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Apex Microtechnology Corporation - Motion Control

Numéro de référence BC05A
Description Motion Control
Fabricant Apex Microtechnology Corporation 
Logo Apex Microtechnology Corporation 





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BC05A fiche technique
MICROTECHNOLOGY
HIGH PERFORMANCE BRUSHLESS DC MOTOR DRIVER
BC05 • BC05A
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• 10V TO 200V MOTOR SUPPLY AT 5A CONTINUOUS
AND 10A PEAK OUTPUT CURRENT
• OPERATION WITH 10.8V TO 16V VCC, ALLOWING
NOMINAL 12V OR 15 V VCC SUPPLIES
• THREE PHASE FULL BRIDGE OPERATION WITH 2 OR
4 QUADRANT PWM
• AUTOMATIC BRAKING WHEN USING 2 QUADRANT PWM
www.DataSheet4UT.cHoEmRMAL PROTECTION
• ANTI SHOOT THROUGH DESIGN
• 50 KHZ INTERNALLY SET PWM FREQUENCY, WHICH MAY
BE LOWERED WITH EXTERNAL CAPACITORS
• SELECTABLE 60° OR 120° COMMUTATION SEQUENCES
• COMMUTATION TRANSITIONS OUTPUT FOR DERIVING
DESCRIPTION
The BC05 Brushless DC Motor Controller provides the
necessary functions to control conventional 3-phase brushless
DC motors in an open loop or closed loop system. The BC05
SPEED CONTROL
• MAY BE USED OPEN LOOP, OR WITHIN A FEEDBACK
LOOP
• ANALOG MOTOR CURRENT MONITOR OUTPUT, MAY BE
USED FOR TORQUE CONTROL OR FOR TRANSCONDUC-
TANCE AMPLIFIER DRIVE.
is able to control motors requiring up to 1kW continuous
input power.
The controller drives the motor, generates the PWM,
decodes the commutation patterns, multiplexes the current
sense, and provides error amplification. Operation with
either 60° or 120° commutation patterns may be selected
with a logic input.
• ANALOG REFERENCE, FEEDBACK, AND TORQUE INPUTS
Current sense multiplexing is used to make the current
monitor output always proportional to the active motor
APPLICATIONS
coils current. Therefore the current monitor output may
be used in generating transconductance drive for easy
• 3 PHASE BRUSHLESS MOTOR CONTROL
servo compensation.
The controller may generate 4-quadrant PWM for applica-
BLOCK DIAGRAM
SSC
18
OE 19
HS1 6
HS2 7
HS3 8
120 22
REV 21
COMMUTATION
DECODE
LOGIC
tions requiring continuous transition through zero velocity, or
2Q
VCC
HV
20 2 9
TOP DRIVE 1
BOTTOM DRIVE 1
V+
1/2
BRIDGE
1
OUT 1
10
S1
2 quadrant PWM for
HV electrically quieter
operation in unidirec-
tional applications.
Direction of rotation
may be reversed in
13 2-quadrant mode by
BRIDGE
CONTROL
LOGIC
using the reverse
command input.
REF IN 23
V+ When in 2-quadrant
+
∑ ∑+
X10
X10
––
PWM
COMPARATOR
PWM
TOP DRIVE 2
BOTTOM DRIVE 2
1/2
BRIDGE
2
OUT 2
11
S2
15
mode if the motor is
stopped or deceler-
ating dynamic brak-
ing is automatically
FB 24
TEMP
SENSING
OVERTEMP
SHUTDOWN
TOP DRIVE 3
BOTTOM DRIVE 3
V+
1/2
BRIDGE
3
OUT 3
12
S3
applied. In this way
deceleration profiles
may be followed even
when using 2-quad-
rant PWM.
14
PWM
OSCILLATOR
POWER
FAULT OVERCURRENT
LOGIC
CURRENT
SENSING
SIGNAL
CONDITIONING
HV RTN
16
HV RTN
4
TORQUE
CT 3
17
FAULT
5
MOTOR I
GROUND 1
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected]
1

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