Broadcom ACPL-32JT Panduan Pengguna - Halaman 4
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Halaman Cetak
ACPL-32JT, ACPL-C87AT
Bus Voltage Sensing
Bus voltage is sensed through a precision resistor chain. ACPL-C87AT optically isolates the signal for transmission to a
microcontroller (output Voltage Sense Output (VSO) on P1 header).
The Bus Voltage Sense Ratio may be calculated as follows:
=
Bus Voltage Sense Ratio
=
=
Connection Interface (Connector Header P1)
Pin
Name
1
FLU
3
ULU
5
FLV
7
ULV
9
FLW
11
ULW
13
UHU
15
FHU
17
UHV
19
FHV
21
UHW
23
FHW
2
PWMLW
4
PWMHW
6
PWMLV
8
PWMHV
10
PWMLU
12
PWMHU
14
DC12
16
GND1
18
GND1
20
VSO
22
OT1
24
OT2
+
R146
R147
----------------------------------------------------------------------------------------------------------
+
+
+
R142
R143
R144
R145
+
2k
2k
-------------------------------------------------------------------------------------------
+
+
+
+
200k
200k
200k
200k
4.975 mV/V
Type
LEVEL
OUT
TTL
Fault Feedback for U-bottom
OUT
TTL
Under-Voltage Lock Out Feedback for
U-bottom
OUT
TTL
Fault Feedback for V-bottom
OUT
TTL
Under-Voltage Lock Out Feedback for
V-bottom
OUT
TTL
Fault Feedback for W-bottom
OUT
TTL
Under-Voltage Lock Out Feedback for
W-bottom
OUT
TTL
Under-Voltage Lock Out Feedback for U-top L: Under-Voltage Lock Out
OUT
TTL
Fault Feedback for U-top
OUT
TTL
Under-Voltage Lock Out Feedback for V-top L: Under-Voltage Lock Out
OUT
TTL
Fault Feedback for V-top
OUT
TTL
Under-Voltage Lock Out Feedback for W-top L: Under-Voltage Lock Out
OUT
TTL
Fault Feedback for W-top
IN
TTL
PWM input for W-bottom
IN
TTL
PWM input for W-top
IN
TTL
PWM input for V-bottom
IN
TTL
PWM input for V-top
IN
TTL
PWM input for U-bottom
IN
TTL
PWM input for U-top
Power
8V to 18V DC power supply
Ground
Ground
Low Voltage Side Ground
Ground
Ground
Low Voltage Side Ground
OUT
Analog
Bus Voltage Sensor Output
(0 to 2V)
OUT
—
Connection to IGBT NTC Thermistor Pin T1
OUT
—
Connection to IGBT NTC Thermistor Pin T2
+
+
R146
R147
+
2k
2k
Item
Broadcom
- 4 -
Logic
L: Fault
L: Under-Voltage Lock Out
L: Fault
L: Under-Voltage Lock Out
L: Fault
L: Under-Voltage Lock Out
L: Fault
L: Fault
L: Fault
H: Led on, L: Led off
H: Led on, L: Led off
H: Led on, L: Led off
H: Led on, L: Led off
H: Led on, L: Led off
H: Led on, L: Led off
—
—
—
Analog (0 to 2V)
—
—
User Guide