参数资料
| 型号： | IRPLMB1E |
| 厂商： | International Rectifier |
| 文件页数： | 3/13页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN BALLAST 220VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLMB1E |
IRPLMB1E
5. Circuit Description
The schematic for MINIBALLAST1 is shown in figure
5.1. The BOM with the components values is shown
in table 5.2.
The ballast incorporates a fuse, EMI filter, input recti-
fier, bus capacitor, half-bridge, control and output
stage. The output stage is the classical resonant
circuit consisting of an inductor, LRES, and a capaci-
tor, CRES. The circuit is built around the IR2520D
Ballast Control IC. The IR2520 provides adjustable
preheat time, adjustable run frequency to set the lamp
power, high starting frequency (about 2.5 times fmin)
to avoid lamp flash, capacitive mode protection for
open filament condition and current crest factor
The AC line input voltage is rectified to provide a bus
voltage of approximately 300 volts. The start up
resistor, Rsupply (in the reference design we have 2
resistors, Rsupply and Rsupply 2 in series), is sized
such that they can supply the micro-power current
during under-voltage lockout (UVLO). When VCC
exceeds the UVLO+ threshold, the IR2520 begins to
oscillate and the charge pump circuit (CSNUB, DCP1
and DCP2) supplies the current to VCC that causes
the internal 15.6V zener clamp to regulate.
The IR2520 Ballast Control IC controls the frequency
of the half-bridge programming the right parameters
on the lamp to provide lamp preheat, lamp ignition,
running mode, low AC line protection and lamp/
ballast fault protection.
protection for failure to strike or no lamp conditions.
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
CRES
CVCO
4
5
MLS
CDC
DCP1
Fig. 5.1) MINIBALLAST1 Circuit Diagram
www.irf.com
3
相关PDF资料 |
PDF描述 |
|---|---|
| IS-418-TR1509-12 | POWER SUPPLY 240VAC FOR DEV KIT |
| IS-DEM KIT-2 | SMARTDISPLAY DEMONSTRATION KIT 2 |
| IS-DEV KIT-1 | SMARTSWITCH DEVELOPMENT KIT 1 |
| IS-DEV KIT-2 | SMARTSWITCH DEVELOPMENT KIT 2 |
| IS-DEV KIT-6C | KIT DEV LCD 64X32 COMPACT SWITCH |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR-POST-B | 制造商:Knoll Systems 功能描述:Single Target IR Repeater Kit with Black Postage Stamp Receiver 制造商:KNOLL SYSTEMS 功能描述:IR REPEATER COMPLETE KIT BLACK POSTAGE STAMP RECEIVER |
| IRPP3624-05A | 制造商:International Rectifier 功能描述:5 AMP SINGLE PHASE SYNCHRONOUS BUCK POWER+ CHIPSET REFERENCE - Bulk 制造商:International Rectifier 功能描述:DEMO BOARD KIT FOR 3624SPBF 5A 制造商:IR 功能描述:Single Phase 5 A Synchronous Buck Reference Design |
| IRPP3624-12A | 功能描述:电源管理IC开发工具 12 AMP 1 PHASE SYNC BUCK PWR+ RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRPP3637-06A | 功能描述:电源管理IC开发工具 6 AMP 1 PHASE SYNC 5V IN 1.25 OUTPUT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRPP3637-12A | 功能描述:电源管理IC开发工具 12A Single-Ph REF IR3637 PWM IRF7823 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
发布紧急采购，3分钟左右您将得到回复。