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參數(shù)資料
| 型號： | PJ3842BCS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ELECTRONIC VACUUM, 120V RoHS Compliant: Yes |
| 中文描述： | 高性能電流模式控制器 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大小： | 375K |
| 代理商： | PJ3842BCS |
PJ3842B
High Performance Current Mode Controller
9-15
2002/01.ver.A
FIGURE 20-EXTERNAL CLOCK
SYNCHRONIZATION
FIGURE 21-EXTERNAL DUTY CYCLE CLAMP AND
MULTI UNIT SYNCHRONIZATION
The diode clamp is required if the Sync amplitude is large enough to
the cause the bottom side of C
T
to go more than 300mV below
ground.
FIGURE 22-ADJUSTABLE REDUCTION OF CLAMP
LEVEL
FIGURE 24-ADJUSTABLE BUFFERED REDUCTION
OF CLAMP LEVEL WITH SOFT-STAR
1.44 R
B
f= D
=
(R
A
+R
B
) R
A
+2R
B
FIGURE 23-SOFT-START CIRCUIT
I
soft-Start
=3600c in
μ
F
FIGURE 25-CURRENT SENSING POWER
MOSFET
Virtually lossless current sensing can be achieved with the
implementation of a SENSEFET power switch.For proper operation
during over current conditions.a reduction of the Ipk(max) clamp
level must be implemented.Refer to Figure 22 and 24
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