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參數(shù)資料
| 型號： | BC10 |
| 英文描述： | Adaptive Video Cable Equalizer |
| 中文描述： | 工業(yè)控制IC |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 63K |
| 代理商： | BC10 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
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+
–
–
V+
V+
V+
TOP DRIVE 1
BOTTOM DRIVE 1
BRIDGE
LOGIC
TOP DRIVE 2
BOTTOM DRIVE 2
BOTTOM DRIVE 3
TOP DRIVE 3
1/2
1
1/2
2
1/2
3
CURRENT
SENSING
SIGNAL
CONDITIONING
POWER
FAULT
LOGIC
REF IN
FB
PWM
PWM
OSPWM
STEMP
OVERTEMP
SHUTDOWN
OVERCURRENT
CODECODE
LOGIC
OUT 1
OUT 2
OUT 3
GROUND
MOTOR I
HV RTN
S3
S2
S1
SSC
2Q
VCC
HV
HV
HV RTN
∑
∑
FAULT
CT
TORQUE
HS1
HS2
HS3
120
REV
OE
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
M I C R O T E C H N O L O G Y
HIGH PERFORMANCE BRUSHLESS DC MOTOR DRIVER
BC10/BC20
FEATURES
10V TO 500V MOTOR SUPPLY AT 20 A CONTINUOUS
AND 40 A PEAK OUTPUT CURRENT, BC20
10V TO 100V MOTOR SUPPLY AT 10 A CONTINUOUS
AND 20 A PEAK OUTPUT CURRENT, BC10
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
THERMAL PROTECTION
TOP AND BOTTOM RAIL SHORT CIRCUIT PROTECTION
ANTI SHOOT THROUGH DESIGN
50 KHZ INTERNALLY SET PWM FREQUENCY, WHICH
MAY BE LOWERED WITH EXTERNAL CAPACITOR S
SELECTABLE 60
°
OR 120
°
COMMUTATION SEQUENCES
COMMUTATION TRANSITIONS OUTPUT FOR DERIVING
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
TRANSCONDUCTANCE AMPLIfiER DRIVE.
ANALOG REFERENCE, FEEDBACK, AND TORQUE INPUTS
APPLICATIONS
3 PHASE BRUSHLESS MOTOR CONTROL
DESCRIPTION
The BC10 and BC20 Brushless DC Motor Controllers provide
the necessary functions to control conventional 3 phase brushless
dc motors in an open loop or closed loop system. The BC10 is able
to control motors requiring up to 1 kW continuous input power; the
BC20 is able to control larger motors requiring up to 10 kW
continuous input power.
Both controllers drive the motors, generate the PWM, decode
the commutation patterns, multiplex the current sense, and pro-
vide error ampli
fi
cation. Operation with either 60
°
or 120
°
commu-
tation patterns may be selected with a logic input.
Current sense multiplexing is used to make the current monitor
output always proportional to the active motor coils current.
Therefore the current monitor output may be used in generating
transconductance drive for easy servo compensation.
The controller may generate 4-quadrant PWM for applications
requiring continuous transition through zero velocity, or 2 quad-
rant PWM for electrically quieter operation in unidirectional appli-
cations. Direction of rotation may be reversed in 2-quadrant mode
by using the reverse command input. When in 2-quadrant mode
if the motor is stopped or decelerating dynamic braking is auto-
matically applied. In this way deceleration pro
fi
les may be fol-
lowed even when
using 2-quadrant
PWM.
PRELIMINARY
BLOCK DIAGRAM
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