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參數(shù)資料
| 型號： | SDC-14562-532 |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 位置變換器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, DIP36 |
| 封裝： | 1.900 X 0.780 INCH, 0.210 INCH HEIGHT, DOUBLE WIDTH, KOVAR, DIP-36 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 196K |
| 代理商： | SDC-14562-532 |
CT MODE
The SDC-14560 can also be used as a solid-state Control
Transformer. This is analogous to the function of the rotary con-
trol transformer except here the rotary shaft input is replaced by
a digital angle. Referring to the equation below, the output is an
AC voltage (e) which varies as the sine of the difference between
the analog input angle and the digital angle.
e = sin(
θ- φ)cosωt
Control transformers are frequently used as error signal genera-
tors in closed servo loops. They are useful when digital remote
control of a position servo must be accomplished.
FIGURE 14 illustrates a block diagram of the Control
Transformer (CT) mode. The procedure to enable this function is
to disable the up-down counter by setting S (pin 30) to logic “0”
and using the digital output lines (which are bidirectional) as dig-
ital inputs.
When the converter is functioning as a CT, the digital inputs are
double buffered, EM is redefined as LM (LATCH MSBs), EL is
redefined as LL (LATCH LSBs) and INH becomes LA (LATCH
ALL).
TRANSFORMERS
FIGURE 15 illustrates the Transformer Connection Diagram.
These transformers are designed for the voltage follower buffer
input option to the SDC-14560. However, the reference trans-
formers may also be used with the solid-state buffer input
options.
Passive transformers are considerably larger in size for 60 Hz
than for 400 Hz. To minimize size, active transformers are utilized
over passive devices for 60 Hz. These active 60 Hz transformers
have op-amp outputs and require connection to a +15 V power
supply.
8
S1
S2
S3
SOLID STATE SYNCHRO INPUT OPTION
ELECTRONIC
SCOTT T
SIN
θ
COS
θ
S1
S2
S3
SOLID STATE RESOLVER INPUT OPTION
RESOLVER
CONDITIONER
SIN
θ
COS
θ
S4
SOLID STATE RESOLVER INPUT OPTION
VOLTAGE
FOLLOWER
BUFFER
SIN
θ
COS
θ
SIN
θ
COS
θ
INPUT OPTIONS
V
INTERNAL
DC
REFERENCE
CONDITIONER
SYNTHESIZED
REF
DEMOD
BIT
DETECT
HIGH ACCURACY
CONTROL
TRANSFORMER
INPUT OPTION
16 BIT CT
TRANSPARENT
LATCH
16 BIT U-D
COUNTER
(SET MODE)
POWER
SUPPLY
CONDITIONER
RESOLVER
INPUT
+5 V
LM(EM)
RESOLUTION
CONTROL
+10 V
INTERNAL DC
REF V (+5 V)
+15
BIT
e
D
R
GAIN
e
SIN
(
θ-φ)
RL
RH
SIN
θ
COS
θ
AB
DIFF
GAIN
OF 2
LL(EL)
+15 V
-15 V
1-8
9-16
LA(INH)
DIGITAL
ANGLE
φ
SET
FIGURE 14. CT MODE BLOCK DIAGRAM
1
3
5
11
15
10
20
T1A
6
T1B
16
S1
S3
S2
SDC-14567
SDC-14569
S
C
V
1
3
2
SYNCHRO
INPUT
1
3
11
15
10
20
T1A
6
T1B
16
S1
S3
S2
SDC-14567
SDC-14569
S
C
V
1
3
2
RESOLVER
INPUT
S4
400 Hz RESOLVER TRANSFORMER T1 21046 OR 21047 OR 21048
400 Hz SYNCHRO TRANSFORMER T1 21044 OR 21045
S3
S2
S1
+15
-S
-Vs
24126
V
S3
S2
SDC-14568
S
C
V
1
3
2
SYNCHRO
INPUT
400 Hz REF TRANSFORMER 21049
60 Hz SYNCHRO TRANSFORMER 24126
S1
+15 V
+C
GND
T2
RH
SDC-14567
RH
RL
20
19
SYNCHRO
INPUT
RL
SDC-14569
10
6
+15 V
RH
RL
V
-R
24133
+R
+15
GND
SDC-14568
19
20
REF
INPUT
60 Hz REF TRANSFORMER 24133
RH
RL
V
RH
RL
1
5
1
FIGURE 15. TRANSFORMER CONNECTION DIAGRAM
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