AN022602-0810 Sensorless Brushless DC Motor Control with Z8 Encore Microcontrollers Page ...

Page 20

... ANY MANNER TO USE OF INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this document has been verified according to the general principles of electrical and mechanical engineering. Z8 Encore trademark and Z8 Encore registered trademark of Zilog, Inc. All other product or service names are the property of their respective owners. AN022602-0810 ...

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