参数资料
| 型号： | IRPLMB1E |
| 厂商： | International Rectifier |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN BALLAST 220VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLMB1E |
IRPLMB1E
9. Design Tip: Auto-restart Option
The design can be modified to include re-lamp/auto-
restart option as shown in Fig. 9.1.
The resistors Rsupply must be moved across the
upper lamp filament and the lamp connected to the
is replaced, Rsupply together with the upper filament
of the lamp provide a path from the DC bus to supply
the micro-power current to the IR2520 and to restart
the IR2520 as soon as VCC exceeds the UVLO+
threshold. Rsupply need to be able to handle high
voltage. If using SMD components, 2 resistors are
needed.
bus voltage, instead than to ground. When the lamp
RSUPPLY
DCP2
BR1
VCC
VB
MHS
LAMP
F1
LF
CVCC
1
COM
8
HO
CF
CBUS
RFMIN
2
FMIN
3
VCO
7
VS
6
LO
CBS
LRES
CSNUB
CDC
CRES
CVCO
4
5
MLS
DCP1
Fig. 9.1: Circuit Modification to include auto-restart option
www.irf.com
11
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| IS-DEV KIT-1 | SMARTSWITCH DEVELOPMENT KIT 1 |
| IS-DEV KIT-2 | SMARTSWITCH DEVELOPMENT KIT 2 |
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