Motor Control Solutions

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Motor Control Solutions
Applications and Products
Industrial Product Marketing
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powerSPIN
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SALES TOOLS
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System Integration with Integrated ICs
power circuit feeding the motor
including level shifters
device incorporating
and protection circuits
all necessary logic and power circuits
INPUT
for driving the motor
INPUT
POWER
POWER
Driver
Power Stage
Controller

LOGIC

LOGIC
Switch
Driving
SIGNALS
SIGNALS
Array
Section
logic circuit that generates
the proper command pattern
for the power stage
Sensors
voltage and current
level shifters
(gate drivers)
linear or switchmode
electronic components
(MOSFETs, BJTs, IGBTs)
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New PowerSpin Product Range

• Operating supply voltage from 8 to 52V
• Power MOS output stage
• RDS(ON) 0.3 ? or 0.7 ?
• Intrinsic Fast Free Wheeling Diodes
• Output current rating
• L620x L6235 5.6 A peak and 2.8 A rms,
• L622x 2.8 A peak and 1.4 A rms
• Non-dissipative over current protection
• Cross conduction protection
• Thermal protection
• Under voltage lock out

PowerSO36
DIP24
SO24
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Stepper Motor
Stepper motors are ideally suited to application
requiring precise position control such as
computer peripherals or numerically controlled
machine tools
Most commonly used stepper
motor
N
H-Bridge
N
S
Permanent Magnet stepper motor
N
S
S
Bipolar
Unipolar
Hybrid stepper motor
Driving methods
H-Bridge
Half step
Full Step two phase-on
Microstepping
Step
signals
Rotation Position is Controlled in Steps
Permanent
Magnet Rotor

Major Applications
A typical stepper motor has permanent magnets on
the rotor and a pair of coils on the stator
Printers, Copiers, Bill
Transport, Automotive,
Medical, Factory Automation
Machine tools
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Two Phase Bipolar Stepper Motor DriveMonolithic
(Integrated) Approach
8 to 45 V
Power supply
Controller
MCU
Dual H-Bridge
Interface
ST72264 ST7Lite
RS232
Transceiver
ST232
L6207 L6208
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L6207 Dual Full Bridge with PWM Current Control
VSA

OCD

OUT1A
FULL BRIDGE
ENA
OUT2A
GATE
IN1A

LOGIC
SENSEA
IN2A
VREFA

PWM CURRENT REGULATOR
RCA
Vboot

VBOOT

THERMAL

PROTECTION
CHARGE
VCP

PUMP
VSB

OCD

OUT1B
FULL BRIDGE
ENB
OUT2B
GATE
IN1B

LOGIC
SENSEB
IN2B
VREFB

PWM CURRENT REGULATOR
RCB
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L6208 Fully Integrated Stepper Motor Driver
VSA

OCD

OUT1A
FULL BRIDGE
OUT2A
GATE

LOGIC
SENSEA
VREFA

PWM CURRENT REGULATOR
RCA
EN
Phase Sequence Generator
CONTROL
Vboot

VBOOT
HALF / FULL
THERMAL

PROTECTION

CLOCK
RESET
CHARGE
VCP

PUMP
CW / CCW
VSB


OCD
OUT1B
FULL BRIDGE
OUT2B
GATE

LOGIC
SENSEB
VREFB

PWM CURRENT REGULATOR
RCB
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BLDC Motor Drive Integrated IC Solution
3-phase inverter stage
DC
Motor
AC
MCU
Power supply
Interface
L6235
Hall-Effect feedback
ST7 Family
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L6235 Fully Integrated 3-Phase Brushless Motor
Driver
VSA
DIAG

OCD

VSB
3 PHASE BRIDGE
OUT1
THERMAL
OUT2

PROTECTION
OUT3
EN
Phase Sequence Generator
FWD / REV
GATE
SENSEA
BRAKE
LOGIC
SENSEB
H3
H2


H1

PWM CURRENT REGULATOR
RCOFF
TACHO
TACHO Monostable
Vboot

VBOOT
CHARGE PUMP
VCP

RCPULSE
VREF
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PractiSPIN Architecture

• One dedicated board for each device
• A common control board based on ST72264
• Windows Graphical User Interface