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參數(shù)資料
| 型號： | IRPLLNR1 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 130K |
| 代理商： | IRPLLNR1 |
Reference Design Data Sheet intended for design information only.
Subjected to changes without prior notice.
3
IRPLLNR1
Functional Description
Overview
The IRPLLNR1 consists of a power factor front end, a ballast control section, a resonant lamp
output stage and shutdown circuitry. The power factor controller is a boost converter
operating in critically continuous, free-running frequency mode. The ballast control section
provides frequency modulation control of a traditional RCL series-parallel lamp resonant
output circuit and is easily adaptable to a wide variety of lamp types. The shutdown section
consists of lamp circuit current detection and comparator logic for safe turn-off and smooth
auto re-starting. All functional descriptions are referred to the IRPLLNR1 schematic.
Power Factor Control
The power factor controller section consists of the LinFinity LX1562 Power Factor Controller
IC (IC1), MOSFET M1, inductor L3, diode D5, capacitor C8 and additional biasing, sensing
and compensation components (see schematic). This IC was chosen for its minimal
component count, low start-up supply current and robust error amplifier. This is a boost
topology designed to step-up and regulate the output DC bus voltage while drawing sinusoidal
input current from the line (low THD) which is “in phase” with the AC input line voltage (HPF).
The charging current of L3 is sensed in the source of M1 (R7) and the zero-crossing of the
inductor current, as it charges the DC bus capacitor C8, is sensed by a secondary winding on
L3. The result is critically continuous, free-running frequency operation where:
L
V
V
2
V
P V
f
in
out
in
out
s
3
2
2
=
(
)
[1]
I
P
V
L
out
in
p
=
2 2
min
[2]
where,
=
efficiency
nominal AC input voltage
DC bus voltage
lamp power
switching frequency
V
in
=
V
out
=
P
out
=
f
s
=
The value of the boost inductor (L3) can be calculated and the core should be dimensioned to
handle the associated inductor peak currents (
I
L
p
) for the desired range of AC input voltage.
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| IRPLLNR2E | 功能描述:KIT BALLAST LINEAR INT 230VAC RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IRPLLNR2U | 功能描述:BALLAST 32W/T8 120V AC IR21571 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IRPLLNR3 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Universal Input Linear Fluorescent Ballast using the IR2167 |
| IRPLLNR4 | 功能描述:BALLAST UNIV INP FLUOR IR2166 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IRPLLNR5 | 功能描述:電源管理IC開發(fā)工具 Uni Inpt Lin Fluor Ballast 54W TL5 Lamp RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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