參數(shù)資料
型號(hào)： PW-83075P6NEW
英文描述： Drives (Power Amplifiers)|3-Phase Torque Controller. Small Plug In Hybrid
中文描述： 驅(qū)動(dòng)器（功率放大器）| 3相轉(zhuǎn)矩控制器。小型插入式混合動(dòng)力
文件頁(yè)數(shù)： 11/23頁(yè)
文件大?。?/td> 342K
代理商： PW-83075P6NEW
11
Data Device Corporation
www.ddc-web.com
PW-8X010P6/8X030P6/8X075P6
D-02/03-0
mode then DISABLE / RESET must be held active while coming
out of sleep mode.
Note: SLEEP_MODE has an internal pull-up resistor. If the input
is not connected, it will default to logic high, turning the power
supply and the motor drive off.
V
CC
,V
CC-RTN
(INPUTS)
The V
CC
and V
CC-RTN
are power connections that supply input power
to the internal power supply, the gate drive and fault control circuits.
V
BUS
+, V
BUS
- (INPUTS)
V
BUS
+ and V
BUS
- are the high voltage power connections to the
output stage. The high voltage can be either unipolar (+V and
ground) or bipolar (+/- V). Care must be taken to ensure that the
transient bus voltage V
BUS
at the module terminals never
exceeds the absolute maximum supply ratings during switching
excursions.
External capacitor filtering will be required (See
DDC’s Applications Note AN/H-7).
OUTPUT (OUTPUT)
Output is the power switch output that is connected to one input
of the motor and applies V
BUS
+, V
BUS
-, or high impedance to the
motor based on the state of the control inputs. It is capable of
sourcing or sinking up to the rated output current, and can with-
stand a short circuit to V
BUS
+ or V
BUS
- without any damage by
automatically turning itself off (high impedance state).
SHORT CIRCUIT PROTECTION
The PW-8X010P6, PW-8X030P6 and PW-8X075P6 modules
have provisions for complete short circuit protection from either a
hard or soft short to the V
BUS
+ or V
BUS
- lines. Each output tran-
sistor on all PW-8X010P6, PW-8X030P6 and PW-8X075P6 mod-
ules are protected from a hard (direct, low impedance) short to the
V
BUS
+ or V
BUS
- lines by circuitry that detects the de-saturation
voltage for that transistor during a short condition. Once a hard
short circuit condition is detected, the affected output transistor is
shut down and SC FAULT output is set active (logic low (L)). The
SC FAULT signal can be used by a controller as a signal to initiate
a fault routine to reset or shut down the system. The DISABLE /
RESET input can be used to shut down the gate drivers if a short
persists. If the AUTO RESET is tied to SC FAULT, the circuit will
automatically reset when a fault occurs.
FAULT and reactivates the output transistor within the tcycle.auto
time period. If the short is still present, the circuit will repeat the
shut down and automatically reset until the short is clear.
This inactivates SC
Protection against a soft-short requires the addition of current
sensing Magnum Motor Drive modules and external circuitry.
When a soft short occurs, the external circuit can set DISABLE /
RESET low (L) to shut down the gate drivers.
PW-84010P6, PW-84030P6 AND PW-84075P6
I/O AND OPERATION
PW-84010P6, PW-84030P6 and PW-84075P6 modules can be
added to a motor drive to provide current monitoring and overcur-
rent protection capability. The following section describes the PW-
84010P6, PW-84030P6 and PW-84075P6 modules and their fea-
tures.
V
DD
, V
DD-RTN
V
DD
and V
DD-RTN
supplies input power to the current amplifier.
V
IRSENSE
(OUTPUT)
V
IRSENSE
is an output that provides a voltage proportional to the
current passing through R
SENSE
. The voltage is scaled by a ref-
erence voltage V
REF
and is equal to V
REF
/2 to represent zero
current. A voltage greater than V
REF
/2 indicates a positive cur-
rent flow (positive voltage from R
SENSE
+ to R
SENSE
-) through
R
SENSE
. See FIGURE 1B.
This V
IRSENSE
voltage is scaled by the input voltage at V
IREF
, where:
V
IRSENSE
= (V
REF
/2) + (V
REF
/168) * (I
R
SENSE
)
Note: I
RSENSE
is current flowing through R
SENSE
. Zero amps in
R
SENSE
is indicated when V
IRSENSE
= V
REF
/2. A voltage greater
(less) than V
REF
/2 indicates a positive (negative) current flow
through R
SENSE
with a value defined by the V
IRSENSE
equation.
V
IRSENSE
is electrically isolated from the output stage. A positive
(negative) current flow from R
SENSE
+ to R
SENSE
- produces a
positive (negative) voltage measurement (See FIGURE 1B).
When the power supply is shut down (SLEEP_MODE input
high), the voltage at V
IRSENSE
will indicate 0V.
Note: During normal operation 0 Volts at V
IRSENSE
represents
maximum negative current.
V
REF
(INPUT)
A precision voltage reference from an external source is con-
nected to the V
REF
pin to set the output voltage scale for
V
IRSENSE
and V
IRSENSE_ABS
. Note:The accuracy of the V
IRSENSE
and V
IRSENSE_ABS
outputs are subject to the accuracy and tem-
perature coefficient of V
REF
.These must be taken into account in
calculating the overall accuracy of V
IRSENSE
.
R
SENSE
+, R
SENSE
- (INPUTS)
The R
SENSE
+ and R
SENSE
- pins are connected to an internal
shunt resistor and monitoring circuitry. These pins can be con-
nected anywhere within the isolation restrictions on the pins
(600V to power pins, 2500V to logic pins). These pins are typi-
cally connected in series with the OUTPUT, V
BUS
+ or V
BUS
-, to
measure motor drive current.
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